1 Why my mileage display is on and off
My mileage screen light goes on and off
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As Ruslan said, it’s a common problem with the Gen 2 Prius, enough to where Toyota extended the warranty on the part to 10 years from service start. If your combination meter (that’s what it’s called) goes faulty within 10 years of the car first being in service (you can check that date on Toyota tech info site by putting in your VIN), they should replace it for free. If not, I was quoted at two nearby Toyota dealerships, one for ~$550, the other, nearly $900. It also means your car will be in service for around 3-4 days as they have to order the replacement board with your proper mileage, wait for it to arrive from Toyota, and then install it.
You can order a refurbished board online (Google is your friend here) for about $150 if you don’t mind taking the entire dashboard apart. Luckily it’s pretty easy and there are YouTube videos out there showing exactly how it is done. Luckily, you can drive w/o the combo meter without hurting the car at all, you just have to track your fuel usage and mileage for oil changes and the like.
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It is a common problem. You need to replace some electrolythic capacitors on the indicator board.
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Remove the combination meter from the dash and Change the 100UF 16V to 220UF 16V and replace the 330UF 35V and 10UF 35V and you will be good to go for about $8.00 for quality replacements
I have already done two Prius's with this repair and they both still work perfectly
Hi Nicholas. Is there a video that explains it? Or when can I get these parts? I appreciate your help. Mariana
For me that happened and also my car wouldn't turn off all the time. The Toyota dealership said that the computer is bad that controls all of those sensors so i had to change it. had to spend around $1000 on the repair.
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My ‘07 does this on a regular basis. Pretty easy workaround was going into service mode and then powering off. Display always comes back. Service mode: with vehicle off, press power WITHOUT foot on brake. Hold INFO button down and turn lights on/off (3) times. Release INFO button. Service screen should pop up. Press power again (no foot on brake). Display panel should light up. Press power (no foot on brake) to turn off vehicle. Works on mine every time…
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Search on YouTube for "Gen 2 Prius Cluster Combination Meter Fix DIY". It worked for me, saving me about $1200 from what the dealership would charge. Total cost to me was about 60 cents and a couple hours of my time.
It WILL require you to take your dash apart, and at that point you can either ship the cluster to someone to repair (I've seen about a 10 day turn around and around $150 fee), or you can do what I did and solder a new capacitor onto the board. Up to you. :)
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Yes a common problem
My backyard mechanic friend looked my Prius (after my local dealer charged for diagnostics, couldn’t guarantee - but offered to replace the combination meter, promised to call when the part was in, and never called me back since)
anyway in the underdash fuses, - none were frankly ‘blown’ but several had melted plastic, and all had metal prongs looking scorched, and the prongs were shortened. the fuses under the hood looked fine. We replaced all the fuses under dash and everything operated fine for a few hundred miles, now the speedometer/combination meter is not working again. I can get it all going again if I take out and replace fuses # 8 and 9 - or unplug the 12 volt battery as shown on many u-tube videos.
My mechanic advises against repeated fuse unplugging, not sure why, we have a language problem, He suggests we will need to replace the ‘speedometer’ - I think he means combination meter, but for now use phone app for speed.
can anyone say why all the fuses looked scorched and shortened? does this indicate some deeper problem?
da Grace Heitsch