See also:

Lamps
Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road. - Signs that the headlamps need attention include dimming, failure to light, cracking, o ...

Retrieve My Number
1. Push . System responds: “OnStar ready.”. 2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...

OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advi ...