Problems · NHTSA complaints
2000 Mazda Millenia problems
Owners filed 19 complaints about the 2000 Mazda Millenia with NHTSA between Sep 2000 and Jun 2012. The most-cited component is engine and engine cooling (7).
Complaints
19
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine and engine cooling7
- Electrical system5
- Equipment3
- Fuel system, gasoline3
- Power train3
- Latches/locks/linkages2
- Steering2
- Suspension2
- Structure2
- Service brakes, hydraulic1
- Visibility1
- Seats1
- Other / unknown1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 8, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
2
1
3
4
4
1
2
1
0
0
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 3 |
| 2003 | 4 |
| 2004 | 4 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 0 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine and engine cooling
7 reports
“BEFORE OUR FACTORY WARRANTY WAS UP THE DEALERSHIP FIXED OUR CATALYTIC CONVERTER 3 TIMES. AFTER OUR EXTENDED WARRANTY WAS UP WE IN THE LAST 6 MONTHS HAD TO FIX BOTH UPPER CAMBER ARMS, DRIVER SIDE AXEL, TIRE ROD ENDS ON BOTH SIDES, DRIVER SIDE WHEEL BEARINGS, AND NOW JUST YESTERDAY WE BROKE DOWN. THE BELT PULLEY TENSIONER WENT. THE MAZDA PARTS CO. HAD TOLD ME THAT THEY HAD THIS PART IN STOCK ABOUT 10 MINUTES AGO BUT SOLD IT. THIS IS A $300.00 PART AND THE MAINTNENCE IS ABOUT $500.00 TO HAVE THEM FIX IT. I DON'T UNDERSTAND WHY THERE HASN'T BEEN ANY RECALLS ON THIS VEHICLE. THE TRADE IN VALUE ISN'T EVEN WHAT WE OWE ON THE CAR. WE STILL HAVE 2 1/2 YEARS OF PAYMENTS. THE CAR WAS BURNING SOMETHING BUT THERE WAS NO FIRE. IT WAS THE BELT FALLING OFF WHILE I WAS DRIVING. *NM”
Electrical system
5 reports
“WHILE VEHICLE WAS PARKED REAR WINDOW SIMPLY EXPLODED OUTWARD. ALSO, MOTORS FOR THE TWO FRONT DOORS STOPPED WORKING PROPERLY. NEXT, THE HORN AND THE ALARM SYSTEM STOPPED FUNCTIONING AS WELL. *AK VEHICLE'S WARRANTY NOW EXPIRED, AND MAZDA WON'T ACKNOWLEDGE PROBLEM. *LA”
Equipment
3 reports
“WE OWN A 2000 MAZDA MILLENIA THAT STALLS AT ABOUT 50 MPH AND HAS HAD THIS PROBLEM SINCE WE BOUGHT THE CAR. WE HAVE TAKEN THE CAR IN FOR SERVICING NUMEROUS TIMES, BUT HAVE NOT BEEN ABLE TO GET THIS FIXED. THE CAR HAS SEVERAL OTHER PROBLEMS SUCH AS: KEYLESS ENTRY DOES NOT WORK, HEATED SEATS DO NOT WORK, AIR CONDITIONER DOES NOT WORK; HOWEVER, NONE OF THESE POSE A SAFETY PROBLEM LIKE THE STALLING. THE ENGINE LIGHT REMAINS ON EVEN AFTER NUMEROUS ATTEMPTS BY THE DEALERSHIP SERVICE DEPARTMENT TO REPAIR THIS PROBLEM. *JB”
Fuel system, gasoline
3 reports1 crash
“LAST YEAR MY CAR STARTED TO EMIT GAS FUMES AS SOON AS I STARTED TO DRIVE IT. AFTER DRIVING FOR A FEW MINUTES THE SMELL WENT AWAY. I HAVE TAKEN IT TO THE DEALER MANY TIMES. EACH TIME THEY TOLD ME IT WAS A SENSOR WHICH COST ME THREE- FOUR HUNDRED DOLLARS. HOWEVER THE PROBLEM HAS NEVER STOPPED. *JB”
Power train
3 reports
“CONSUMER EXPERIENCED MULTIPLE PROBLEMS WITH THIS VEHICLE AND DEALER WAS AWARE OF THEM. WHILE DRIVING THE HOOD UNEXPECTEDLY OPENED. THIS CAUSED THE WINDSHIELD TO SHATTER. CONSUMER WAS ABLE TO MAINTAIN CONTROL OF THE VEHICLE, AND PULLED OVER. WHILE SHIFTING CONSUMER NOTICED THAT THE GEARS ENGAGED SLOWLY, THEN HESITATED. THEN, A WINDING SQUEAKING NOISE WA HEARD COMING FROM THE TRANSMISSION, AND TRANSMISSION LIGHT APPEARED ON THE DASHBOARD AND REMAINED ON. WHILE APPLYING THE BRAKES AT ANY SPEED BRAKE PEDAL WENT TO THE FLOOR. ABS BRAKING LIGHT APPEARED, AS WELL. CONSUMER TOOK VEHICLE TO DEALER MORE THAN ONE OCCASION, BUT PROBLEM RECURRED. *AK”
Latches/locks/linkages
2 reports
“THE FIRST TIME I HAD A PROBLEM WITH THE DOOR LOCKS THE L/R DOOR WOULD NOT OPEN. AFTER SOME TIME I WAS ABLE TO OPEN THE DOOR BY MANUALLY HOLDING THE UNLOCK BUTTON WHILE PULLING ON THE DOOR HANDLE. A FEW MONTHS LATER THE R/R DOOR WOULD NOT UNLOCK. I COULD NOT UNLOCK THE DOOR FROM EITHER INSIDE OR OUTSIDE, THIS MAKES 2 DOORS INOPERABLE. SOME TIME LATER,THE R/F DOOR WON'T UNLOCK OR OPEN FROM OUTSIDE. THE R/F DOOR CAN BE OPENED BY HOLDING UP ON THE UNLOCK BUTTON AND PULLING ON THE INSIDE DOOR HANDLE . THIS MAKES 3 DOORS DOWN, ALSO, DOOR LOCKS MAKE A WHINING NOISE, WHAT A DEATH TRAP. I AM 72 YEARS OLD AND I HAVE NEVER IN MY LIFE SEEN ANYTHING LIKE THIS. I WAS TOLD THAT REPAIR COST WOULD BE ABOUT 350.00 PER DOOR. THANK YOU. *JB”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.