Starting And Operating Your Vehicle; New Vehicle Break-In; Ignition Positions - GMC Jimmy 2004 Owner's Manual

Starting and Operating
Your Vehicle

New Vehicle Break-In

Notice: Your vehicle does not need an elaborate
"break-in." But it will perform better in the long run
if you follow these guidelines:
•
Keep your speed at 55 mph (88 km/h) or less for
the first 500 miles (805 km).
•
Do not drive at any one speed — fast or
slow — for the first 500 miles (805 km).
Do not make full-throttle starts.
•
Avoid making hard stops for the first 200 miles
(322 km) or so. During this time your new brake
linings are not yet broken in. Hard stops with new
linings can mean premature wear and earlier
replacement. Follow this breaking-in guideline
every time you get new brake linings.
•
Do not tow a trailer during break-in. See Towing a
Trailer on page 4-60 for more information.
2-20

Ignition Positions

With the key in the ignition, you can turn it to five
different positions.
Notice: Lengthy operation of features such as the
radio in the accessory ignition position may drain the
battery and prevent your vehicle from starting. Do not
operate your vehicle in the accessory ignition
position for a long period of time.