Rear Driveline Module (RDM) Fluid Level Check

WARNING: This page is about a different car, the 2025 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The rear differential oil change is not a scheduled maintenance service.

NOTE: The Rear Driveline Module (RDM) oil must not be drained during normal level checks.

NOTE: Be sure the vehicle is on a level surface, or is hoisted in a level manner, in order to obtain the correct fill level.

NOTE: If this procedure is not carried out as described exactly, including waiting times, the oil level may vary by more than 3 mm (.118 in.).

With the vehicle in SNOW mode, drive at 30 km/h (19 mph) for 5 minutes.
Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
Remove the Rear Driveline Module (RDM) oil fill plug.

Courtesy of CHRYSLER GROUP, LLC

1 - Oil Fill Plug
Insert a suitable hex wrench in the filler hole to submerge the short arm of the wrench in the oil holding the long branch perfectly horizontal.

Courtesy of CHRYSLER GROUP, LLC

1 - Hex Wrench/Oil Fill Hole
Very carefully remove the hex wrench from the hole.
With a digital caliper, check that the position shown in the illustration is comprised between 13-15 mm (.51-.59 in.).

Courtesy of CHRYSLER GROUP, LLC
If necessary, add the specified fluid. Refer to CAPACITIES AND RECOMMENDED FLUIDS, SPECIFICATIONS .
Clean the RDM fill plug and install a NEW gasket. Install the fill plug and tighten to the proper torque specifications. Refer to TORQUE SPECIFICATIONS .