CTS Sedan AWD V6-3.0L (2010)
Fluid - Differential: Procedures
Front Drive Axle
Front Axle Lubricant Level Inspection
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Vehicle Lifting/Service and Repair).
2. Clean any dirt from around the differential fill plug.
3. Remove the fill plug from the differential and drain the fluid.
4. Check the differential fluid level, it should be even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening.
5. Add new fluid if necessary.
6. Fill the differential with 75W90 synthetic axle lubricant , GM P/N 12378261 (Canadian P/N 10953455) or equivalent. Refer to Approximate Fluid
Capacities (See: Specifications).
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
7. Install the differential fill plug to the differential and tighten to 39 Nm (29 lb ft).
8. Lower the vehicle.
Rear Drive Axle
Rear Axle Lubricant Level Inspection
Inspection Procedure