Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody.
Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop.
See also:
Turn Signals When Towing a Trailer
The turn signal indicators on the instrument panel flash whenever signaling
a turn or lane change.
Properly hooked up, the trailer lamps also flash, telling other drivers the
vehicle is turning, ...
OnStar Additional Information
Transferring Service
Push to request account transfer
eligibility information. The Advisor can assist in canceling or removing account
information. If OnStar receives information that vehicle ow ...
Extending Engine Run Time
To extend the engine run time by
10 minutes, repeat Steps 1 and 2
while the engine is still running.
The engine run time can only be
extended if it is the first remote start
since the vehicle ...