See also:

Headlamp Washer
For vehicles with headlamp washers they clear debris from the headlamp lenses. The headlamp washers are beneath the headlamps. Press the washer button at the end of the windshield wiper le ...

Lumbar Adjustment
To adjust the lumbar support: Press and hold the front or rear of the control to increase or decrease lumbar support. Press and hold the top or bottom of the control to raise or lower the ...

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 ownership has ch ...