Which parts fail
Components named in complaints (front, side and curtain air bags, sensors and inflators).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2008 Mazda Mazda3 owners, lightly cleaned up (personal details are redacted by NHTSA).
My son purchased a new 2008 Mazda 3 in late July 2008. Last Saturday he slid on ice and hit a tree head on at approximately 30 MPH and none of the air bags deployed. The car has roughly 7000 miles on it. The initial estimate for repairs is $9100. I contacted Mazda at [phone] (daniel) to try and determine why the air bags didn't deploy and was told that Mazda doesn't send an investigator out and I should contact my insurance company to determine why the air bags didn't deploy. My insurance company (farmers) tells me that they don't investigate unless there is reason to go after the manufacturer to help with medical expenses incurred due to the accident. I need to know why the air bags didn't work so the problem is corrected rather than just assume that they will next time. My son suffered whiplash to his neck and back and a strain to his left shoulder from the seat belt. …
#1 air bag warning dash light remains illuminated and has stayed illuminated for approximately 1 1/2+ years. There is no Mazda dealership in my area and I initially believed it was my responsibility to replace or repair at my expense due to the vehicle's age. #2 brakes: vehicle was recently serviced and comprehensive safety inspected on 6 nov 2018. I asked the shop to check the brake pedal for abnormal pressure. I felt the brake pedal was not maintaining a firm pedal push while driving, but at first felt firm then softened almost all the way to the floor board. I returned to the auto service to point this out and the representative responded no evidence of brake fluid leaking out and earlier while they drove it around their facility it felt fine, therefore it was OK to drive like this. Today is 3 December and it is still a mushy brake.
Tl* the contact owns a 2008 Mazda Mazda3. While driving approximately 25 MPH, the vehicle increased acceleration independently and crashed into a utility pole. The contact sustained injuries to the knee and neck area. The air bags failed to deploy. The vehicle was towed to an independent mechanic. A police report was filed of the incident. The acceleration also occurred on a separate occasion however the vehicle came to a stop when the brakes were engaged. The manufacturer was not notified of the malfunction. The approximate failure mileage was 13,000. The VIN was unavailable.
While driving on the freeway at 75 MPH, tried to avoid a vehicle that was unsafely changing lanes. Pushed brakes and veered towards left. The brakes (which are not ABS) responded slowly and I slammed in the middle divider. A couple month before the accident the dealer had the rotors resurfaced since the car was shaking vigorously while braking at high speeds. Also the air bags did not deploy during the accident. Took car to a mechanic and the mechanic was amazed that based on the visual frontal damage to the car the air bags did not deploy.
Tl* the contact owns a 2008 Mazda Mazda3. The contact was driving approximately 32 MPH when she attempted to avoid an animal. The contact steered to the left but the vehicle instead violently veered to the left causing her to crash into an embankment. The vehicle proceeded to roll over once crashing and the air bags did not deploy. The contact sustained head injuries as a result. A police report was available. The vehicle was destroyed. The VIN was unavailable. The approximate failure mileage was 10,000.
Tl contact owns a 2008 Mazda, Mazda3. The contact was involved in a crash when someone ran them off the road and caused the vehicle to roll over and go into the bottom of a ravine. The contact was not injured, but was concerned since the air bags did not deploy. The vehicle was destroyed. The contact stated the vehicle was not inspected to see why the air bags did not deploy. The failure mileage was 55,000.
Tl contact owns a 2008 Mazda, Mazda3. The contact stated that while driving approximately 55 MPH, the vehicle hit a washboard and rolled down a hill. The air bags did not deploy and the seat belts loosened. The contact sustained neck and back injuries. A police report was filed. The VIN was unavailable. The failure mileage was approximately 40,000.
Turning left on a t junction when some one ran a red light and crashed into my driverside front and rear doors. The hit was hard enough to pin the steering wheel with the smashed in door, but the side airbags did not go off. No corrective action was taken as the vehicle was titled as a total loss.
I was involved in a four car collision. I was third in line, and was hit really hard from behind and then hit the car in front of me. My air bags did not deploy and my seat belt did not lock. I slammed into the steering wheel and busted my forehead open.
Tl* the contact owns a 2008 Mazda 3. While driving at an unknown speed, the air bag warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 40,000.
Airbag complaints in other Mazda3 years
Frequently asked questions
How common are airbag problems on the 2008 Mazda Mazda3?
NHTSA has 22 complaints about the air bags of the 2008 Mazda Mazda3, 7% of the model year's 303 complaints. The component named most often is frontal (2 mentions).
Is there a recall for 2008 Mazda Mazda3 airbag problems?
No. NHTSA lists no air bags recall for the 2008 Mazda Mazda3, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2008 Mazda Mazda3 airbag problems start?
Half of the complaints with a recorded mileage happened before about 56,000 miles, and 30% before 25,000 miles.
Is it dangerous?
Owners linked 12 crashes, 0 fires and 11 injuries to air bags problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.