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.
2012 Chevrolet Traverse LS, AWDFACTORY OEM SERVICE PROCEDURE
Section 146 (Cellular System, Entertainment System, And Navigation System)
WARNING: This page is about a different car, the 2013 GMC Acadia, 2013 Chevrolet Traverse, and 2013 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Radio/Navigation System Schematics
- Power, Ground, Serial Data, Antennas, Lighting, And Vehicle Speed Signal
- Audio Amplifier Power, Ground, and Front And Rear Audio Inputs (UQA Or UQS)
- Audio Amplifier Power, Ground And Front And Rear Audio Inputs (UQA Or UQS With ULD)
- Audio Amplifier Center And Subwoofer Audio Inputs (UQS)
- Speakers (UQF)
- Speakers (UQF With ULD)
- Speakers - Door And A-Pillar (UQA Or UQS)
- Speakers - Except Door And A-Pillar (UQA Or UQS)
- Rear Audio Controls, Lighting, Data Communication And Infrared Module
- Digital Radio (U2K Or UBS)
- Secondary Controls
- OnStar Schematics
- Video System Schematics
- Radio/Navigation System Schematics
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B0000
- DTC B1025, B1035, B1045, or B1055
- DTC B1259
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- 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 B1287
- 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 B1288
- DTC B1289
- DTC B1449
- DTC B2455
- DTC B2462 (Communication Interface Module)
- DTC B2462 (Navigation Radio)
- DTC B2470
- DTC B2474
- DTC B2476 or B2482
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Symptoms - Navigation Systems
- Application Malfunction
- Audio/Video Player Adapter - Audio or Video Malfunction
- Auxiliary Audio Input Malfunction
- Bluetooth Malfunction
- Digital Radio Malfunction
- Dual DVD Rear Seat Entertainment Headrest Display Malfunction
- Dual DVD Rear Seat Entertainment Headrest Display Inoperative - One or More
- Dual DVD Rear Seat Entertainment Headrest Audio Malfunction
- Dual DVD Rear Seat Entertainment Headrest Video Does Not Synchronize
- Dual DVD Rear Seat Entertainment Headrest Wireless Headphones Malfunction
- Dual DVD Rear Seat Entertainment Headrest Remote Malfunction
- OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
- OnStar Microphone Malfunction
- Navigation System - Voice Guidance Malfunction
- Navigation System - Voice Recognition Malfunction
- OnStar Audio Malfunction
- No Global Positioning System (GPS) Reception
- OnStar Button LED Malfunction
- OnStar Call Center Remote Function Requests Malfunction
- OnStar Button Malfunction
- OnStar Steering Wheel Control Functions Malfunction
- Radio Audio Malfunction at Rear Seat Audio (RSA) Control
- Radio Displays CAL or CAL ERR
- Radio Displays LOC, LOCKED, or CODE
- Radio Does Not Interface with Personal Audio Link Module
- Radio Poor Reception
- Speaker Replacement Reference
- Speaker Malfunction
- Unable to Contact OnStar Call Center
- Video Entertainment System Malfunction
- Video Entertainment System Remote Control Malfunction
- Video Entertainment System Wireless Headphone Malfunction
- OnStar Voice Recognition Malfunction
- 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 Speaker Amplifier Replacement (With UQF)
- Radio Speaker Amplifier Replacement (With UQA/UQS)
- Radio Antenna Base Replacement
- Radio Digital Antenna Replacement
- Electronic Navigation Antenna Replacement
- Digital Radio Antenna Cable Replacement
- Antenna Cable Replacement
- Audio System Transceiver Module Replacement (U42)
- Audio System Transceiver Module Replacement (U42/C3U)
- Video Display Replacement (U42)
- Video Display Replacement (U42/C3U)
- Audio/Video Disc Player Adapter Replacement
- Radio Rear Speaker Grille Replacement
- Radio Front Speaker Replacement
- Front Upper Speaker Replacement
- USB Receptacle Replacement
- Radio Front Side Door Speaker Replacement
- Radio Front Floor Console Speaker Replacement
- Radio Rear Speaker Replacement
- Radio Control Switch Replacement - Rear
- Radio Rear Side Door Speaker Replacement
- Description and Operation
- Navigation System Description and Operation
- OnStar Description and Operation
- Notes
- Vehicle Communication Interface Module
- OnStar® Button Assembly
- Secondary OnStar® Controls
- OnStar® Microphone
- Cellular and GPS Antennas
- OnStar® RemoteLink (If Equipped)
- Bluetooth ® (If Equipped)
- Bluetooth ® Features Supported
- Pairing a Bluetooth ® Cellular Phone to the Vehicle
- Back-up Battery (If Equipped)
- Audio System Interface
- 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)
- Integral Multi Disc CD Changer (IMDX) (If equipped)
- Rear Seat Audio (RSA) (If equipped)
- Rear Seat Entertainment (RSE) (If Equipped)
- Theft Deterrent
- OnStar ® (if equipped)
- Steering Wheel Controls (if equipped)
- Using the Auxiliary Input Jack (if equipped)
- USB Port (If equipped)
- Speed Compensated Volume (If equipped)
- Video Entertainment System Description and Operation (Non-Headrest DVD Systems)
- Video Entertainment System Description and Operation (Dual Headrest DVD Systems)
- Special Tools and Equipment
Factory Service Tools
Use the Manual With the Right Hardware
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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.