Prius 2011 no dash lights, won't start

generally, the car runs fine with a bad combo meter on gen2's

how old is the 12v? maybe the load is too much for it

 

Maybe a key fob issue. If you have a spare try it and see if it will start the Prius. If you do a key fob starting problem search on this site it will bring up a bunch of weird problems that are interrelated.

 

What is the voltage of the fob batteries and how old are they?

Have you tried putting the fob on the start button to start the Prius?

 

Are you sure the engine is "coming on." Sounds like it could be trying to start and failing. Hence the check engine light. You need to read the codes. What code reader failed to connect? Was it one that worked before?

 

i don't recall a 'press brake to start' message, maybe that is an indicator.

 

Hi I am having exactly same issue as op Chicov posted above any one can help how to resolve? what is causing? checked the fuses headlights works only door open sign appears nothing else on dashboard previously it was saying press the break pedal now only door open icon on dashboard nothing else.

 

Hi has anyone found a solution to this issue?

I have a problem where there is no power to the dash or ignition, the doors only open with the key and the door open icon is only lit up on the dash, no power switch lights are coming on, the brake lights work and the pump also makes a buzzing sound
The 12v has been checked although a little low on power 11v it has been tried with a booster attached and still nothing, breakdown company called same issue
All the fuses have been checked under the bonnet in the car and also on the positive terminal of the battery all seem to show ok when checked with a multimeter

 

Sounds like a 12 volt battery problem, how old is yours? The voltage needs to be in the middle 12 volt
area to operate properly. 12.4 to 12.8 for instance.

 

Don’t really know the age of the battery but it is an original AGM type, I can understand it being the battery but it still doesn’t make any difference with a jump attached to it
Once the booster cables are attached the voltage shows just below 13v but still no response from the vehicle, so to sum it up no difference with or without an additional power supply attached

 

attach the jumper and check the voltage at the front jump point

 

It was checked and showed just under 13v with the jump cables attached to the car
I have also noticed the trunk/boot does not open either with the jump cables attached
So it looks like everything on the direct battery powered circuit I.e headlights interior lights etc work, but the car will not recognise the key hence the keyless feature not the trunk/boot work
So if it won’t pick the key up then it won’t put the car into ignition mode?
But the battery within the remote is new and the car does not say anything about not detecting the key or anything
Totally stumped with this one and don’t want to send it to the dealers just yet as I’m sure it’s something minor

 

Have you checked the connections? Having voltage but not current is evidence of a loose connection. The terminals on the battery would be the first place to look, but don't forget the ground connection at the body from the battery. If that's all clean and tight, then check at the jump point us front.

 

All checked and all good just checked all the fuses again and they are all ok too

 

Hi my car has been with the main dealers now for a month and they still haven’t managed to sort the non start issue out, they initially said it was an earth problem but that did not cure it, they then said it was the certification ecu, they have changed that too
But the car still won’t power up, a new AGM battery has also been fitted
I am am my wits end now as the dealers are even stumped as to what the problem may be, if any one has any knowledge or has come across a problem please do let me know
To summarise the issue, the car will not open with the remote when opened with the key the only light in the dash is the door open sign, all the direct battery circuits seems to be working, I.e the dome lights headlights etc but there is now power to the ignition side the start button does not light up or anything

 

Hi
Any news about the car
Did you found any solution ??