Go Back  DVD Talk Forum > General Discussions > Other Talk
Reload this Page >

Whats wrong with driving with Cruise Control in the rain?

Other Talk "Otterville" plus Religion/Politics

Whats wrong with driving with Cruise Control in the rain?

Old 02-03-06, 01:53 PM
  #1  
2017 TOTY Winner
Thread Starter
 
Save Ferris's Avatar
 
Join Date: Nov 2001
Posts: 13,576
Whats wrong with driving with Cruise Control in the rain?

There was a big debate where I work, some people say its fine some say your car will speed up uncontrollably. Whats the real deal?
Save Ferris is offline  
Old 02-03-06, 01:58 PM
  #2  
DVD Talk Platinum Edition
 
Join Date: Jan 2003
Location: Tennessee, USA
Posts: 3,515
Never heard of there being a problem with it.
taa455 is offline  
Old 02-03-06, 01:58 PM
  #3  
DVD Talk Hero
 
Join Date: Jun 2000
Location: Somewhere between Heaven and Hell
Posts: 29,935
You'll find out if you ever hit a patch of water and start to hydroplane.
devilshalo is offline  
Old 02-03-06, 02:01 PM
  #4  
DVD Talk God
 
Join Date: Feb 2000
Location: Directionally Challenged (for DirecTV)
Posts: 122,463
Originally Posted by devilshalo
You'll find out if you ever hit a patch of water and start to hydroplane.

Yep. I would never engage CC when driving on wet roads.
Red Dog is offline  
Old 02-03-06, 02:08 PM
  #5  
DVD Talk Legend
 
Join Date: Jul 2005
Location: Working for Gizmonic Institute
Posts: 10,430
You'll probably find out if you hit a puddle with CC on and started to hydroplane. The only way to turn off CC would only make matters worse.

A.
Spoiler:
You would have to hit your brakes, which would make the skid worse.
crazyronin is offline  
Old 02-03-06, 02:10 PM
  #6  
DVD Talk Legend
 
Mopower's Avatar
 
Join Date: Nov 2001
Location: The Janitor's closet in Kinnick Stadium
Posts: 15,726
Has anyone said that if you have CC on and start to hydroplane you could crash? Because that is what could happen.
Mopower is offline  
Old 02-03-06, 02:10 PM
  #7  
DVD Talk Hall of Fame
 
Join Date: Oct 1999
Location: not CT
Posts: 9,614
why can't you just press the off button?
BigPete is offline  
Old 02-03-06, 02:10 PM
  #8  
DVD Talk Hero
 
Th0r S1mpson's Avatar
 
Join Date: Apr 1999
Location: Seattle, WA
Posts: 36,443
B.
There is almost always another way to turn off cruise control without braking.
Th0r S1mpson is offline  
Old 02-03-06, 02:12 PM
  #9  
Senior Member
 
Join Date: May 2000
Location: Vancouver, BC
Posts: 645
Pressing in the clutch in the rain is gonna make me crash? Uh-oh.... should've driven the automatic today....
Dirk is offline  
Old 02-03-06, 02:14 PM
  #10  
2017 TOTY Winner
Thread Starter
 
Save Ferris's Avatar
 
Join Date: Nov 2001
Posts: 13,576
once you slow down you dont hydroplane any more. why would CC in the rain make your car 'launch' out of control as Ive heard it said.
Save Ferris is offline  
Old 02-03-06, 02:16 PM
  #11  
DVD Talk Legend
 
Join Date: May 2000
Location: Under Golden Gate Bridge
Posts: 10,912
Never heard this. Thanks.
big whoppa is offline  
Old 02-03-06, 02:17 PM
  #12  
DVD Talk God
 
Join Date: Feb 2000
Location: Directionally Challenged (for DirecTV)
Posts: 122,463
Originally Posted by Thor Simpson
B.
There is almost always another way to turn off cruise control without braking.

I can take my foot off the gas pedal faster than I can press the button to disengage CC.
Red Dog is offline  
Old 02-03-06, 02:18 PM
  #13  
DVD Talk Ultimate Edition
 
Join Date: Sep 1999
Location: Grounded in reality. For the most part.
Posts: 4,806
The only way to stop this wheel-spin and maintain control is to immediately reduce power. However, an activated cruise control system will continue to apply power, keeping the wheels spinning. By the time you disengage the cruise control, you may have lost control.
From snopes.

http://www.snopes.com/autos/techno/wetroad.asp
Alien Redrum is offline  
Old 02-03-06, 02:18 PM
  #14  
DVD Talk Legend
 
Join Date: Jul 2005
Location: Working for Gizmonic Institute
Posts: 10,430
Yes but if you hydroplane, the first thing to do is to take your foot off the gas, with CC on that option is taken away. Around here I don't use CC til late spring (because of the chance of icy conditions.
crazyronin is offline  
Old 02-03-06, 02:19 PM
  #15  
DVD Talk Hero
 
Th0r S1mpson's Avatar
 
Join Date: Apr 1999
Location: Seattle, WA
Posts: 36,443
Originally Posted by Save Ferris
once you slow down you dont hydroplane any more. why would CC in the rain make your car 'launch' out of control as Ive heard it said.
I guess maybe because if you are hydroplaning, the CC will keep the tires spinning at the same rate, but your car will slow. As soon as you hit dry pavement, that would cause the "launching" you refer to.

I've never heard of this myself, but it does make some sense.
Originally Posted by Red Dog
I can take my foot off the gas pedal faster than I can press the button to disengage CC.
Yeah, I wasn't commenting on the fact that CC might be a bad idea, just that cruise control can be disabled in a manner other than braking.
Th0r S1mpson is offline  
Old 02-03-06, 02:23 PM
  #16  
DVD Talk Platinum Edition
 
Join Date: Mar 2000
Posts: 3,835
My cruise control button is right next to the thumb of my right hand, so it's pretty simple to press. Still, instinct would have me go to the pedals, not the CC button.
uberjoe is offline  
Old 02-03-06, 02:26 PM
  #17  
DVD Talk God
 
Join Date: Feb 2000
Location: Directionally Challenged (for DirecTV)
Posts: 122,463
Originally Posted by uberjoe
My cruise control button is right next to the thumb of my right hand, so it's pretty simple to press. Still, instinct would have me go to the pedals, not the CC button.

Mine isn't on the steering column. It is part of the dashboard on the left.
Red Dog is offline  
Old 02-03-06, 02:28 PM
  #18  
DVD Talk Godfather
 
The Bus's Avatar
 
Join Date: Aug 2001
Location: New York
Posts: 54,812
Originally Posted by Red Dog
I can jump out the car and roll to safety faster than I can press the button to disengage CC.
The Bus is offline  
Old 02-03-06, 02:33 PM
  #19  
DVD Talk Legend
 
Vibiana's Avatar
 
Join Date: Jan 2006
Location: Living in a van down by the river
Posts: 13,654
Originally Posted by Save Ferris
What's wrong with driving with cruise control in the rain?
Nothing, if you don't mind taking the risk of sliding off the road and killing yourself.
Vibiana is offline  
Old 02-03-06, 02:33 PM
  #20  
DVD Talk Platinum Edition
 
Join Date: Mar 2000
Posts: 3,835
Originally Posted by Red Dog
Mine isn't on the steering column. It is part of the dashboard on the left.
Darwin says you lose.

Boo-yah.
uberjoe is offline  
Old 02-03-06, 02:37 PM
  #21  
DVD Talk Legend
 
AGuyNamedMike's Avatar
 
Join Date: Jul 2000
Location: (formerly known as Inglenook Hampendick) Fairbanks, Alaska!
Posts: 15,064
Actually, cruise control systems (at least the one on my car) control speed by regulating the rpms of the drive shaft. If the rpms of the driveshaft decrease, the computer applies more throttle to increase rpms to the set amount. Likewise, if driveshaft rpms increase (as would occur going down hill or when the wheels spin on ice or in a hydroplaning situation), the computer backs off and goes into coast mode until it detects that driveshaft rpms have returned to the set amount. Now, depending on your vehicle's differential, one drive wheel could theoretically go spinning wildly while the other maintains some level of traction as your vehicle slows, causing the driveshaft rpm to remain relatively constant, thus throttle would continue to be applied by the computer. While I don't believe it would "launch a vehicle out of control", I can see how it might delay one's response to a loss of traction event, and consider the advice sound. Do NOT use your cruise control when road conditions inhibit optimal traction. Ice, standing water or even mere wetness, excessive amounts of gravel, unpaved surfaces, sand, all of these can lead to a loss of traction. When driving in these conditions, you should be in complete control of your vehicle and paying extra attention to its operation, including how hard you're pushing the accelerator, as even a handful of milliseconds delay in corrective action could mean the difference between "Whew!" and "AAAAAAAAAAAAAAAAAAAAAAAA!!!".
AGuyNamedMike is offline  
Old 02-03-06, 02:37 PM
  #22  
DVD Talk Platinum Edition
 
Join Date: Jan 2002
Location: IL
Posts: 3,509
Originally Posted by crazyronin
You'll probably find out if you hit a puddle with CC on and started to hydroplane. The only way to turn off CC would only make matters worse.

A.
Spoiler:
You would have to hit your brakes, which would make the skid worse.
Dammit, I crashed because I didn't have the time to swipe that spoiler.
Morf is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.