definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
30,667 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 Sienna accessories - interior problems

accessories - interior problem

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2004 Toyota Sienna Owner Comments

problem #3

Oct 012007

Sienna 6-cyl

  • miles


2004 Toyota Sienna heated seats. Drivers sided heated seat failed right after expiration of our warranty Toyota quoted 800 for repair without any offer of assistance. Passenger side heated seat quit working approximately a year later.

- Marmet, WV, USA

problem #2

May 212010


  • 60,000 miles
I have 2 different complaints. Driver side seat heater burned legs of 3 different drivers before complete failure. Heat was not adjustable. Driver and passenger heaters stopped working at same time. Took to dealer, recommended new heating element ($1000+). opted not to fix. 2nd complaint, check engine, vsc, and trac off lights illuminated. The van has been sent to the dealer on at least 3 occasions. Gas cap has been replaced several times, spark plugs changed. Will go off for brief periods, but always to return. This has been going on for at least 30,000 miles. I could live with the check engine light on, but if the other lights are illuminated, that indicates these components are not working-kind of important-skid control & traction control!! there are many complaints out there on blogs, doesn't look like anyone has filed any reports with your office regarding this same problem, which is too bad because it's obviously a problem not with just Sienna but several other models as well. Extremely frustrating when even the dealer can't determine what the problem really is!! we purchased this vehicle because of the safety features. Not so sure about it if their safety features malfunction!

- Parsons, KS, USA

problem #1

Jan 102007


  • 32,000 miles
Front driver seat heater quit working.

- Fairmont, WV, USA

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