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Electronic Stability Control (ESC) Indication Light Issue

106K views 27 replies 17 participants last post by  Dog Patch Steve  
#1 ·
I have an issue with my Electronic Stability Control (ESC).

The ESC indication light is turning on SOLID (not flashing) which according to the owners manual indicates an issue with the system itself, whereas flashing indicates the ESC was activiated due to a driving condition (slippery conditions, losing grip etc.).

Details of what is happening:

-This solid ESC indication seems to turn on while coming to a complete stop at low speeds, most occasions were after pulling into a driveway.
-The indication light is accompanied by a faint and intermittent buzzing sound, which resembles a electric motor or servo.
-The indication light does not turn off unless I turn off the engine and ignition.
-With the ESC light on solid, pressing the ESC off button on the dashboard does not change anything, nor does the "ESC OFF" indication light come on. (This may be normal response since you shouldn't be able to overide ESC when it is active and in operation).
-Once shutting the engine down and clearing the fault, I am able to turn off the ESC with the dashboard button.
-With ESC OFF (ESC OFF indication illuminated), the fault still occurred on 1 occasion so far.
-The issue is sporatic, it has only occured about 5 times in the last week, usually in the mornings on a cold engine or short trip.

The buzzing sound in particular concerns me as it sounds like something is working or engaged when it shouldn't be. For the most part I have not driven with the solid ESC indication on (I shut the car down and reset it before driving further), this morning the light came on as I approached some traffic and I had to drive about 5 mins before I had the opportunity to safely pull over and reset it.

Has anybody experienced this? I plan on bringing it in to the dealership this week hopefully, we will see if they come up with anything.

The vehicle is a 2011 GL Auto (Canadian model). It has about 15,000km (9000 miles) on it.
 
#2 ·
Ive been experiencing something similar but different. The ESC light is illuminating when I turn my car on and I can't shift the car into gear. I have to turn off the car, sometimes repeatly in order to shift into drive. It has happened three times. Im going to call Hyundai tomorrow to make an appointment with service.
 
#10 ·
Thanks for the follow up dneg519. Do you have any more details regarding the recall or TSB? What does it entail and did you have it done?

Any chance they are referring to the Transmission Control Module TSB? I had the TCM re-program TSB completed last oil change.

Note that I have not experienced the ESC light indication since I started this thread 8 days ago.
 
#7 ·
THe ESC issue also could possibly be caused by a defective brake pedal switch. This can also cause inability to start the car. Have your dealer check this possibility.

In many cases this problem starts intermittently, and get progressively worse. This is what happened in my case. Once the part was replaced, no issues.
 
#9 ·
This is correct, and the most likely scenario. As the King of Brake Switch Failures, I can tell you that this is precisely how each one of my dozen-plus failures (in the 2006 and 2011 Sonatas) have started. I had the exact same buzzing sound followed by the activation of the ESC light which was steady and not flashing.

On a few occasions the light would go out after a few days, this was only temporary and it would come back on thereafter. After a little while the car would no longer shift out of park and could not be started by the push-button switch (since the car requires the brake pedal to be pushed in order to activate the engine)...in enough time I am willing to bet this would happen with yours as well.

If this turns out to be the problem, please let us know. Good luck! :)
 
#8 ·
I recently installed a Hyundai remote starter in my Brother in laws '11 GLS and soon after his light started to turn on intermittently and the shifter would not shift out of park, but started fine. I told him while this was happening to check to see if his brake lights were working and he said they were. After a few key cycles he restarts the motor and the light is back to normal. I told him also it sounds like a brake switch issue (GLS has key no PTS).
 
#13 ·
I have had a slightly similar problem. While driving on the highway my ESC light will come on blinking and eventually go solid (perfect weather no rain). The first time it happened I pulled over and restarted the car. The second time it went away after 5 or 10 minutes. I've also had one occurrence where I couldn't start my car because it wasn't detecting me pressing the brake. Perhaps I need to take it in for the brake switch problem...
 
#14 ·
--- my ESC light will come on blinking
Scan it for code(s),, see what you got, go from there..

--- I've also had one occurrence where I couldn't start my car because it wasn't detecting me pressing the brake.
See what you come up with in regard to the scan,, very well may find a 0504 in the PCM or 1513 in the ABS/ESC module

---Perhaps I need to take it in for the brake switch problem...
Have dealer run the PCM and ABS/esc modules for codes, see what they find.

Warning lights... scan it.
 
#24 ·
bumped up



I still have this ESC light ON and am living with it for now. We'll see how long i can tolerate staring at a warning light.

There are multiple inputs to the ESC system and it is impossible to diagnose them without the proper tools (thanks to sbr711 for educating me on that)

FWIW, dealer wants 98 + tax just to look at it. Said they will scan modules for DTC codes and see what it tells them...

thank you hyundai
 
#22 ·
Please Go to SafeCar.Gov and check your vehicle's VIN number. There is an open recall, Campaign 137, for the ESC Sensor, which may also apply to your vehicle. You should have received notification if affected, but check to be sure. Regardless, as others have mentioned, get your car to the dealer ASAP.
 
#23 ·
EEEEEEEEEEE... wrong answer..

137 is for UD/MD Elantra...

Yaw Rate Sensor,, scan, certain DTC found, replace sensor.. Update HECU,, scan again, no DTC,, BYE BYE,,, DTC, calibrate Yaw Sensor


Outlined in the UD/MD forum a week or so ago