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Old 10-07-2015, 08:06 AM
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Traction control light down hills

I've been noticing that when I coast down a hill... Semi steep but not a crazy hill... My traction control light will blink. It's been happening when the roads are dry, no sand or real bumps. I've recreated it many times and on different hills. I normally see it around 2000 rpms. Anyone ever notice this? Is this a dealer visit problem?

Thanks for any help.


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Old 10-07-2015, 10:52 AM
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Re: Traction control light down hills

Do you have any difference in tire pressure or wear? Brakes in good condition? Hopefully the fix is not a huge hassle. Good Luck
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Old 10-07-2015, 11:08 AM
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Re: Traction control light down hills

Tires are pretty much evenly worn and I keep them all at 38 psi, I check a lot. The brakes are good but I get a lot of squeal at low speeds which has been very annoying. I only have 27 k on the GC and it's mostly highway.

Nothing happens when the traction control light blinks, I don't feel the jeep doing any corrective actions or anything.


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Old 10-10-2015, 12:02 PM
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Re: Traction control light down hills

Does this only happen going downhill or at other times, too? For example, while you mention you aren't hitting any bumps when going downhill, does it happen when you actually hit one on a flat surface?

If so, it could be a loose connection aggravated by vibration or tilting of the vehicle.

If it only happens when going down hills, it could mean you have liquid infiltration that causes the sensor to trigger when it flows forward onto the conection while going down hill. Or, it could be something not secured properly that either presses against something or partially disconnects something when gravity forces it forward.

One thing to try might be to find a clear road with a long downhill and pop the Jeep into neutral. In theory, if it's a mechanical issue, the light shouldn't trigger because traction control shouldn't be activating in neutral. If it's a sensor issue, it should still trigger as it has been.

You may be able to get the same result by jacking up the back end with the engine running. A sensor issue should still cause it to flicker at the right angle.
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Old 10-14-2015, 02:54 PM
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Re: Traction control light down hills

Quote:
Originally Posted by NetworkTV View Post
Does this only happen going downhill or at other times, too? For example, while you mention you aren't hitting any bumps when going downhill, does it happen when you actually hit one on a flat surface?

If so, it could be a loose connection aggravated by vibration or tilting of the vehicle.

If it only happens when going down hills, it could mean you have liquid infiltration that causes the sensor to trigger when it flows forward onto the conection while going down hill. Or, it could be something not secured properly that either presses against something or partially disconnects something when gravity forces it forward.

One thing to try might be to find a clear road with a long downhill and pop the Jeep into neutral. In theory, if it's a mechanical issue, the light shouldn't trigger because traction control shouldn't be activating in neutral. If it's a sensor issue, it should still trigger as it has been.

You may be able to get the same result by jacking up the back end with the engine running. A sensor issue should still cause it to flicker at the right angle.

Thanks for the response... So it only happens going down hill, I have never seen it come on for other reasons. Other than snow or similar conditions.

I tested out you'r neutral idea and went down the same hill that always causes the light to go on and it did NOT turn on. Stumped.


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