Drive Motor Generator Battery Replacement. Cadillac Escalade EXT 2008

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2008 🢒 Escalade EXT 🢒 Hybrid 🢒 Hybrid Energy Storage 🢒 Drive Motor Generator Battery Replacement

Callout

Component Name

Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

The High Voltage Disabling procedure will perform the following tasks:

•	Identify how to disable high voltage.

•	Identify how to test for the presence of high voltage.

•	Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

Failure to follow the procedures exactly as written may result in serious injury or death.

Preliminary Procedures:

Disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling.

Drive Motor Battery Positive, Negative, and Ground Shield Cable Terminal Fastener Nut (Qty: 3)

Notice: Refer to Fastener Notice in the Preface section.

Tighten
9 N·m (80 lb in)

Drive Motor Battery 300 Volt Positive and Negative Cable

Caution: High Voltage (HV) cables are not repairable. After disconnecting HV cables, protect and insulate ring terminal ends immediately with the EL-48569 terminal covers and UL® Listed, or equivalent, insulation tape rated at a minimum of 600 volts. Damage caused to unprotected terminal ends will result in cable replacement.

Special Tools

EL-48569 Terminal Covers

Battery Vent Tube

Tip
Remove the vent tube from the vehicle.

Drive Motor Generator Battery Retainer Nut (Qty: 2)

Tighten
50 N·m (37 lb ft)

Cooling Duct Retainer

Cooling Duct

Drive Motor Generator Battery Ground Nut

Tighten
25 N·m (18 lb ft)

Drive Motor Generator Battery Mounting Nut

Tighten
25 N·m (18 lb ft)

Drive Motor Generator Battery Ground Bolt

Tighten
25 N·m (18 lb ft)

Drive Motor Battery Cable Terminal Extension Cover

Procedure

Disconnect the X350 harness connector from the drive motor generator battery.

Drive Motor Battery Cable Terminal Extension Cover Bolt (Qty: 4)

Tighten
6 N·m (53 lb in)

Lifting Point - Right Side

Lifting Points - Left Side

Drive Motor Battery Assembly

Danger: The high voltage (HV) battery must be protected when outside of the vehicle.

Storage Guidelines

•	Store the HV battery flat, do not exceed 45 degrees when handling.

•	Store the HV battery in an environmentally protected area.

•	Maintain the HV battery at room temperature.

•	Protect the HV battery from exposure to liquids.

•	Protect the HV battery from physical damage.

Unqualified Access Guidelines

Cover all exposed high voltage openings with UL® listed, or equivalent, insulation tape rated at a minimum of 600 volts.
Store the HV battery in a limited-access area.

Failure to follow these guidelines may result in serious injury or death.

Procedure:

After the battery assembly has been replaced and the re-assembly of the drive motor generator battery, enable the HV system. Refer to High Voltage Enabling.

Tip
Some portable lifting devices may require raising the vehicle or the removal of the rear tire to permit access of boom into the vehicle.

Special Tools

EL-48265 Battery Lifting Fixture