LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Pre-collision system went off on the freeway today...

Thread Tools
 
Search this Thread
 
Old 09-08-10, 09:28 PM
  #1  
aypues
Instructor
Thread Starter
 
aypues's Avatar
 
Join Date: Feb 2008
Location: CA
Posts: 880
Received 56 Likes on 44 Posts
Default Pre-collision system went off on the freeway today...

...and it was AMAZING. It cinched me back into the seat HARD and FAST and it did something to the suspension and brakes that REALLY quickened the braking and reaction time. I feel super safe now. Really glad I got it. And glad I didn't get into an accident either luckily.

Anyone else have any experiences with this?
Old 09-09-10, 12:54 AM
  #2  
Playdrv4me
Lead Lap
 
Playdrv4me's Avatar
 
Join Date: Jan 2005
Location: KS/MO
Posts: 454
Likes: 0
Received 7 Likes on 2 Posts
Default

I think its a great concept and probably works incredibly well. Nevertheless in a car this huge I certainly don't feel like I'm going to come out on the losing end of most objects I come into contact with by not having the system.

I think it makes much more sense on smaller vehicles like the RX and ES.
Old 09-09-10, 01:55 AM
  #3  
REV-01
Lexus Champion
iTrader: (13)
 
REV-01's Avatar
 
Join Date: Apr 2005
Location: hi
Posts: 1,746
Likes: 0
Received 1 Like on 1 Post
Default

yeah save me a few times from other dumb drivers....plus i had brembo brakes all around so it stops on a dime.
Old 09-09-10, 05:44 AM
  #4  
caddyowner
Recovering Lexus Addict
 
caddyowner's Avatar
 
Join Date: Jul 2009
Location: MI
Posts: 4,810
Likes: 0
Received 13 Likes on 9 Posts
Default

There was a recent post on one of the forums about another automakers PCS system being triggered by rough pavement. Owners weren't happy, but the automaker warned of the possibility in the manual.
Old 09-09-10, 05:50 AM
  #5  
DDLexus
Racer
 
DDLexus's Avatar
 
Join Date: Jun 2001
Location: Alabama
Posts: 1,254
Received 25 Likes on 20 Posts
Default

Originally Posted by Playdrv4me
Nevertheless in a car this huge I certainly don't feel like I'm going to come out on the losing end of most objects I come into contact with by not having the system.
Actually, the system was designed to 1) prevent a collision and/or 2) reduce the effect of a collision. So, regardless of how big the car is, preventing an accident in the first place is of substantial value. Also, reducing the force of an impact by slowing the vehicle down and tightening the belts by any increased margin is important.
Old 09-09-10, 06:23 AM
  #6  
Jabberwock
Moderator
 
Jabberwock's Avatar
 
Join Date: Sep 2009
Location: Alabama
Posts: 3,901
Received 203 Likes on 166 Posts
Default

Originally Posted by DDLexus
Actually, the system was designed to 1) prevent a collision and/or 2) reduce the effect of a collision. So, regardless of how big the car is, preventing an accident in the first place is of substantial value. Also, reducing the force of an impact by slowing the vehicle down and tightening the belts by any increased margin is important.
Yep - even relatively small decrease in speed in a collision can make a big difference to the overall force applied to your body.
Old 09-09-10, 11:52 AM
  #7  
Slvr surfr
Lexus Test Driver
iTrader: (1)
 
Slvr surfr's Avatar
 
Join Date: Oct 2009
Location: dc
Posts: 1,284
Likes: 0
Received 10 Likes on 6 Posts
Default

Originally Posted by Jabberwock
Yep - even relatively small decrease in speed in a collision can make a big difference to the overall force applied to your body.
Thats the difference between a fracture, crack, and a break!
Old 09-09-10, 01:44 PM
  #8  
Jabberwock
Moderator
 
Jabberwock's Avatar
 
Join Date: Sep 2009
Location: Alabama
Posts: 3,901
Received 203 Likes on 166 Posts
Default

Exactly - Kinetic Energy or the force you impact with equals (1/2 mass) times (speed squared). The "speed squared" portion of this physics equation is the part that kills you when you crash into something going too fast.
Old 09-09-10, 02:37 PM
  #9  
kg19989
Lead Lap
 
kg19989's Avatar
 
Join Date: Jan 2010
Location: San Antonio, TX
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default

dumb question... how do you know if you have it? Is it part of the CL and UL or a standalone option?
Old 09-09-10, 03:32 PM
  #10  
caddyowner
Recovering Lexus Addict
 
caddyowner's Avatar
 
Join Date: Jul 2009
Location: MI
Posts: 4,810
Likes: 0
Received 13 Likes on 9 Posts
Default

PCS with radar cruise control was a standalone option that was available on cars with the CL and UL packages only. It was an upgrade from the laser cruise control included with the CL and UL packages.
Old 09-09-10, 07:22 PM
  #11  
kg19989
Lead Lap
 
kg19989's Avatar
 
Join Date: Jan 2010
Location: San Antonio, TX
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks Caddy... as always you are well informed and Johnny on the spot!
Old 09-10-10, 01:53 AM
  #12  
Playdrv4me
Lead Lap
 
Playdrv4me's Avatar
 
Join Date: Jan 2005
Location: KS/MO
Posts: 454
Likes: 0
Received 7 Likes on 2 Posts
Default

Originally Posted by Jabberwock
Yep - even relatively small decrease in speed in a collision can make a big difference to the overall force applied to your body.
Hmm, a valid point.
Old 09-10-10, 06:13 AM
  #13  
DDLexus
Racer
 
DDLexus's Avatar
 
Join Date: Jun 2001
Location: Alabama
Posts: 1,254
Received 25 Likes on 20 Posts
Default

Originally Posted by kg19989
dumb question... how do you know if you have it? Is it part of the CL and UL or a standalone option?
You'll know a car has PCS if the main Lexus badge is covered with a thin rectangular piece of "plastic-like material". Could be Lexan or Plexiglass.
Attached Thumbnails Pre-collision system went off on the freeway today...-lexuspcs.jpg  
Old 09-11-10, 07:58 PM
  #14  
tsslaporte
Pit Crew
 
tsslaporte's Avatar
 
Join Date: Feb 2010
Location: N. Miami
Posts: 170
Likes: 0
Received 1 Like on 1 Post
Default

wow I never knew the car even had a PCS. My dads car has that plastic/Lexan thing and I never knew why.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jimxo
Car Chat
37
07-07-14 06:41 AM
amphipri0n
ES - 6th Gen (2013-2018)
2
12-06-12 06:58 AM
PatsSoxfan
LS - 4th Gen (2007-2017)
10
07-31-09 12:46 PM



Quick Reply: Pre-collision system went off on the freeway today...



All times are GMT -7. The time now is 04:25 AM.