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 DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM
2008 Pontiac Grand Prix Base
Cellular System, Entertainment System, And Navigation System
2008 Pontiac Grand Prix BaseSECTION Cellular System, Entertainment System, And Navigation System
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B0001
- 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
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC B1259
- DTC B1780
- DTC B2455
- DTC B2462
- DTC B2470
- DTC B2476
- DTC B2482
- DTC B2483 or B2484
- DTC U1500
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Audio System Troubleshooting Hints
- Audio Distortion - One or More Speakers
- Audio Too Loud at Low Settings
- Digital Radio Poor or No Reception
- Digital Radio Receiver Setup
- OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
- OnStar Microphone Inoperative - Caller Cannot Be Heard
- 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 TIS2web Gen 4 and later)
- OnStar Steering Wheel Control Functions Inoperative
- OnStar Symptom Diagnosis
- Radio Setup
- Reduced Volume - One or More Speakers
- Speaker Replacement Reference
- Speakers Inoperative - All
- Speakers Inoperative - One or More
- Tape Player Weak, Slow, or Garbled Output
- Unable to Contact OnStar Call Center
- OnStar Voice Recognition Inoperative
- Repair Instructions
- Mobile Telephone Microphone Replacement
- Communication Interface Module Replacement
- Compact Disc Care and Cleaning
- Radio Replacement
- Digital Radio Receiver Replacement
- Radio Speaker Amplifier Replacement
- Mobile Telephone Digital Antenna Replacement
- Cellular Communications/Digital Radio Antenna Replacement
- Vehicle Location Antenna Module Bracket Replacement
- Radio Antenna Module Replacement
- Digital Radio Antenna Replacement
- Global Positioning System (GPS) Antenna Replacement
- Digital Radio Antenna Cable Replacement
- Mobile Telephone Antenna Coaxial Cable Replacement
- Antenna Cable Replacement
- Radio Antenna Cable Extension Cable Replacement
- Navigation Antenna Coaxial Cable Replacement (Body Cable)
- Navigation Antenna Coaxial Cable Replacement (Instrument Panel Extension Cable)
- Radio Front Speaker Grille Replacement
- Radio Front Side Door Speaker Grille Replacement
- Radio Rear Speaker Grille Replacement
- Radio Front Speaker Replacement
- Radio Front Side Door Upper Speaker Replacement
- Radio Front Side Door Speaker Replacement
- Radio Rear Speaker Replacement
- Description and Operation
- Navigation System Description and Operation
- 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
- AM/FM Reception
- Antenna
- Audio Amplifier
- Theft Deterrent
- Integral CD Changer (ICDX)
- Radio Data System (RDS)
- Notes
- RDS Basic Information
- Displaying RDS Information
- Viewing and Selecting RDS Information for Display
- Using RDS Program Types to Tune Radio
- Finding a RDS Station By Specific Program Type
- Using the INFO Feature
- Controlling the Radio
- Using the RDS Traffic Feature
- Traffic Interrupt Feature
- RDS Program Type Interrupts
- Alternate Frequency (AF) Switching
- RDS Clock Time
- XM Satellite Radio
- Steering Wheel Controls
- Tape/CD Player Error Messages
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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.