2016 prius 4 brake button question help

Brake Button? Do you mean Park Button? I don't have a brake button in my Four.

 

There are only 2 brakes on a Gen 4 PRIUS - the footbrake, and the parking brake which is activated by your foot too. Which are you talking about?

 

Yes, logic suggests he means the Park button and I've never heard of this before. If there is no assembly defect at the switch, the only thing is to be very careful when pressing it until the dealer and Toyota USA find an acceptable solution - which might be another car!

 

welcome!

you'll have to go back to the dealer, and request a more thorough investigation of the cause. i don't recall seeing anyone else with this problem.

 

I have never used my parking brake. The manual says you release it by pressing it again, no button.

 

I think it's referring to the Parking Mode button.

 

The only thing I can think of is that the plastic tabs - or whatever hold the P(ark) button - have broken. Definitely should be a warranty repair & report to NHTSA, that is unsafe.

Posted via the PriusChat mobile app.

 

Presumably the parking pawl, or equivalent, will still be activated when the engine is switched off.

 

True - I don't recall pressing the "P" Button more than a few times. I haven't really seen a need for it - unlike a conventional auto which you put into PARK when you park, PRIUS engages the parking pawl when you press POWER (off).

 

Just make sure the car is completely stopped before you hit the power button. If its still in motion, it won't happen or if the motion is very slow, it will slam to a stop and possibly damage the pawl.

 

I thought the pressing of the Power Button was a form of "Emergency Stop" when all else fails. I did not think it was supposed to cause harm. It was my understanding that a sensor kept the pawl from activating at speed.

 

From USA Manual 2016

 

I looked at a 2016 Prius with the exact same problem; it is the "Park" button that collapsed. Used car dealer said they would fix it, but haven't yet.

 

I would return to the dealer and ask them to replace the button with a new one, not "fix" it. Unless you're being very heavy handed, it's obviously broken internally and needs a new one.

 

This has been an ongoing problem for me. I know how to remove the bezel, that holds the button in place. The problem is that the wire leads to the button are "very" short, so re-seating the button is a pain. I was hoping that by now Prius would have an extension made, to alleviate the problem.

A simple fix for the situation would be to apply tape around the button base / wire lead plug or perhaps a zip-tie to keep the button from collapsing. However, since the wire is much too short, there's no way to do this. I think I'm just going to have to splice 3" of wire or so into the circuit. Very poor design by Toyota.

 

splicing in wire sounds good, and concur about design shortcoming.

 

The OP never returned - that was 3¼ years ago.