B2476 GMC Code - Cellular Phone Select Service Switch
Quick Answer
The OnStar® button assembly consists of 3 buttons: Call/Answer, OnStar® Call Center, and OnStar® Emergency. Common causes include Faulty Inside Rearview Mirror, Inside Rearview Mirror harness is open or shorted, Inside Rearview Mirror circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2476 GMC indicates Cellular Phone Select Service Switch.
- Common causes
- Common causes include Faulty Inside Rearview Mirror, Inside Rearview Mirror harness is open or shorted, Inside Rearview Mirror circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2476 GMC Description
What are the Possible Causes of the DTC B2476 GMC?
- Faulty Inside Rearview Mirror
- Inside Rearview Mirror harness is open or shorted
- Inside Rearview Mirror circuit poor electrical connection
- Faulty Telematics Communication Interface Control Module
How to Fix the DTC B2476 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
B2476:59 Cellular Phone Select Service Switch Protection Time-out
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2476 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B2476 GMC code?
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Need Help with the Code?
Get the B2476 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- B2476 2014 GMC Sierra — Cellular Phone Select Service Switch
- B2476 2015 GMC Sierra — Cellular Phone Select Service Switch
- B2476 2016 GMC Sierra — Cellular Phone Select Service Switch
- B2476 2017 GMC Sierra — Cellular Phone Select Service Switch
- B2476 2018 GMC Sierra — Cellular Phone Select Service Switch
Frequently Asked Questions about B2476 GMC Code
1. What are common symptoms of OBDII code B2476 GMC (Cellular Phone Select Service Switch)?
Symptoms may include non-functional Bluetooth connectivity, inability to pair a phone with the vehicle, and issues with hands-free calling features.
2. What is the typical cause of OBDII code B2476 GMC?
This code is typically triggered by a malfunction in the cellular phone select service switch, which is responsible for managing phone connectivity in the vehicle.
3. How can I diagnose the issue related to OBDII code B2476 GMC?
Diagnosing the issue involves checking the wiring and connections related to the cellular phone select service switch, as well as testing the switch itself for proper functionality.
4. Can I repair the cellular phone select service switch myself?
Repairing or replacing the cellular phone select service switch often requires advanced automotive knowledge and specialized tools. It is recommended to consult a professional mechanic for this repair.
5. Are there any troubleshooting tips for OBDII code B2476 GMC?
Before replacing the cellular phone select service switch, it's advisable to reset the vehicle's electronics by disconnecting the battery for a few minutes and then reconnecting it to see if the issue resolves.
6. Is OBDII code B2476 GMC a serious problem?
While the code itself may not affect the vehicle's drivability, it can cause inconvenience by disrupting phone connectivity features. It's best to address the issue to restore full functionality.
7. Can a faulty cellular phone select service switch cause other problems in the vehicle?
A faulty switch may not directly cause other mechanical issues, but it can impact the convenience and safety features related to phone connectivity while driving.
8. How do I know if the cellular phone select service switch needs to be replaced?
If thorough diagnostics confirm that the switch is faulty and all other potential causes have been ruled out, replacing the switch may be necessary to resolve OBDII code B2476 GMC.
9. Are there any software updates that can fix OBDII code B2476 GMC?
In some cases, software updates from the vehicle manufacturer may address connectivity issues related to the cellular phone select service switch. Check for any available updates through authorized service centers.
10. Can I ignore OBDII code B2476 GMC if my vehicle's other functions are working fine?
While you may choose to ignore the code if it doesn't significantly impact your driving experience, addressing the issue promptly can prevent further deterioration of the phone connectivity system in your vehicle.
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