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 MANUALSGMC2011SAVANA G2500, VAN CARGO, 6.0 GREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B2455CONDITIONS FOR SETTING THE DTC
2011 GMC Savana G2500, Van Cargo, 6.0 G
Conditions for Setting the DTC
2011 GMC Savana G2500, Van Cargo, 6.0 GSECTION Conditions for Setting the DTC
B2455 02
The vehicle communication interface control module detects an short to ground in the cellular phone microphone signal circuit for 10 seconds or greater.
B2455 04
The following conditions will set this DTC:
- The vehicle communication interface control module detects an open/high resistance in the cellular phone microphone signal circuit for 10 seconds or greater.
- The vehicle communication interface control module detects an open/high resistance in the low reference circuit for 10 seconds or greater.
RENDER: 1.0x
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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.