Speedometer just disappeared .....

If you didn't knock the dimmer switch, then you might have a bad POR circuit in your combination meter. PM peef about it.

 

We need a Wiki page for stuff like this. This is a very common question.

 

Just make sure nothing slid over the projector part like a bussiness card or something.

 

"Why officer, was I going over the speed limit"?

 

+1 on that, and check the dash light dimmer (thumb-wheel located low and to the left of the steering wheel).

 

Surely dash light can't totally black it out. Sounds like OP can't see it -at all-.

 

If the thumb wheel for dash lights is turned all the way down and you turn on the headlights you loose everything except the warning lights. Just turn it up past the click for day time driving.

If that isn't the problem it needs a trip to the dealer. Several people have had a failure of one side or the other.

 

How and where would something have to be to block the projector from displaying that data ?

Just curious/.

Thanks

REV

 

The left half is a mirror with the projector mounted down in the dash. You can block it with a piece of paper, try it.

 

The most common cause is turning on the headlights with the dimmer wheel turned down. With the headlights off, the dimmer wheel doesn't do anything, so it's easy to turn it down without noticing. The next time you turn on the headlights the display goes black.

Tom

 

Yes it can. Try it.

 

And, don't call me Shirley.

 

The same thing happened to me last fall driving to VT. The left side of my display went black - no speedometer, instant mpg, gear info or gas tank level. I took it to the dealership & they replaced the board that controls the display, shaking their heads as to why only 1 side when out since the board controls both the left & the HSI on the right.

I've seen other reports of this problem here at PC.

 

If this happened out of warranty, there is a tech in northern California who goes by the name pEEf here on Priuschat who repairs these boards at low cost. He works with a very good auto repair company in northern California, Luscious Garage.

JeffD

 

+three!! This just happened to me too!! It was pitch black out and all if the sudden, I lost that whole instrument cluster (fuel gauge, speedometer and shift indicator). I almost crashed into the curb looking for the speedometer. Didn't realize how much I look at that. I pulled over, made sure the dimmer knob was up (it was and all other indicators were working fine). I power cycled the car and that didn't help either. It is hard to drive in darkness without a speedometer! Was going to take it to the shop but when I went to my car a few hours later, it was working again! Very unsettling, this car is brand new!!

 

Did something slide over the recess in the dashboard below the speedo? It reflects from below into a mirror.

 

No, it really went out.

 

Just thinking: go back twenty years and this thread wouldn't make much sense.