Dash blank car wouldn't turn off

This combination meter issue addressed by an extended warranty for 9 years. After 9 years, you would just buy another unit (refurbished) and install it.

If it's out of warranty, I would wait to see if this is going to be an ongoing issue first. I had this happen once on my 2005 and it never happened again

 

Hud has bad cap on the board 3 of them. See my post to fix it short term. Pulling 4 fuses with car on. Then turn off holding power button install fuse. Under hood all the way to right the 4 by them self. But the real fix is the cap on the HID Display

Posted via the PriusChat mobile app.

 

About evey 6mo hot weather makes it worst

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I would just buy a rebuilt w/ a Guarantee, by Matt at Texas Hybrid Batteries; $150 + refundable $75 CORE charge.
Matt seems to be a respectable member and runs a sound business in the DFW area of TX.

Texas Prius Battery Replacement

Since you indicate being uncomfortable working on the car, you should probably hire this repair out.

 

Cap are like $1 each

Posted via the PriusChat mobile app.

 

It is not just the price of the parts you pay for when you outsource the job, but the knowledge of what to do, how to do it and the time taken to do it. That is worth something.

 

Reminds me of the old joke (yup, the oldies are the best!)
"A Software Engineer, Hardware Engineer, and a Project Manager were having a driving holiday in the Alps and during a hairy descent of one of the many steep passes in the mountains, the brakes of their Volvo seemed to fail, but by skillful driving and use of the gears, they were able to bring the car to a halt, resting precariously against the guard-rail. They all staggered out, somewhat shaken, but thankful to be alive.
The Project Manager suggested they have a meeting to decide what to do.
The Hardware Engineer said "No problem, I'm familiar with the workings of Volvos and I'm sure I can find and fix the problem with the tools we have, and I can always use my trusted Swiss-Army Knife", which he then took from his pocket…
The Software Engineer then piped up "Hang on chaps! Let's not be too hasty! I think we should drive back to the top of the pass, and try once more, and see if the same thing happens again!" "

 

Just a quick suggestion.... Check your 12V battery before you dive into any major repairs for this. I had a similar problem: car acted flakey and wouldn't turn off. Turns out just the 12V was getting weak. Replaced it and problem went away. Nothing to lose, and possibly might avoid a long unesessary repair job.

 

OP had the Comb Meter (speedometer/odometer/trip odometer/fuel gauge) failure. This is a known failure, that is intermittent. Colder climates seem to have more instances of combo meter failures, than warmer climates.

Was your combo meter not ON too? As far as I know, that is the only thing the will prevent the car from turning off with a single quick depression of the POWER button. As you may know, if the combo meter is out, you have to keep the POWER button depressed for a few seconds for the car to turn off (~3-5 sec).

 

+1

Also, the fact that OP states the following, leads me to believe he does not do much DIY, let alone fine electrical work.