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.
2017 Chevrolet SS Standard TransFACTORY OEM SERVICE PROCEDURE
Cellular System, Entertainment System, And Navigation System - DTCS
CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM - DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B0997 | Info Display Module Malfunction |
| DTC B1020 | Auxiliary Electronic Control Unit (ECU) Performance |
| DTC B125A | Antenna Signal Circuit |
| DTC B125C | Satellite Antenna Circuit |
| DTC B1265 | Switched 14 Volt Performance Short to Ground |
| DTC B1271 | Theft Protection Active |
| DTC B1287 | Amplifier Control Signal Circuit |
| DTC B1446 or B1447 | Backup Power Source |
| DTC B2455 | Cellualr Phone Microphone Circuit |
| DTC B2462 | Global Positioning System |
| DTC B2470 | Cellular Phone Antenna Circuit Malfunction |
| DTC B2476 or B2482 | Cellular Phone Select Service Switch |
| DTC B2485 | Wireless Communication (BT) Antenna Circuit |
| DTC U0255-U0257 | Lost Communication with Info Display |
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.