Page 119: Table Of Contents
Instruments and Controls Controls Steering Wheel Adjustment . . . 5-2 Steering Wheel Controls ..5-2 Horn ......5-4 Windshield Wiper/Washer .
Page 120: Instruments And Controls
Instruments and Controls Controls Steering Wheel Adjustment For vehicles with a tilt steering wheel, the lever is located on the left side of the steering column. To adjust the steering wheel: 1. Pull the lever to move the steering wheel up or down into a comfortable position.
Page 121 Selecting Tracks on an iPod or USB Device 1. Press and hold while listening to a song until the contents of the current folder display on the radio display. 2. Press and release to scroll up or down the list, then press and hold , or press play the highlighted track.
Page 122: Horn
Instruments and Controls Horn Press the horn symbol in the middle of the steering wheel to sound the horn. Windshield Wiper/Washer The windshield wiper control is located on the multifunction lever on the left side of the steering wheel. Turn the band with on it to select the wiper speed.
Page 123: Compass
Compass This vehicle may have a compass in the Driver Information Center (DIC). Compass Zone Your dealer will set the correct zone for your location. Under certain circumstances, such as during a long distance cross-country trip or moving to a new state or province, it will be necessary to compensate for compass variance by resetting the...
Page 124 Instruments and Controls Compass Calibration The compass can be manually calibrated. Only calibrate the compass in a magnetically clean and safe location, such as an open parking lot, where driving the vehicle in circles is not a danger. It is suggested to calibrate away from tall buildings, utility wires, manhole covers, or other industrial structures, if possible.
Page 125: Clock
Clock AM/FM Radio with Optional CD Player If the vehicle has an AM/FM radio with an optional CD player, it has a button for setting the time. With these types of radios, the clock can be set with either the radio turned on or off.
Page 126 Instruments and Controls Changing the Time and Date Default Settings You can change the time default setting from 12 hours to 24 hours or change the date default setting from month/day/year to day/month/year. To change the time or date default settings, follow these instructions: 1.
Page 127: Power Outlets
2. Press the softkey located under the desired option. 3. Press the MENU button again to apply the selected default, or let the screen time out. Power Outlets The accessory power outlets can be used to plug in electrical equipment, such as a cell phone or an MP3 player.
Page 128: Ashtrays
5-10 Instruments and Controls Ashtrays For vehicles with an ashtray it is located in the center console or on the instrument panel. Pull up on the ashtray door to open it if it is in the console or pull the door open it if it is on the instrument panel.
Page 129: Instrument Cluster
Instruments and Controls 5-11 Instrument Cluster English 4 Speed Version Shown, 6 Speed and Metric Similar...
Page 130: Speedometer
5-12 Instruments and Controls If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. Speedometer The speedometer shows the vehicle speed in both kilometers per hour (km/h) and miles per hour (mph). Odometer The odometer shows how far the vehicle has been driven, in either miles or kilometers.
Page 131: Fuel Gauge
Fuel Gauge Metric Instruments and Controls English The fuel gauge, when the ignition is on, indicates how much fuel is left in the vehicle fuel tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The gauge first indicates empty before the vehicle is out of fuel, and the fuel tank should be...
Page 132: Engine Oil Pressure
5-14 Instruments and Controls Engine Oil Pressure Gauge Metric English The oil pressure gauge shows the engine oil pressure in psi (pounds per square inch) or kPa (kilopascals) when the engine is running. Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range.
Page 133: Engine Coolant Temperature
Engine Coolant Temperature Gauge Metric Instruments and Controls English This gauge shows the engine coolant temperature. It also provides an indicator of how hard the vehicle is working. During a majority of the operation, the gauge wil read 100°C (210°F) or less. 5-15 If the vehicle is pulling a load or going up hills, it is normal for the...
Page 134: Voltmeter Gauge
5-16 Instruments and Controls Voltmeter Gauge When the engine is not running, but the ignition is on, this gauge shows the battery's state of charge in DC volts. When the engine is running, the gauge shows the condition of the charging system.
Page 135: Airbag Readiness Light
Passenger Safety Belt Reminder Light For vehicles equipped with the passenger safety belt reminder light, several seconds after the engine is started, a chime sounds for several seconds to remind the front passenger to buckle their safety belt. The passenger safety belt light flashes and then stays on solid until the belt is buckled.
Page 136: Airbag On-Off Light
5-18 Instruments and Controls For vehicles with a remote start, the airbag readiness light will stay on until the driver places the ignition switch to the ON/RUN position. If there is a problem with the airbag system, an airbag Driver Information Center (DIC) message can also come on.
Page 137: Passenger Airbag Status
WARNING If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. For example, the right front passenger airbag could inflate even though the airbag on-off switch is turned off. To help avoid injury to yourself or others, have the vehicle serviced right away.
Page 138: Charging System Light
5-20 Instruments and Controls If the word ON or the on symbol is lit on the passenger airbag status indicator, it means that the right front passenger frontal airbag is enabled, and may inflate. If the word OFF or the off symbol is lit on the airbag status indicator, it means that the passenger sensing system has turned off the right front...
Page 139: Malfunction
Malfunction Indicator Lamp A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors operation of the fuel, ignition, and emission control systems. It ensures that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment.
Page 140 5-22 Instruments and Controls To prevent more serious damage to the vehicle: Reduce vehicle speed. Avoid hard accelerations. Avoid steep uphill grades. If towing a trailer, reduce the amount of cargo being hauled as soon as it is possible. If the light continues to flash, when it is safe to do so, stop the vehicle.
Page 141 If one or more of these conditions occurs, change the fuel brand used. It will require at least one full tank of the proper fuel to turn the light off. If none of the above have made the light turn off, your dealer can check the vehicle.
Page 142: Brake System Warning
5-24 Instruments and Controls Brake System Warning Light The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working.
Page 143: Antilock Brake System (Abs)
Antilock Brake System (ABS) Warning Light For vehicles with the Antilock Brake System (ABS), this light comes on briefly when the engine is started. If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light then goes off.
Page 144: Tire Pressure Light
5-26 Instruments and Controls Tire Pressure Light For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. When the Light is On Steady This indicates that one or more of the tires are significantly underinflated.
Page 145: Security Light
Security Light This light should could come on briefly when the vehicle is started and then it goes out. If it does not, see your dealer for service. For information regarding this light and the vehicle's security system, Instruments and Controls High-Beam On Light This light comes on when the high-beam headlamps are in use.
Page 146: Information Displays
5-28 Instruments and Controls Information Displays Driver Information Center (DIC) This vehicle has a Driver Information Center (DIC). All messages will appear in the DIC display located at the bottom of the instrument panel cluster. The DIC buttons are located on the instrument panel, next to the instrument panel cluster.
Page 147 (Trip/Fuel): Press this button to display the odometer, trip odometers, fuel range, average economy, fuel used, timer, average speed, and digital tachometer. (Vehicle Information): Press this button to display the oil life, units, tire pressure readings for vehicles with the Tire Pressure Monitor System (TPMS), engine hours, Tire Pressure Monitor System (TPMS) programming for...
Page 148 5-30 Instruments and Controls If the retro-active reset feature is activated after the vehicle is started, but before it begins moving, the display will show the number of kilometers (km) or miles (mi) that were driven during the last ignition cycle.
Page 149 To reset the timer to zero, press and hold while TIMER is displayed. Average Speed Press until AVERAGE SPEED displays. This display shows the average speed of the vehicle in kilometers per hour (km/h) or miles per hour (mph). This average is calculated based on the various vehicle speeds recorded since the last reset of this value.
Page 150 5-32 Instruments and Controls Units Press until UNITS displays. This display allows you to select between metric or English units of measurement. Once in this display, press to select between METRIC or ENGLISH units. Tire Pressure If the vehicle has the Tire Pressure Monitor System (TPMS), the pressure for each tire can be viewed in the DIC.
Page 151: Vehicle Messages
Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing (Set/Reset).
Page 152: Door Ajar Messages
5-34 Instruments and Controls Door Ajar Messages CARGO DOOR OPEN This message displays and a chime sounds if the cargo door is open while the ignition is in ON/RUN. Turn off the vehicle and check the cargo door. Restart the vehicle and check for the message on the DIC display.
Page 153: Engine Oil Messages
ENGINE OVERHEATED IDLE ENGINE If you drive the vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible. for more information. This message displays when the engine coolant temperature is too hot.
Page 154: Engine Power Messages
5-36 Instruments and Controls OIL PRESSURE LOW STOP ENGINE If you drive the vehicle while the engine oil pressure is low, severe engine damage may occur. If a low oil pressure warning appears on the Driver Information Center (DIC), stop the vehicle as soon as possible.
Page 155: Key And Lock Messages
Key and Lock Messages REPLACE BATTERY IN REMOTE KEY This message displays if a Remote Keyless Entry (RKE) transmitter battery is low. The battery needs to be replaced in the transmitter. See Battery Replacement under Lamp Messages AUTOMATIC LIGHT CONTROL OFF This message displays when the automatic headlamps are turned off.
Page 156: Airbag System Messages
5-38 Instruments and Controls STABILITRAK OFF If the vehicle has StabiliTrak, this message displays when you turn off StabiliTrak, or when the stability control has been automatically disabled. To limit wheel spin and realize the full benefits of the stability enhancement system, you should normally leave StabiliTrak on.
Page 157: Anti-Theft Alarm System
Anti-theft Alarm System Messages SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system. The vehicle may or may not restart so you may want to take the vehicle to your dealer before turning off the engine.
Page 158: Tire Messages
5-40 Instruments and Controls Tire Messages CHECK TIRE PRESSURE or TIRE LOW ADD AIR TO TIRE If the vehicle has the Tire Pressure Monitor System (TPMS), this message displays when the pressure in one or more of the tires is low. The low tire pressure warning light will also come on.
Page 159: Transmission Messages
Transmission Messages SERVICE TRANSMISSION This message displays when there is a problem with the transmission. See your dealer for service. TRANSMISSION HOT IDLE ENGINE If you drive the vehicle while the transmission fluid is overheating and the transmission temperature warning is displayed on the instrument panel cluster and/or DIC, you can damage the transmission.
Page 160: Vehicle Personalization
5-42 Instruments and Controls Vehicle Personalization This vehicle may have customization capabilities that allow you to program certain features to one preferred setting. Customization features can only be programmed to one setting on the vehicle and cannot be programmed to a preferred setting for two different drivers.
Page 161 LANGUAGE This feature allows you to select the language in which the DIC messages will appear. Press until the LANGUAGE screen appears on the DIC display. Press once to access the settings for this feature. Then press scroll through the following settings: ENGLISH (default): All messages will appear in English.
Page 162 5-44 Instruments and Controls ALL IN PARK (default): All of the doors will unlock when the vehicle is shifted into P (Park). NO CHANGE: No change will be made to this feature. The current setting will remain. To select a setting, press while the desired setting is displayed on the DIC.
Page 163 Press until REMOTE DOOR UNLOCK appears on the DIC display. Press once to access the settings for this feature. Then press to scroll through the following settings: LIGHTS OFF: The exterior lamps will not flash when you press the RKE transmitter. LIGHTS ON (default): The exterior lamps will flash when you press on the RKE transmitter.
Page 164 5-46 Instruments and Controls NO CHANGE: No change will be made to this feature. The current setting will remain. To select a setting, press while the desired setting is displayed on the DIC. APPROACH LIGHTING This feature allows you to select whether or not to have the exterior lamps turn on briefly during low light periods after unlocking the vehicle...
Page 165 FACTORY SETTINGS This feature allows you to set all of the customization features back to their factory default settings. Press until FACTORY SETTINGS appears on the DIC display. Press once to access the settings for this feature. Then press scroll through the following settings: RESTORE ALL (default): The customization features will be set to their factory default settings.
Page 166 5-48 Instruments and Controls NOTES...
Page 271 General Information ..10-2 California Proposition 65 Warning ....10-3 California Perchlorate Materials Requirements ..10-3 Accessories and Modifications .
Page 272 When It Is Time for New Tires ..... . 10-68 Buying New Tires ... 10-69 Different Size Tires and Wheels .
Page 273 Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems, many fluids, and some component wear by-products contain and/or emit these chemicals.
Page 274 You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it. Be sure you have sufficient knowledge, experience, the proper replacement parts, and tools before attempting any vehicle maintenance task.
Page 275 2. Go to the front of the vehicle and lift up the secondary hood release, which is located underneath the middle of the hood. 3. Lift the hood, release the hood prop from its retainer and put the hood prop into the slot in the hood.
Page 277 B. Radiator Pressure Cap. See C. Coolant Recovery Tank. See D. Automatic Transmission Fluid Dipstick. See Checking the Fluid Level under E. Engine Oil Fill Cap. See When to Add Engine Oil under Engine Oil Dipstick. See Checking Engine Oil under H.
Page 278 It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See for the location of the engine oil dipstick.
Page 279 This certification mark indicates that the oil has been approved to the dexos specification. This vehicle was filled at the factory with dexos approved engine oil. Use of Substitute Engine Oils if dexos is unavailable: In the event that dexos approved engine oil is not available at an oil change or for maintaining proper oil level, you may use substitute engine oil...
Page 280 Cold Temperature Operation: In an area of extreme cold, where the temperature falls below 29°C ( 20°F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures.
Page 281 It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a year. The engine oil and filter must be changed at least once a year and, at this time, the system must be reset.
Page 282 Because this operation can be a little difficult, it may be decided to have this done at the dealer service department. If not taken to the dealer, be sure to follow all the instructions here or a false reading on the dipstick could result.
Page 283 Prepare the vehicle as follows: 1. Park the vehicle on a level place. Keep the engine running. 2. With the parking brake applied, place the shift lever in P (Park). 3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range.
Page 284 Refer to determine what kind of transmission fluid to use. Using a funnel, add fluid down the transmission dipstick tube only after checking the transmission fluid while it is hot. A cold check is used only as a reference. If the fluid level is low, add only enough of the proper fluid to bring the level up to the HOT area for a hot check.
Page 285 Because this operation can be difficult, it is recommended to have this check done at the dealer service department, which can monitor the transmission temperature. The transmission fluid level increases with temperature. To obtain a highly accurate fluid level check, the transmission temperature must be measured.
Page 286 Prepare the vehicle as follows: 1. Park the vehicle on a level place. Keep the engine running. 2. With the parking brake applied, place the shift lever in P (Park). 3. With foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range.
Page 287 4. If the fluid level is in the acceptable range, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place. Refer to determine what kind of transmission fluid to use. A. WARM Range B.
Page 288 If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. The engine air cleaner/filter is located near the center of the engine compartment. See for more information on location. Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi)
Page 289 The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/ filter off. If the vehicle has a diesel engine, see Van Models under Cooling System in the Duramax diesel supplement.
Page 290 The cooling system in the vehicle ® is filled with DEX-COOL engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. The following explains the cooling system and how to check and add coolant when it is low.
Page 291 Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health.
Page 292 If the vehicle has a diesel engine, see How to Add Coolant to the Coolant Recovery Tank under Van Models in the Cooling System section of the Duramax diesel supplement for the proper coolant fill procedure. You can be burned if you spill coolant on hot engine parts.
Page 293 1. Remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise until it first stops. Do not press down while turning the pressure cap.
Page 294 6. Start the engine and let it run until the upper radiator hose can be felt getting hot. Watch out for the engine cooling fan. 7. By this time, the coolant level inside the radiator filler neck may be lower. If the level is lower, add more of the proper DEX-COOL coolant mixture through the filler neck until the...
Page 295 Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood.
Page 296 The vehicle has a clutched engine cooling fan. When the clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the fan is spinning slower and the clutch is not fully engaged. This improves fuel economy and reduces fan noise.
Page 297 To determine what kind of fluid to use, see . Always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals. When the vehicle needs windshield washer fluid, be sure to read the manufacturer's instructions before use.
Page 298 This vehicle has disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound can come and go or be heard all the time the vehicle is moving, except when applying the brake pedal firmly.
Page 299 The brake master cylinder reservoir is filled with DOT 3 brake fluid. See for the location of the reservoir. There are only two reasons why the brake fluid level in the reservoir might go down: The brake fluid level goes down because of normal brake lining wear.
Page 300 After work is done on the brake hydraulic system, make sure the level is above the MIN but not over the MAX mark. Use only new DOT 3 brake fluid from a sealed container. See Always clean the brake fluid reservoir cap and the area around the cap before removing it.
Page 301 Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See for tips on working around a battery without getting hurt. Infrequent Usage: Remove the black, negative ( ) cable from the battery to keep the battery from running down.
Page 302 Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the fill plug hole, some lubricant may need to be added.
Page 303 To get an accurate reading, the vehicle should be on a level surface. If you have the 1500 Series, the proper level is from 15 mm (5/8 in) to 40 mm (1 5/8 in) below the bottom of the fill plug hole. The proper level for the 2500 and 3500 Series is from 0 to 6 mm (1/4 in) below the bottom of the fill plug hole.
Page 304 Among those acts presumed to constitute tampering are the acts listed below. Removal of the noise shields or any underhood insulation. Removal or rendering engine speed governor, if the vehicle has one, inoperative so as to allow engine speed to exceed manufacturer specifications.
Page 305 When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room around the vehicle. It should be parked on a level surface. 2.
Page 306 When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.
Page 307 2. Press down on the blade assembly pivot locking tab. Pull down on the blade assembly to release it from the wiper arm hook. 3. The insert has two notches at one end that are locked by bottom claws of the blade assembly.
Page 308 A. High Beam Headlamp B. Low Beam Headlamp To remove the headlamp assembly from the vehicle and access the bulbs: 1. Open the hood. See for more information. 2. Remove the two bolts from the headlamp assembly. 3. Lift the headlamp assembly to release the lower tabs from the radiator support.
Page 309 7. Install the new bulb into the headlamp assembly and connect the electrical connector. 8. Reverse the steps to reinstall the headlamp assembly. To prevent headlamp vibration and shortened bulb life, be sure to insert the headlamp assembly tabs in the slots at the lower portion of the housing.
Page 310 A. Front Parking and Turn Signal Lamp B. Front Sidemarker Lamp To replace the front turn signal, sidemarker, and/or parking lamp bulb(s): 1. Use a small tool to unlatch the outboard clip on the lamp by pushing inboard and prying the lamp assembly forward.
Page 311 2. The third nut (C) is under the applique piece (B) above the lamp. Remove the two inboard applique nuts. Pull the applique (B) straight rearward slightly to clear the studs. Then rotate the applique (B) just far enough to gain access to the outer push pins (A).
Page 312 The Center High-Mounted Stoplamp (CHMSL) is located above the rear doors at the center of the vehicle. To replace a bulb: 1. Remove the two screws from the CHMSL assembly. 2. Remove the CHMSL assembly. 3. Turn the bulb socket counterclockwise one quarter turn to remove it from the lamp assembly.
Page 313 1. Remove the screws (C) that secure the license plate bulb assembly (B). 2. Turn the bulb socket (A) counterclockwise and pull the bulb straight out of the socket. 3. Install the new bulb. 4. Reverse steps 1 and 2 to reinstall the license plate bulb assembly.
Page 314 The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems.
Page 315 If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage.
Page 316 The vehicle may not be equipped with all of the fuses, relays, and features shown. Right Stop/Turn Trailer Spare Spare Fuel System Control Module Ignition Body Control Module 5 Body Control Module 7 Body Control Module 4 Instrument Panel Cluster Trailer Wiring Spare Brake Switch...
Page 317 Transmission Air Conditioning Compressor Engine Control Module Battery Spare Left Stop/Turn Trailer Spare Spare Fuel Pump Auxiliary Power Outlet Body Control Module 3 Special Equipment Option Airbag Steering Wheel Sensor Engine Control Module Ignition/ Glow Plug Module Transmission Control Module Ignition Transmission Control Module...
Page 318 Body Control Module 2 Body Control Module 1 Spare Oxygen Sensor 2 (Post), EV Fan (Diesel) Spare Mass Air Flow/ Canister Vent Odd Ignition/ Injectors Daytime Running Lamps 2 (LOLVL V22) (If Equipped) Daytime Running Lamps 1 (UPLVL+V22) (If Equipped) Auxiliary Stop Lamps Spare...
Page 319 ABS Motor ABS Module Spare Trailer Wiring Fan High Starter Solenoid Engine Control Module/Powertrain Spare Fan Lo Front Blower Run/Crank Spare Fuel Pump Crank Air Conditioning Compressor Fan High Powertrain Spare Fan Low Fan Control...
Page 320 The floor console fuse block is located under the driver seat. The vehicle may not be equipped with all of the fuses, relays, and features shown.
Page 321 Empty Steering Wheel Sensor Auxiliary Parking Lamps (Cut Away) Front Park Lamps Trailer Park Lamps Upfitter Park Lamps Right Rear Park Lamp Left Rear Park Lamp Outside Rear View Mirror Switch Airbag/Automatic Occupant Sensing ® OnStar (If Equipped) Empty Heating, Ventilation and Air Conditioning 2 Heating,...
Page 322 Front Door Lock Rear Door Lock Cargo Door Unlock Passenger Door Unlock Rear Passenger Door Unlock Driver Door Unlock Empty Empty Upfitter Auxiliary 1 Empty Upfitter Auxiliary 2 Reading Lamps Rear Blower Run (High Current Micro) Empty (High Current Micro) Park Lamps (High Current Micro) Upfitter Auxiliary 2...
Page 323 Underinflated tires pose the same danger as overloaded tires. The resulting crash could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact such as when...
Page 324 Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. GM's TPC specifications meet or exceed all federal safety guidelines. The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S.
Page 325 The tire size code is a combination of letters and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description. See the Tire Size illustration later in this section for more detail. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded...
Page 326 The type of cord and number of plies in the sidewall and under the tread. Maximum load that can be carried and the maximum pressure needed to support that load when used as a single. For information on recommended tire pressure see The following examples show the different parts of a tire size.
Page 327 Diameter of the wheel in inches. These characters represent the load index and speed rating of the tire. The load index represents the load carrying capacity a tire is certified to carry. The speed rating is the maximum speed a tire is certified to carry a load.
Page 328 The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per square inch). The combined weight of optional accessories. Some examples of optional accessories are automatic transmission, power steering, power brakes, power windows, power seats, and air...
Page 329 The side of an asymmetrical tire, that must always face outward when mounted on a vehicle. The metric unit for air pressure. A tire used on light duty trucks and some multipurpose passenger vehicles. An assigned number ranging from 1 to 279 that corresponds to the load carrying capacity of a tire.
Page 330 An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate. The friction between the tire and the road surface. The amount of grip provided. The portion of a tire that comes into contact with the road.
Page 331 The Tire and Loading Information label on the vehicle indicates the original equipment tires and the correct cold tire inflation pressures. The recommended pressure is the minimum air pressure needed to support the vehicle's maximum load carrying capacity. For additional information regarding how much weight the vehicle can carry, and an example of the Tire and Loading...
Page 332 The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings to a receiver located in the vehicle. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended...
Page 333 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310. This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists.
Page 334 The TPMS can warn about a low tire pressure condition but it does not replace normal tire maintenance. See The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire pressure warning light flashes for about one minute and then stays on for the remainder of...
Page 335 Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction. If the TPMS is not functioning properly, it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light and DIC message come on and stay on.
Page 336 5. Place the relearn tool against the tire sidewall, near the valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position. 6.
Page 337 Use this rotation pattern when rotating the tires. If the vehicle has a compact spare tire, do not include it in the tire rotation. Adjust the front and rear tires to the recommended inflation pressure on the Tire and Loading Information label after the tires have been rotated.
Page 338 When the vehicle is new, or whenever a wheel, wheel bolt, or wheel nut is replaced, check the wheel nut torque after 160, 1 600, and 10 000 km (100, 1,000, and 6,000 m) of driving. For proper wheel nut tightening information, see Removing the Flat Tire and Installing the Spare Tire later in this section, under...
Page 339 Some commercial truck tires, including Goodyear LT225/75R16 G949 RSA and Goodyear LT225/ 75R16 G933 RSD, may not have treadwear indicators. If the tires do not have treadwear indicators, replace the tires when the tread depth is down to 3.2 mm (1/8 in) for the front tires, or 1.6 mm (1/16 in) for the rear tires.
Page 340 GM recommends replacing all the tires at the same time. Uniform tread depth on all tires will help to maintain the performance of the vehicle. Braking and handling performance may be adversely affected if all the tires are not replaced at the same time. See information on proper tire rotation.
Page 341 If the vehicle tires must be replaced with a tire that does not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction (radial) as the original tires. Vehicles that have a tire pressure monitoring system could give an inaccurate low pressure warning if non TPC Spec rated tires are...
Page 342: Grading
Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: The following information relates to the system developed by the United States National Highway Traffic Safety Administration (NHTSA), which grades tires by treadwear, traction, and temperature performance.
Page 343 The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.
Page 344 Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it. Some aluminum wheels can be repaired.
Page 345: Tire Chains
Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause you to lose control of the vehicle and you or others may be injured in a crash.
Page 346: If A Tire Goes Flat
It is unusual for a tire to blow out while driving, especially if the tires are maintained properly. If air goes out of a tire, it is much more likely to leak out slowly. But if there ever is a blowout, here are a few tips about what to expect and what to do: If a front tire fails, the flat tire...
Page 347 To help prevent the vehicle from moving: 1. Set the parking brake firmly. 2. Put an automatic transmission in P (Park) or a manual transmission in 1 (First) or R (Reverse). 3. Turn off the engine and do not restart while the vehicle is raised.
Page 348 If you have a van with the 15 passenger seating arrangement, the equipment you will need is secured on the rear floor of the passenger side of the vehicle. To access the equipment, remove the retaining wing bolt and lift it out of the mounting bracket.
Page 349 1. Assemble the wheel wrench (G) to one or two of the jack handle and the hoist extensions (F). Insert the hoist extension end through the hole in the rear bumper. 2. Be sure the hoist extension end connects to the hoist shaft (E). The chiseled end of the extension is used to lower the spare tire.
Page 350 If the vehicle has plastic wheel nut caps, loosen them by turning the wheel wrench counterclockwise. The wheel nut caps are designed to remain with the center cap. Remove the center cap. If the wheel has a smooth center piece, place the chisel end of the wheel wrench in the slot on the wheel and gently pry it out.
Page 351 4. Position the jack under the vehicle as shown. The front position jacking point is on the frame. The rear position jacking point is on the rear axle. If the exhaust system interferes in the jack location in the rear axle, such as in Diesel vehicles, place the jack (A) on the rear axle between the axle housing...
Page 352 6. Remove all the wheel nuts. 7. Take flat tire off of the mounting surface. Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after time. The wheel could come off and cause an accident.
Page 353 9. Put the wheel nuts back on with the rounded end of the nuts toward the wheel. Tighten each wheel nut by hand until the wheel is held against the hub. 10. Lower the vehicle by turning the jack handle counterclockwise.
Page 354 Wheel nuts that are improperly or incorrectly tightened can cause the wheels to become loose or come off. The wheel nuts should be tightened with a torque wrench to the proper torque specification after replacing. Follow the torque specification supplied by the aftermarket manufacturer when using accessory locking wheel nuts.
Page 355 Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place. 1. Put the tire on the ground at the rear of the vehicle with the valve stem pointed down.
Page 356: Secondary Latch System
This vehicle has an underbody-mounted tire hoist assembly equipped with a secondary latch system. It is designed to stop the spare tire from suddenly falling off the vehicle if the cable holding the spare tire is damaged. For the secondary latch to work, the tire must be stowed with the valve stem pointing down.
Page 357 3. Attach the jack handle/jack handle extension and wheel wrench to the jack. 4. Place the jack under the vehicle, ahead of the rear bumper. Position the center lift point of the jack under the center of the spare tire and turn the handle clockwise to raise the jack until it lifts the secondary latch spring.
Page 358 To continue changing the flat tire, return to Step 4 of Storing a Flat or Spare Tire and Tools under This vehicle, when new, may have had a fully-inflated spare tire. A spare tire may lose air over time, so check its inflation pressure regularly.
Page 359 Batteries can hurt you. They can be dangerous because: They contain acid that can burn you. They contain gas that can explode or ignite. They contain enough electricity to burn you. If you do not follow these steps exactly, some or all of these things can hurt you.
Page 360 Using an open flame near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the battery has enough water. You do not need to add water to the battery installed in your new vehicle.
Page 361 Connect it to the positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one. 7. Now connect the black negative ( ) cable to the negative ( ) terminal of the good battery. Use a remote negative ( ) terminal if the vehicle has one.
Page 362 A. Unpainted Metal Part or Remote Negative ( ) Terminal B. Good Battery or Remote Positive (+) and Remote Negative ( ) Terminals C. Dead Battery or Remote Positive (+) Terminal To disconnect the jumper cables from both vehicles, do the following: 1.
Page 363: Towing The Vehicle
Consult your dealer or a professional towing service if the disabled vehicle must be towed. To tow the vehicle behind another vehicle for recreational purposes, such as behind a motorhome, see Recreational Vehicle Towing in this section. Recreational vehicle towing means towing the vehicle behind another vehicle such as behind a motor...
Page 364 Two-wheel-drive vehicles should not be towed with all four wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. The vehicle was not designed to be towed with all four wheels on the ground. To properly tow these vehicles, they should be placed on a platform trailer with all four wheels off the ground.
Page 365 3. Firmly set the parking brake. for more information. 4. Put the transmission in P (Park). 5. Secure the vehicle to the dolly following the manufacturer's instructions. 6. Use an adequate clamping device designed for towing to ensure that the front wheels are locked into the straight position.
Page 366 If dirt and/or contaminants build up in the glass seals, use a cloth and water to clean the glass seals. Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required.
Page 367 Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under Washing the Vehicle. Occasional waxing or mild polishing of the vehicle by hand may be necessary to remove residue from the paint finish.
Page 368 Clean the outside of the windshield with glass cleaner. Clean the rubber blades using a lint free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield thoroughly when cleaning the blades. Bugs, road grime, sap and a buildup of vehicle wash/wax treatments may cause wiper streaking.
Page 369 To clean the tires, use a stiff brush with tire cleaner. If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection.
Page 370 Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface.
Page 371 Products that remove odors from the upholstery and clean the glass can be obtained from your dealer. Do not clean the vehicle using: A knife or any other sharp object to remove a soil from any interior surface. A stiff brush. It can cause damage to the interior surfaces.
Page 372 If the locally cleaned area gives any impression that a ring formation may result, clean the entire surface. After the cleaning process has been completed, a paper towel can be used to blot excess moisture from the fabric or carpet. A soft cloth dampened with water may be used to remove dust.
Page 373 Keep belts clean and dry. Do not bleach or dye safety belts. It may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water. If a floor mat is the wrong size or is not properly installed, it can interfere with the accelerator pedal and/or brake pedal.

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