GM Service Manual Online
For 1990-2009 cars only

In order to prevent parasitic load, disconnect the following components.

  1. The negative battery cable
  2. The radio fuse

Recharge the battery every 20-45 days until the hydrometer green dot is visible if the negative cable cannot be disconnected. Refer to Battery Charging.

Reset the following components once the vehicle is returned to service:

  1. The radio presets
  2. The HVAC controls (if automatic)
  3. The driver information center (if equipped)
  4. The clock