1999 Mazda Millenia problems & reliability
27 owner complaints filed with NHTSA for the 1999 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).
Federal crash records (FARS 2020–2023): 1999 Mazda Millenia vehicles were involved in 2 fatal crashes with 2 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 | 5 | 19% |
| Engine and Engine Cooling | 5 | 19% |
| Power Train | 5 | 19% |
| Tires | 5 | 19% |
| Unknown OR Other | 3 | 11% |
| Air Bags | 2 | 7% |
| Structure | 2 | 7% |
| Vehicle Speed Control | 2 | 7% |
| Equipment | 1 | 4% |
| Latches/locks/linkages | 1 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“1999 mazda millennia. Consumer states sudden increase of speed *tgw the consumer stated the problem with the sudden increase in speed occurred when the cruise control was activated. *jb the consumer stated several years ago, mazda issued notices to its dealers identifying the problem, but didn't offer a resolution and…”
Vehicle Speed Control · filed May 26, 2010
“Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) hello: my wife's 1999 mazda millennia s [xxx] is another vehicle having acceleration problems that the company has refused to repair throughout our ownership of the auto. We purchased the mazda from university ford/mazda in…”
Unknown OR Other · filed Mar 9, 2010
“I took the car into a tire dealership to have the 17 inch, chrome wheels checked for slow tire deflation and the company told me that all the wheels were severely corroded and that they would eventually fail structurally which could cause an accident. The are the oem wheels that came with the original purchase. There…”
Wheels · filed Apr 4, 2009
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
94 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1999 Mazda Millenia. The 10 most recent:
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
Accessory instructions can be found on OneMazda under Dealer Resources - Parts & Accessories.
SA-014-22 · Service Bulletin/Repair Instructions · issued Mar 29, 2022
The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use the following test procedures in this…
01-003/22 · Service Bulletin/Repair Instructions · issued Mar 17, 2022
Battery Maintenance: 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…
01-006-21-3779b · Service Bulletin/Repair Instructions · issued Dec 21, 2021
Automatic Transmission/Transaxle Cooler and Lines Flushing Procedure: Automatic Transaxle/Transmission (A/T) oil cooler and lines must be power flushed completely before an overhauled or replacement A/T is installed…
05-002-21-3854 · Service Bulletin/Repair Instructions · issued Dec 8, 2021
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…
01-006-21-3779a · Service Bulletin/Repair Instructions · issued Aug 24, 2021
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 1999 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 1999 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.