See also:

How OnStar Service Works
Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn-by-Turn Navigation, and Hands-Free ...

Vehicle Overview
As the 2004 model year began, a midsize luxury sport utility vehicle dubbed Rainier joined the Rendezvous "crossover" model in Buick's lineup. Built with full-frame construction, the Rai ...

What to Add
If the vehicle has DOT 3 brake fluid, as indicated on the reservoir cap, use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants . If the vehicle has DOT 4 b ...