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 MANUALSGMC2024SIERRA 2500 HD DENALI ULTIMATEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEDRIVER ASSISTANCE SYSTEMS - DIAGNOSTIC INFORMATION AND PROCEDURES
2024 GMC Sierra 2500 HD Denali Ultimate
Driver Assistance Systems - Diagnostic Information And Procedures
2024 GMC Sierra 2500 HD Denali UltimateSECTION Driver Assistance Systems - Diagnostic Information And Procedures
- Diagnostic Information and Procedures
- Driver Assistance Systems Disable History Conditions
- Driver Assistance Systems Component Replacement Reference
- DTC B094D or B094E
- 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 Instructions
- DTC B0987
- 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 Instructions
- DTC B1015
- DTC B1270 or B1271
- 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 B1388 or B1389
- DTC B13AC
- DTC B13AD
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Scan Tool Data
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B172E or B172F
- 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
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B1A01
- DTC B1A04 (K124 Image Processing Module)
- DTC B1A04 (K160 Brake System Control Module)
- DTC B356A
- 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 Instructions
- DTC B395D
- DTC P15F6
- DTC U3000 (B218L Side Obstacle Detection Control Module - Left or B218R Side Obstacle Detection Control Module - Right)
- DTC U3000 (B174W Frontview Camera - Windshield)
- DTC U3000 (B233B Forward Range Radar Sensor - Long Range)
- DTC U3000 (B233 Short Range Radar Sensor)
- Symptoms - Driver Assistance Systems
- Seat Haptic Signal Motor Malfunction
- Forward Collision Alert System Malfunction
- Side Blind Zone Alert System Malfunction
- Lane Departure Warning System Malfunction
- Lane Keep Assist System Malfunction
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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.