GM Service Manual Online
For 1990-2009 cars only

The battery will not last indefinitely. With proper care, the battery will provide many years of service.

    • When the battery tests well, but fails to perform satisfactorily, check for the following conditions:
       - A vehicle accessory is left on overnight.
       - Long periods of slow driving, or short trips that do not allow sufficient time to recharge the battery.
       - The electrical load on the vehicle is greater than the generator output. This can happen when aftermarket equipment is added.
    • Check the charging system for the following conditions:
       - Poor ground connections
       - Electrical shorts
       - A slipping accessory drive belt
       - A faulty generator
    • Check for the following that results from a poorly maintained battery:
       - Corrosion on the battery terminals
       - Loose battery cable clamps
       - Operating the vehicle with a loose battery hold down
    • Check the exterior for damage to the battery case.