AutoCodes – GMC – B302A 2015 GMC Sierra

B302A 2015 GMC Sierra Code - Mobile Telephone Communications Interface Requested Immobilization

Quick Answer

As part of the vehicle telematics enhanced services, a request may be sent to the Body Control Module (BCM) to disable vehicle starting. Common causes include Contact OnStar. 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
B302A 2015 GMC Sierra indicates Mobile Telephone Communications Interface Requested Immobilization.
Common causes
Common causes include Contact OnStar.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 200
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 02, 2023
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Code B302A 2015 GMC Sierra Description

As part of the vehicle telematics enhanced services, a request may be sent to the Body Control Module (BCM) to disable vehicle starting. If a valid message is received by the BCM requesting that starting be disabled, the start enable message will not be sent to the Engine Control Module (ECM).
OBDII Code B302A 2015 GMC Sierra - Mobile Telephone Communications Interface Requested Immobilization - AutoCodes.com
B302A 2015 GMC Sierra Code - Mobile Telephone Communications Interface Requested Immobilization

What are the Possible Causes of the DTC B302A 2015 GMC Sierra?

  • Contact OnStar

How to Fix the DTC B302A 2015 GMC Sierra?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B302A 2015 GMC Sierra 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 B302A 2015 GMC Sierra code?

Need more information on how to fix the B302A 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B302A 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B302A 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code B302A in a 2015 GMC Sierra?

- Common symptoms include issues with the mobile telephone communications interface, such as difficulties with pairing devices or connecting to the system.

2. What does the OBDII code B302A for Mobile Telephone Communications Interface Requested Immobilization mean on a 2015 GMC Sierra?

- This code indicates a request to immobilize the mobile telephone communications interface, which may prevent it from functioning properly.

3. What are the potential causes of OBDII code B302A in a 2015 GMC Sierra?

- Possible causes include a fault in the mobile telephone communications module, wiring issues, software glitches, or a problem with the communication network.

4. How can I diagnose and repair OBDII code B302A on my 2015 GMC Sierra?

- Diagnosing and repairing this code may require specialized diagnostic equipment to pinpoint the exact cause, which could involve checking the module, inspecting wiring, and updating software if needed.

5. Is it safe to continue driving my 2015 GMC Sierra with OBDII code B302A present?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper functioning of the mobile telephone communications system.

6. Can a DIY enthusiast fix OBDII code B302A in a 2015 GMC Sierra?

- While some basic troubleshooting steps like checking connections and fuses can be done by DIY enthusiasts, diagnosing and repairing the root cause of this code may require professional assistance.

7. How much does it cost to repair OBDII code B302A on a 2015 GMC Sierra?

- The cost of repairing this code can vary depending on the cause of the issue, the labor rates in your area, and whether any parts need to be replaced. It is advisable to consult a mechanic for an accurate estimate.

8. Will resetting the OBDII code B302A on my 2015 GMC Sierra make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear. It is essential to diagnose and repair the problem to prevent future occurrences.

9. Can OBDII code B302A in a 2015 GMC Sierra cause other systems to malfunction?

- While this code specifically relates to the mobile telephone communications interface, it is always possible that issues in one system can affect others. Prompt attention to resolving the code is recommended.

10. How can I prevent OBDII code B302A from appearing in my 2015 GMC Sierra in the future?

- Regular maintenance, such as checking the communication system components and ensuring software updates are current, can help prevent this code from reoccurring.

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