AutoCodes – Chevrolet – B191A 2018 Chevrolet Silverado

B191A 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 185

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Front Heated Seat Module - AutoCodes.com — B191A 2018 Chevrolet Silverado Code - Front Heated Seat Module

What does this mean?

What are the Possible Causes of the DTC B191A 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

Need more information on how to fix the B191A 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B191A 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

1. What does OBDII code B191A mean on a 2018 Chevrolet Silverado?

Code B191A indicates a fault in the Front Heated Seat Module, typically related to communication or performance issues within the module or its associated circuits.

2. What are common symptoms of the B191A code in a 2018 Chevrolet Silverado?

Symptoms may include the front heated seats not functioning, an illuminated seat heater indicator that turns off quickly, or no response when attempting to activate the heated seat feature.

3. What causes the B191A code to appear in a Chevrolet Silverado?

The code can be caused by a faulty Front Heated Seat Module, damaged wiring or connectors, a blown fuse, or a software issue within the vehicle's control systems.

4. Can the B191A code cause any safety concerns in the vehicle?

No, the B191A code does not pose a safety risk, but it will prevent the heated seats from working, which could reduce comfort in colder weather.

5. How can I diagnose the B191A code in my 2018 Chevrolet Silverado?

Start by inspecting the wiring and connectors for the Front Heated Seat Module. Use a scan tool to verify the code and check for related codes. Testing the module's power supply and ground connections is also recommended.

6. Can the B191A code be fixed without replacing the Front Heated Seat Module?

Yes, if the issue is due to damaged wiring, loose connectors, or a blown fuse, repairing or replacing these components may resolve the code without needing to replace the module.

7. How much does it cost to repair the B191A code on a Chevrolet Silverado?

The cost can vary depending on the cause. Simple wiring repairs or fuse replacements may cost under $100, while module replacement can range from $300 to $600, including parts and labor.

8. Can I clear the B191A code without fixing the issue?

You can clear the code using an OBDII scan tool, but it will likely return if the underlying problem is not addressed.

9. Is it safe to drive with the B191A code active?

Yes, the vehicle is safe to drive, but the heated seat functionality will not work until the issue is resolved.

10. Do I need a professional mechanic to fix the B191A code?

If you're comfortable with basic electrical diagnostics and repairs, you may be able to fix the issue yourself. However, for complex problems or module replacement, seeking professional help is recommended.