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 MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 39 (LIGHTING SYSTEM)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
Section 39 (Lighting System)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Section 39 (Lighting System)
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- DTC B1395
- 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 Instructions
- DTC B1480
- DTC B2545
- 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
- Repair Instructions
- DTC B2555
- DTC B2575
- 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
- Repair Instructions
- DTC B257A
- 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 Test
- Repair Instructions
- DTC B2580
- 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
- Repair Instructions
- DTC B2585
- 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 Instructions
- DTC B2600
- DTC B2610
- 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
- Repair Instructions
- DTC B2615 (with YF7)
- 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
- Repair Instructions
- DTC B2615 (Without YF7)
- 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
- Repair Instructions
- DTC B2625
- 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
- Repair Instructions
- 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 Instructions
- DTC B2652
- DTC B3445
- DTC B3600
- 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
- Repair Instructions
- DTC B3884
- 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
- Repair Instructions
- DTC C0277 or C0890
- Diagnostic Instructions
- DTC Descriptors
- 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 Instructions
- DTC C0297
- Symptoms - Lighting
- Backup Lamps Malfunction
- Courtesy Lamps Malfunction
- Daytime Running Lamps Malfunction
- Hazard Lamps Malfunction
- Headlamps Malfunction
- Interior Backlighting Malfunction
- Park, License, and/or Tail Lamps Malfunction
- Stop Lamps Malfunction
- Turn Signal Lamps and/or Indicators Malfunction
- DTC B1395
- Repair Instructions
- Notes
- Wire to Wire Repair - Lighting
- Connector Reconnection - Lighting
- Brake Pedal Position Sensor Calibration
- Brake Pedal Position Sensor Replacement
- Headlamp Switch Replacement
- Headlamp Automatic Control Ambient Light Sensor Replacement
- Dome and Reading Lamp Replacement - Front
- Dome and Reading Lamp Bulb Replacement
- Center Reading and Courtesy Lamp Replacement
- Sunshade Illuminated Mirror Lamp Bulb Replacement
- Underhood Lamp Replacement
- Headlamp Replacement
- High Beam Headlamp Bulb Replacement
- Low Beam Headlamp Bulb Replacement
- Headlamp Aiming
- Parking and Turn Signal Lamp Replacement
- High Mount Stop Lamp Replacement
- High Mount Stop Lamp Bulb Replacement
- Cargo Center Courtesy Lamp Replacement
- Backup Bulb Replacement
- Rear License Plate Lamp Replacement
- Tail Lamp Replacement
- Stop and Tail Lamp Bulb Replacement
- Description and Operation
- Exterior Lighting Systems Description and Operation
- Exterior Lamps
- Low Beam Headlamp Operation
- High Beam Headlamp Operation
- Flash to Pass (FTP)
- Daytime Running Lamps (DRL) and Automatic Lamp Control (ALC)
- HDLPS Suggested Indicator
- Lights ON Warning
- Park, Tail, Marker and License Lamps
- Turn Signal Lamps
- Hazard Lamps
- Stop Lamps (cargo/passenger)
- Stop Lamps (cutaway)
- Backup Lamps
- Rear Fog Lamps
- Battery Rundown Protection/Inadvertent Power
- Interior Lighting Systems Description and Operation
- Exterior Lighting Systems Description and Operation
- Special Tools and Equipment
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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.