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You are watching: Jeep cherokee brake light on dash


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So i just gained to Quebec (9000 miles on my 2012 JKU) and after a if of the freezing temps, the BRAKE light come on (ebrake not touched and completely disengaged) and also stays on. Ns parked the rig overnight in the hotel"s garage, began this morning, every is well. Drove about 3 miles, boom, lights back up. Brakes occupational fine, ebrake works fine, yet the light continues to be on. Might it be that part salt/water is tripping the sensor? any thoughts?
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From the primitive inspection ns was may be to carry out in the hotel garage, the brake liquid seems untouched, perfect level. Felt approximately the inside of the wheels, no authorize of fluid. After ns made this original article (I just got back from driving approximately in the mountains) ns went back downstairs come the garage and checked the above. After completing the check, I started the Jeep, no light. The garage is heated. It seems that ~ driving about in the cold, the light come on. This did not happen back home at all (much warmer in NJ than below in Quebec (7F) and also the salt right here is insane. My Jeep watch white now. It really seems prefer there is a "bridge" ~ above the sensor of salt/water, I just wanted to know if it is feasible that the irradiate is being tripped by any type of of this.
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After another day that driving/parking, it seems once the jeep warms up, the problem goes away. As soon as ns drive because that 10/15 minute in the arctic chill, the light come on. I recognize bringing it to the dealer is pointless since they won"t carry out squat since they can"t replicate the problem. I guess I will certainly wait until I gain to Jersey and also see if the problem goes away....although i don"t prefer the reality that this light will come on everytime ns am in a cold climate.
After one more day the driving/parking, the seems when the jeep warms up, the problem goes away. As quickly as i drive because that 10/15 minute in the arctic chill, the light come on. I know bringing it to the dealer is pointless since they won"t carry out squat due to the fact that they can"t replicate the problem. I guess I will wait till I acquire to Jersey and see if the problem goes away....although i don"t prefer the reality that this light will come ~ above everytime ns am in a cold climate.
My critical jeep did that. I necessary wheel speed sensors and a cleaned out hub because the sensor damaged off into the hub. It was a mess.
No, no wash. I washed the jeep in ~ home prior to I left and then drove 600 miles to quebec. Thats where the problem started. Jeep is at this time covered in salt and also slop (slush) i m sorry melts turn off in the garage. My hesitation is the salt is law something v the sensor, but who knows.As because that wheel rate sensors, I think other symptoms would certainly arise, including a malfunctioning ESP no?
The brake liquid viscosity is an altering in the COLD cold weather. The warms up and returns come it"s organic state. Try insulating the reservior.Bob K.
It brake fluid isn"t changing. It"s much more a salt issue. Ns drive mine daily and also it"s remained in the negative in temps.
Wheel rate sensors will impact ESP and BAS triggers before the brakes. Might be salt/debris in the rear drumheads? I pointed out the brake liquid viscosity from my endure in Ft. Greely AK.Bob K.
The brake fluid viscosity is changing in the COLD cold weather. That warms up and returns to it"s natural state. Try insulating the reservior.Bob K.
This would certainly be odd due to the fact that the reservoir is under the hood, therefore the longer I drive it seems the warmer it gets (unless the fluid in the exterior lines is gaining supercooled quickly.)I still suspect it is a salt/water worry messing roughly with the sensor. Anyone know where the sensor is situated that feeds the BRAKE light on the dash? I may clean it thoroughly as soon as I get home, and also throw a few coats the plastidip on there to defend it.

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DESCRIPTION 07-09 JK
The park brake move (1) is located on the park brake bar mechanism on the floor panel transmission tunnel listed below the center floor console. This switch contains a spade-type output terminal (2) that connects the move to the automobile electrical device through a devoted take out and also connector that the instrument panel cable harness. The calculation terminal is integral come the stationary contact within a molded plastic insulator. A locating tab (4) top top the insulator engages a slot in the park brake lever mechanism for hopeful switch location. Outside to the insulator is a movable leaf call (3) through an integral grounding lug on one end and an integral actuating lever and also follower on the opposite end. The switch is secured to and grounded by a solitary screw come the park brake lever mechanism. The park brake switch cannot be adjusted or repaired and, if ineffective or damaged, it should be replaced.