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 MANUALSCHEVROLET2025TAHOE COMMERCIAL, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMETOWING SYSTEMSTRAILERING SYSTEMSREPAIR INSTRUCTIONSTRAILER LAMP CONTROL MODULE REPLACEMENTINSTALLATION PROCEDURE
2025 Chevrolet Tahoe Commercial, 4WD
Installation Procedure
2025 Chevrolet Tahoe Commercial, 4WDSECTION Installation Procedure
Trailer Lamp Control Module (2) - Install
- Trailer Lamp Control Module Bracket Nut (1) - Install and tighten [2x] - Fastener Specifications
Electrical Connector (1) @ Trailer Lamp Control Module - Connect
- Remove the support and lower the vehicle.
- Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (9C1 / 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
- Perform the necessary programming and setup procedure: Control Module References
CAUTION:
Refer to Fastener Caution .
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.