All-Wheel Drive
It is not necessary to check the all-wheel drive lubricant levels.
A fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to the dealer as soon as possible.
See also:
Removing the Flat Tire and Installing the Spare Tire
1. Do a safety check before proceeding. See If a Tire Goes Flat on page 10‑58 for more information.
2. If the vehicle has a wheel cover, loosen the plastic nut caps with the wheel wrench. They ...
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 vehic ...
Malfunction Indicator Lamp
A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, to produce a cleaner environment. This ligh ...





