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, FWDREPAIR AND DIAGNOSISGENERAL INFORMATIONRESET PROCEDURESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK171 HANDS-FREE LIFTGATE SENSOR CONTROL MODULE: PROGRAMMING AND SETUP (WITHOUT 09F)REPLACE AND PROGRAM THE CONTROL MODULE
2025 Chevrolet Trailblazer ACTIV, FWD
Replace and Program The Control Module
2025 Chevrolet Trailblazer ACTIV, FWDSECTION Replace and Program The Control Module
To program a replacement K171 Hands-Free Liftgate Sensor Control Module, perform the following procedure:
- Connect the scan tool to the vehicle.
- Select Module Diagnosis:
- Select K39 Liftgate Control Module:
- Select Configuration/Reset Functions:
- Select Remove/Reset Module:
- Select K171 Hands-Free Liftgate Sensor Control Module Calibration:
- Press "Enter" and follow the on screen instructions:
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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.