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 changed, OnStar may send a voice message to the vehicle, requesting updated account information.
See also:
Trailer Gain Adjustment Procedure
Trailer Gain should be set for a specific trailering condition and must be adjusted any time vehicle loading, trailer loading, or road surface conditions change.
Setting the Trailer Gain properly is ...
Interior
Base-model SL G1500 vans have vinyl high-back front buckets and a pair of
rear bench seats for eight-passenger capacity. A dozen people fit into the
G2500/3500 vans, seated on twin three-passenger ...
Trailer Wiring Harness
The vehicle is equipped with one of the following wiring harnesses for towing a trailer or hauling a slide-in camper. ...