2003 Toyota Matrix Engine Problems
- Complaints
- 8about this part
- Share
- 3%of 268 total for the year
- Median mileage
- 128,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the engine of the 2003 Toyota Matrix, 3% of the 268 complaints for this model year. Where a mileage was given, the median is 128,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was exiting on a ramp from the highway. I stopped the car before coming off the ramp on an incline when the engine suddenly revved up with my foot on the brake. I immediately put the shifter in neutral and it returned to normal rpms. This is the second time that this has happened in three weeks.”
NHTSA complaint #10561262, filed 2014-01, 34,000 miles“I have received several different recall notices from Toyota regarding this vehicle. I have also had several problems with the vehicle since purchasing it. It is currently not running at all and immediately after I paid the vehicle off, things like door handles and interior fixtures began breaking off. I work full time and have a very strict budget which does not allow me to take time off of work to have to take my car to the dealership with every recall notice I have received. I just want my money back. …”
NHTSA complaint #10566685, filed 2014-03, 16,600 miles“I was approaching a stop light and all of a sudden the engine started to accelerate; this has never happened before. I pressed on the brake as hard as I could but the brake wouldn't go all the way down and it was very stiff. Since I was going slow I was able to get the car to stop but the engine was revving as if I had the gas pedal to the floor. I decided to put the car in neutral so it wouldn't accelerate while I was at the stop light (the whole time the engine is revving to its max and the brake was stiff; I also used the hand brake. …”
NHTSA complaint #10640815, filed 2014-10, 182,000 miles“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.”
NHTSA complaint #10905985, filed 2016-09, 107,000 miles“The contact owns a 2003 Toyota Matrix. While driving at 35 MPH, a very loud noise emitted from the engine. The contact stated that the vehicle was towed to an independent mechanic for diagnostic testing. The results of the diagnostic were unknown, but the vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 112,000. Ma 10/14 updated 10/19/2017”
NHTSA complaint #10724619, filed 2015-06, 112,000 milesRelated service bulletins
- 10164330Jul 1, 2019TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections…
- 10149217Sep 14, 2016TSB: Supersession Notice. Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are…
- 10134128Jan 15, 2015TSB: Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix…
- 10096036Jan 15, 2015"tsb: flash reprogramming allows the ecu software to be updated without replacing the ecu. Flash calibration updates for specific vehicle models/ecus are released as field-fix…
- 10132812May 1, 2014Tech Tip: Low battery voltage can contribute to a MIL "ON" condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340 (Camshaft Position Sensor Circuit) due to…
Engine: other model years
Other parts of the 2003 Toyota Matrix
83 complaintsAir bags
57 complaintsEngine cooling
25 complaintsVehicle speed control
21 complaintsBrakes
17 complaintsElectrical system
12 complaintsBody and structure
12 complaintsOther or unknown
11 complaintsVisibility (wipers, defrost, mirrors)
10 complaintsSteering
8 complaintsFuel system
7 complaintsSeat belts
6 complaints
← All problems reported for the 2003 Toyota Matrix
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology