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.
2018 Chevrolet Traverse LS, 4WDFACTORY OEM SERVICE PROCEDURE
Lighting System - Diagnostic Information And Procedures
- Diagnostic Information and Procedures
- DTC B1395
- DTC B1480
- DTC B2530
- DTC B2540
- DTC B2545
- DTC B255F
- DTC B256A
- DTC B2575 or B2699
- DTC B257A
- DTC B2580
- DTC B2585 or B3867
- DTC B2610
- DTC B2615
- DTC B2625
- DTC B2645
- DTC B2740
- DTC B323E
- DTC B3588
- DTC B3596
- DTC B3600
- DTC B3650
- DTC B3806
- DTC B380A or B380B
- DTC B3881 or B3882
- DTC B3883
- DTC B3884
- DTC B3948 or B3949
- DTC B3950 or B3951
- DTC C0277 or C0890
- DTC C0297
- Symptoms - Lighting
- Backup Lamps Malfunction
- Courtesy Lamps Malfunction
- Daytime Running Lamps Malfunction
- Dome Lamps Malfunction
- Exterior Courtesy Lamps Malfunction
- Front Fog Lamps Malfunction
- Rear Fog Lamps Malfunction
- Hazard Lamps Malfunction
- Headlamps Malfunction
- Interior Accent Lighting Malfunction
- Interior Backlighting Malfunction
- Park, License, and/or Tail Lamps Malfunction
- Rear Compartment Lamp Malfunction
- Stop Lamps Malfunction
- Trailer Lamps Malfunction
- Turn Signal Lamps and/or Indicators Malfunction
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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