Problems · NHTSA complaints

2003 Toyota Matrix problems

Owners filed 268 complaints about the 2003 Toyota Matrix with NHTSA between May 2002 and Dec 2018. The most-cited component is power train (83).

Complaints
268
Filed with NHTSA
Crashes
19
Reported by owners
Fires
3
Reported by owners
Injuries
22
People reported injured
Deaths
1
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train83
  2. Air bags57
  3. Engine and engine cooling25
  4. Vehicle speed control21
  5. Service brakes, hydraulic13
  6. Electrical system12
  7. Structure12
  8. Visibility9
  9. Engine8
  10. Steering8
  11. Seat belts6
  12. Tires6
  13. Equipment5
  14. Interior lighting5

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 Oct 28, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
200214
200330
200428
200514
200611
20078
200821
200921
201033
201115
20127
20135
201412
201534
20169
20172
20184

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.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Power train

83 reports
“TL* THE CONTACT OWNS A 2003 TOYOTA MATRIX. WHILE DRIVING, THE CHECK ENGINE SENSOR INDICATOR ILLUMINATED AND THE VEHICLE EXPERIENCED HARD SHIFTING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE ECM WAS FAULTY. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 107,000.”
Owner complaint to NHTSAFiled Sep 13, 2016Power train, EngineODI 10905985

Air bags

57 reports10 crashes1 fire
“TL* THE CONTACT OWNED A 2003 TOYOTA MATRIX. WHILE DRIVING APPROXIMATELY 50 MPH, THE CONTACT REAR ENDED ANOTHER VEHICLE. THE FRONT END OF THE CONTACT'S VEHICLE WAS SEVERELY DAMAGED, BUT THE AIR BAGS DID NOT DEPLOY. THE DRIVER SUSTAINED AN INJURED CHEST AND SHOULDER, WHICH REQUIRED MEDICAL TREATMENT. THE VEHICLE WAS DESTROYED AND TOWED. A POLICE REPORT WAS FILED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 190,000.”
Owner complaint to NHTSAFiled Dec 7, 2018Air bagsCrash reportedODI 11156847

Engine and engine cooling

25 reports1 crash
“I WENT TO THE TOYOTA DEALER TO HAVE MY CHECK ENGINE LIGHT CHECK AND FOUND OUT THE I NEED TO REPLACE MY CATALYST CONVERTER AND ECU REPLACE. DEALER SAYS THAT I NEED TO PAY $3000 PLUS TAX. THE REASON WHY I NEED TO REPLACE THE CATALYTIC CONVERTER AND THE ELECTRONIC CONTROL MODULE BECAUSE THEY HAVE A NEW MODULE. I OWN MY CAR SINCE 2003. THIS IS TOYOTA'S FAULT, I SHOULD BE INFORM WHEN A NEW MODULE COMES OUT IN THE MARKET AND I SHOULD NOT HAVE TO PAY FOR THAT. THIS IS A SAFETY HAZZARD. IF I DON'T GET IT FIX, MY CAR WILL NOT START AND I AM NOT ABLE TO RENEW MY TAB BECAUSE OF THE CHECK ENGINE LIGHTS. *TR”
Owner complaint to NHTSAFiled Apr 17, 2013Engine and engine coolingODI 10508558

Vehicle speed control

21 reports3 crashes
“I WAS SLOWLY PULLING INTO MY GARAGE (IN THE BASEMENT OF MY HOUSE), GRADUALLY BRAKING AS I HAD DONE MANY TIMES BEFORE. I WAS STOPPING THE VEHICLE IN ITS USUAL POSITION WHEN THE ENGINE SUDDENLY BEGAN RACING AND THE CAR ACCELERATED FORWARD. IT STRUCK SOME SHELVES I HAD AGAINST THE WALL OF THE GARAGE, CRUMPLING BOTH THE SHELVES AND THE FRONT OF THE CAR'S HOOD. EVERYTHING HAPPENED SO FAST AT THAT POINT THAT I AM NOT SURE JUST WHAT HAPPENED, BUT I ENDED UP WITH THE CAR STOPPED UP AGAINST THE GARAGE WALL AND THE CAR IN PARK. I BELIEVE I THREW IT INTO NEUTRAL, THEN APPLIED THE BRAKE SINCE IT WAS STILL MOVING, THEN TRIED TO BACK UP, AND FINALLY PUT IT INTO PARK. THE CAR WAS DECLARED A TOTAL LOSS BY MY INSURANCE COMPANY. I EXPERIENCED THE SAME PROBLEM OF SUDDEN ACCELERATION WHEN STOPPING SEVERAL TIMES PREVIOUSLY, BUT NONE OF THOSE INCIDENTS CAUSED ANY DAMAGE. IN EACH OF THOSE SITUATIONS I WAS ABLE TO GET THE CAR INTO NEUTRAL, STOP IT WITH THE BRAKE, AND CONTINUE ON MY WAY. IN THIS INSTANCE THERE WAS NOT ENOUGH SPACE AHEAD OF ME TO DO THAT SUCCESSFULLY. I KNOW THAT A NUMBER OF INCIDENTS OF UNINTENDED ACCELERATION OF A TOYOTA MATRIX HAVE ALREADY BEEN REPORTED FOR A NUMBER…”
Owner complaint to NHTSAFiled Jul 31, 2015Vehicle speed control, Service brakes, Fuel/propulsion systemCrash reportedODI 10745479

Service brakes, hydraulic

13 reports3 crashes1 fire
“TL* THE CONTACT OWNS A 2003 TOYOTA MATRIX. THE CONTACT WAS DRIVING 40 MPH WHEN THE BRAKES WERE APPLIED AND THE VEHICLE SPUN AROUND FOUR TIMES. THE CONTACT STATED THAT THE GROUND WAS DRY AND THERE WERE NO ROAD HAZARDS. THE CONTACT MERGED ONTO THE SHOULDER FOR ABOUT TWENTY MINUTES AND THEN DROVE HOME. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS NOTIFIED AND A CLAIM WAS FILED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 24,000. UPDATED 09/27/11 *BF THE CONSUMER STATED SHE APPLIED THE BRAKE VERY LIGHTLY AND THE VEHICLE WENT OUT OF CONTROL. IT APPEARED EITHER THE BRAKE LOCKED OR THE ACCELERATOR LOCKED. UPDATED 09/30/11”
Owner complaint to NHTSAFiled Sep 9, 2011Steering, Service brakes, hydraulicODI 10424509

Electrical system

12 reports1 fire
“TL* THE CONTACT OWNS A 2003 TOYOTA MATRIX. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE LOST POWER AND STALLED WITHOUT WARNING. THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. PRIOR TO THE FAILURE, WHEN THE VEHICLE WAS STARTED, AN ABNORMAL KNOCKING SOUND EMITTED FROM UNDER THE HOOD OF THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 171,580.”
Owner complaint to NHTSAFiled Apr 25, 2016Electrical system, EngineODI 10861329
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.