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 MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 98 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM & NAVIGATION SYSTEM)
2008 Chevrolet HHR LT, 2.4 P, Automatic
Section 98 (Cellular System, Entertainment System & Navigation System)
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Section 98 (Cellular System, Entertainment System & Navigation System)
WARNING: This page is about a different car, the 2009 Chevrolet HHR. 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 B1025, B1035, B1045, or B1055
- DTC B1259
- 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 Procedures
- DTC B1287
- DTC B2455
- DTC B2462
- DTC B2470
- DTC B2476 or B2482
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Digital Radio Malfunction
- OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
- iPod Audio Distorted or Inoperative - One or More Speakers
- OnStar Microphone Inoperative - Caller Cannot Be Heard
- No (or Noisy) OnStar Audio
- OnStar Button LED Inoperative
- OnStar Call Center Remote Function Requests Inoperative
- OnStar One or More Buttons Inoperative
- OnStar Steering Wheel Control Functions Inoperative
- Radio Does Not Interface with iPod
- Radio Poor Reception
- Speaker Replacement Reference
- Speaker Malfunction
- Unable to Contact OnStar Call Center
- OnStar Voice Recognition Inoperative
- Repair Instructions
- Mobile Telephone Microphone Replacement (with Sunroof)
- Mobile Telephone Microphone Replacement (without Sunroof)
- Communication Interface Module Replacement
- Communication Interface Module Battery Replacement
- Wireless Communication Interface Antenna 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
- Radio Antenna Replacement
- Digital Radio Antenna Replacement
- Digital Radio Antenna Cable Replacement
- Antenna Cable Replacement
- Mobile Telephone and Navigation Antenna Coaxial Cable Replacement
- Front Upper Speaker Replacement
- Radio Front Side Door Speaker Replacement
- Radio Rear Side Door Speaker Replacement
- Radio Rear Quarter Trim Panel Speaker Replacement
- Description and Operation
- OnStar Description and Operation
- Notes
- Communication Interface Module (CIM)
- OnStar® Button Assembly
- OnStar® Microphone
- Cellular and GPS Antennas
- Bluetooth ® (If Equipped)
- Bluetooth ® Features Supported
- Pairing a Bluetooth ® Cellular Phone to the vehicle
- Back-up Battery (BUB) (If Equipped)
- Audio System Interface
- OnStar® Steering Wheel Controls
- OnStar® Sleep Cycle
- Features
- Deactivated OnStar® Accounts
- OnStar® Cellular, GPS, and Diagnostic Limitations
- Mobile Identification Number and Mobile Directory Number
- Operation of the OnStar® Speech Recognition Systems
- Radio/Audio System Description and Operation
- Notes
- Radio Circuit Operation
- Antenna System
- AM/FM Reception
- Digital Radio Receiver (If Equipped)
- Speaker Operation
- Audio Amplifier (If Equipped)
- Radio Data System (RDS) (If Equipped)
- RDS Messages
- MP3/CD Formatting Information for MP3/CD Radios
- Integral Multi Disc CD Changer (IMDX) (If Equipped)
- Theft Deterrent
- Radio Error Messages
- OnStar ® (If Equipped)
- Steering Wheel Controls (If Equipped)
- Using the Auxiliary Input Jack (If Equipped)
- USB Port (if equipped)
- Personal Audio Link (PAL)
- Speed Compensated Volume (If Equipped)
- OnStar 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.