Removal Procedure
Courtesy of GENERAL MOTORS CORP.
- Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
- Record the preset radio stations.
- Turn the ignition OFF.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection
.
- Disconnect the engine control module (ECM) harness connectors.
Courtesy of GENERAL MOTORS CORP.
- Release the retaining tab located in the battery box lower half using a small screwdriver or other suitable tool.
- Remove the ECM by lifting upward after releasing the tab.