2018 Tesla Model 3 · symptom sheet
Airbag warning light or recall
- 142owner reports
- 47,000median miles
- $1,322median quote
- 15involved a crash
Newest report Sep 22, 2026 · checked Oct 2, 2026
142 of the 1,026 complaints on this car describe airbag.
Narrower sheets: Passenger airbag sensor problems (41 reports) · Takata airbag inflator recall (38 reports)
Tick what matches of 142 reports
Airbag on other Model 3 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
Airbag complaints split into a few kinds. The most common is an airbag warning light that won't go out. Others involve the passenger seat sensor switching the passenger bag off with an adult sitting there, an airbag that didn't deploy in a crash, or one that went off without a crash at all. A large share also come from owners waiting on a recall part.
What got replaced
Owners who name the part that was replaced mention the occupant sensor (66 reports) and the module (12 reports).
Recalls and investigations
No recall on the airbags covers the 2018 model year as of Oct 2, 2026.
What owners paid
63 of the 142 reports quote a price. Each dot is one quote. The middle half runs $1,000 to $1,955.
When it happens
The middle half of failures fell between 19,000 and 60,000 miles, from the 34 reports that gave a mileage.
What owners wrote
“I have an active alert on the drive side safety restraint system. Alert code RCM_a021. I have noticed this appears to be a common problem. A recall should be issues as this a a safety issues and lives could be at stake.”
Filed Nov 26, 2025
“The "Front passenger safety restraint system" is prone to errors because the wiring for it beneath the seat is prone to getting knocked loose and electrical interference”
Filed Oct 19, 2025
“Airbag failed at 60k miles requiring a replacement. This is a known- safety issue, Tesla has corrected this problem in later cars, and Tesla should issue a recall to correct. I have error codes RCM_a015 and RCM_a014”
Filed Jan 5, 2024 · 60,000 miles
“Got an error code "RCM_a056" that indicates that there is a fault with the Front passenger safety restraint system. Looking at this problem online it seems that is not very unique and many owners of 2018 Model 3 have suffered the same issue. I was quoted for a service that changes the OCS sensor, but then they also have to replace the airbag due to "compatibility" reasons.”
Filed Jun 24, 2023
Should you keep driving it?
This page can't tell you that. 15 of 142 reports involved a crash and 9 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Suspension noise, struts or alignment 186 reports
- Seat belt or seat problems 152 reports
- Infotainment, screen or backup camera fails 131 reports
- Brakes on its own (automatic emergency braking) 100 reports
- Brakes grind, pulse or wear early 88 reports
- Adaptive cruise or lane keeping misbehaves 82 reports
- Forward collision warning goes off or the camera drops out 38 reports
- Battery dies or the car will not start 32 reports
- Full Self-Driving (FSD) does something unsafe 29 reports
- Wheel bearing, tires or wheels 26 reports