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 MANUALSCADILLAC2011CTS V, 2D COUPE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM
2011 Cadillac CTS V, 2D Coupe, Standard
Cellular System, Entertainment System, And Navigation System
2011 Cadillac CTS V, 2D Coupe, StandardSECTION Cellular System, Entertainment System, And Navigation System
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B0997
- DTC B1020
- DTC B1024
- DTC B1025-B1125
- 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 B125C
- DTC B1265
- DTC B1271
- DTC B1278 or B1279
- DTC B128A
- DTC B128D
- DTC B1283-B1286
- 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 B2455
- DTC B2462 (Navigation Radio)
- DTC B2470
- DTC B2476 or B2482
- DTC B2485
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Bluetooth Malfunction
- Digital Radio Poor or No Reception
- 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
- Noise Compensated Volume Malfunction
- OnStar Button LED Malfunction
- OnStar Call Center Remote Function Requests Malfunction
- OnStar Button Malfunction
- OnStar Steering Wheel Control Functions Malfunction
- Radio Displays LOC, LOCKED, or CODE
- Radio Poor Reception
- Speaker Replacement Reference
- Speaker Malfunction
- Unable to Contact OnStar Call Center
- Navigation Display Malfunction
- OnStar Voice Recognition Malfunction
- Repair Instructions
- Mobile Telephone Microphone Replacement
- Communication Interface Module Replacement
- Wireless Communication Interface Antenna Replacement
- Radio Replacement
- Radio Control Assembly Replacement (with Navigation Display)
- Radio Control Assembly Replacement (without Navigation Display)
- Radio Volume Compensator Interior Noise Microphone Replacement
- Radio Speaker Amplifier Replacement (Wagon with UQA)
- Radio Speaker Amplifier Replacement (Wagon with UQS)
- Radio Speaker Amplifier Replacement (Sedan, Coupe With UQA)
- Radio Speaker Amplifier Replacement (Sedan, Coupe With UQS)
- Navigation Information Display Opening Cover Replacement
- Mobile Telephone Digital Antenna Replacement
- Radio Antenna Coil Replacement (Wagon)
- Television Antenna Amplifier Replacement
- Radio Antenna Module Replacement (Sedan)
- Radio Antenna Module Replacement (Wagon)
- Radio Antenna Module Replacement (Coupe)
- Television Antenna Cable Replacement
- Television Tuner Replacement
- Digital Radio, Mobile Telephone, and Vehicle Location Base Replacement
- Navigation and Traffic Data Antenna Replacement (With U2X)
- Navigation Antenna Replacement (With UAV or U2Y)
- Radio, Video, Audio Disc Player, and Navigation Information Display Replacement
- Radio Front Speaker Replacement
- Radio Front Side Door Lower Speaker Replacement
- Radio Rear Speaker Replacement (Sedan, Coupe)
- Radio Rear Side Door Speaker Replacement (Sedan, Wagon)
- Radio Rear Side Door Speaker Replacement (Coupe)
- Radio Rear Corner Upper Garnish Molding Speaker Replacement (Wagon)
- Radio Body Rear Corner Upper Garnish Molding Speaker Grille Replacement (Wagon)
- Radio Rear Compartment Speaker Replacement (Wagon)
- Description and Operation
- Navigation System Description and Operation
- Navigation System Components
- Infotainment Faceplate Control Module
- Navigation Radio
- Touch - Screen Color Display Module
- Color Display Module Actuator
- Remote Auxiliary Jack/USB Adapter
- Global Positioning System (GPS) Antenna
- TV and VICS Antenna
- TV Antenna Module
- TV Antenna Amplifier
- VICS Module
- VICS Optical Beacon Antenna
- Browser
- Planning a Route
- Beam
- Voice Recognition
- OnStar Description and Operation
- Notes
- Telematics Communication Interface Module
- OnStar® Button Assembly
- Secondary OnStar® Controls
- OnStar® Microphone
- Cellular and GPS Antennas
- 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
- Radio Faceplate
- 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)
- Auxiliary Input Jack (if equipped)
- USB Port (if equipped)
- Noise Compensation (If equipped)
- Speed Compensated Volume (If equipped)
- Video Entertainment System Description and Operation (Dual Headrest DVD Systems)
- Navigation 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.