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 ...

Keyless Access Operation
Some vehicles have a keyless access system that lets you lock and unlock the doors and access the trunk without removing the RKE transmitter from your pocket, purse, briefcase, etc. The RKE ...

Every Engine Oil Change
► Change engine oil and filter. Reset oil life system. See Engine Oil  and Engine Oil Life System . An Emission Control Service. ► Engine coolant level check. See Engine Coolant . ...