49 of the 4,006 complaints filed about the Mazda MAZDA3 are about the seat belts — 1% of everything owners reported. The worst model year for it is 2010.
49
Complaints
1%
Share of all complaints
8
Crashes
0
Fires
SEAT BELTS
Driver’s side seat belt would not retract.
NHTSA complaint #11756042 — an unverified report by a vehicle owner.
SEAT BELTS
I am reporting a catastrophic failure of the rear seatbelt restraint system in my 2025 Mazda 3. The rear seatbelt guide geometry is badly designed, allowing the webbing to bunch and jam during normal operation. This physical obstruction prevents the seatbelt from retracting, leading to three severe safety hazards: 1) Total failure to restrain occupants. 2) Structural damage to the vehicle's safety cell. 3) Public hazard where the obstructed door rebounded open into oncoming traffic. Restraint Failure: On multiple occasions, the rear seatbelt jammed in the guide clip while in use. Due to the lack of retraction, a 200lb adult passenger was able to fully exit the vehicle while the belt remained buckled. Most alarmingly, the vehicle's safety logic failed to trigger any occupancy warning alarms. The system remained "satisfied" because the buckle was engaged, despite providing zero tension or restraint to the occupant. Structural Damage & Public Hazard: Because the belt failed to retract, it remained loose and obstructed the rear door's closing path. The door rebounded off the slack belt into oncoming traffic, resulting in a significant structural dent to the C-pillar (door jamb) immediately adjacent to the striker. This deformation occurred in a critical area for side-impact protection. Efforts to Resolve: The vehicle was inspected by a dealer, who claimed the system was functioning normally despite being shown the jamming. I escalated this to the Mazda North American Operations Executive Office. The executive team issued a final dismissal, refusing to provide technical answers or acknowledge the documented failure points. Crucially, they denied my request for a Regional Technical Manager (RTM) to perform an engineering review of the guide geometry and refused to inspect the damage to the C-pillar. By refusing a corporate inspection, Mazda has ignored a reported life-safety defect and its resulting structural damage. This is documented on a video provided
NHTSA complaint #11735932 — an unverified report by a vehicle owner.
SEAT BELTS
Airbag warning symbol on dashboard flashes with or without passenger seated in front seat.
NHTSA complaint #11721073 — an unverified report by a vehicle owner.
SEAT BELTS
The seat belt stopped retracting and no longer works, it was reported directly to the Mazda agency, but the warranty was not valid. The dealer said that the tensioners no longer work and the seat belt needs to be replaced.
NHTSA complaint #11662114 — an unverified report by a vehicle owner.
SEAT BELTS
The contact owns a 2016 Mazda Mazda3. The contact stated that while the vehicle was parked, the driver’s side seat belt became inoperable. The contact stated that the seat belt latch failed to function properly. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.
NHTSA complaint #11656620 — an unverified report by a vehicle owner.
SEAT BELTS
For the seat belt it does not retract back and there was no issue before. It suddenly stopped working and all of the seatbelt is out. This is a safety issue for anyone sitting in the front passenger seat. For the unknown part the button in the trunk to pull the back passenger seats down suddenly stopped working and no issues before then. I’m more concerned with the seat belt because this is a huge safety concern and issue. The seatbelt does not retract at all, leaving it completely extended and unusable. This issue occurred without any prior incident, accident, or external damage—it simply stopped working. This failure poses a serious safety risk, as the seatbelt cannot properly restrain a passenger in case of a sudden stop or crash. I have checked for recalls on my vehicle but found none related to this issue. I request that NHTSA investigate this issue, as it may indicate a manufacturing defect. If necessary, I would also like to request a recall or manufacturer repair program to address this safety concern.
NHTSA complaint #11650943 — an unverified report by a vehicle owner.
SEAT BELTS
Passenger seat belt won’t retract and remains in a locked state.
NHTSA complaint #11603045 — an unverified report by a vehicle owner.
SEAT BELTS
All my seatbuckels are tearing. I thought it could of been my dog, but I a certain I did not give up my seat or let him drive. My driver side is also tearing. I noticed the buckle catching when securing it, and now it has moved past snag and had a quarter inch tear that it catches on. The buckle is not wide enough for the belt. The belt is no longer able to constraint as good as when it was whole. Unknown
NHTSA complaint #11537049 — an unverified report by a vehicle owner.
SEAT BELTS
Mon-7/10/2023 used the car. Tues 7/11/2023 attempted to use my car opened the door on the drivers side-saw a bizarre position of the seat. It had somehow migrated during the night to approx 4” from the steering wheel when I try to get into the seat my chest stomach area is an inch away can’t reach the pedals very well because my right knee is up against the dashboard. Took the car to the dealership the man in charge told me there’s nothing they could do the car is too old. He told me to take it to an independent repair shop to get the parts from junk yard. Said he would have to cut the bolts on the seat track said he couldn’t do that. Please see the photos and video.
NHTSA complaint #11535335 — an unverified report by a vehicle owner.
SEAT BELTS:FRONT:RETRACTOR
The contact owns a 2010 Mazda Mazda3. The contact stated while driving approximately 40 MPH, the contact made an emergency stop. The contact stated that he struck the steering wheel with his chest. Additionally, the seat belt pretensioner failed to operate as needed. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the driver’s side seat pretensioner Part Number: BCY7-57-L90A-01 needed to be replaced. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 69,000.
NHTSA complaint #11516056 — an unverified report by a vehicle owner.
SEAT BELTS
The latches inside the driver's seatbelt receptacle feel like they wear out over time. The only reason I can tell is because there is a really noticeable creaking that develops from inside the receptacle while the seatbelt is connected. This is worse for drivers with bigger waists and as the driver's waist continues to tug on the seatbelt during operation, the creaking gets worse over time. There are no electronic warnings. The seatbelt still properly connects and there are no electronic messages saying that anything is wrong with the seatbelt. My driver's original seatbelt receptacle has already been replaced once under warranty at a Mazda dealership. Now the second seatbelt receptacle is starting to do the same thing again after about 6 months of use. I fear that even if I get it replaced a second time, this will just continue to happen. Perhaps there is a manufacturing defect. As this issue continues to get worse, I fear that this creaking will develop into a major failure with the seatbelt connection itself.
NHTSA complaint #11500412 — an unverified report by a vehicle owner.
SEAT BELTS
I was rear ended while at complete stop by someone going over 40mph on 12/19/22. My airbags did not deploy and my seat belts did not lock out. Directly after being hit my phone flashed a safety fracture malfunction on the dash board and then sent the notification to the mazda app on my phone.
NHTSA complaint #11500455 — an unverified report by a vehicle owner.
SEAT BELTS
On 8/11/2022, my car indicated a message on my dashboard that said “Air Bag System Malfunction. Have the Vehicle Inspected.” I also received a Safety & Security message in my Inbox on my app that stated “Air bag system and seat belt pre-tensioner system malfunction. Vehicle airbags and seat belt pre-tensioner may not operate correctly in an emergency. Have the vehicle inspected by your dealer.” This message was received multiple times. I called the dealer and they weren’t sure what it meant so I took it to them on October 6, I dropped off my car at the dealer. They called me a few hours later and told me that my car was not safe to drive because the airbag and seat belts weren’t working. Fortunately they had a rental for me, however, today is 11/10/2022 and I still don’t have my car back. They stated that it may take up to 6 weeks to get the parts in. And this dealer has never seen anything like this before.
NHTSA complaint #11493145 — an unverified report by a vehicle owner.
SEAT BELTS
Apparently all of sudden the front occupants seat belt had lock and malfunctioning to the point you are unable to pull the belt strap to securely wrapped around the passenger, took it to have it evaluated at the request of the auto maker, supposedly this what I understood from two separate auto repair shops ( Mazda) dealership and a reliable auto repair (Apex) shop stating that a spring loaded system mechanism part was actually missing and that the standard mechanical labor (code) cost for the repair were not (unknown) listed while the other suggested the whole seat belt needed to be replaced I strongly feel this should be a safety related issue for both the driver and passenger seat belts should be recalled and carefully looked into for driver/passenger safety reasons.
NHTSA complaint #11448549 — an unverified report by a vehicle owner.
SEAT BELTS:FRONT:RETRACTOR
Apparently all of sudden the front occupants seat belt had lock and malfunctioning to the point you are unable to pull the belt strap to securely wrapped around the passenger, took it to have it evaluated at the request of the auto maker, supposedly this what I understood from two separate auto repair shops ( Mazda) dealership and a reliable auto repair (Apex) shop stating that a spring loaded system mechanism part was actually missing and that the standard mechanical labor (code) cost for the repair were not (unknown) listed while the other suggested the whole seat belt needed to be replaced I strongly feel this should be a safety related issue for both the driver and passenger seat belts should be recalled and carefully looked into for driver/passenger safety reasons.
NHTSA complaint #11448549 — an unverified report by a vehicle owner.
SEAT BELTS
MOTOR CYLINDER #1 LOW COMPRESSION TOOK IT TO MAZDA THEY COULDNT FIGURE IT OUT AND LESS THAN 20 MILES AFTER THE MOTOR THREW A ROD AT 70,001 MILES TOTAL. CYLINDER 1 WALLS WHERE NOT MADE CORRECTLY
NHTSA complaint #11405847 — an unverified report by a vehicle owner.
SEAT BELTS
I PURCHASED A 2013 MAZDA 3 IN MARCH OR 2020 WITH ABOUT 35000MILES. ABOUT TWO MONTHS LATER I PUT DOWN MY BACK SEATS FOR THE FIRST TIME AND NOTICED THE MIDDLE SEAT BUCKLE WAS FRINGED AND LOOKED CUT ABOUT A HALF OF INCH IN. IT COULD NOT RETRACT DUE TO THE BUCKLE SNAGGING ON THE CUT. IT IS NOVEMBER 2020 AND I HAVE NOW DESCOVERES THAT THIS SAME THING HAS HAPPENED TO THE DRIVER AND FRONT PASSENGER BUCKLES AS WELL. I RARELY HAVE ANYONE IN MY BACK SEAT, MAYBE TWICE SINCE THE PURCHASE, SO THE BUCKLES ARE NOT FREQUENTLY USED. I THINK SOMETHING IS CUTTING THE BELT CAUSING THE BUCKLES TO STOP RETRACTING- RENDERING THEM USELESS. MY CAR HAS 49000MILES NOW. I DISCOVERED ALL OF THE BELTS WHILE STATIONARY. BUT THE DRIVERS ONE WOULD NOT RETRACT CAUSING ME TO LOOK FOR IT.
NHTSA complaint #11376669 — an unverified report by a vehicle owner.
SEAT BELTS
THE DRIER SEAT BELT IS NOT CLICKING AND SENSOR FOR SEAT BELT IS OFF
NHTSA complaint #11270632 — an unverified report by a vehicle owner.
SEAT BELTS
TL* THE CONTACT OWNS A 2018 MAZDA 3. THE CONTACT STATED THAT SHE WAS EXPERIENCING DIFFERENT ELECTRICAL FAILURES WITH THE VEHICLE. THE CONTACT STATED THAT THE PASSENGER SIDE SEAT BELT WARNING CHIME SOUNDED WHEN THE SEAT WAS UNOCCUPIED. THE CONTACT HAD TO BUCKLE THE SEAT BEAT TO STOP THE WARNING SOUND. IN ADDITION, BOTH PASSENGER SIDE WINDOWS FAILED TO ROLL UP AFTER BEING DOWN. ALSO, WHILE DRIVING 40 MPH, THE TRANSMISSION FAILED TO RESPOND WITHOUT WARNING WHILE DEPRESSING THE ACCELERATOR PEDAL. THE CONTACT HAD TO SHIFT THE VEHICLE FROM SECOND INTO FIRST GEAR IN ORDER FOR IT TO RESUME NORMAL OPERATION. THE CONTACT TOOK THE VEHICLE TO ODGES MAZDA AT THE AVENUES (10681 PHILIPS HWY, JACKSONVILLE, FL 32256, (904) 562-1600) WHERE A DIAGNOSTIC TEST WAS PERFORMED, BUT NO FAILURE WAS FOUND. THE FAILURE CONTINUED AND THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 18.
NHTSA complaint #11240844 — an unverified report by a vehicle owner.
SEAT BELTS
TL* THE CONTACT OWNS A 2012 MAZDA 3. THE CONTACT STATED THAT THE DRIVER'S SEAT BELT FAILED TO RETRACT. THE VEHICLE WAS TAKEN TO NELSON MAZDA MURFREESBORO (1214 FORTRESS BLVD, MURFREESBORO, TN 37128) WHERE IT WAS DIAGNOSED THAT AN UNKNOWN PART IN THE SEAT BELT RETRACTOR NEEDED TO BE REPLACED. THE CONTACT WAS INFORMED THAT SHE WOULD HAVE TO PAY FOR THE REPAIR. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 91,000.
NHTSA complaint #11181615 — an unverified report by a vehicle owner.