AutoCodes – GMC – B191A 2015 GMC Sierra

B191A 2015 GMC Sierra Code - Front Heated Seat Module

Quick Answer

The Diagnostic Trouble Code (DTC) will be set when an internal fault is detected inside the Front Heated Seat Module. Common causes include Faulty Front Heated Seat Module, Front Heated Seat Module harness is open or shorted, Front Heated Seat Module 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
B191A 2015 GMC Sierra indicates Front Heated Seat Module.
Common causes
Common causes include Faulty Front Heated Seat Module, Front Heated Seat Module harness is open or shorted, Front Heated Seat Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 178
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 24, 2023
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B191A 2015 GMC Sierra Description

The Diagnostic Trouble Code (DTC) will be set when an internal fault is detected inside the Front Heated Seat Module. No external circuits are involved
OBDII Code B191A 2015 GMC Sierra - Front Heated Seat Module - AutoCodes.com
B191A 2015 GMC Sierra Code - Front Heated Seat Module

What are the Possible Causes of the DTC B191A 2015 GMC Sierra?

  • Faulty Front Heated Seat Module
  • Front Heated Seat Module harness is open or shorted
  • Front Heated Seat Module circuit poor electrical connection

How to Fix the DTC B191A 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B191A 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 B191A 2015 GMC Sierra code?

Need more information on how to fix the B191A 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B191A 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 B191A 2015 GMC Sierra Code

1. What does the OBD-II code B191A mean on a 2015 GMC Sierra?

The code B191A indicates a communication fault in the Front Heated Seat Module, often due to wiring or module-related issues.

2. What are the common symptoms of the B191A code in a 2015 GMC Sierra?

Symptoms may include non-functional heated seats, error messages on the dashboard, or inconsistent seat heating performance.

3. What causes the B191A code to appear in a GMC Sierra?

Possible causes include damaged wiring, a faulty Front Heated Seat Module, poor electrical connections, or a software glitch.

4. Can the B191A code be cleared without repairs?

Clearing the code without addressing the underlying issue may temporarily remove the warning, but the problem is likely to return.

5. How do you diagnose the B191A code on a 2015 GMC Sierra?

Diagnosis involves scanning for codes, inspecting wiring and connectors, and testing the functionality of the Front Heated Seat Module.

6. Is it safe to drive with the B191A code active in a GMC Sierra?

Yes, it's generally safe to drive, but the heated seat feature may not function properly until the issue is resolved.

7. What tools are needed to troubleshoot the B191A code?

Tools may include an OBD-II scanner, a multimeter for electrical testing, and service manuals for wiring diagrams.

8. How much does it typically cost to fix the B191A code on a GMC Sierra?

Repair costs vary but may range from $100 to $500 depending on whether the issue is with wiring, connectors, or the module itself.

9. Can a software update fix the B191A code on a 2015 GMC Sierra?

In some cases, a software update for the Front Heated Seat Module may resolve the issue if it's caused by a programming fault.

10. How can I prevent the B191A code from recurring?

Regular maintenance, checking for loose connections, and avoiding damage to seat wiring can help prevent the code from reappearing.

Discuss the causes and fixes for B191A 2015 GMC Sierra OBDII Code

Code B191A 2015 GMC Sierra comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play