OnStar Overview
EmergencyExterior Lamp Controls
The exterior lamp control is to the left of the steering column on the instrument
panel.
There are four positions:
(Off): Briefly turn to this position
to turn the automatic lamp control off or on again.
AUTO (Automatic): Turns the headlamps on automatically at normal brightness,
togethe ...
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the vehicle's engine power is reduced.
Reduced engine power can affect the vehicle's ability to accelerate.
If this message is on, but there is no reduction in performance, proceed to your
destination. The performance may be reduced the ...
Traction Control System (TCS)
The vehicle has a Traction Control System (TCS) that limits wheel spin.
On a front-wheel-drive vehicle, the system operates if it senses that one or
both of the front wheels are spinning or beginning to lose traction. When this happens,
the system brakes the spinning wheel(s), and/or reduces en ...