See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Folding Mirrors
For vehicles with manual folding mirrors, push the mirror toward the vehicle. Pull the mirror out to return to its original position. For vehicles with power folding mirrors: 1. Press (A) to fold ...

Safety Chains
Always attach chains between the vehicle and the trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes separated from the h ...