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.
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HOMESERVICE MANUALSCHEVROLET2025TRAILBLAZER ACTIV, 4WDREPAIR AND DIAGNOSISGENERAL INFORMATIONRESET PROCEDURESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK47 REAR DIFFERENTIAL CLUTCH CONTROL MODULE: PROGRAMMING AND SETUPDIAGNOSTIC AIDS
2025 Chevrolet Trailblazer ACTIV, 4WD
Diagnostic Aids
2025 Chevrolet Trailblazer ACTIV, 4WDSECTION Diagnostic Aids
- If replacing the Rear Differential Clutch Control Module, but not the assembly, the module needs to be configured with the rear differential clutch service calibration values. The rear differential clutch calibration values will need to be retrieved from the old Rear Differential Clutch Control Module during Prepare the Control Module for Removal process and programmed into the new Rear Differential Clutch Control Module using SPS.
- If replacing only the Rear Differential Clutch Control Module, before removal record the Module ID Information screen values then run Prepare the Control Module for Removal.
- If renewing the complete Rear Differential, before installation record the left and right clutch ID values.
- 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.
- If original Rear Differential Clutch Control Module is not communicating, skip the Prepare the Control Module for Removal step.
NOTE:
Number will be located on the top of the differential carrier assembly above the axle.
RENDER: 1.0x
NO RELATED
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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.