Hi folks. My first post. Yup, odometer got to 299,999 and quit. Trip odometer works just fine. Wondering if this is an electronics problem (bad module)? Or a mechanical issue? I'm reluctant to take it to the dealership...smells like a big money fix for a relatively minor issue. Anyone got any suggestions? Thanks in advance for the help!! Markham

I don't have a Matrix, so I am assuming it's a mechanical odo. If it is, then all the nines have to push over the 2 to a 3 and I am guessing something involving dirt is stuck in the gears.
Next to insurance/legal reasons, it should not cause a problem. Any dealer is just going to replace the entire thing. Once again, I don't know how involved that is on the Matrix.
If you have some tools, a service manual, and a bit of luck, I bet you can take it apart and clean the dirt out.

The other issue could be that the odo just does not go any higher. (IMG:style_emoticons/default/tongue.gif) Sell it and buy a new one.

Unfortunately, the odometer is digital. And I wouldn't care but I use the car for business and REvenue Canada requires you to keep a log and note the beginning and end mileage of trips. My guess is that a module went on the fritz....just need some guidance as to which one and how to replace it without having to take the dash apart. Thanks for the post.

I too have had my Odometer stop at 299,999. what has been your solution since your last post?

Nothing. I was hoping someone on this forum would have a solution. I'm reluctant to take the car to a dealership....I can just imagine the size of that bill!! Anybody out there got a diagnosis or a fix for this problem?

I called a few dealerships, they have not heard of any problems yet, Petes Perfermance in San Diego did some research for me(I was impressed that they went that far), they said the parts dept at a dealer wasn't getting any requests for that problem, but did suggest to bring it in for a diag(about $90.00). Maybe the Odometer or computer is to blaim. I too am reluctant to spend the$. Petes did say that if we were the first to find this error, Toyota should refund the money with a reciept shown. until then I'm keeping my 2nd trip intact to monitor mileage.