2012 slows down fast for an automatic
JK Enthusiast
Joined: May 2011
Posts: 482
Likes: 0
From: heart of dixie
Sounds like increased rolling resistance? Perhaps the re-gearing on the auto's.
Nevermind - here's a good thread on the fuel shut-off "feature":
https://www.jk-forum.com/forums/show...n-decelerating
Nevermind - here's a good thread on the fuel shut-off "feature":
https://www.jk-forum.com/forums/show...n-decelerating
Last edited by jhol111964; Oct 28, 2011 at 02:58 AM.
JK Super Freak
Joined: Jun 2011
Posts: 1,715
Likes: 11
From: Olympia, WA
This has been covered in other threads. The Hill Start Assist (HSA) contributes to quick coast down.
A few of us tested this and posted back a couple months ago. I appears the HSA system starts applying some brake when you lift off the gas. It is more noticable on hills. When HSA is turned off, the quick slow-down goes away. I keep HSA turned off all the time. Its a mall-crawler feature for people who can't drive anyway.
Not to say there isn't something else contributing to slow-down on the 2012, but HSA is part of the picture.
Turning off HSA is covered in the manual.
Search up "HSA" on the forum and there will be lots of posts.
A few of us tested this and posted back a couple months ago. I appears the HSA system starts applying some brake when you lift off the gas. It is more noticable on hills. When HSA is turned off, the quick slow-down goes away. I keep HSA turned off all the time. Its a mall-crawler feature for people who can't drive anyway.
Not to say there isn't something else contributing to slow-down on the 2012, but HSA is part of the picture.
Turning off HSA is covered in the manual.
Search up "HSA" on the forum and there will be lots of posts.
JK Enthusiast
Joined: Oct 2010
Posts: 221
Likes: 0
From: Jenison, MI
This has been covered in other threads. The Hill Start Assist (HSA) contributes to quick coast down.
A few of us tested this and posted back a couple months ago. I appears the HSA system starts applying some brake when you lift off the gas. It is more noticable on hills. When HSA is turned off, the quick slow-down goes away. I keep HSA turned off all the time. Its a mall-crawler feature for people who can't drive anyway.
Not to say there isn't something else contributing to slow-down on the 2012, but HSA is part of the picture.
Turning off HSA is covered in the manual.
Search up "HSA" on the forum and there will be lots of posts.
A few of us tested this and posted back a couple months ago. I appears the HSA system starts applying some brake when you lift off the gas. It is more noticable on hills. When HSA is turned off, the quick slow-down goes away. I keep HSA turned off all the time. Its a mall-crawler feature for people who can't drive anyway.
Not to say there isn't something else contributing to slow-down on the 2012, but HSA is part of the picture.
Turning off HSA is covered in the manual.
Search up "HSA" on the forum and there will be lots of posts.
JK Enthusiast
Joined: Oct 2010
Posts: 495
Likes: 0
From: Dallas, TX