Car Chat General discussion about Lexus, other auto manufacturers and automotive news.

shifting from R to D while rolling backwards. Can late model lexus handle it?

Thread Tools
 
Search this Thread
 
Old 06-21-16, 02:06 PM
  #1  
pman6
Racer
Thread Starter
 
pman6's Avatar
 
Join Date: Aug 2012
Location: CALIFORNIA
Posts: 1,903
Likes: 0
Received 13 Likes on 9 Posts
Default shifting from R to D while rolling backwards. Can late model lexus handle it?

some people say it's a bad habit to shift to D while the car is still slowly rolling backwards.

Can lexus built in the last ~10 years handle this abuse?
pman6 is offline  
Old 06-21-16, 02:33 PM
  #2  
Hoovey689
Moderator
iTrader: (16)
 
Hoovey689's Avatar
 
Join Date: Oct 2008
Location: California
Posts: 42,283
Received 122 Likes on 82 Posts
Default

I've done it in my 2008 several times without it being too jerky. I say several times because I always park nose out. The times I do park nose in and reverse with a slight roll, there's no issue. I think it's really dependent on how fast 'slowly rolling backwards' is to the driver and their familiarity with the vehicle/transmission. That said, I wouldn't make it a habit lol.

My favorite would be when someone is parking and puts the car in P while they're still moving say >5mph. If you're a passenger, HOLD ON!!
Hoovey689 is offline  
Old 06-21-16, 03:24 PM
  #3  
Aron9000
Lexus Champion
 
Aron9000's Avatar
 
Join Date: Aug 2012
Location: TN
Posts: 4,592
Received 28 Likes on 27 Posts
Default

Its not good for the transmission, even if it doesn't jerk or clunk. Although they do design them to take this kind of abuse, imagine if you're stuck in snow, sand, mud, etc you'll need to be able to rock the car back and forth with some wheelspin to get yourself unstuck.
Aron9000 is offline  
Old 06-22-16, 09:46 AM
  #4  
geko29
Super Moderator

 
geko29's Avatar
 
Join Date: Feb 2007
Location: IL
Posts: 7,455
Received 208 Likes on 158 Posts
Default

I've done this in every automatic-transmissioned car I've ever driven, and in fact do the opposite (from D into R) as well, since I back into my driveway/garage. The torque converter is unlocked at these low speeds, and takes nearly all of the shock off the actual transmission. It's significantly less stressful than accelerating fast, and obviously modern transmissions have no problems with that. Our two current vehicles (2RX and E90) have 200k miles between them with no trans issues.

Definitely agree with Hoovey about being absolutely stopped before putting it in Park. The torque converter has absolutely nothing to do with the parking pawl.
geko29 is offline  
Old 06-23-16, 09:58 AM
  #5  
GSteg
Rookie
iTrader: (15)
 
GSteg's Avatar
 
Join Date: Jul 2005
Location: CA
Posts: 16,017
Likes: 0
Received 78 Likes on 60 Posts
Default

Your car will handle it no problem. Your transmission sees more load when you're accelerating from a stop.
GSteg is offline  
Old 06-24-16, 01:58 AM
  #6  
Fizzboy7
Lexus Test Driver
 
Fizzboy7's Avatar
 
Join Date: Mar 2008
Location: California
Posts: 9,678
Received 156 Likes on 91 Posts
Default

I'm not sure I understand why anyone would be in such a hurry to risk damaging components. Maybe it takes less than one more second to stop completely? I guess I a old fashioned or have no life.
Fizzboy7 is offline  
Old 06-24-16, 06:24 AM
  #7  
bagwell
Lexus Champion
 
bagwell's Avatar
 
Join Date: Oct 2002
Location: The Woodlands, TX
Posts: 11,205
Received 11 Likes on 11 Posts
Default

Originally Posted by Fizzboy7
I'm not sure I understand why anyone would be in such a hurry to risk damaging components. Maybe it takes less than one more second to stop completely?
agree 100%
bagwell is offline  
Old 06-24-16, 08:59 AM
  #8  
Stereorob
Lexus Test Driver
 
Stereorob's Avatar
 
Join Date: Mar 2013
Location: Florida
Posts: 1,582
Received 100 Likes on 69 Posts
Default

not sure about the new ones but I assume so. I accidently put my 1990 Ls400 in reverse at 35 mph once. it clicked very loudly till I put it back into drive. it was fine, but don't try it..
Stereorob is offline  
Old 06-24-16, 02:06 PM
  #9  
4TehNguyen
Lexus Fanatic
iTrader: (1)
 
4TehNguyen's Avatar
 
Join Date: Jan 2006
Location: Houston, Texas
Posts: 26,033
Received 51 Likes on 46 Posts
Default

just take the extra 2 sec to stop before shifting, no hurry
4TehNguyen is offline  
Old 06-29-16, 09:16 AM
  #10  
DreamGS4
Rookie
 
DreamGS4's Avatar
 
Join Date: Sep 2014
Location: CA
Posts: 59
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Fizzboy7
I'm not sure I understand why anyone would be in such a hurry to risk damaging components. Maybe it takes less than one more second to stop completely? I guess I a old fashioned or have no life.
+1 I cringe everytime i see someone slam it into D while the car is still rolling backwards. Or when they slam it into P while still rolling, transmissions may be designed to handle the abuse, but why put them through that if you dont have to? take ONE extra second and let the vehicle come to a complete stop IMHO
DreamGS4 is offline  
Old 06-29-16, 02:48 PM
  #11  
geko29
Super Moderator

 
geko29's Avatar
 
Join Date: Feb 2007
Location: IL
Posts: 7,455
Received 208 Likes on 158 Posts
Default

Originally Posted by DreamGS4
+1 I cringe everytime i see someone slam it into D while the car is still rolling backwards. Or when they slam it into P while still rolling, transmissions may be designed to handle the abuse, but why put them through that if you dont have to? take ONE extra second and let the vehicle come to a complete stop IMHO
One of those things is abuse. The other is not. A basic understanding of inertia is all that's necessary to make the distinction.

Put another way, to be consistent you should cringe every time you see someone apply more than just the slightest pressure to the accelerator when starting from a stop.

Last edited by geko29; 06-29-16 at 02:52 PM.
geko29 is offline  
Old 06-29-16, 06:51 PM
  #12  
GSteg
Rookie
iTrader: (15)
 
GSteg's Avatar
 
Join Date: Jul 2005
Location: CA
Posts: 16,017
Likes: 0
Received 78 Likes on 60 Posts
Default

Originally Posted by geko29
Put another way, to be consistent you should cringe every time you see someone apply more than just the slightest pressure to the accelerator when starting from a stop.
Now imagine stop and go traffic. Cringing all the way home.
GSteg is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Emirati
LX - 3rd Gen (2008-2021)
42
05-01-22 05:34 PM
abaitedcat
IS - 3rd Gen (2014-present)
4
12-03-18 07:53 AM
tegagirl
NX - 1st Gen (2015-2021)
1
07-31-17 09:54 AM
2012IS250
IS - 2nd Gen (2006-2013)
22
11-20-13 02:35 PM
RX370
RX - 2nd Gen (2004-2009)
12
11-10-10 07:34 AM



Quick Reply: shifting from R to D while rolling backwards. Can late model lexus handle it?



All times are GMT -7. The time now is 03:17 PM.