Using cruise control in the rain...?
Using cruise control in the rain...?
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Discussion

Lefty

Original Poster:

21,539 posts

233 months

Tuesday 19th March 2013
quotequote all
Got this sent to me at work...I smell BS. What sayeth PH?



This information was received from Peter Roach, Strategic Programmes Director at Daresbury and has been verified with the Institute of Advanced Motorist www.iam.org.uk

SAFE-DRIVING TIPS WHEN IT IS RAINING!

A good tip:
A 36 year old female had an accident several weeks ago. It was raining, though not excessively when her car suddenly began to hydro-plane and literally flew through the air. She was not seriously injured but very stunned at the sudden occurrence! When she explained to the Police Officer what had happened, he
told her something that every driver should know -

NEVER DRIVE IN THE RAIN WITH YOUR CRUISE CONTROL ON.

She thought she was being cautious by setting the cruise control and maintaining a safe consistent speed in the rain...
But the Police Officer told her that if the cruise control is on, your car will begin to hydro-plane when the tyres lose contact with the road, and your car will accelerate to a higher rate of speed making you take off like an aeroplane. She told the Officer that was exactly what had occurred. The Officer said this warning
should be listed, on the driver's seat sun-visor - NEVER USETHE CRUISE CONTROL WHEN THE ROAD IS WET OR ICY, along with the airbag warning. We tell our teenagers to set the cruise control and drive a safe speed - but what we don't tell them is to use the cruise control only when the road is dry.

The only person the accident victim found who knew this, (besides the Officer), was a man who'd had a similar accident, totalled his car and sustained severe injuries.

NOTE: Some vehicles (like the Toyota Sienna Limited XLE) will not allow you to set the cruise control when the windshield wipers are on.


andy-xr

13,204 posts

235 months

Tuesday 19th March 2013
quotequote all
Like a plane you say??

Lefty

Original Poster:

21,539 posts

233 months

Tuesday 19th March 2013
quotequote all
hehe

I've used cruise control in the rain hundreds of times, I live in scotland FFS. Not once has it ever tried to take off...

Big Fat Fatty

3,315 posts

187 months

Tuesday 19th March 2013
quotequote all
andy-xr said:
Like a plane you say??
It must have been an upside down F1 car yes

thehammer

250 posts

165 months

Tuesday 19th March 2013
quotequote all
im sure a lot of cars fitted with cruise control acctually de activates it if the tration control is acctivated.

Output Flange

17,053 posts

242 months

Tuesday 19th March 2013
quotequote all
So it literally flew through the air?

Amazing.

I use C/C in the rain quite frequently, and that's why I'm dead.

crosseyedlion

2,382 posts

229 months

Tuesday 19th March 2013
quotequote all
Bit of a non issue if theres traction/stability control/fwd too.

So thats pretty much every car made in the last with cruise control 15 years covered.

Was a bit of weary using mine in the wet tho (4.0 v8, no traction control, old (slightly jerky) cruise control)

Dan_1981

18,124 posts

230 months

Tuesday 19th March 2013
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It didn't even need a conveyor belt?

mnkiboy

4,409 posts

197 months

Tuesday 19th March 2013
quotequote all
Every (modern) car with cruise control will cancel it as soon as the wheels start to spin.

Not sure about older cars without traction control. In any case, having the cruise control on isn't an excuse to start ignoring road conditions.

eldar

25,336 posts

227 months

Tuesday 19th March 2013
quotequote all
Seems to be doing the rounds in the energy industry.

Opinion seems to be it is possible, but unlikely if any degree of common sense is used.

Whitean3

2,197 posts

229 months

Tuesday 19th March 2013
quotequote all
Sounds like a load of old b0llocks to me. I wouldn't use cruise control in the snow or in icy conditions (that would be asking for trouble!) but rain- very much doubt it. If there is that much standing water, you'd probably slow down anyway if you're sensible

nickfrog

25,443 posts

248 months

Tuesday 19th March 2013
quotequote all
It does make total sense. Plus, if you spot a large area of standing area a few hundreds meters in front of you and want to lose a bit more speed, it might be quicker and more intuitive to just progressively lift off whereas having the cruise on means that you might not react as quickly and/or fall into a false sense of security and just drive through it with the obvious consequences described in the post.

ChrisDB7

163 posts

186 months

Tuesday 19th March 2013
quotequote all
So cars equipped with cruise control can fly in the wet? Brilliant!

Its bks, using cruise control does not make you any more likely to hydroplane.

HustleRussell

26,685 posts

191 months

Tuesday 19th March 2013
quotequote all
A badly-worded article but not an implausible scenario, In my opinion. It's not inconceivable that on certain cars, the driven wheels could aquaplane and the C/C system could attempt to maintain a constant road speed according to the speed of the drivetrain.

Lefty

Original Poster:

21,539 posts

233 months

Tuesday 19th March 2013
quotequote all
eldar said:
Seems to be doing the rounds in the energy industry.

Opinion seems to be it is possible, but unlikely if any degree of common sense is used.
I suspect it originates in 'merka.

Nuff said.

RobM77

35,349 posts

265 months

Tuesday 19th March 2013
quotequote all
Motorways in the rest of Europe carry signs telling you not to use cruise control in the rain. Naturally, in the UK we don't have any road safety policies other than lowering speeds so the millions of accidents people do have, because they're undertrained clueless idiots, hurt less. Anyway, back to the point: yes, cruise control on a wet road is a bad idea, but as said above, most cars have traction and stability control systems which de-activate the cruise control when they're triggered these days, although one shouldn't rely on them and yes, I never use cruise on very wet days.

However, flying through the air straight away when you aquaplane? WTF?! biggrin

ging84

9,548 posts

177 months

Tuesday 19th March 2013
quotequote all
I used cruise control in the rain and i died
twice

Output Flange

17,053 posts

242 months

Tuesday 19th March 2013
quotequote all
eldar said:
Opinion seems to be it is possible, but unlikely if any degree of common sense is used.
Hmmm.

So you set the c/c to 70mph, the car hits water, the car slows down, the c/c system opens the throttle to compensate, the tyres are unable to grip the road because of the water, and the car takes off? No.

With no T/C intervention I'm sure it could cause a spin, though.

BelperJim

2,505 posts

214 months

Tuesday 19th March 2013
quotequote all
Lefty said:
your car will begin to hydro-plane when the tyres lose contact with the road, and your car will accelerate to a higher rate of speed making you take off like an aeroplane.
Once you've harnessed the cruise controls ability to make the car take off like a plane. You'll never need to worry about costly flight fees and waiting around in airport terminals ever again.

HustleRussell

26,685 posts

191 months

Tuesday 19th March 2013
quotequote all
ChrisDB7 said:
Its bks, using cruise control does not make you any more likely to hydroplane.
Where does the article say that?