Notes: The Toyota Matrix is the mechanical twin of the Pontiac Vibe.

Both models were a joint GM-Toyota venture, manufactured together at a NUMMI production facility in Fremont, CA. Only the heating & A/C systems are different.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
62,248 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Toyota Matrix exhaust system problems

exhaust system problem

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2003 Toyota Matrix Owner Comments

problem #3

Jun 152010

Matrix 4-cyl

  • 80,743 miles


2003 Toyota Matrix. Consumer states burned out catalytic converter the consumer stated the engine light illuminated to let her know there was a problem and there was also a sulfur smell at times. Updated 10/08/10

- Austin, TX, USA

problem #2

Mar 072008


  • Manual transmission
  • miles
I bought a used 2003 Toyota Matrix in may of 2007. Because it had the Toyota name on it, I assumed it would be a quality car - wrong! now it is March 2008, less than one year after I bought the car. I have already had to spend almost $1000 to replace the clutch (an item I have never had to replace in any car I've owned). Now the catalytic converter is burning up. I went to the dealer & they said the repair would be $1700, but they would be willing to pay for half of it - still leaving me to pay $850 for a part that I should not have to be replacing at 90K miles. After going home & doing some research, I found that the catalytic converter fails in virtually every 2003 & 2004 Matrix, but Toyota does not want to do the respectable thing - issue a recall!!! I did not expect to be spending $2700/year in repairs (outside of regular maintenance) for a Toyota - the reputation is really undeserved.

- Knoxville, TN, USA

problem #1

Sep 012007


  • Manual transmission
  • 106,000 miles
My husband, william palmer-taylor, bought our 2003 Toyota Matrix in the boston, MA area before joining me in California. Because of a programming failure, the 2003 Toyota Matrix (izz-fe engine) catalytic converter burns out early emitting a noxious sulfur dioxide odor. The problem is probably more of finances than health (the repair cost is $1200 at least). Toyota is aware of this, evidenced by tsb issued 10/8/04, ego26-04. However, no recall has been in effect and the consumer is at risk. The warranty on the catalytic converter ends at 80,000 miles. Mine burned out at 100,000. Toyota has refused any accountability. They should be accountable for at least the part and reprogramming of this.

- Philo, CA, USA

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