AutoCodes – GMC – B191A 2016 GMC Sierra

B191A 2016 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 2016 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.

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Code Popularity 146

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 24, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B191A 2016 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 2016 GMC Sierra - Front Heated Seat Module - AutoCodes.com — B191A 2016 GMC Sierra Code - Front Heated Seat Module

What does this mean?

What are the Possible Causes of the DTC B191A 2016 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 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the B191A 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B191A 2016 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 2016 GMC Sierra Code

1. What does OBDII code B191A for the Front Heated Seat Module indicate on a 2016 GMC Sierra?

This code typically indicates a fault or malfunction in the front heated seat module of the vehicle.

2. What are some common symptoms of OBDII code B191A on a 2016 GMC Sierra?

Common symptoms may include non-functioning or erratic operation of the front heated seats, such as the seats not heating up as expected.

3. What are possible causes of OBDII code B191A on a 2016 GMC Sierra?

Potential causes of this code include a faulty front heated seat module, wiring issues, blown fuses, or a problem with the seat heating elements.

4. How can I diagnose the issue related to OBDII code B191A on my 2016 GMC Sierra?

To diagnose the problem, it is recommended to use a diagnostic scanner to retrieve the specific error codes, inspect the wiring and connectors associated with the front heated seats, and test the seat heating elements.

5. Can I repair OBDII code B191A on my 2016 GMC Sierra myself?

If you are comfortable working with automotive electrical systems, you may be able to repair this issue yourself by addressing any wiring issues, replacing the front heated seat module, or fixing the seat heating elements.

6. Should I reset the OBDII code B191A after making repairs on my 2016 GMC Sierra?

Yes, it is advisable to clear the error code after resolving the underlying issue related to the front heated seat module to ensure that the system recognizes the repair and functions properly.

7. Are there any safety precautions to keep in mind when working on OBDII code B191A on a 2016 GMC Sierra?

When working on electrical components like the front heated seat module, always disconnect the vehicle's battery to prevent any accidental shorts or shocks.

8. How much does it typically cost to repair OBDII code B191A on a 2016 GMC Sierra at a professional auto repair shop?

The cost of repairing this code can vary depending on the specific issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts needed.

9. Can OBDII code B191A on a 2016 GMC Sierra cause any other issues with the vehicle?

While this code specifically relates to the front heated seat module, unresolved issues with the heating system may impact passenger comfort but should not affect the overall performance or safety of the vehicle.

10. Is it important to address OBDII code B191A promptly on my 2016 GMC Sierra?

It is recommended to address this code in a timely manner to ensure the proper functioning of the front heated seat system, especially in colder weather when the seat heaters may be needed for comfort.