Automotive

Elantra accelerator briefly stopped working on the freeway

  • Last Updated:
  • Aug 13th, 2017 11:14 pm
[OP]
Newbie
Jul 12, 2017
16 posts
5 upvotes

Elantra accelerator briefly stopped working on the freeway

Hi. While I was driving my 2013 Elantra on 407 today, the car swerving light by my odometer started to flash and my accelerator briefly stopped working and then worked right after. It did this a few times until I pulled over to the side, turned off my engine and turned it back on after a minute. I tried going through the Hyundai forums but no one seems to know anything about it. Did anybody else have this issue? I'm going to take the damn car back to the dealer and thankfully I'm still under my warranty. This is atrocious. These stupid Elantras come with so many problems.

But yea if anyone knows anything about this sort of problem, I'd like to learn more.
30 replies
Sr. Member
Dec 25, 2006
674 posts
626 upvotes
Winnipeg
Something is wrong with the car's anti-skid/traction control/vehicle stability control. Could be g-sensors, abs sensors or any number of things. Good luck getting it fixed if it isn't happening when you take it in to a shop.(unless there's a repair/recall bulletin on it)
People will believe what they want to believe whether fact or fiction.
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Deal Addict
Jun 14, 2008
4247 posts
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Montreal
Does that year have drive by wire throttle or still cable linked?
Deal Expert
Aug 22, 2011
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Center of Universe
Traction control is kicking in.
Turn it off, for the time being.
[OP]
Newbie
Jul 12, 2017
16 posts
5 upvotes
And then do what? Am I not able to drive it? You think I should have it towed to the dealer?
Deal Addict
Jun 19, 2009
1031 posts
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Toronto
Was there a patch of water or something that you hit at high speed that may have triggered the light indicating traction/stability control? You should be able to turn it off and continue to drive it without any issues. The traction/stability control system just won't kick in to assist you anymore in case of any traction loss to apply brakes/cut throttle for you, which shouldn't be much of a problem since's not winter. It is best you get it looked at though.
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[OP]
Newbie
Jul 12, 2017
16 posts
5 upvotes
There was heavy rainfall in Toronto.
Deal Addict
Jun 19, 2009
1031 posts
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Toronto
If it came on because you hit a patch of water that was deep enough to drag one side of your car enough to cause the light to turn on then it is functioning fine and you just need to read up about the safety systems of your vehicle.
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Jul 30, 2007
32088 posts
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Toronto
Hydoplaning and/or due to balding tires ?
Deal Guru
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Mar 13, 2004
13235 posts
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Ontario
So this happened while you were driving in heavy rain today?

if so then the car is working fine, it cut power because your tires were slipping & had no traction (probably in deep water like a puddle). You may have cheap or worn out tires which would cause this, does not sound like there is an issue with the car.
omaroz92 wrote: There was heavy rainfall in Toronto.
Deal Addict
Jun 19, 2009
1031 posts
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Cars with AWD systems still have traction/stability control systems so no it would not be any different. AWD is more for redistributing power to wheels that have traction while stability/traction control is all about cutting power to maintain control.
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Dec 24, 2005
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[..]

sounds like you slipped, lost traction and your car corrected and saved you without you noticing.
Last edited by MrDisco on Aug 12th, 2017 8:32 pm, edited 1 time in total.
Reason: No need for that
[OP]
Newbie
Jul 12, 2017
16 posts
5 upvotes
No. [..]. None of that happened.
Last edited by MrDisco on Aug 12th, 2017 8:37 pm, edited 1 time in total.
Reason: No need for that
Sr. Member
Dec 25, 2006
674 posts
626 upvotes
Winnipeg
milolai wrote: [..]

sounds like you slipped, lost traction and your car corrected and saved you without you noticing.
I guess you didn't actually read his original post. It happened multiple times until he pulled over and cycled the ignition.
Last edited by MrDisco on Aug 12th, 2017 10:10 pm, edited 1 time in total.
Reason: Quote edited
People will believe what they want to believe whether fact or fiction.
'tis most frustrating when they aren't open to see and/or learn which is which.
Deal Fanatic
Dec 24, 2005
5766 posts
1604 upvotes
warpdwhim wrote: I guess you didn't actually read his original post. It happened multiple times until he pulled over and cycled the ignition.
there was heavy rain.
he was probably hydroplaning
[..]
Last edited by MrDisco on Aug 12th, 2017 10:12 pm, edited 1 time in total.
Reason: No need for that
Deal Expert
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Feb 11, 2007
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OP, sounds like you were driving in the rain through puddles and either you were going too fast for the conditions or your tires are low on tread. If you have the same issues in the dry, then maybe your ABS sensor is failing or the tone ring it senses is damaged.
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Deal Guru
Jun 11, 2005
13589 posts
2992 upvotes
Toronto
the car was designed to do that. That's why you couldnt find any info on it. lol. Sort of like asking why my ABS kicks in when I'm braking in heavy snow.
Deal Addict
Nov 28, 2013
1303 posts
503 upvotes
London, ON
like others have stated the esc kicked in, and you somewhat lose throttle response .
happens in snow too, and the car corrects itself.. while it is correct itself you sometimes lose input so your car doesn't go crazy
Deal Fanatic
Jun 26, 2007
5955 posts
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???
The indicator you saw was the stability control indicator that kicked in. Stability control cuts off all power by electronically deactivating the throttle. The design is so during limited traction events where the abs wheel speed sensors detect high amounts of traction loss through sudden delta of wheel speed on one wheel compared to other wheels, it will cut power so the wheel doesn't get more power and continue to slip more. By cutting off engine power the wheel will reduce in speed and come back into the range of traction capable from the tires for the current condition.

Based on what you have said, it's quite possible that a hydroplane situation was occurring.

Contrary to popular belief you do not have to hit large puddles to hydroplane.

As long as there is more water than the tire is able to displace then a hydroplane condition will occur.

Simple formula is this.

Amount of water : Tires ability to displace water : Speed

This is what happened to you:

More speed + condition of tire = less amount of water displaced = no traction

Have your tire tread depth checked, if it's below 4/32nd it's ability to displace water at higher speeds is greatly reduced from even 6/32nd. Tire wear vs performance is not linear it is exponential. That means if tire tread is at 50% of its new life, does not mean operates at 50% reduced performance. It's closer to 70%

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