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.
2012 Chevrolet Traverse LS, AWDFACTORY OEM SERVICE PROCEDURE
Section 8 (Lighting System)
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B0655
- DTC B096A
- DTC B1405, B1529, or B257B
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B1480
- DTC B2530
- DTC B2540
- DTC B2545
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B256A
- DTC B2575 or B2699
- DTC B257A
- DTC B257B
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B257C or B257D
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B2580
- DTC B2585 or B3867
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B258A
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B2600 or B2605
- DTC B260A
- DTC B260B or B260C
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B260D or B260E
- DTC B2615
- DTC B2625
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Actions Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B2645
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B2652
- DTC B2657
- DTC B2740
- DTC B3410 or B3420
- DTC B3415
- DTC B3588
- DTC B3596
- DTC B364A
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Action Taken When the DTC Sets
- Conditions for Setting the DTC
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B3650
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B3806
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B3881 or B3882
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3883
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3884
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3885 or B3886
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3887 or B3888 (With U4G)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3887 or B3888 (Without U4G)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3889
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B388A
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC B3890
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3891
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3948 or B3949
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B3950 or B3951
- DTC C0277 or C0890
- DTC C0297
- Symptoms - Lighting
- Adaptive Forward Lighting Malfunction
- Backup Lamps Malfunction
- Courtesy Lamps Malfunction
- Daytime Running Lamps Malfunction
- Front Fog Lamps Malfunction
- Rear Fog Lamps Malfunction
- Hazard Lamps Malfunction
- High Intensity Discharge Lamp Malfunction
- Headlamps Malfunction
- Headlamp Leveling Malfunction (RPO T84 or T85)
- Headlamp Leveling Malfunction (RPO TT6, TT7 or TT8)
- Interior Accent Lighting Malfunction
- Interior Backlighting Malfunction
- Park, License, and/or Tail Lamps Malfunction
- Stop Lamps Malfunction
- Trailer Lamps Malfunction (Without U4G)
- Trailer Lamps Malfunction (With U4G)
- Turn Signal Lamps and/or Indicators Malfunction
- Repair Instructions
- Brake Pedal Position Sensor Calibration
- Brake Pedal Position Sensor Replacement
- Sun Load Temperature and Daytime Running Lamp Ambient Light Sensor Replacement
- Headlamp Switch Replacement
- Trailer Lamp Control Module Replacement
- Reading Lamp Switch Push-button Replacement
- Dome and Reading Lamp Switch Replacement
- Dome Lamp Lens Replacement
- Instrument Panel Courtesy Lamp Replacement - Left Side
- Instrument Panel Courtesy Lamp Replacement - Right Side
- Front Floor Console Flood Lamp Replacement
- Rear Side Door Courtesy Lamp Replacement
- Front Side Door Courtesy Lamp Replacement
- Front Side Door Warning Lamp Replacement
- Rear Side Door Warning Lamp Replacement
- Instrument Panel Flood Lamp Replacement - Left Side
- Instrument Panel Flood Lamp Replacement - Right Side
- Front Seat Back Courtesy Lamp Replacement
- Instrument Panel Compartment Lamp Replacement
- Instrument Panel Compartment Lamp Bulb Replacement
- Roof Rail Courtesy and Reading Lamp Replacement
- Sunshade Illuminated Mirror Lamp Bulb Replacement
- Sunshade Illuminated Mirror Lamp Lens Replacement
- Dome Lamp Bulb Replacement
- Headlamp Replacement
- Headlamp Bulb Replacement - Left Side (T84, T85)
- Headlamp Bulb Replacement - Right Side (T84, T85)
- Headlamp Ballast Replacement (TT6, TT7, TT8)
- Headlamp Ignitor Replacement (TT6, TT7, TT8 Passenger Side)
- Headlamp Ignitor Replacement (TT6, TT7, TT8 Driver Side)
- Headlamp Capsule Replacement (TT6, TT7, TT8)
- Headlamp Aiming
- Headlamp Leveling Front Suspension Height Sensor Replacement
- Headlamp Leveling Rear Suspension Height Sensor Replacement
- Headlamp Control Module Replacement
- Front Fog Lamp Replacement
- Fog Lamp Aiming
- Daytime Running Lamp Bulb Replacement (TT6,TT7,TT8 Passenger Side Headlamp)
- Daytime Running Lamp Bulb Replacement (T84, T85 Passenger Side Headlamp)
- Daytime Running Lamp Bulb Replacement (T84, T85 Driver Side Headlamp)
- Daytime Running Lamp Bulb Replacement (TT6,TT7,TT8 Driver Side Headlamp)
- Front Side Turn Signal Lamp Replacement
- Front Side Turn Signal Lamp Bulb Replacement
- Front Turn Signal Lamp Bulb Replacement (T84, T85 Driver Side Headlamp)
- Front Turn Signal Lamp Bulb Replacement (T84, T85 Passenger Side Headlamp)
- Front Turn Signal Lamp Bulb Replacement (TT6,TT7,TT8 Passenger Side Headlamp)
- Front Turn Signal Lamp Bulb Replacement (TT6,TT7,TT8 Driver Side Headlamp)
- High Mount Stop Lamp Replacement
- Backup Lamp Bulb Replacement
- Tail Lamp Replacement
- Rear Turn Signal Lamp Bulb Replacement
- Rear Compartment Courtesy Lamp Replacement - Liftgate
- Rear Compartment Courtesy Lamp Replacement - Quarter Upper Trim
- Description and Operation
- Exterior Lighting Systems Description and Operation
- Exterior Lamps
- Low Beam Headlamps (Standard) RPO TT4
- High Intensity Discharge (HID) Low Beam Headlamps (up level) RPO TT6
- Adaptive Forward Lighting
- Automatic Lamp Control
- Flash to Pass (Standard) RPO TT4
- Flash to Pass (up level) RPO TT6
- Automatic Headlamp Leveling
- Daytime Running Lamps (DRL) without HID RPO TT4
- Daytime Running Lamps (DRL) with HID RPO TT6
- Front Fog Lamps
- Rear Fog Lamps
- Park, Tail, License and Marker Lamps
- Turn Signal Lamps
- Repeater Lamps
- Hazard Flasher Lamps
- Stop Lamps
- Backup Lamps
- Battery Run Down Protection/Inadvertent Power
- Interior Lighting Systems Description and Operation
- Exterior Lighting Systems Description and Operation
Factory Service Tools
Use the Manual With the Right Hardware
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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.