Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Buick EnvisionFACTORY OEM SERVICE PROCEDURE
Diagnostic Aids
- If replacing the Rear Differential Clutch Control Module, the module needs to be configured with a rear differential clutch service calibration value. The clutch calibration service value is an alphanumeric value that is stored in the RDCM memory and stamped on the rear differential clutch pack housing. The value must be programmed into the new Rear Differential Clutch Control Module using SPS.
- If replacing the rear differential clutch assembly and keeping the old RDCM, the RDCM will only need to be configured with the number stamped on the housing using a scan tool.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.