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:
87,000 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.

2004 Toyota Matrix exhaust system problems

exhaust system problem

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2004 Toyota Matrix Owner Comments

problem #1

Dec 062008


  • 87,000 miles


My 2004 Toyota Matrix at 87,000 now needs a new catalytic converter. The check engine light came on and I took it in to be diagnosed. P0420 was the code. Warranty for this part is for 80,000 miles. The cost to replace this part is $1300 by the dealer. A new Toyota replacement catalytic converter is being installed today. My mechanic states that this is a known problem with toytoa matrixes and that Toyota should be replacing these. I keep my cars for a really long time (last car 310,000 miles) and have never had to replace a catalytic converter. This is not a part that should need replacing at 87,000 miles. I am so disappointed in the so called reliability of Toyota's and really disappointed in their customer service. I called and submitted a complaint to toyotausa and was basically told that this was obviously not a problem or Toyota would have recalled these already. Obviously, Toyota does not keep track of their customer maintenance records and complaints or they would know that this is a chronic issue on 2003-2004 matrixes.

- Cary, NC, USA

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