B0021 2017 GMC Sierra Code - Passenger Seat Side Air Bag Deployment Loop
Quick Answer
The B0021 code on a 2017 GMC Sierra indicates a problem with the passenger seat side airbag deployment loop. Common causes include Faulty passenger seat side airbag deployment loop, Wiring or connection issues in the airbag circuit, Faulty airbag control module. 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
- B0021 2017 GMC Sierra indicates Passenger Seat Side Air Bag Deployment Loop.
- Common causes
- Common causes include Faulty passenger seat side airbag deployment loop, Wiring or connection issues in the airbag circuit, Faulty airbag control module.
- 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 B0021 2017 GMC Sierra Description
The B0021 code on a 2017 GMC Sierra indicates a problem with the passenger seat side airbag deployment loop. The airbag deployment loop is a crucial component of the vehicle's safety system that helps ensure the proper deployment of the airbag in the event of a collision. When this code is triggered, it means that there is a fault or malfunction in the circuit that controls the passenger seat side airbag, potentially compromising the airbag's ability to deploy effectively.
Common Causes of B0021 2017 GMC Sierra
- Faulty passenger seat side airbag deployment loop
- Wiring or connection issues in the airbag circuit
- Faulty airbag control module
- Vehicle collision or impact that may have damaged the airbag system
- Corrosion or damage to the airbag deployment loop components
Symptoms of B0021 2017 GMC Sierra
- Illumination of the airbag warning light on the dashboard
- Error codes related to the airbag system displayed on the diagnostic scanner
- Inability to reset the airbag system after attempting to clear the code
- Failure of the passenger seat side airbag to deploy during a crash
How to Fix B0021 2017 GMC Sierra
- Begin by conducting a thorough inspection of the passenger seat side airbag deployment loop to identify any visible damage or issues.
- Check the wiring and connections in the airbag circuit for any signs of damage, corrosion, or loose connections. Repair or replace any damaged components as needed.
- Test the airbag control module to ensure it is functioning properly. Replace the module if necessary.
- Clear the B0021 code from the vehicle's computer system using a diagnostic scanner after completing the repairs.
- Perform a test drive to confirm that the passenger seat side airbag deploys correctly and that the code does not reappear.
Cost to Fix B0021 2017 GMC Sierra
The typical repair costs for addressing a B0021 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of parts for replacing components in the airbag system can range from $200 to $500, while labor costs can range from $150 to $300. Overall, the total repair cost for addressing a B0021 code may range from $350 to $800. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the specific diagnosis and repair processes required. It is recommended to consult with a qualified mechanic or auto repair shop to obtain a more accurate cost estimate for addressing this issue.
Tech Notes for B0021 2017 GMC Sierra
B0021:02 Passenger Seat Side Air Bag Deployment Loop Short to Ground
B0021:04 Passenger Seat Side Air Bag Deployment Loop Open
B0021:0D Passenger Seat Side Air Bag Deployment Loop High Resistance
B0021:0E Passenger Seat Side Air Bag Deployment Loop Low Resistance
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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B0021 2017 GMC Sierra Code
1. What does OBDII code B0021 on a 2017 GMC Sierra indicate?
- OBDII code B0021 on a 2017 GMC Sierra specifically relates to the Passenger Seat Side Air Bag Deployment Loop.
2. What are the common symptoms of OBDII code B0021 in a 2017 GMC Sierra?
- Common symptoms of OBDII code B0021 in a 2017 GMC Sierra may include an illuminated airbag warning light on the dashboard.
3. What are the possible causes of OBDII code B0021 in a 2017 GMC Sierra?
- Possible causes of OBDII code B0021 in a 2017 GMC Sierra include a fault in the passenger seat side airbag deployment loop circuit.
4. How can I diagnose the issue related to OBDII code B0021 in my 2017 GMC Sierra?
- Diagnosing the issue related to OBDII code B0021 in a 2017 GMC Sierra typically involves using a professional OBDII scanner to retrieve the specific fault codes.
5. Can I continue to drive my 2017 GMC Sierra with OBDII code B0021?
- It is not recommended to continue driving your 2017 GMC Sierra with OBDII code B0021, as it indicates a potential issue with the passenger seat side airbag system.
6. What are some repair tips for fixing OBDII code B0021 in a 2017 GMC Sierra?
- Repair tips for fixing OBDII code B0021 in a 2017 GMC Sierra may include checking and repairing any damaged wiring or connectors in the passenger seat side airbag deployment loop circuit.
7. Is it possible to reset OBDII code B0021 in a 2017 GMC Sierra without fixing the underlying issue?
- While it is possible to clear the code temporarily, it will likely reappear until the underlying issue with the passenger seat side airbag deployment loop is properly addressed.
8. How much does it typically cost to repair OBDII code B0021 in a 2017 GMC Sierra?
- The cost to repair OBDII code B0021 in a 2017 GMC Sierra can vary depending on the extent of the issue and whether professional assistance is required.
9. Are there any safety concerns associated with OBDII code B0021 in a 2017 GMC Sierra?
- Yes, there are safety concerns associated with OBDII code B0021 in a 2017 GMC Sierra, as it indicates a potential problem with the passenger seat side airbag system, which could affect its functionality in an accident.
10. Can I fix OBDII code B0021 in a 2017 GMC Sierra myself, or do I need to take it to a professional mechanic?
- While some basic troubleshooting like checking for loose connections can be done by DIY enthusiasts, it is generally recommended to consult a professional mechanic for proper diagnosis and repair of OBDII code B0021 in a 2017 GMC Sierra.
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