Lamp Messages
AUTOMATIC LIGHT CONTROL OFF
This message displays when the automatic headlamps are turned off.
This message clears itself after 10 seconds.
AUTOMATIC LIGHT CONTROL ON
This message displays when the automatic headlamps are turned on.
This message clears itself after 10 seconds.
TURN SIGNAL ON
This message displays and a chime sounds if a turn signal is left on for 1.2 km (0.75 mi). Move the turn signal/multifunction lever to the off position.
See also:
Removing the Flat Tire and Installing the Spare Tire
Use the following pictures and instructions to remove the flat tire and raise the vehicle.
A. Jack
B. Wheel Blocks
C. Jack Handle
D. Jack Handle Extension
E. Wheel Wrench
The tools you will be ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...
Temperature – A, B, C
The temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specif ...





