Disclaimer: Not affiliated with or endorsed by Honda Motor Company. For informational purposes only. Full Disclaimer

Problems with 2018 Honda Accord SERVICE BRAKES

On average, the 2018 Honda Accord starts to “feel” problems with the SERVICE BRAKES and its various aspects after 11 513 miles.

Recently reported SERVICE BRAKES problems on 2018 Honda Accord

Collision mitigation braking system activated for no reason, on surface roads and highway speeds, vehicle slammed on brakes automatically, there is nothing on the road in front of the car. this has occurred numerous times. dealerships told me that there was no registration in the warranty system because they were unable to fix the problem so no record of this problem was sent to honda usa.

Collision mitigation braking system problem while on cruise control it will disengage and this error will show up also braking light flashes on and off with nothing around or near the sensors.

The collision mitigation braking system has completely failed twice on my month old 2018 honda accord. when this fails, the cruise control is also deactivated. both times the car was in motion with the adaptive cruise control active.

I live in rochester ny and even with very light snow that is not even collecting on the roadway i get an urgent notification that crash avoidance and any radar based safety systems are compromised and not available at this time. this is due to the radar unit being interfered with snow collection as it is in the shape of a square cup and it collects snow like a scoop. there is no heating element on the unit at all to keep it clear of snow and it's location is such that it is rendered totally useless in any snow what so ever. bmw, mercedes and audi all either have hidden their units behind items that are heated for northern climates or the radar unit itself is gently heated below a particular temperature to avoid loosing all safety systems. this is simply not acceptable in a modern car and i would ask nhtsa to look into with honda recalling all northern cars to change the radar unit to a heated version or to relocate it behind an emblem or something that doesn't collect snow like a scoop. it is a very poor design and impacts all distance and crash avoidance systems present on the vehicle. this is a 2.0 touring edition with every available option so it is not for a lack of spending money for safety that's for sure. the dealer said they have received many complaints about this same issue and are telling people it's made that way and frankly the sensor should be heated in northern climates. nice!

Driving down the road at 75 miles an hour and the brake system engaged. no cars around. had another vehicle (especially tractor trailer) there would have been a serious collision. i do not want this vehicle anymore. dealer says its not a warranty problem. serious safety concerns

Since purchasing the vehicle in july and especially over the course of the last two months the car has been exhibiting errors with the cpu (honda sensing) system on board. the transmission also seems to exhibit issues which i have taken up with the dealership on two occasions where it appears to shift hard under light acceleration and even under passing power. also, upon accelerating, the car will seem to bog down like it has a air intake issue(sensation feeling) it does it from stop and go at times and also when at speed. i have noticed that when it rains it seems to be even more pronounced as well. the other issue has been the honda sensing. as of late i have found myself turning off certain "safety" features out of fear of them malfunctioning after two freak incidents. twice when at speeds on the hwy, the emergency mitigating brake has engaged with no traffic around or in front me, basically slamming on the brakes which is extremely dangerous another time the steering has tried to yank me into another lane thinking i have gone off the road, the road mitigation system. these issues could have proven very dangerous in both situations if vehicles were next to me or behind me and these issues with a brand new car are not making me feel safe to drive the car. also, another new item which i have caught on camera is the radio head unit has now began to shut off intermittently during normal operation for no apparent reason or cause. i have had the recall on the back up camera completed already. but these errors still continue. the car is going to the dealership on thursday, 11/7/2018 to get these looked into, but this is the 3rd time the car has had to go to the dealership since purchase in july for non regular maintenance. i am going to only deal with this a few more times before i hire a lemon law attorney.

Automatic emergency braking took car from 60 to 0 on highway (route 65n in nashville). luckily no one was behind me (it was 6am) or i could have been rear-ended. i could not accelerate or control the car at this point and came to a complete stop. this is the second time this has happened in the last month. this turns a touted safety feature into a hazardous feature. planning on a dealer visit this friday

The car has a sensor for breaking. on several occasions i have been driving and the car breaking system comes on making the vehicle come to a sudden stop. during several of these dangerous breaking events no vehicles or objects were in front of me. i have almost been rare ended because of the breaking. i have noticed that even s shadow from a tree can trigger the sensor to make the breaking system turn on making the car come to a sudden stop. this is extremely dangerous and there is no way to turn this feature completely off. when you turn it off it resets once you turn the ignition to start the car again. this recall needs to happen now before someone gets injured or killed.

While driving with the cruise control on the collision mitigation and braking system will intermittently turn off and disable the cruise control. dealer says nothing is wrong, claim the sensors are overloaded. this can happen on bright sunny days, cloudy days and at night. sensor on front of car is clean; no bugs, smears or liquids. will reset with a stop/start of the engine. code check revealed. uo401-53 temporary stop of integrated driver support system -- received stop request by pgm-fi system. error code 401-93 temporary stop of integrated driver support system -- received stop request by pgm-fi system. this happens only when the cruise control is on and moving. this has happened at least 12 times in the past 8 months, most recent was today.

5 braking error messages appeared after being parked for 4 hours: electric parking brake system problem, brake system problem, brake hold system problem, anti-lock brake system problem, vehicle stability assist system problem. all errors directed me to "see your dealer". the vehicle operated perfectly prior to this. i was unable to start the car or even lock it after these errors appeared. the battery was also drained because these messages kept appearing.

Failure of front crash mitigation, lane deparure mitigation system while car is moving. sudden deceleration from engine to electric at highway speeds.

Tl* the contact owns a 2018 honda accord. while at a stop light, the vehicle stalled and the transmission and brake warning indicators illuminated. the vehicle was restarted and was able to drive normally. the vehicle was taken to honda of concord (located at 7650 bruton smith blvd, concord, nc 28027, (704) 774-4538) to be diagnosed, but a failure code could not be found. the vehicle was not repaired. the manufacturer was not notified of the failure. the approximate failure mileage was 37,000.

Monday september 24th, 2018, i was traveling on u.s. highway 19 and a vehicle turned off about a half mile ahead of me while i had the cruise control engaged. the vehicle had completely cleared the road and my car slammed on brakes causing everything in the vehicle to be thrown into the floorboard. had there been a car behind me, the car would have rear-ended my vehicle. there continues to be an issue where the sensor recognizes something in the road that is not there or a vehicle that has already cleared the road and slams on brakes. this creates a serious safety issue and is damaging on the brakes. i do not feel safe driving with this system engaged because i do not know when the vehicle will slam on brakes causing other drivers to rear-end me.

Purchased accord 8/25/2018, 103 miles on car at time of purchase. driving that same night ast around 30mph on residential 2 lane road. car came to a complete stop on its own. collision mitigation system error came on dashboard. took to dealer 8/27/2018. dealer reset the system and told us everything okay. seven days later car came to a complete stop identical to 1st incident. cms error came on again in addition to total electrical system failure. took to dealer, they replaced the mother board and reset the cms as well. 9/16/2018 - traveling on 4 lane hwy at 50 mph. car activated brakes again and brought the car to a complete stop. this incident almost resulted in a rear end collision. driver behind was able to swerve and avoid hitting us. each incident there was no drivers ahead of me, no animals/items crossing path. completely random and cannot willing replicate. 9/18/2018 dealer is now coming to pick the car up and work with honda engineers to determine the issue. this a a huge safety concern that will at some point cause serious injury to operator and other drivers on the road. honda must recall this feature immediately. we have also contacted the iowa atty general office to report issue.

Reverse camera quit working and auto matic breaking bros out alpha known when using cruise control

I was driving down a busy road in my town and no cars were in front of me and i did not lane departure at all and the car suddenly came to a complete stop almost for no reason thankfully no cars were behind me. this also happened again when i was on the freeway there was no car in front of me and the car behind me was coming up fast luckily they noticed my car braking and got over. sometimes my computer system shuts off and my radio and my whole dash if frozen i can't do the touchsceeen or any of the side buttons as none of it will work they only way for it work is to turn my car off and turn it back on. the backup camera also takes a while to go on i put my car in reverse and the screen is black and i put it in park and reverse again and it works perfectly fine.

On several occasions this cars collision mitigation system has applied the brakes without any reason and this is a very serious safety issue for the public at large and needs immediate attention from honda. i've seen some complaints about the 2017 and 2018 crv doing this exact same thing.

I have gotten the warning on my dash stating "collision mitigation braking system problem. see dealer" several times per week since putting about 1200 miles on the car (feb 2018). since seeing this warning my car will slam on the brakes at random (during highway and city driving) as if it detected a vehicle in front of me but there was no vehicle present. i have taken the car to the dealer several times and have gotten no solution. i have also called honda north america and filed a complaint and still have gotten nowhere. this issue could easily cause an accident and i have spoken with other owners having the same problem and even someone who has been rear-ended because of this.

The car randomly slams on brakes caused by the honda sensing collision mitigation system. this is very dangerous

Tl* the contact owns a 2018 honda accord. while driving 70 mph, the brakes seized when the brake pedal was depressed. during the most recent brake failure, the vehicle hopped a curb and the front and rear driver's side tires became damaged. the vehicle was taken to an independent mechanic for the tire repairs. the vehicle was then taken to coral springs honda (9400 w atlantic blvd, coral springs, fl 33071, (954) 369-4679) to be diagnosed, but the failure could not be replicated. the vehicle was not repaired. the manufacturer was made aware of the failure and provided a case number. the failure mileage was 21,800.

*****asterisks are used in case your system does not support paragraph separation. *****while traveling on the highway with lkas on and lane markers registered (per the readout on the instrument panel), the vehicle will attempt to steer toward the very edge of the lane near a large vehicle (pickup truck, semi, etc). if allowed to continue while allowing the system to control the steering, the vehicle will maintain this position. *****while driving on the highway with the honda sensing suite on, the vehicle will occasionally register tar patches and skid marks as lane markers and road departure mitigation will attempt to steer away from the marking which means the vehicle may or may not attempt to leave its current lane. *****the above are reproduced daily, one of which almost caused an accident by attempting to steer into (and almost reaching before i could react) the pickup truck in the next lane. *****incident occurred one time: during heavy braking on the highway to avoid a read-end collision, the vehicle attempted to leave its lane. vehicle has approximately 6500 miles on it at the time of writing and was purchased in may of 2018.

The check tpms system light comes on. tire pressure is fine.

I purchased the car july 3rd, 2018. driving on a trip at around 900 miles and had the adaptive cruise control engaged. the car made a beeping sound and the cruise control powered off. a message came up stating collision mitigation breaking system needed to be serviced. the cruise would not come back on. when i arrived at the destination i turned the car off, and upon turning it back on the warning was gone. i drove home with no problem.

My car `collision mitigation braking system` has gone out several times. my car has rattling sound from the sound system in cold days. my car also has rattling sound when driving on road bumps.

Just like others have said, i'm also having an issue with the sensitivity of my brake pedal. the brake feels like there are steps to it instead of a smooth linear pedal. i have never driven a car with a brake pedal like this. from the first stop leaving the dealership after buying my 2018 honda accord 1.5, i knew something was wrong with the brakes. the pedal feels binary like the brakes are either on or off and not smooth and linear. it's either full brake or no brake and no in between. there are steps to the brake pedal and it makes it impossible to brake smoothly. this has caused back pain and if the accord i test drove felt that way, i would have never bought one. i drove a friend's 18 accord and it didn't feel that way at all. it's been to the dealer twice now and i told them the brake booster is likely the issue and they've just pushed back with "it feels fine" or "it needs to break in". will be opening a complaint with honda of america.

I was driving straight down a residential street, accelerating and the braking system automatically stopped the vehicle and the transmission automatically went into neutral. the car motor was still running but the car was inoperable. the gearshift indicated the car to be in drive but would not accelerate. i moved through the automatic gear shift selections but nothing happened. the dash brake failure contact dealer light appeared, then transmission failure contact dealer warning light appeared. i called the dealership and was instructed to turn the car off and restart, which i did. the car restarted, there were no warning lights and i was able to drive the one block to home. the dealer told me to drive it to the dealership which i did not do as i did not feel it was safe. it was fortunate i was not on a freeway or in traffic as i most likely would have been rear ended because it came to a complete stop unexpectedly; for no apparent reason and no notice like brake stop lights to warn other drivers the car was stopping. i had the car towed to the dealership. i was informed that the transmission needed to be replaced.

Collision mitigation braking system problem. see your dealer. warning light. vehicle in motion in a round about turning right. light stayed until car was turned off. then light was off.

On 3 seperate occasions the car has seen a shadow on the ground and slammed on brakes then releasing for no reason. there were no other vehicles around me on each occasion. i thought the car was stopping on a yellow light on the first incident but was told by the service manager that it doesn't do that. this is a very dangerous issue that needs to be addressed. i asked the service manager to disable it but was told he can't do that when it is possible because this is an added feature.

Car has a safety sensor system called cmbs (collision mitigation braking system) that is supposed to help you avoid collisions. on 2 occasions this braking system has engaged for no apparent reason causing the car to brake abruptly in traffic creating extreme accident potential.

At 670 miles, i was driving slowly around a corner when i heard a long beep followed by a "collision mitigation braking system problem. see your dealer" message. the adaptive cruise control also stopped working. i restarted the car and the error went away. about a week later at 813 miles, i was driving in a straight road at 55 mph with the adaptive cruise control engaged when i heard a long beep, the adaptive cruise control disengaged, and i received the same error message as before. restarting the vehicle clears the error and allows the adaptive cruise control to work again until the next time it occurs. both times this has happened were on warm, sunny, clear days with dry roads and no obstructions in front of the radar or camera units. yesterday, the cmbs failed to alert me to a four-wheeler that drove across the street in front of me and it seems less sensitive at detecting other vehicles now - even when there are no error messages or warning indicators present.

On may 25th, i was driving on the interstate when i noticed the brake warning light flashing on the dashboard. i was the only vehicle on the interstate when the brake warning light appeared. on may 29th, i took my car to a local dealership for an inspection. the dealer did not find any errors when they put it on the computer.

May 13th, 2018 driving on the highway doing 50-55 going eastbound on the bay bridge in san francisco -'out of no where' the electric parking brake came on! and i didn't push no buttons! not quite sure of the malfunctioning, but it cost an accident' cause someone hit me from behind! also my airbags didn't deploy, but when honda link assistant called and we was told- 'they sense an accident cause of deployed airbags.' i'm afraid to drive a car that nearly killed us.

The transmission does not shift correctly on the 10speed it jerks and shutters all the time in first thru 5 th gear the brake booster makes a clicking noise when stopping movin it from drive to park to neutral the transmission shutters when in several gears and bangs you head against the head rest the rear seat leather was bit stitched correctly

Brakes pedal making a loud thumping sound. dealer will not fix. since it involves brakes i feel it should be investigated further.

The braking system hesitates and grabs. it is like there are several stages or steps in the brake. it is almost impossible to stop smoothly. as you press the brake pedal in, the car doesn't slow normally until you hit a "step" or "notch" and then it just slows down rapidly and you go forward in your seat. this problem began as the vehicle had around 400 miles on it. the vehicle did not have the problem when i took it off the lot the first time, and other new accords i have driven do not have the problem.

Brakes do not stop smoothly, there is a dead spot in the brake pedal that takes extra pressure to get the car to stop. makes the car stop suddenly when trying to brake smoothly. dealer acknowledged the problem and replaced the master cylinder with no fix and now dealer says they neex to wait for american honda to allow them to replace the brake booster that have been successful for others on honda forums

I am experiencing brake pedal issues. as i put pressure on to slow down, at any speed, it feels like the brake pedal gets "stuck", then it grabs hard and lurches you forward in your seat. as i relieve my foot off and put pressure back on, it does the same thing: the pedal seems to go down in "stages". i cannot brake in a normal, smooth fashion. i have taken the car to the dealer that i bought it from twice in 2 weeks and they have stated both times that none of their staff can duplicate the problem and it has not been resolved as of 3/7/18. the problem was first documented with around 200 miles on the car.

Three times during the first 1500 miles the collision mitigation braking system has failed, disabling that feature and adaptive cruise control, displaying a large diagnostic on the electronic dashboard and telling me to see my dealer. in all cases i was driving in normal traffic on northern california freeways at cruising speed (twice on 101, once on 80). the first two failures occurred during daytime, the third at night. the weather in all cases was normal (no rain, snow, mud, ...) .when i visited the dealer after the first two occurrences (when the car is turned off and then back on the condition clears) the dealer found no diagnostic codes or other problems. then the problem occurred a third time. the dealer and honda corporate say they have no idea how to fix it because of the absence of diagnostic codes.

I purchased brand new my 2018 honda accord sport dec 28 2017 i have 1450 miles currently on the car and the brake pressure has been lost. when applying breaks at highway speed its not as noticeable but around town at 45mph when applying the breaks there is dead space then full brake kicks in which makes others think you are brake checking them. when going to the forums and to this website i saw other complaining about the brake booster failures. i went to the dealership. they advised yes the vehicle has a failed brake booster and is on a national back order. i am currently driving my new car with a failed booster waiting on honda to fix it. i hope this is safe that that my brand new car isn't being damaged waiting for this part.

Vehicle exhibited electronic brake booster failure after less than 100 miles of driving. the brake pedal has a hard "step" in it, and grabs very suddenly once the step is overcome. this makes smooth braking, especially when coming to a stop, nearly impossible. the suggested fix is to replace the electronic brake booster (01469-tva-a24). the new brake booster should return the brake pedal to normal, and restore a smooth linear brake. this is a known safety issue with the 2018 accord as the part (01469-tva-a24) is on national backorder. this should be a recall and my vehicle will spend over 2 weeks in the shop!!!

Brakes are very touchy and when braking pedal sometimes goes all the way to the floor. car does not stop smoothly and it seems to have different stages when breaking. it also jerks when when lightly touching break while at a stop light and slowly moving forward.

Brakes grabbing and almost uncontrollable. at low speeds, touch brakes lightly and they do little to stop the car. depress brakes harder and the pedal 'steps' in and the brakes grab abruptly. very difficult to brake smoothly / non-abruptly. as a result, at least one time abs kicked in prematurely when road surface covered with snow. but core problem (grabby brakes) are irrespective of road surface.

Loud clunk is consistently heard and felt every time the brake pedal is released after being depressed. the noise is more pronounced in cold weather and can be heard above the radio and road noise. the loud clunk sound occurs whether or not the car is moving, or the engine is running or the ignition/accessory power is turned on. the noise can be consistently reproduced and emanates from the firewall area under the dash where the brake pedal linkage attaches to the brake booster.

With 30 miles on my new 2018 honda accord 1.5l touring the brake alarm activated and the brake pedal became extremely hard to press. it was dangerous and i didn't know if i could stop the car. the dealer replaced the electric brake booster to fix the problem. there are many owners on the internet reporting the same problem.

Tl* the contact owns a 2018 honda accord. while driving approximately 10 mph, the contact depressed the brake pedal and the brake collision mitigation braking system warning indicator illuminated. the vehicle failed to accelerate. the contact coasted the vehicle into a parking lot, turned off the vehicle, restarted it, and was able to drive normally. however, the failure recurred twice. the vehicle was taken to chapman honda of tucson (4426 e 22nd st, tucson, az 85711), but the failure was unable to be diagnosed. the vehicle was not repaired. the manufacturer was notified of the failure and provided case number: 06589496. the approximate failure mileage was 1,000. *tt

Bought vehicle nov 22,2017. the following week when commuting home from work a light came on while using driver assist showing collision mitigation system problem. see your dealer. we took it to the dealer and reported the problem. the shop foreman said to take a photo if this happens again. the following week it happened again in the commute home while using driver assist showing the same message. i took the car back to the dealer the 2nd time and they kept it a few days so the foreman could replicate the issue. he couldn't replicate it and told us to take it back and take a photo and record if it happens again. he also thought our commuter transponder might be interfering with the honda computer technology. the 3rd time on the commute home was a scary situation when not only the light came back on, the brakes engaged at approx. 55 mph and we thought someone rear ended us in the fast lane on the freeway. thankful no one hit us or us hitting them. took the car back to the dealer over 2 weeks ago and and they are trying to replicate it once again. now the car is not safe to drive due to the fact the brakes angaged on the freeway at 55 mph. we refuse to drive it. the dealer called us to drive it because they installed a recording device when it happens again. this didn't make sense to us to subject anyone to a possible accident. we understand they are trying to replicate it but someone could be hurt or killed. we are in limbo and are very disappointed.

When i crank car and pull off it jumps real hard and say collision mitigation system failure see dealer. i shouldn't have to keep turning brand new car off for it to do right. please recall all accords very bad honda this one is horrible. vehicle was on a regular street good condition miami fl. the side mirrors shake all the time. the music always take time to load. defect in whole car please please recall before injury.

Other 2018 Honda Accord Problem Categories