Releasing Cruise Control with Brake

[austingreen]

I noticed the heavier pedal as well. I thought it was just another feature of the prius like the joy stick shifter that requires an extra button for park. No big deal on the cruise, I just got used to disengaging with the stalk and tapping my brakes so drivers behind me could see I was slowing.

But it is a bigger deal if my brake lights don't go on with the brakes. Do you know if the fix is the same as on the Gen II. I'm going to check with my dealer tomorrow to see if he can adjust my brake lights.

Originally Posted by brick

I wish I had seen this thread earlier. I had a similar problem with my '07 and fixed it:

Figured out why I'm being tailgated so often...

[wentfrom15to51MPG]

Update: I brought my 2010 Prius II to a second dealer and they said the same thing as the first dealer. After keeping my car for a few hours, they told me that it was working exactly as designed and that there was nothing they could do to adjust the travel in the brake pedal with reference to releasing the cruise control.

I told them that it could become a safety issue especially while driving up a steep hill with the cruise control set. The car actually fights to speed up while depressing the brake pedal until it either abruptly slams on the brakes -- throwing everyone forward in the process -- or you release the brake pedal completely without the CC disengaging, resulting in unintended acceleration.

They just repeated that nothing could be done to adjust the pedal or switch.

I am expecting a return call from Toyota on Tuesday, 1-19-10, regarding this issue. I will keep pressing them until I receive a satisfactory response. I will keep posting any updates to this forum as I receive them.

-Troy

[tumbleweed]

Originally Posted by brick

I wish I had seen this thread earlier. I had a similar problem with my '07 and fixed it:

Figured out why I'm being tailgated so often...

Thanks brick, that was a good write up. I looked under the dash and found the switch, I think it's the same setup you described for the Gen2. What may be different is getting the lower dash apart to get to it.

I think the fact it is hard to get to may be the reason so many service departments are telling us that "it looks fine to us" or worse yet "there is no way to adjust it".

[Airbalancer]

Every car is different, so I wish people would learn how drive their cars

I drive 3 different makes, they are all different
It just every operating system is different, but basic does the same thing

It just like a design build job of a building, no two group of engineers will come up with the same design, but they started out with the same requirements

LEARN YOUR CAR

[bryceb04]

OK, based on another thread on this forum, I found it incredibly easy to adjust the sensor, but I'm curious why Toyota would have it so ridiculously insensitive to brake pedal input. Anyway, if you have two working hands, a phillips screwdriver and a flashlight, you can do the adjustment all by yourself. Really, or pay me $100 and a plane ticket and I'll do it for you.

Anyway, the procedure is: you remove the dash panel that has the tire pressure adjustment switch (2 phillips screws and a push release (plus the release for the wires for the switch)). Then you look under there at the brake pedal. Toward the rear of the car you'll see a green switch body going into a brown holder on some other metal brake holder thingy. Push the brake down and toggle with the white solenoid to verify this is what you want to adjust.

Once you've verified this, it's as easy as rotating the green thingy counterclockwise a quarter turn, moving it out a smidgen, and then rotating it clockwise to get the setting you want. Verify by sitting in the drivers seat and hitting the brake pedal to make sure where you want the brakes to light up at.

Take a test drive, verify the cruise shuts off when desired and then button it all up and be on your merry way.

Too easy.

Cheers!
Bryce

[bwilson4web]

Originally Posted by bryceb04

. . . if you have two working hands, a phillips screwdriver and a flashlight, you can do the adjustment all by yourself. Really, or pay me $100 and a plane ticket and I'll do it for you.

Anyway, the procedure is: you remove the dash panel that has the tire pressure adjustment switch (2 phillips screws and a push release (plus the release for the wires for the switch)). Then you look under there at the brake pedal. Toward the rear of the car you'll see a green switch body going into a brown holder on some other metal brake holder thingy. Push the brake down and toggle with the white solenoid to verify this is what you want to adjust.

Once you've verified this, it's as easy as rotating the green thingy counterclockwise a quarter turn, moving it out a smidgen, and then rotating it clockwise to get the setting you want. Verify by sitting in the drivers seat and hitting the brake pedal to make sure where you want the brakes to light up at.

Take a test drive, verify the cruise shuts off when desired and then button it all up and be on your merry way.

Too easy.

Cheers!
Bryce

Well done!

Bob Wilson

[cycledrum]

Probably covered by someone else, but I pull the stalk towards me to cancel, take over the gas pedal, then maybe turn off the CC.

[tumbleweed]

Originally Posted by bryceb04

OK, based on another thread on this forum, I found it incredibly easy to adjust the sensor, but I'm curious why Toyota would have it so ridiculously insensitive to brake pedal input. Anyway, if you have two working hands, a phillips screwdriver and a flashlight, you can do the adjustment all by yourself. Really, or pay me $100 and a plane ticket and I'll do it for you.

Anyway, the procedure is: you remove the dash panel that has the tire pressure adjustment switch (2 phillips screws and a push release (plus the release for the wires for the switch)). Then you look under there at the brake pedal. Toward the rear of the car you'll see a green switch body going into a brown holder on some other metal brake holder thingy. Push the brake down and toggle with the white solenoid to verify this is what you want to adjust.

Once you've verified this, it's as easy as rotating the green thingy counterclockwise a quarter turn, moving it out a smidgen, and then rotating it clockwise to get the setting you want. Verify by sitting in the drivers seat and hitting the brake pedal to make sure where you want the brakes to light up at.

Take a test drive, verify the cruise shuts off when desired and then button it all up and be on your merry way.

Too easy.

Cheers!
Bryce

That works just as you said Bryce. But I'm glad I read your post before I tried it, I am no mechanic. I was all set to try and turn the brown thing which might have broken it, and I didn't see how easy it was to get the black dash panel off.

Mine was adjusted for about 1.2 cm of pedal travel before it activated; after the adjustment it is about .5 cm. Now I can release the CC with the brake pedal before the brakes are applied and cars behind me will see brake lights as soon as I push the pedal down. Much better.

[kgall]

Originally Posted by bryceb04

OK, based on another thread on this forum, I found it incredibly easy to adjust the sensor, but I'm curious why Toyota would have it so ridiculously insensitive to brake pedal input. Anyway, if you have two working hands, a phillips screwdriver and a flashlight, you can do the adjustment all by yourself. Really, or pay me $100 and a plane ticket and I'll do it for you.

Anyway, the procedure is: you remove the dash panel that has the tire pressure adjustment switch (2 phillips screws and a push release (plus the release for the wires for the switch)). Then you look under there at the brake pedal. Toward the rear of the car you'll see a green switch body going into a brown holder on some other metal brake holder thingy. Push the brake down and toggle with the white solenoid to verify this is what you want to adjust.

Once you've verified this, it's as easy as rotating the green thingy counterclockwise a quarter turn, moving it out a smidgen, and then rotating it clockwise to get the setting you want. Verify by sitting in the drivers seat and hitting the brake pedal to make sure where you want the brakes to light up at.

Take a test drive, verify the cruise shuts off when desired and then button it all up and be on your merry way.

Too easy.

Cheers!
Bryce

Bryce,
Taking off the dash panel and rotating a green thingy.
That's so cool.
That's so Old School.
That's so . . .
So . . .
So ANALOG!

[qbee42]

Originally Posted by kgall

Bryce,
Taking off the dash panel and rotating a green thingy.
That's so cool.
That's so Old School.
That's so . . .
So . . .
So ANALOG!

We need a small stepper motor to move the green thingy.

Tom