Check Tire Pressure; Battery Saver Active - Chevrolet 2009 Impala Owner's Manual

AUTOMATIC LIGHT CONTROL ON
This message displays when the automatic headlamps
are turned on. See Exterior Lamps on page 3-12 for
more information.

BATTERY SAVER ACTIVE

This message displays when the system detects that the
battery voltage is dropping beyond a reasonable level.
The battery saver system starts reducing certain features
of the vehicle that you may be able to notice. At the point
that the features are disabled, this message is displayed.
It means that the vehicle is trying to save the charge in
the battery.
Turn off all unnecessary accessories to allow the battery
to recharge.
The normal battery voltage range is 11.5 to 15.5 volts.
CHANGE ENGINE OIL SOON
This message displays when service is required for the
vehicle. See your dealer/retailer. See Engine Oil on
page 5-17 and Scheduled Maintenance on page 6-4
for more information.
Acknowledging the CHANGE ENGINE OIL SOON
message will not reset the OIL LIFE REMAINING.
3-50
That must be done at the OIL LIFE screen under the
vehicle information menu. See "Oil Life" under DIC
Operation and Displays on page 3-42 and Engine Oil
Life System on page 5-20.

CHECK TIRE PRESSURE

On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the pressure in
one or more of the vehicle's tires needs to be checked.
This message also displays LEFT FRONT, RIGHT
FRONT, LEFT REAR, or RIGHT REAR to indicate which
tire needs to be checked. You can receive more than
one tire pressure message at a time. To read the other
messages that may have been sent at the same time,
press the set/reset button. If a tire pressure message
appears on the DIC, stop as soon as you can. Have the
tire pressures checked and set to those shown on the
Tire Loading Information label. See Tires on page 5-53,
Loading the Vehicle on page 4-20, and Inflation - Tire
Pressure on page 5-60. The DIC also shows the tire
pressure values. See DIC Operation and Displays on
page 3-42. If the tire pressure is low, the low tire pressure
warning light comes on. See Tire Pressure Light on
page 3-35.