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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 181 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Section 181 (Cellular System, Entertainment System, And Navigation System)
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Section 181 (Cellular System, Entertainment System, And Navigation System)
WARNING: This page is about a different car, the 2008 Cadillac STS. 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
- Diagnostic Starting Point - Cellular, Entertainment, and Navigation
- DTC B0000
- DTC B1024
- DTC B1259
- 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 Procedures
- DTC B1283-B1286
- DTC B2455
- DTC B2462
- DTC B2470
- DTC B2474
- DTC B2476 (old)
- DTC B2482
- DTC B2483 or B2484
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Symptoms - Navigation Systems
- Audio System Troubleshooting Hints
- Digital Radio Malfunction
- Digital Radio Receiver Setup
- OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
- OnStar Microphone Inoperative - Caller Cannot Be Heard
- Navigation System - Poor or Inoperative TV Reception
- Navigation System - Voice Recognition Inoperative
- No (or Noisy) OnStar Audio
- No Global Positioning System (GPS) Reception
- Noise Compensated Volume Inoperative
- OnStar Button LED Inoperative
- OnStar Call Center Remote Function Requests Inoperative
- OnStar One or More Buttons Inoperative
- OnStar Reconfiguration (without TIS2web Gen 3 and prior)
- OnStar Reconfiguration (with TIS 2 Web Gen 4 and later)
- OnStar Symptom Diagnosis
- Radio Poor Reception
- Radio Setup
- Speaker Replacement Reference
- Speaker Malfunction
- Unable to Contact OnStar Call Center
- OnStar Voice Recognition Inoperative
- Repair Instructions
- Communication Interface Module Replacement
- Compact Disc Care and Cleaning
- Radio Replacement
- Digital Radio Receiver Replacement
- Radio Volume Compensator Interior Noise Microphone Replacement
- Radio Speaker Amplifier Replacement
- Mobile Telephone Digital Antenna Replacement
- Cellular Communications/Digital Radio Antenna Replacement
- Television Antenna Amplifier Replacement
- Radio Antenna Module Replacement
- Television Antenna Module Replacement
- Global Positioning System (GPS) Antenna Replacement
- Navigation Antenna Coaxial Cable Replacement
- Video Display Replacement
- Auxiliary Audio/Video Input Control Replacement
- Front Seat Speaker Replacement
- Front Upper Speaker Replacement
- Radio Front Side Door Lower Speaker Replacement
- Radio Front Floor Console Speaker Replacement
- Radio Rear Speaker Replacement (Center)
- Radio Rear Speaker Replacement (Right)
- Radio Rear Speaker Replacement (Left)
- Radio Rear Side Door Speaker Replacement
- Description and Operation
- Navigation System Description and Operation
- Notes
- Navigation System Components
- Navigation Radio
- Global Positioning System (GPS) Antenna
- TV and VICS Antenna - Export, w/YQ6, YQ7
- TV Antenna Module - Export, w/YQ6, YQ7
- TV Antenna Amplifiers - Export, w/YQ6, YQ7
- Auxiliary RCA Video Jacks
- VICS Module - Export, w/YQ7
- VICS Optical/Microwave Beacon Antenna - Export, w/YQ7
- Voice Recognition
- Bluetooth
- OnStar Description and Operation
- Notes
- Vehicle Communication Interface Module (VCIM)
- OnStar® Button Assembly
- OnStar® Microphone
- Cellular and Navigation Antennas
- OnStar® Sleep Cycle
- Deactivated OnStar® Accounts
- OnStar® Reconfiguration Procedure
- OnStar® Cellular, GPS, and Diagnostic Limitations
- OnStar® Personal Calling
- Operation of the Hands Free Cellular Phone
- OnStar® Steering Wheel Controls
- OPC Features
- Voice Feedback
- OPC Security/System Lock
- Nametags
- Mobile Identification Number and Mobile Directory Number
- Placing a Call
- Operation of the OnStar® Speech Recognition Systems
- Radio/Audio System Description and Operation
- Notes
- Radio Reception
- Diversity Antenna System
- Audio Amplifier
- Theftlock
- Radio Personalization w/ Home and Away Feature (If equipped)
- Radio Data System (RDS)
- RDS Basic Information
- Displaying Program Information
- Finding an RDS Station
- Using the RDS Traffic Feature
- Viewing Messages
- RDS Clock Time
- Steering Wheel Controls
- XM Satellite Radio
- Digital Radio Receiver
- Selecting a PTY
- Navigation System Description and Operation
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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.