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.
Forward Range Radar Module Inspection (Chevrolet, GMC)
2018 Chevrolet Tahoe FL, 4WD, GasSECTION Forward Range Radar Module Inspection (Chevrolet, GMC)
- Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement (GMC)Front Bumper Fascia Replacement (Chevrolet) .
- CONTROL MODULE DTC CHECK - Using a scan tool, perform the Vehicle DTC Information function - Verify there are no current control module DTCs set. If any DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Inspect the forward range radar module (4) for vertical alignment. Refer to Forward Range Radar Module Alignment (Chevrolet, GMC) .
- Check the 3 ball sockets (5) for fixed seating. If the ball sockets are damaged replace the ball sockets.
- Inspect all studs (1) for proper seat. If damaged, replace the bracket. Refer to Forward Range Radar Module Replacement (Chevrolet, GMC) .
- Inspect the forward range radar module bracket (2) for paint cracks and deformations. Do NOT repair any cracks or misalignments. If damaged, replace the bracket. Refer to Forward Range Radar Module Replacement (Chevrolet, GMC) .
- Inspect the wiring harness plug (3) and the terminal of the forward range radar module for any damage.
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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.