Transfer Case Fluid Replacement TrailBlazer, Envoy, Rainier, Bravada

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the fuel tank shield, if equipped. Refer to Fuel Tank Shield Replacement .



3. Remove the fill plug.



4. Remove the drain plug.

1. Apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the drain plug threads.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the drain plug.

Tighten
Tighten the plug to 27 N·m (20 lb ft).

3. Fill the transfer case with the proper fluid. Refer to Approximate Fluid Capacities .



4. Apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the fill plug threads.
5. Install the fill plug.

Tighten
Tighten the plug to 27 N·m (20 lb ft).

6. Install the fuel tank shield, if equipped. Refer to Fuel Tank Shield Replacement .
7. Lower the vehicle. Refer to Lifting and Jacking the Vehicle .

Transfer Case Fluid Replacement Trailblazer EXT, Envoy XL

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .



3. Remove the fill plug.



4. Remove the drain plug.

1. Apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the drain plug threads.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the drain plug.

Tighten
Tighten the plug to 27 N·m (20 lb ft).

3. Fill the transfer case with the proper fluid. Refer to Approximate Fluid Capacities .



4. Apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the fill plug threads.
5. Install the fill plug.

Tighten
Tighten the plug to 27 N·m (20 lb ft).

6. Install the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .
7. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.