Brake failure

[Hark]

For everyone doubting the OP, I’m having the exact same issues— and no, I haven’t gotten into an accident, or gotten a ticket and I’m not making it up to get out of legal trouble as some proposed that her son did.

Problem: after being parked, I’ll get in my 2018 JLU and start to drive and the first time I press the brake, it doesn’t do anything. The brake pedal won’t even depress that far, it just stops and feels like it’s slipping on ice just like she said and even makes a weird slipping sound and the car does not stop. After you pump a few times, it goes away and doesn’t do it again while driving— only when first starting it up and only sometimes.

Additionally, my auto start/stop and electronic stability control light came on. They serviced it and said it was a fuse. Two days later, it came back on. Lastly, the rear defroster sauldering was faulty and came undone and so I have no rear defrost until I take it back in for a full fix on everything. Ridiculous. It now has 6k miles on it and this all started around 3400.

Hope you’re all safe. I still love my Jeep but dang— $50,000 was way too much for this “craftsmanship”. My 2018 F250 Lariat was loaded and perfect and built so well. Zero issues. Maybe I’ll just get another one of those.

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[W1ck3d]

Was it cold out?

 

[The Acme Company]

Was it cold out?

Rule number 1–never pump anti- lock brakes!

I’ll throw the yellow bs flag when you say that the pedal doesn’t move that far but the brakes are slipping.

Brake failure would only occur with a full bypass of the master cylinder—the pedal going straight to the floor with absolutely no brake pressure.

Your slipping description tells me the anti lock brake module was activated. When anti locks first came out, we old guys hated them because our first instinct was to pump the brakes to avoid the slippage feeling. The real solution was to stand on them and let the anti locks do their job.

You can stand on an anti lock and drive the pedal to the floor . You will feel the pedal pulse, it may go to the floorboard , but it will stop as designed

 

[Bearded_Dragon]

For everyone doubting the OP, I’m having the exact same issues— and no, I haven’t gotten into an accident, or gotten a ticket and I’m not making it up to get out of legal trouble as some proposed that her son did.

Problem: after being parked, I’ll get in my 2018 JLU and start to drive and the first time I press the brake, it doesn’t do anything. The brake pedal won’t even depress that far, it just stops and feels like it’s slipping on ice just like she said and even makes a weird slipping sound and the car does not stop. After you pump a few times, it goes away and doesn’t do it again while driving— only when first starting it up and only sometimes.

Additionally, my auto start/stop and electronic stability control light came on. They serviced it and said it was a fuse. Two days later, it came back on. Lastly, the rear defroster sauldering was faulty and came undone and so I have no rear defrost until I take it back in for a full fix on everything. Ridiculous. It now has 6k miles on it and this all started around 3400.

Hope you’re all safe. I still love my Jeep but dang— $50,000 was way too much for this “craftsmanship”. My 2018 F250 Lariat was loaded and perfect and built so well. Zero issues. Maybe I’ll just get another one of those.

Sounds like there was no vacuum so the pedal wouldn't move very far using normal pressure, allowing the vehicle to move.

 

[nerubi]

For everyone doubting the OP, I’m having the exact same issues— and no, I haven’t gotten into an accident, or gotten a ticket and I’m not making it up to get out of legal trouble as some proposed that her son did.

Problem: after being parked, I’ll get in my 2018 JLU and start to drive and the first time I press the brake, it doesn’t do anything. The brake pedal won’t even depress that far, it just stops and feels like it’s slipping on ice just like she said and even makes a weird slipping sound and the car does not stop. After you pump a few times, it goes away and doesn’t do it again while driving— only when first starting it up and only sometimes.

Additionally, my auto start/stop and electronic stability control light came on. They serviced it and said it was a fuse. Two days later, it came back on. Lastly, the rear defroster sauldering was faulty and came undone and so I have no rear defrost until I take it back in for a full fix on everything. Ridiculous. It now has 6k miles on it and this all started around 3400.

Hope you’re all safe. I still love my Jeep but dang— $50,000 was way too much for this “craftsmanship”. My 2018 F250 Lariat was loaded and perfect and built so well. Zero issues. Maybe I’ll just get another one of those.

FCA is hiding the fact that every single JL built has had at least one major problem. But thank goodness Ford trucks haven't. Wait, they just recalled 2.3 million pickups. Do you think Kia owners that only pay $20,000 shouldn't expect their cars to not catch fire? Every brand has problems. If you want a perfect vehicle you will never drive anything again.

 

[GhostActual762]

FCA is hiding the fact that every single JL built has had at least one major problem. But thank goodness Ford trucks haven't. Wait, they just recalled 2.3 million pickups. Do you think Kia owners that only pay $20,000 shouldn't expect their cars to not catch fire? Every brand has problems. If you want a perfect vehicle you will never drive anything again.

My god, nerubi maybe there’s some people who bought a Jeep wrangler that aren’t FCA ba11 lickers. You bring absolutely NOTHING to the table to converse about in all the threads you post in other than blame another brand about their issues....but this in infact a JL wrangler forum under the “problems” tab. This person is having an issue, this part of the forums exists soley for people to talk about problems with their shit JL’s.

For everyone doubting the OP, I’m having the exact same issues— and no, I haven’t gotten into an accident, or gotten a ticket and I’m not making it up to get out of legal trouble as some proposed that her son did.

Problem: after being parked, I’ll get in my 2018 JLU and start to drive and the first time I press the brake, it doesn’t do anything. The brake pedal won’t even depress that far, it just stops and feels like it’s slipping on ice just like she said and even makes a weird slipping sound and the car does not stop. After you pump a few times, it goes away and doesn’t do it again while driving— only when first starting it up and only sometimes.

Additionally, my auto start/stop and electronic stability control light came on. They serviced it and said it was a fuse. Two days later, it came back on. Lastly, the rear defroster sauldering was faulty and came undone and so I have no rear defrost until I take it back in for a full fix on everything. Ridiculous. It now has 6k miles on it and this all started around 3400.

Hope you’re all safe. I still love my Jeep but dang— $50,000 was way too much for this “craftsmanship”. My 2018 F250 Lariat was loaded and perfect and built so well. Zero issues. Maybe I’ll just get another one of those.

If this happens often I would cease driving it, if there was pulsing in the brake pedal that would indicate your abs was working but why? This could be due to actual ice and the vehicle was sliding, master cylinder, vacuum issue or it could be a wheel speed sensor out of wack. A bad sensor or master cylinder/booster is not unheard of but if this does this constantly then it needs to be take in and looked at. It honestly sounds like a vacuum issue to me, being on the first start up the booster needs that vacuum and if there is none you get a dead stick. Definitely mention the brake issue/dead pedal when you take it in next!


Don’t pay any mind to some here that think they shit colored FCA JL wrangler brochures or else they’ll want to hand you one lol

 

[W1ck3d]

Probably pumped the brakes 1 to many times and lost pressure ... If its not a reoccurring issue i wouldn't worry about it... Brake failure is pretty rare and there are strict government mandated tests that the factory has to run on the braking system...

 

[nerubi]

My god, nerubi maybe there’s some people who bought a Jeep wrangler that aren’t FCA ba11 lickers. You bring absolutely NOTHING to the table to converse about in all the threads you post in other than blame another brand about their issues....but this in infact a JL wrangler forum under the “problems” tab. This person is having an issue, this part of the forums exists soley for people to talk about problems with their shit JL’s.



If this happens often I would cease driving it, if there was pulsing in the brake pedal that would indicate your abs was working but why? This could be due to actual ice and the vehicle was sliding, master cylinder, vacuum issue or it could be a wheel speed sensor out of wack. A bad sensor or master cylinder/booster is not unheard of but if this does this constantly then it needs to be take in and looked at. It honestly sounds like a vacuum issue to me, being on the first start up the booster needs that vacuum and if there is none you get a dead stick. Definitely mention the brake issue/dead pedal when you take it in next!


Don’t pay any mind to some here that think they shit colored FCA JL wrangler brochures or else they’ll want to hand you one lol

I get tired of the overdramatic hysteria that some have about FCA and how the Wrangler is so terrible when a few people have some issues but they state they are going back to some other vehicle because it never had a problem for them. Discussing a problem logically is a better way to present it instead of the world is coming to an end approach. I have always turned to passive aggressive dialog when someone turns to foul-mouth name calling because they can't defend their position that somehow FCA is the problem. I defend the position that all car manufacturers have problems and that all manufacturers have mostly success so it is illogical to say they are going to go to some other brand because the odds are just as good they won't have a problem with another brand but they may.
If this is a feel good about a problem forum then I acquiesce. But to blame dealers, dealer staff, manufacturers as one collective group of incompetent crooks that is senseless and nonproductive. So go ahead and offer your "opinion" backed by your extensive education and training in the field and make people feel good about not liking their "shit JLs".

 

[GhostActual762]

I get tired of the overdramatic hysteria that some have about FCA and how the Wrangler is so terrible when a few people have some issues but they state they are going back to some other vehicle because it never had a problem for them. Discussing a problem logically is a better way to present it instead of the world is coming to an end approach. I have always turned to passive aggressive dialog when someone turns to foul-mouth name calling because they can't defend their position that somehow FCA is the problem. I defend the position that all car manufacturers have problems and that all manufacturers have mostly success so it is illogical to say they are going to go to some other brand because the odds are just as good they won't have a problem with another brand but they may.
If this is a feel good about a problem forum then I acquiesce. But to blame dealers, dealer staff, manufacturers as one collective group of incompetent crooks that is senseless and nonproductive. So go ahead and offer your "opinion" backed by your extensive education and training in the field and make people feel good about not liking their "shit JLs".

No one here has “extensive education and training in the field” on the JL when 90% of the dealership techs don’t know their head from their ass with the JL , the forum is nothing but a giant think tank to unsolved and repeating issues with this particular Wrangler. Everything here is an opinion otherwise this would be an official FCA forum. You defend FCA like their your child, maybe you have something invested in the name idk or your so brand loyal you just sit here and plug eveyone that says their experience with the product is shit(because their experience is in fact “shit”) while providing zero effort to help the person out. When the dealers don’t know what going on then there is a failure to train from FCA, FCA makes these vehicles. Any problem relating to them is FCAs fault, I want to congratulate you on establishing yet again every vehicle produced no matter make or model will have issues.....hell the guy compared his new wrangler to a vehicle he had prior with zero issues and longs for the day his expensive Wrangler produces the same results.

Try and help out every other thread you post and you’d be half way to creating a better experience for the forum members seeking help.

 

[GhostActual762]

Probably pumped the brakes 1 to many times and lost pressure ... If its not a reoccurring issue i wouldn't worry about it... Brake failure is pretty rare and there are strict government mandated tests that the factory has to run on the braking system...

How many times is to many though? I wouldn’t think pumping the brake 100 times would make it fail or act like brake fade if the engine is running and the vehicle is sitting, if there’s vacuum for the booster it should provide braking.

 

[W1ck3d]

It probably only takes 3-4 continuous times to use all the pressure in the system... You can pump the brakes faster than the system can charge and it doesn't cause brake failure... You will still be able to stop it just feels like what the op said about feeling like youre on ice... I have noticed it in a few when its been super cold outside ive had this problem... It could be something with the cold air thinning out the air as well

 

[W1ck3d]

For some reason i cant quote posts and jts starting to bug me :-\

 

[JeepCares]

@Hark,

I understand that some time has passed since you posted your experience, however, are you still experiencing this? Have you addressed the brake concern with your servicing Jeep dealer? Please send our team a private message if you are in need of additional assistance while in service.

Darlene
Jeep Social Care Specialist

 

[garfieldtcat]

I just turned my new JLUR into the service department this morning to have the brakes checked out:

Symptom: When engaging the brake, I could hear an audible "hissing" type noise while the brake peddle was pushed in as well as for a short time after releasing the pedal to its neutral (up) position. The sound would eventually stop after releasing the pedal, but happen again once pressed. I did not notice any issues with the Jeep's ability to brake, but definitely something worth getting fixed ASAP as I am unwilling to find out what would happen if I just waited to see if the issue would get worst or some how resolve itself.

Some google research led me down the path of the Brake Boost Vacuum Pump being the most likely culprit. About 90 minutes after dropping the Jeep off I received call stating they were going to replace the pump (pretty fast), sadly the part will not be in until tomorrow. I do not really have an opinion on the OP's comments as I do not know if what they described is possible or not, but I have a new JLUR and am having issues with the Brake Boost Vacuum Pump. This does not mean there is a systemic issue with the new JL's vacuum pumps, but from my perspective it is not unheard of to have these fail. Cheers.

My 19 JLUR has developed the same vacuum pump hissing when pressing and releasing the brake pedal. I’m at 3,500 miles. The brakes seem to work fine but I’ll take it to the dealer next week and see what they say about it.

 

[irishtim7]

My 19 JLUR has developed the same vacuum pump hissing when pressing and releasing the brake pedal. I’m at 3,500 miles. The brakes seem to work fine but I’ll take it to the dealer next week and see what they say about it.

I just noticed this hissing on mine tonight when I was checking the third brake light. Just happened to be outside the vehicle while pressing the pedal and heard it. Mine’s at 3k miles. I’ve been thinking for some time my pedal feel had been somewhat mushier than normal but the brakes have never failed They just seem off. Glad I came across this. Looks like I’m going to schedule a dealer visit.

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