GM Service Manual Online
For 1990-2009 cars only

The battery carrier and hold-down clamp should be clean and free from corrosion before installing the battery.

Ensure that the carrier is in sound condition so that it will hold the battery securely and keep it level. Ensure that there are no parts in the carrier before installing the battery.

In order to prevent the battery from shaking in its carrier, the hold-down bolts should be tightened to the specifications.