B0020 on HONDA ACCORD — Left Side Airbag Deployment Control

Q: "What does B0020 mean on a HONDA ACCORD?"

"B0020 indicates: Left Side Airbag Deployment Control. This is a body electrical code. 3 HONDA ACCORD owners have reported this to NHTSA."

Q: "What are the most common causes of B0020 on HONDA ACCORD?"

"Based on 3 NHTSA reports, the most commonly cited components are: Air Bags, Air Bags,Seat Belts. These percentages are based on the component field in owner complaints."

Q: "Is B0020 serious on my HONDA ACCORD?"

"Of 3 NHTSA reports for this code on HONDA ACCORD, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my HONDA ACCORD shows B0020?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What B0020 Means on Your HONDA ACCORD

B0020 is a diagnostic trouble code indicating: Left Side Airbag Deployment Control. This code relates to the body electrical system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

3 HONDA ACCORD owners have reported this issue to NHTSA across model years 2018-2020. Most reports come from the 2018, 2019 model years. The most commonly reported component is Air Bags (66.7% of reports).

Real HONDA ACCORD Owner Reports

Source: NHTSA Complaints Database

"About two months ago, SRS/Supplmental Restrain light came on. It has been coming on/off. Took to the dealership to check; however at that time the light was off-they did not find anything wrong. ON 9/5/24, the light came on again, took to the dealership same day. They diagnosed as code B0020-13."

— 2018 HONDA ACCORD owner · AIR BAGS · Filed 07/02/2024

"My Honda Accord car has warning sign came multiple times . SRS -Airbag LF side impact . B0020-13 Honda dealer has suggested to replace Left side airbag module . I have contacted Honda but he has denied for any recall or repair cost. Vehicle mileage is around 26K and 2019 year model accord."

— 2019 HONDA ACCORD owner · AIR BAGS · Filed 07/14/2023

"On December 26, 2025, the supplemental restraint system problem appeared on the dashboard. On January 6, 2026, vehicle was taken to Stockton Honda service department to performed a diagnostic test and multi-point inspection was completed."

— 2020 HONDA ACCORD owner · AIR BAGS,SEAT BELTS · Filed 12/26/2025

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'18

1

'19

1

'20

Common Causes on HONDA ACCORD

Based on NHTSA complaint component analysis for this vehicle.

AIR BAGS 66.7%

AIR BAGS,SEAT BELTS 33.3%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does B0020 mean on a HONDA ACCORD? ▾

B0020 indicates: Left Side Airbag Deployment Control. This is a body electrical code. 3 HONDA ACCORD owners have reported this to NHTSA.

What are the most common causes of B0020 on HONDA ACCORD? ▾

Based on 3 NHTSA reports, the most commonly cited components are: Air Bags, Air Bags,Seat Belts. These percentages are based on the component field in owner complaints.

Is B0020 serious on my HONDA ACCORD? ▾

Of 3 NHTSA reports for this code on HONDA ACCORD, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my HONDA ACCORD shows B0020? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.