Accessories

All Description and Operation

• OnStar Description and Operation

Diagnostic Procedures

• Diagnostic Starting Point - Cellular Communication
• 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 Reconfiguration
• OnStar Symptom Diagnosis
• OnStar Voice Recognition Malfunction
• Symptoms - Cellular Communication
• Unable to Contact OnStar Call Center

Diagnostic Trouble Codes

• DTC B1001
• DTC B2455
• DTC B2470
• DTC B2476
• DTC B2482
• DTC B2483 or B2484
• DTC U1500

Electrical/Electronic Schematic Diagrams

• OnStar Schematics

General Diagnostic Information

• Scan Tool Data Definitions
• Scan Tool Data List

Mechanical Specifications

• Fastener Tightening Specifications

Removal, Installation, and Replacement

• Cellular and Navigation Antenna Assembly Replacement
• Cellular Communications/Digital Radio Antenna Replacement
• Communication Interface Module Replacement
• Mobile Telephone and Navigation Antenna Coaxial Cable Replacement
• Mobile Telephone Digital Antenna Replacement
• Mobile Telephone Microphone Replacement
• Navigation Control Processor Bracket Replacement
• OnStar Button Assembly Replacement