Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Power Seats
A. Seat Position Control
B. Seatback Adjustment Control
C. Lumbar Adjustment Control
To adjust a power seat, if equipped:
- Slide control (A) forward or rearward, and up or down to adjust ...
Traction Control
System (TCS)
The vehicle has a Traction Control
System (TCS) that limits wheel spin.
This is especially useful in
slippery road conditions. On a
rear-wheel-drive vehicle, the system
operates if it senses ...
EPB Release
To release the EPB, turn the ignition
switch to the ON/RUN position,
apply and hold the brake pedal, and
push down momentarily on the EPB
switch. If you attempt to release
the EPB without th ...






