Installation Procedure

Connect the electrical connectors in the sequence shown.
CAUTION:
The battery energy control modules internal cell balancing circuitry is powered by the cell group voltage sense circuits. In order to prevent an unrecoverable, unbalanced Hybrid/EV battery section or internal control module damage, always take the following actions:
1. Disconnect ALL of the battery energy control module connectors prior to disconnecting any Hybrid/EV battery section connector.
2. Reconnect all the Hybrid/EV battery section connectors prior to reconnecting the battery energy control module connectors.
3. Disconnect and reconnect the battery energy control module connectors ONLY in the sequence provided in Repair Instructions.
Fig 1: Battery Energy Control Module And Electrical Connectors
Courtesy of GENERAL MOTORS COMPANY
Engage the retaining tabs. (1)

Fig 2: Retaining Tabs
Courtesy of GENERAL MOTORS COMPANY
High Voltage Top Cover (4)» Install - High Voltage Battery Cover Replacement (Top Cover) High Voltage Battery Cover Replacement (Front Cover) High Voltage Battery Cover Replacement (Left Side) High Voltage Battery Cover Replacement (Right Side)

Fig 3: High Voltage Battery Cover Nuts And Bolts
Courtesy of GENERAL MOTORS COMPANY
High Voltage Battery (1)» Install - High Voltage Battery Replacement and Shipping Preparation

Fig 4: High Voltage Battery
Courtesy of GENERAL MOTORS COMPANY
Enable the high voltage system. Refer to High Voltage Enabling
Reprogram the battery energy control module, refer to Control Module References