OnStar Overview
EmergencyOnStar Additional Information
Transferring Service
Press to request account transfer
eligibility information. The Advisor can assist in canceling or removing account
information.
Selling/Transferring the Vehicle
Call 1-888-4-ONSTAR immediately to terminate your OnStar services if the vehicle
is disposed of, sold, trans ...
Dinghy Towing (with Automatic Transmission)
Caution
If the vehicle is towed with all four wheels on the ground, the
drivetrain components could be damaged. The repairs would not be covered by the
vehicle warranty. Do not tow the vehicle with all four wheels on the ground.
Vehicles with an automatic transmission should not be towed w ...
New Vehicle Break-In
Caution
The vehicle does not need an elaborate break-in. But it will perform
better in the long run if you follow these guidelines:
Do not drive at any one constant speed, fast or slow, for
the first 805 km (500 mi).
Do not make full-throttle starts. Avoid downshifting to brake or slow t ...