2014 Mazda MAZDA3 problems & reliability
138 owner complaints filed with NHTSA for the 2014 Mazda MAZDA3, alongside 4 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
4 complaints report injuries (5 injured).
Federal crash records (FARS 2020–2023): 2014 Mazda MAZDA3 vehicles were involved in 36 fatal crashes with 20 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System → | 27 | 20% |
| Unknown OR Other | 27 | 20% |
| Service Brakes → | 22 | 16% |
| Fuel/propulsion System → | 21 | 15% |
| Engine → | 13 | 9% |
| Back Over Prevention → | 11 | 8% |
| Vehicle Speed Control | 9 | 7% |
| Parking Brake | 8 | 6% |
| Power Train | 7 | 5% |
| Seat Belts | 5 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 36,894 miles (middle 50% between 17,000 and 70,000 miles), based on 82 complaints that included mileage.
Complaints by incident year
What owners report
“The contact owns a 2014 Mazda Mazda3. The contact stated that when attempting to secure the vehicle, the electric parking brake failed to engage after pulling up the hand lever. The contact related the failure to NHTSA Campaign Number: 17V393000 (Parking Brake); however, the VIN was not included in the recall. The…”
Parking Brake · filed Jul 9, 2026
“The fuel tank leaks fuel at a full tank and smells of gas in the cabin until about 3/4 tank. Car was dripping a large puddle of gas inside of a parking garage. Problem has been reproduced by my mechanic even after replacing the fuel pump retaining ring. It has not been inspected by the manufacturer or police. CEL did…”
Fuel/propulsion System · filed Jun 14, 2026
“The contact's nephew owns a 2014 Mazda Mazda3. The contact stated that while parked on several occasions, the parking brake failed to engage, and there was no resistance. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 72,000.”
Parking Brake · filed Jun 12, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
881 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2014 Mazda MAZDA3. The 10 most recent:
Supersession between B60S-34-300G/350G and B60S-34- 300H/350H. Please be advised that the G-level and H-level control arms are not interchangeable. The G-level part cannot be used to repair a vehicle built with the…
PF-26-02 · Other · issued Jul 28, 2026
This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s)…
SA-041-26 · Service Bulletin/Repair Instructions · issued Jun 19, 2026
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the…
01-008-26 · Service Bulletin/Repair Instructions · issued May 1, 2026
DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the…
SA-031-26 · Service Bulletin/Repair Instructions · issued Apr 30, 2026
This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance…
SA-029-26 · Service Bulletin/Repair Instructions · issued Apr 21, 2026
This Service Alert supersedes the previously issued SAs and bulletin(s) listed below: The changes are noted below in red. SA-010/23 02/09/23 DESCRIPTION Some customers may experience one or more electrical malfunctions…
SA-021-26 · Service Bulletin/Repair Instructions · issued Apr 4, 2026
There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method • B. Auxiliary Key Code Cut Method 2019 and newer models require a 10-digit key code to accurately cut keys •…
SA-005-26 · Service Bulletin/Repair Instructions · issued Jan 26, 2026
Some customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter may be found to be wet.
SA-001-26 · Service Bulletin/Repair Instructions · issued Jan 5, 2026
If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been…
SA-061-25 · Service Bulletin/Repair Instructions · issued Dec 17, 2025
A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C…
07-004-25a · Service Bulletin/Repair Instructions · issued Dec 10, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2014 Mazda MAZDA3 has 4 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2014 Mazda MAZDA3?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 36,894 miles — budget accordingly if the car is approaching that mileage.