B191A GMC 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 GMC 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.
Code B191A GMC Description
What are the Possible Causes of the DTC B191A GMC?
- 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 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B191A 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.
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Information for Specific GMC Models
- B191A 2014 GMC Sierra — Front Heated Seat Module
- B191A 2015 GMC Sierra — Front Heated Seat Module
- B191A 2016 GMC Sierra — Front Heated Seat Module
- B191A 2017 GMC Sierra — Front Heated Seat Module
- B191A 2018 GMC Sierra — Front Heated Seat Module
Frequently Asked Questions about B191A GMC Code
1. What does the OBDII code B191A mean for a GMC vehicle?
The code B191A indicates a malfunction in the Front Heated Seat Module, which is responsible for controlling the heating function of the front seats.
2. What are common symptoms of the B191A code in a GMC vehicle?
Common symptoms include the front heated seats not warming up, intermittent seat heating, or the heated seat controls not responding.
3. What causes the B191A code on a GMC vehicle?
Typical causes include a faulty Front Heated Seat Module, damaged wiring or connectors, or power supply issues to the module.
4. Can a blown fuse trigger the B191A code?
Yes, a blown fuse related to the heated seat circuit can contribute to the code and prevent the module from functioning properly.
5. How can I diagnose the B191A code in my GMC vehicle?
Start by checking the heated seat module fuse, inspecting wiring and connectors for damage, and testing the module itself for proper operation.
6. Is it safe to drive with the B191A code on my GMC vehicle?
Yes, the code usually affects comfort features and does not compromise vehicle safety or drivability.
7. How do you fix the B191A code on a GMC vehicle?
Repairs may include replacing the Front Heated Seat Module, repairing damaged wiring or connectors, or replacing a blown fuse.
8. Can a faulty heated seat switch cause the B191A code?
Yes, if the heated seat switch is malfunctioning, it can prevent the module from receiving commands and trigger the code.
9. How much does it typically cost to fix the B191A code on a GMC vehicle?
Repair costs vary but can range from $150 to $500 depending on whether the module, wiring, or other components need replacement.
10. Will clearing the B191A code with a scan tool fix the problem?
Clearing the code may temporarily erase it, but if the underlying issue isn’t resolved, the code will return.
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