Electronic Parking Brake - Failed Actuator

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Oct 26, 2021 | 03:53 PM

#16

ravenuer

Racer

Joined: Nov 2017

Posts: 1,942

Likes: 581

From: New York

Quote:

Originally Posted by dibl

Interesting thread. Once I discovered that the electric brake on the driver's side rear wheel of my 2018 automatically goes on when I put it in Park, I never gave it a second thought. It goes on, it comes off when I put the car in gear -- such a huge improvement over the mechanical parking brake on my 2015, which, to my surprised discovery, did not actually hold the car if I inadvertently forgot to release it when I put the car in reverse. Today, I never think about it.

Only the drivers side activates? Not both?

Oct 27, 2021 | 06:32 AM

#17

golferjack

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Joined: Sep 2018

Posts: 512

Likes: 152

From: Colorado

I don't understand the reluctance to use it. I have it in Auto and never worry. In the winter, when it is very cold and snowing, I turn ot off to avoid the brakes freezing overnight. Probably just being ****, but other than that I never give it a thought. On when I park off when I move.

Oct 27, 2021 | 09:17 AM

#18

dibl

Instructor

Joined: Sep 2015

Posts: 979

Likes: 696

From: Ohio

Quote:

Originally Posted by ravenuer

Only the drivers side activates? Not both?

Only the driver's side has the electric parking brake. Lots of information and video links on this page:

https://www.clublexus.com/forums/rx-...2016-rx-3.html

Oct 27, 2021 | 09:42 AM

#19

mikemu30

Lexus Test Driver

Joined: Jul 2017

Posts: 9,659

Likes: 3,438

From: NJ

Quote:

Originally Posted by golferjack

The wear and tear from using it multiple times a day and it just serves no purpose unless you're parked on a steep hill.

Oct 27, 2021 | 10:55 AM

#20

golferjack

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Joined: Sep 2018

Posts: 512

Likes: 152

From: Colorado

The steering wheel also moves when parking, and locking the car moves the mirrors. Lots of motors to go bad, but short of disconnecting the car from itself, I say enjoy the features.

Oct 27, 2021 | 11:04 AM

#21

FLM99

Driver School Candidate

Joined: Jul 2016

Posts: 22

Likes: 12

From: PA

Quote:

Originally Posted by mikemu30

The wear and tear from using it multiple times a day and it just serves no purpose unless you're parked on a steep hill.

The brake hardware was made for multi-uses. And for vehicle/passenger safety, it does serve a purpose as I outlined above. Yes, someday it might wear out. If it does - fix it. I didn't buy a Lexus expecting that I shouldn't use a (safety) feature because it might wear out, or that it might not be cheap to repair.

Oct 27, 2021 | 11:15 AM

#22

mikemu30

Lexus Test Driver

Joined: Jul 2017

Posts: 9,659

Likes: 3,438

From: NJ

Quote:

Originally Posted by golferjack

The steering wheel also moves when parking, and locking the car moves the mirrors. Lots of motors to go bad, but short of disconnecting the car from itself, I say enjoy the features.

Yep but those serve some purpose (TO ME). I also disable the easy exit seat movement. Don't need it so why cause unneeded wear. I like coffee ice cream - you may like vanilla

Oct 27, 2021 | 08:31 PM

#23

ghost31711

Pit Crew

Joined: Jun 2010

Posts: 148

Likes: 57

From: ca

Quote:

Originally Posted by dibl

Only the driver's side has the electric parking brake. Lots of information and video links on this page:

https://www.clublexus.com/forums/rx-...2016-rx-3.html

I think there are two actuators, one for each side of the rear wheels (left and right). I remember changing out o-rings for both when I changed rear pads.

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Oct 28, 2021 | 03:26 AM

#24

dibl

Instructor

Joined: Sep 2015

Posts: 979

Likes: 696

From: Ohio

Quote:

Originally Posted by ghost31711

I think there are two actuators, one for each side of the rear wheels (left and right). I remember changing out o-rings for both when I changed rear pads.

Aha -- well, I learned something here -- thanks!

Oct 28, 2021 | 03:10 PM

#25

bamalam

Advanced

Joined: Feb 2020

Posts: 747

Likes: 459

From: WV

Quote:

Originally Posted by dibl

I'm of the same mindset - I use the feature and never think about it. Living in a hilly area, making frequent use of a parking brake was habit learned a long time ago. I also really dislike the grinding thunk you hear when taking a vehicle out of Park when it's been hanging on the pawl due to an incline.

Oct 29, 2021 | 05:39 AM

#26

Cocal

Racer

Joined: Feb 2017

Posts: 1,555

Likes: 345

From: Ontario, Canada

Quote:

Originally Posted by bamalam

It's a great feature IMO, I had a '68 Cadillac which had an automatica parking brake release when put into Reverse or Drive, I missed that feature in subsequent cars till it was re-introduced in current cars.

Oct 31, 2021 | 06:44 PM

#27

toyotaman7

Pole Position

Joined: Jan 2016

Posts: 2,228

Likes: 904

From: Ontario

Quote:

Originally Posted by dibl

Only the driver's side has the electric parking brake. Lots of information and video links on this page:

https://www.clublexus.com/forums/rx-...2016-rx-3.html

I'm pretty sure both rear calipers have electric parking brakes. Just check your ready calipers. If they have the plastic black piece then they have the electric motor.