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 ...

Safety Belt Care
Keep belts clean and dry. WARNING Do not bleach or dye safety belts. It may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only wi ...

Weight of the Trailer
How heavy can a trailer safely be? It should never weigh more than 450 kg (1,000 lbs). But even that can be too heavy. Speed, altitude, road grades, outside temperature, special equipment, ...