2001 Mazda Millenia problems & reliability
29 owner complaints filed with NHTSA for the 2001 Mazda Millenia. 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.
1 complaint report injuries (1 injured).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine and Engine Cooling | 7 | 24% |
| Power Train | 7 | 24% |
| Air Bags | 4 | 14% |
| Visibility | 4 | 14% |
| Vehicle Speed Control | 3 | 10% |
| Steering | 2 | 7% |
| Tires | 2 | 7% |
| Wheels | 2 | 7% |
| Exterior Lighting | 1 | 3% |
| Fuel/propulsion System | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 13 reported components →Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“The vehicle was stationary on a city street. Started the vehicle, foot on the brake and shifted into drive.vehicle was idling at normal rpm. When the foot was removed from the brake petal, the car lurched forward at full throttle. My foot never touched the gas pedal. It traveled about 10 feet striking a vehicle. I was…”
Power Train · filed Feb 25, 2020
“My mechanic, mojarro auto repair, ordered from autozone this part....when it arrived, realized it didn't at all resemble the part that his diagnostic tool stated was the problem. Jesse, found 1 at a wrecking yard. In 3 days the check engine light came on, again. I phoned detroit, michigan....gave them the vin & part's…”
Air Bags · filed Feb 14, 2020
“Tl* the contact owns a 2001 mazda millenia. The contact stated that while attempting to engage the brakes, the engine stalled. The vehicle was towed to an independent mechanic. The technician diagnosed that the timing belt needed to be replaced. The dealer was not contacted. The manufacturer was not made aware of the…”
Engine and Engine Cooling · filed Nov 14, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
106 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2001 Mazda Millenia. The 10 most recent:
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…
07-004-25 · Service Bulletin/Repair Instructions · issued Apr 25, 2025
In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer’s…
09-038-24 · Service Bulletin/Repair Instructions · issued Aug 8, 2024
Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop…
SA-011-24b · Service Bulletin/Repair Instructions · issued Jul 29, 2024
Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop…
SA-011-24a · Other · issued Jun 7, 2024
Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop…
SA-011-24 · Service Bulletin/Repair Instructions · issued Feb 12, 2024
Speedometer replacement procedure
09-016-23 · Service Bulletin/Repair Instructions · issued Feb 28, 2023
Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the…
02-004-22a · Service Bulletin/Repair Instructions · issued Nov 18, 2022
In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer.
09-024-22 · Service Bulletin/Repair Instructions · issued Jul 18, 2022
This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost…
01-006-22 · Service Bulletin/Repair Instructions · issued Jun 22, 2022
Some customers may complain of signs of oil on the struts or shock absorbers. In most cases the oil that is present is normal, and a result of the oil that remains on the shaft during the normal sweeping process of the…
02-004-22 · Service Bulletin/Repair Instructions · issued May 24, 2022
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
No NHTSA recall campaigns name the 2001 Mazda Millenia in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
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 2001 Mazda Millenia?
- · 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.