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.
2015 Jeep Grand Cherokee Limited
Deep Cherry Red Crystal Pearl Coat