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 MANUALSCADILLAC2011ESCALADE BASE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 987 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)
2011 Cadillac Escalade Base, AWD
Section 987 (Cellular System, Entertainment System, And Navigation System)
2011 Cadillac Escalade Base, AWDSECTION Section 987 (Cellular System, Entertainment System, And Navigation System)
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. 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 B0000
- DTC B1024
- 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 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 Procedures
- DTC B1288
- DTC B1289
- DTC B2455
- DTC B2462
- DTC B2470
- DTC B2474
- DTC B2476 or B2482
- DTC B2483 or B2484
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Symptoms - Navigation Systems
- Audio System Troubleshooting Hints
- Video Entertainment System Troubleshooting Hints
- Digital Radio Malfunction
- Digital Radio Receiver Setup
- OnStar Global Positioning System (GPS) Data Not Current or Inaccurate
- OnStar Microphone Inoperative - Caller Cannot Be Heard
- Navigation System - Voice Recognition Inoperative
- 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 TIS 2 Web Gen 4 and later)
- OnStar Steering Wheel Control Functions Inoperative
- OnStar Symptom Diagnosis
- Radio Audio Inoperative at Rear Seat Audio (RSA) Control
- Radio Controls Inoperative - Rear Seat
- Radio Displays CAL or CAL ERR
- Radio Displays LOC, LOCKED, or CODE
- Radio Poor Reception
- Radio Setup
- Speaker Replacement Reference
- Speaker Malfunction
- Unable to Contact OnStar Call Center
- Video Display is Poor or Blank
- Video Entertainment System Inoperative
- Video Entertainment System Remote Control Inoperative
- Video Entertainment System Wireless Headphone Inoperative
- Repair Instructions
- Mobile Telephone Microphone Replacement
- Communication Interface Module Replacement (without RPO SLT)
- Communication Interface Module Replacement (with RPO SLT)
- Radio Replacement (without RPO SLT)
- Radio Replacement (with RPO SLT)
- Digital Radio Receiver Replacement
- Radio Speaker Amplifier Replacement
- Mobile Telephone Digital Antenna Replacement
- Radio Antenna Replacement
- Global Positioning System (GPS) Antenna Replacement
- Radio Antenna Cable Extension Cable Replacement (with RPO SLT)
- Radio Antenna Cable Extension Cable Replacement (without RPO SLT)
- Mobile Telephone and Navigation Antenna Coaxial Cable Replacement
- Audio System Transceiver Module Replacement
- Video Display Replacement (Second Row)
- Rear Seat Audio Control Replacement
- Radio Front Speaker Grille Replacement
- Radio Front Speaker Replacement
- Front Upper Speaker Replacement
- Radio Front Side Door Speaker Replacement
- Radio Front Floor Console Speaker Replacement
- Radio Rear Side Door Speaker Replacement (Crew Cab)
- Radio Rear Side Door Speaker Replacement (Extended Cab)
- Rear Pillar Speaker Replacement
- Description and Operation
- Navigation System Description and Operation
- OnStar Description and Operation
- Notes
- New Features
- 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
- Video Entertainment System Description and Operation
- Special Tools and Equipment
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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.