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 MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 259 (CELLULAR, ENTERTAINMENT, AND NAVIGATION)
2008 Pontiac Grand Prix Base
Section 259 (Cellular, Entertainment, And Navigation)
2008 Pontiac Grand Prix BaseSECTION Section 259 (Cellular, Entertainment, And Navigation)
WARNING: This page is about a different car, the 2008 Hummer H2. 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 B0004
- DTC B1001
- DTC B1025, B1035, B1045, or B1055
- 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 B1259
- DTC B1271
- DTC B2460
- DTC B2462
- DTC B2470
- DTC B2476 or B2482
- DTC B2483 or B2484
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Symptoms - Navigation Systems
- Audio System Troubleshooting Hints
- Video Entertainment System Troubleshooting Hints
- Audio Amplifier Setup
- 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 - Vehicle Position Indicator Inoperative or Erratic
- No (or Noisy) OnStar Audio
- No Global Positioning System (GPS) Reception
- OnStar Button LED Inoperative
- OnStar Call Center Remote Function Requests Inoperative
- OnStar One or More Buttons Inoperative
- OnStar Reconfiguration (with TIS 2 Web Gen 4 and later)
- OnStar Steering Wheel Control Functions Inoperative
- OnStar Symptom Diagnosis
- Radio Audio Inoperative at Rear Seat Audio (RSA) Control
- Radio Displays CAL or CAL ERR
- Radio Displays LOC, LOCKED, or CODE
- Radio Poor Reception
- Radio Setup
- Speaker Replacement Reference
- Speaker Malfunction
- Speed Compensated Volume
- Unable to Contact OnStar Call Center
- Video Audio Inoperative
- Video Display is Poor or Blank
- Video Entertainment System Inoperative
- Video Entertainment System Remote Control Inoperative
- Video Entertainment System Wireless Headphone Inoperative
- OnStar Voice Recognition Inoperative
- Repair Instructions
- OnStar Button Assembly Replacement
- Mobile Telephone Microphone Replacement
- 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 (UQA)
- Radio Speaker Amplifier Replacement (UQS)
- Mobile Telephone Digital Antenna Replacement
- Cellular Communications/Digital Radio Antenna Replacement
- Cellular and Navigation Antenna Assembly Replacement
- Radio Antenna Replacement
- Global Positioning System (GPS) Antenna Replacement
- Digital Radio Antenna Cable Replacement
- Video Display Replacement
- Rear Seat Audio Control Replacement
- Audio/Video Disc Player Adapter Replacement
- Radio Front Speaker Replacement
- Front Upper Speaker Replacement
- Radio Front Side Door Speaker Replacement
- Radio Front Floor Console Speaker Replacement
- Radio Rear Side Door Speaker Replacement
- Radio Rear Quarter Trim Panel Speaker Replacement
- Description and Operation
- Navigation System Description and Operation
- OnStar Description and Operation
- Notes
- New Features
- 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
- 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.