For 1990-2009 cars only
Driver Information and Entertainment
All Description and Operation
- Navigation System Description and Operation
- OnStar Description and Operation
- Radio/Audio System Description and Operation
All Special Tools and Equipment
Diagnostic Procedures
- Bluetooth Malfunction
- Diagnostic Starting Point - Cellular, Entertainment, and Navigation
- Digital Radio Poor or No Reception
- Navigation Display Malfunction
- Navigation System - Voice Guidance Manfunction
- Navigation System - Voice Recognition Inoperative
- No Global Positioning System (GPS) Reception
- Noise Compensated Volume Malfunction
- OnStar Audio Malfunction
- OnStar Button LED Malfunction
- OnStar Button Malfunction
- OnStar Call Center Remote Function Requests Inoperative
- OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
- OnStar Microphone Malfuncation
- OnStar Steering Wheel Control Functions Inoperative
- OnStar Voice Recognition Malfunction
- Radio Displays LOC, LOCKED, or CODE
- Radio Poor Reception
- Speaker Malfunction
- Speaker Replacement Reference
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Unable to Contact OnStar Call Center
Diagnostic Trouble Codes
- DTC B0997
- DTC B101D
- DTC B101E
- DTC B1020
- DTC B1024
- DTC B1025-B1125
- DTC B125C
- DTC B1265
- DTC B1271
- DTC B1278 or B1279
- DTC B1283-B1286
- DTC B1287
- DTC B128A
- DTC B128D
- DTC B2455
- DTC B2462
- DTC B2470
- DTC B2476 or B2482
- DTC B2485
Electrical/Electronic Schematic Diagrams
Mechanical Specifications
Removal, Installation, and Replacement
- Communication Interface Module Replacement
- Digital Radio and Mobile Telephone and Vehicle Location Base Replacement
- Mobile Telephone Microphone Replacement
- Navigation and Traffic Data Antenna Replacement
- Navigation Antenna Replacement
- Navigation Information Display Opening Cover Replacement
- Radio Antenna Module Replacement
- Radio Control Assembly Replacement
- Radio Front Side Door Lower Speaker Replacement
- Radio Front Speaker Replacement
- Radio Rear Side Door Speaker Replacement
- Radio Rear Speaker Replacement
- Radio Replacement
- Radio Speaker Amplifier Replacement
- Radio Volume Compensator Interior Noise Microphone Replacement
- Radio, Video, Audio Disc Player, and Navigation Information Display Replacement
- Television Antenna Amplifier Replacement
- Television Antenna Cable Replacement
- Television Tuner Replacement
- Wireless Communication Interface Antenna Replacement
