Filling Procedure
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- Install the drain plug (2) and gasket to the differential.
Tighten: Tighten the differential drain plug to 32 N.m (23 lb ft).
- Clean any dirt from around the differential fill plug (1).
- Remove the fill plug from the differential.
- Fill the differential with synthetic gear oil GM P/N United States 12378514 Canada P/N 88901045. Refer to Capacities - Approximate Fluid in Maintenance and Lubrication.
- Inspect the gear oil level to ensure it is even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening.
- Install the fill plug (1) and gasket to the differential.
Tighten: Tighten the fill plug to 32 N.m (23 lb ft).
- Lower the vehicle.
- Operate the vehicle in tight right and left circles in order to engage the all-wheel-drive system.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Remove the fill plug from the differential.
- Inspect the gear oil level to ensure it is even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening.
- Install the fill plug and gasket to the differential.
Tighten: Tighten the fill plug to 32 N.m (23 lb ft).
- Lower the vehicle.
NOTE:
Refer to FASTENER NOTICE
in Cautions and Notices.
IMPORTANT:
The vehicle must be driven in tight left and right circles after filling the differential in order to distribute the gear lubricant throughout the differential.