B1820 2015 GMC Sierra Code - Driver Seat Recline Rearward Switch Circuit
Quick Answer
The B1820 diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to the Driver Seat Recline Rearward Switch Circuit. Common causes include Faulty driver seat recline rearward switch, Damaged wiring or connectors in the seat adjustment circuit, BCM malfunction or failure. 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
- B1820 2015 GMC Sierra indicates Driver Seat Recline Rearward Switch Circuit.
- Common causes
- Common causes include Faulty driver seat recline rearward switch, Damaged wiring or connectors in the seat adjustment circuit, BCM malfunction or failure.
- 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 B1820 2015 GMC Sierra Description
The B1820 diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to the Driver Seat Recline Rearward Switch Circuit. This code is generated when the Body Control Module (BCM) detects a malfunction or failure in the circuit that controls the driver seat's recline rearward switch. The driver seat recline rearward switch is responsible for adjusting the angle of the driver's seat to allow for a more comfortable driving position. When this circuit malfunctions, it can result in the inability to adjust the seat position, leading to discomfort for the driver and potentially compromising their ability to operate the vehicle safely.
Common Causes of B1820 2015 GMC Sierra
- Faulty driver seat recline rearward switch
- Damaged wiring or connectors in the seat adjustment circuit
- BCM malfunction or failure
- Loose or corroded electrical connections in the circuit
- Physical obstruction preventing the seat from moving
Symptoms of B1820 2015 GMC Sierra
- Inability to adjust the driver's seat angle rearward
- Unresponsive or erratic behavior from the seat adjustment switch
- Strange noises or vibrations when attempting to adjust the seat position
- The seat gets stuck in a particular position and cannot be moved
- Dashboard warning light related to the driver seat adjustment system
How to Fix B1820 2015 GMC Sierra
- Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the DTC and pinpoint the faulty component.
- If the problem lies with the driver seat recline rearward switch, replace the switch with a new, OEM-approved part.
- Inspect the wiring and connectors in the seat adjustment circuit for any damage or corrosion. Repair or replace any compromised components.
- Test the circuit to ensure proper functionality and address any loose connections or wiring issues.
- Clear the DTC from the vehicle's memory using the diagnostic scanner to reset the system and verify that the issue has been resolved.
Cost to Fix B1820 2015 GMC Sierra
The typical repair costs for addressing a B1820 DTC related to the driver seat recline rearward switch circuit in a 2015 GMC Sierra can vary depending on the specific cause of the issue and the extent of repairs needed. Generally, replacement parts such as a new switch can range from $50 to $150, while labor costs can range from $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total cost for addressing this issue may fall within the range of $150 to $450. It's advisable to consult with a professional mechanic or auto repair shop to get a more accurate estimate based on the specific circumstances of the vehicle.
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Frequently Asked Questions about B1820 2015 GMC Sierra Code
1. What does OBDII code B1820 for a 2015 GMC Sierra indicate?
- OBDII code B1820 specifically relates to the Driver Seat Recline Rearward Switch Circuit in a 2015 GMC Sierra.
2. What are the common symptoms of OBDII code B1820 in a 2015 GMC Sierra?
- Common symptoms include non-functioning or erratic operation of the driver seat recline rearward switch.
3. What are the possible causes of OBDII code B1820 in a 2015 GMC Sierra?
- The code may be triggered by a faulty driver seat recline rearward switch, damaged wiring or connectors, or a malfunctioning control module.
4. How can I diagnose the issue causing OBDII code B1820 in my 2015 GMC Sierra?
- To diagnose the problem, you can perform a visual inspection of the wiring and connectors, test the switch for continuity, and use a scan tool to check for any other related codes.
5. Can I repair OBDII code B1820 in my 2015 GMC Sierra myself?
- Depending on your skills and experience, you may be able to repair the issue yourself by replacing the faulty switch, repairing damaged wiring, or addressing any other identified problems.
6. Is it safe to continue driving my 2015 GMC Sierra with OBDII code B1820?
- It is recommended to address the issue promptly to ensure the proper functioning of the driver seat controls and avoid any potential safety hazards.
7. How much does it typically cost to fix OBDII code B1820 in a 2015 GMC Sierra?
- The cost of repairs can vary depending on the specific cause of the issue, but it may involve replacement parts and labor charges.
8. Can resetting the OBDII system clear code B1820 in my 2015 GMC Sierra?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.
9. Are there any recalls or technical service bulletins related to OBDII code B1820 for the 2015 GMC Sierra?
- Checking with a GMC dealership or reviewing online resources can help determine if there are any relevant recalls or technical service bulletins related to this code.
10. How can I prevent OBDII code B1820 from appearing in my 2015 GMC Sierra in the future?
- Regular maintenance, prompt repairs of any related issues, and ensuring proper handling of the driver seat controls can help prevent the recurrence of this code.
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