2018 BMW M550I Seat belts Problems
- Complaints
- 6about this part
- Share
- 26%of 23 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the seat belts of the 2018 BMW M550I, 26% of the 23 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I’m getting a passenger restraint system malfunction message on my infotainment. Says: “Passenger restraint system limited. Increased risk of injury in case of a collision. Continue wearing safety belt.” This is the second time this has occurred on this specific vehicle. First time was in 2021 and was repaired. Now it came up again.”
NHTSA complaint #11680940, filed 2025-08“Passenger restraint system malfunction. I took it to the dealership and was told it will cost $3785.91 to replace the passenger seat mat. Looking online, this problem appears to be widespread with many individual car owners complaining of the issue. Given that this is a life safety system and its apparent prevalence, it seems appropriate to consider this for a mandatory recall.”
NHTSA complaint #11591343, filed 2024-05“The passenger seat occupancy mat is faulty - same as in many other BMW models for which BMW has issued a 15 year warranty. The car chimes and states fasten safety belt for the passenger seat when the passenger seat is entirely empty. This error comes and goes, and stops when the belt is buckled.”
NHTSA complaint #11586141, filed 2024-04“Passenger Restraint Warning Light has been coming on off and on and now stays on all the time. Dealer has confirmed car needs to have the OC3 mat replaced at a very high price. Car is a 2018 BMW M550ix. Apparently this has been a common problem with the BMWs.”
NHTSA complaint #11543378, filed 2023-09“Passenger side sensor is faulty. BMW has issued Technical Service Bulletin to repair when found in warranty. The sensor will errantly warn airbag disable when person is not in seat.”
NHTSA complaint #11540031, filed 2023-08Seat belts: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2018 | 6 | 26% |
Other parts of the 2018 BMW M550I
10 complaintsElectrical system
4 complaintsSeats
3 complaintsEngine
2 complaintsForward collision avoidance
2 complaintsLane departure
2 complaintsOther or unknown
2 complaintsBody and structure
2 complaintsWheels
2 complaintsLatches, locks and linkages
1 complaintsSteering
1 complaintsTires
1 complaints
← All problems reported for the 2018 BMW M550I
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology