If there’s any one brand I’ve seen while shopping for cars on Facebook Marketplace with the most cars showing over 300,000 miles, it’s Toyota. The Japanese automaker’s reputation for reliability wasn’t built overnight; it came from decades of cars that, with the right maintenance, could easily go hundreds of thousands of miles without a major breakdown.
I’ve been looking at 100-Series Land Cruisers for sale recently, and it seems like anything remotely in my price range (ideally $7,000 or less) is near or above 300,000 miles. While that might scare some people, I’m not really worried, since with the right owner, these SUVs can make it well past that.
It’s ironic, then, that a handful of Toyota models from the mid-2000s have a glitch in their digital odometers that stops them from displaying over 299,999 miles. As time has gone on, and more of these cars are driven over 300,000 miles, more owners are starting to realize that there’s no easy fix.
Why Does This Happen?
According to ProSpeedo, a Calgary-based repair shop that specializes in meter repair, the fault lies in the erasable programmable read-only memory (EPROM) microchip that houses the data. The chip will register mileage past 299,999 miles, but it stops short of actually getting that data to the cluster. From its website:
It will register in the EPROM past 300,000 but it will not display in cluster anything over the 299,999. So to answer the question yes! On some it is designed in the flash file to stop at 299,999, and will not display in the digital readout anything after that point. Again let me repeat this, some Toyotas will not let the digital readout display anything after 299,999, it will register in the EPROM but will not display on cluster.
There’s much debate online about whether this was an intentional design feature or simply an unforeseen glitch that Toyota engineers missed in development. Toyota couldn’t provide any info when I asked about this quirk. The only “official” claim I can find pointing to it being done on purpose comes from a 2018 Reading Eagle article, in which a reader claims Toyota Canada told them it was a design feature, not a fault.
The problem is even worse for owners whose cars display distance driven in kilometers. Because the fault lies specifically with how the numbers are displayed, and not the actual miles driven, when someone gets to 299,999 kilometers, their odometer will freeze, too, as the video above shows. At least when you’re dealing with miles, 300k is a pretty lofty distance for most cars. But 186,000 miles? Most normal cars will do that in their lifetime.
Either way, Toyota never issued a technical bulletin or a recall for the issue, which means owners are on the hook for dealing with it.
Which Cars Are Affected, And What’s The Fix?
The vehicles affected by this weird odometer glitch include the first-generation Prius, second-generation Prius models built from 2004 to 2005, Toyota Corollas and Matrixes built from 2003 to 2008, and Pontiac Vibes built from 2003 to 2008 (the Vibe is just a reskinned version of the Matrix). In other words, a bunch of vehicles that are known for being able to go many, many miles before needing major repair work.
Sadly, no one’s figured out a way to reprogram the cluster to work properly. Drivers of the above cars have three different avenues for a “fix,” none of which are particularly straightforward.
Why did this Carrolla stop at 299,999. It’s been like this for 10 years. Probably another 150k on it since then.
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u/Patotb13 in
Toyota
The most “official” option is having the cluster replaced with a new, zero-mile example from Toyota at a dealership, usually for $500-$700, going by people online who have had the work done. This resets the odometer to zero, which means the owner still has to keep track of the total mileage and disclose the odometer swap when it comes time to sell.
If you want to save some cash, you can also have your current odometer reset to zero by a repair shop. This costs a bit less—around $200 at ProSpeedo, plus the shipping cost to get your cluster to and from their shop. Like option 1, you have to keep track of total mileage and disclose actual miles to the new owner, should you decide to sell. Here’s a video of the process:
You could also just do nothing and continue driving without the use of an odometer. To track mileage, owners report using the car’s trip meter—which is unaffected by the glitch—to track mileage and time oil changes. Like the above solutions, you still have to track total mileage and disclose it if you want to sell. In this case, you also have to check the “exceeds mechanical limits” box on the car’s title when you sign it over to the new owner.
Having to manually track mileage on your car isn’t a huge pain, but it’s definitely less convenient than simply glancing down at the gauge cluster to see the total miles driven. Going from a brief search on Facebook Marketplace, there are various levels of due diligence done for people selling affected cars, from people disclosing actual mileage estimates to people selling their cars as if they actually have 299,999 miles on the clock. Others simply disclose that the 299k reading isn’t accurate, but don’t provide an actual mileage estimate.
If you own a second-generation Prius with this problem, there is a more permanent solution. Starting in 2006, the Mk2 Prius got an update to its combination meter (the cluster that displays odometer, speed, fuel gauge, and current gear position) that fixed the 299,999-mile limit for the odometer. Because the circuit boards fit in the same place and plug into the same connectors, you can swap them. Texas Hybrid Batteries, a shop in the Dallas-Fort Worth area that specializes in Prius repairs, will sell you a new combination meter that’s programmed to match your car’s VIN and mileage for just $150.
If there’s a lesson to be learned here, it’s that the cheap Toyota you spotted for sale on Craigslist might not have the mileage the seller suggests it does. As always, please do your due diligence when shopping for cars, even if they’re as cheap and indestructible as these Toyotas.
Top graphic image: Toyota
The post Here’s Why A Handful Of Old Toyotas Have Odometers That Won’t Go Past 299,999 Miles appeared first on The Autopian.
