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 MANUALSGMC2011SAVANA SPECIAL 4.8 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 3 (LIGHTING SYSTEM)
2011 GMC Savana Special 4.8 A
Section 3 (Lighting System)
2011 GMC Savana Special 4.8 ASECTION Section 3 (Lighting System)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 GMC Savana Special, 2010 GMC Savana Camper Special, 2010 GMC Savana, 2010 Chevrolet RV Cutaway, and 2010 Chevrolet Cutaway. 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 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 Procedures
- DTC B1480
- DTC B2545
- DTC B2555
- DTC B2575
- 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 Procedures
- DTC B2580
- 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 Procedures
- DTC B2600
- DTC B2610
- DTC B2615 (with out YF7)
- DTC B2615 (with YF7)
- DTC B2625
- 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 B3445
- DTC B3600
- DTC B3884
- DTC C0277, C0297, or C0890
- 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
- Repair Instructions
- Stop Lamp Switch Replacement
- Headlamp Switch Replacement
- Rear Fog Lamp Switch Replacement
- Daytime Running Lamp (DRL) Ambient Light Sensor Replacement
- Sunshade Illuminated Mirror Lamp Bulb Replacement
- Dome Lamp Replacement
- Dome Lamp Bulb Replacement
- Underhood Lamp Replacement
- Sealed Beam Headlamp Replacement
- Headlamp Replacement (V22)
- Headlamp Bulb Replacement
- Headlamp Capsule Replacement (Minus V22)
- Headlamp Aiming
- Rear Fog Lamp Replacement
- Rear Fog Lamp Bulb Replacement
- Front Position Lamp Replacement
- Repeater Lamp Replacement
- Front Side Marker Lamp Replacement (T90)
- Front Side Marker Lamp Replacement (X88/Z88)
- Parking and Turn Signal Lamp Replacement
- High Mount Stop Lamp Replacement
- Cargo Lamp Replacement
- Backup Lamp Replacement
- Backup Lamp Bulb Replacement
- Rear License Plate Lamp Replacement
- Tail Lamp 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
- 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.