Electrical System Problems of Acura TLX - part 1

I’ve bought my 2018 Acura Tlx used from holiday Mazda in [xxx] in xxx now that my nightmare with the auto engine idle is over(the shop that replaced my starter in November 2025 some how got it so it doesn’t work anymore. But that’s not my issue. I’ve had this issues 5-8 times in the last 2 years. I will be driving and my top screen in in the dash(it usually displays navigation, carplay, etc) will turn off and flash a couple times. Then it take out my “radio” screen. It’s like it’s resetting because the screens remind me when it electronics reset snd start up. It goes for a total of 2-3 times. Thank the good lord my car keeps driving safely. Here is the second issue. I’ve had my parking, forward collision, and the one where it says” object approaching. ” off for 2 years now. When they are on they will start beeping and freaking out. I’ve cleaned in front of wheee those cameras are located. I’ve researched online. And can’t figure it out. Now that I have my newly licensed son ([xxx] old) driving the car I want to get every safety issue working. Acura can’t figure it out and so I don’t know where else to turn. A fiend recommended I do this. I do have video of these things happening. I can included them if asked to. Thank you. Ps. I wasn’t able to upload video, I can email them if you send me an email address I’ll get it to you ASAP. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2018 Acura TLX 🔎.

The alarm on my car would intermittently and randomly go off at any time while car was parked and locked. After much research I deduced that it is the Smart power control unit located behind the glove box. The epoxy clear covering on the circuit board is not fully covering the entire board allowing for dendritic growth and random surges. These surges can cause the alarm to go on and off, the head lights to turn on and off, and instrument panels to go haywire. I haven't experienced this issue while driving but it could certainly happen, which would obviously be very dangerous. I did not take it in to a mechanic or dealer to reproduce the problem, however I have confirmed with others with various Honda models having the same issue.

See all problems of the 2016 Acura TLX 🔎.

The emergency brake system continues to come on and read all the type of stuff on the screen, as well as the lkas keeps coming on the screen showing problems and when it does, the transmission or engines stalls a little and slows up and speed down on its on.

See all problems of the 2015 Acura TLX 🔎.

Description of safety defect: while starting car up, the digital instrument cluster (speedometer and all primary driver instrumentation) goes completely black with no warning. The infotainment system continues to operate normally. After driving a short distance (sometimes only a few miles), the vehicle then experiences a complete loss of power steering, making the car extremely difficult or impossible to control. This creates an immediate risk of a crash, especially at speed or during turning. In multiple instances, after this failure occurs, the vehicle also becomes difficult to shut off, remaining in accessory or powered states despite attempts to turn the vehicle off. This defect involves simultaneous failure •driver instrumentation display •electric power steering assistance •normal ignition shutdown behavior the loss of steering assist results in a sudden and unexpected loss of vehicle control. This appears to be an electronic or control-module failure affecting multiple safety-critical systems. Safety impact: this defect poses a serious risk of crash, injury, or death due to sudden loss of steering assistance and lack of speed/vehicle status information while driving. Frequency: has occurred twice - each time requiring roadside assistance to get the car to the dealer warning lights or messages: none - just complete loss of instrumentation cluster dealer response (if applicable): dealer initially claimed it had fixed, but it occurred again within 24 hours of retrieving from dealer. Dealer has now had car go over a week claiming that it needs to generate the fault state more than once before it will make any warranty repairs.

See all problems of the 2025 Acura TLX 🔎.

Vehicle has been recalled for a speed sensor issue that still persists. Recall repair was not properly executed. Vehicle engine still randomly shuts off while in idle at stoplights and during travel. Engine won’t start at this point.

See all problems of the 2017 Acura TLX 🔎.

Unknown: ebs comes on as well as the break system problem lights and many more. Vehicle loses power and goes into limp mode. As of now it wont shift from parking.

49,622 mark on my 2020 Acura Tlx awd… auto stop was enabled, car was at stoplight, engine attempted to re-engage but did not and car went into “neutral”… and the lights stayed on. I immediately turned on blinkers to avoid crash and and attempted to re start car, I shifted into park, shut down car and re-started it successfully. I am seeking repair or disablement of the auto stop system, this is a safety hazard to myself and my family as well as others who had to go around while the issue was being troubleshooted. This appears to be related to investigation:ea25004.

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Warning lights for electric parking brake problem and emissions system problem simultaneously occurring with no definitive solution. Codes can be cleared by disconnecting battery and reconnecting but warning lights eventually come back on sometimes in a matter or days, weeks or month. There are no other issues that coincide with these warning lights coming on.

Infotainment system shuts down while driving and ultimately causes the power to drain from the vehicle leaving the vehicle inoperative. This is the second time this has happened. Acura has already repaired once with less than 1000 miles on the car. Now it’s happening again.

See all problems of the 2024 Acura TLX 🔎.

Date of incident : August 31,2025 around 9pm on August 31, I was fixing to accelerate at a green light. I pressed the gas pedal, my car went up to 40 mph and then the engine failed. This is due to a recall on the bearing rods for 2015-2020 Acura Tlx. The incident occurred a month after financing the car. I don't have a warranty, so I opened up a case with the manufacturer to get help with the repair cost (which is 25,500 for a new engine block and 2 new cylinder heads). Unfortunately, Acura denied assistance. The car only has 68880 miles on it. The rod snapped and put a hole through my engine block. Shame on the manufacturer for denying assistance. I'm now stuck making payments on a car I cannot drive. Yes I have insurance, but it was not involved in an accident so I'm helpless there.

All of sudden I got electronic parking brake/emissions system problem today 08/26/2025 and hence reporting this and quick internet research shows so many people having same issue.

See all problems of the 2019 Acura TLX 🔎.

High pressure fuel pump failure. Car not functional and every warning light started to light up. The car just was serviced for rod bearing (entire crank shaft needed replacement) and regular fuel pump recall replacement which took the dealership almost a month to complete. I spoke to Acura representative who indicated that when either of the fuel pump or high pressure fuel pump is replaced, the other pump could fail. I'm not sure why both of the fuel pumps (standard and high) are not both replaced as part of the recall if there is substantial damage as was my case. Also, please note that there is an active high pressure fuel pump recall on my car, just not my VIN.

The wipers come on by themselves and do not turn off. The engine may or may not start with the key fob nearby. All the dash warning lights come on with warnings about the brake system, the transmission, the steering, the adaptive cruise control all reporting a problem. The vehicle goes to limp mode and throttle response is severely reduced. There is some sort of water leak which is shorting out or causing the bcm or body control module to act erratically due to water from rain getting into the area because of improper weather sealant placed during manufacturing. There is a service bulletin that was put out in roughly April of 2024 that describes this issue affecting the 2021 Tlx models.

See all problems of the 2021 Acura TLX 🔎.

Electric parking brake problem , and emissions system problem. Apparently its a common issue many are affected.

We have three Acura vehicles at home and this is the newest one - 2025 Tlx a-spec. The vehicle is only a few months old and already suffered two infortainment screen failures. This is the primary screen on the dash that shows navigation and other information. The screen goes dark completely due to either an electronics/hardware issue or a software issue. This could be a safety issue if the driver is driving using the map app at a busy intersection, and the screen stops working. Once it is out of order, the only way to fix it is taking it back to dealer and do a battery level re-set. Not acceptable! please investigate and start a recall if needed. Thanks so much for your time.

While driving, my vehicle has randomly shut off mid-drive on multiple occasions without warning. This has happened both at low speeds and on city roads, creating a serious safety risk as the engine cuts out without any dashboard lights, alerts, or codes. I lose power steering and acceleration, which could easily cause an accident if it happens at higher speeds or in traffic. The issue is intermittent and unpredictable, making it difficult to reproduce. I have taken the vehicle to the dealership multiple times, but they have been unable to replicate the issue or find a cause through diagnostics. Honda has advised me to tow the vehicle the next time it happens, which is unreasonable given the uncertainty and safety risk of being stranded. At the time of each incident, there were no warning lights, error messages, or unusual noises. The vehicle has restarted after turning it off and on again, but the underlying cause remains unknown. I have opened a case with american Honda, but no resolution has been offered beyond repeating the same inspections that have already failed to diagnose the issue. To date, neither the manufacturer nor the dealership has confirmed the issue or replaced any parts. I am deeply concerned about the potential for this to happen in a more dangerous situation. I am reporting this to NHTSA in hopes that this issue is investigated and resolved before it leads to an accident or injury. Cause of issue: unknown. Vehicle available for inspection.

The keyless access unit broke around 100k miles. Car acted like it was having a seizure. If car was locked, alarm goes off nonstop (during these episodes, which are intermittent) and all dash lights and head lights blink on and off over and over in quick succession. If car was not locked, only the lights had a seizure, there would be no audible alarm. Seemed to happen more near towers (cell towers, fire station broadcast tower, absolutely could not leave the car alone in nyc and had to go home). So so so embarrassing. So many people with this issue.

The cars emission systems and parking brake lights come on, and the dealer can not diagnose this issue properly. I have taken it in 4 times, and it continues to happen. I fear the parking brake coming on while driving.

The contact owns a 2020 Acura Tlx. The contact received notification of NHTSA campaign number: 23v751000 (engine and engine cooling) and an unknown recall for the tires, and another for the trim around the doors. The contact stated that the recall repairs were completed. The contact’s son picked up the vehicle from the dealer and noticed that the front windshield was cracked. Additionally, while driving 65 mph, the vehicle vibrated abnormally, and the driver was unable to control the vehicle. The contact stated that the front passenger’s side tire detached from the vehicle. The driver was able to regain control of the vehicle and pulled over to the side of the road. Several messages were displayed on the instrument panel including messages that the cruise control was inoperable, assist line collison system inoperable, road mitigation system unavailable, collison mitigation system failure were displayed. When the tow truck arrived at the scene, the tow truck driver noticed that bolts connected to the spindle had detached. The vehicle was towed to a tire specialist and the tires were replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

Car’s advertised anti-theft features are faulty. They have two tracking features with also both failed. When I contacted Acura they said this was a known issue and highly prevalent in NY, DC, FL, MD. Cars computer is cloneable and it takes less than 3 minutes to enter and steal without keys or breaking windows or enabling alarms.

See all problems of the 2023 Acura TLX 🔎.

I had the same issue as [xxx] . I do see there are many others effected by this and some have overpaid due to inaccurate diagnostics by dealerships. We would really appreciate if NHTSA looks into this issue and help us. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My husband and I have a 2022 Acura Tlx (purchased new) that was issued a safety recall. We brought the car into the dealership in April to fix the problem. Two weeks later, the car completely malfunctioned- every warning light went off at the same time, and the car completely lost control. Steering, brakes, power/gas, everything went out. During this second visit, the dealership replaced the pcm. Last night, the exact same issue happened. My husband was thankfully near home, but if he was on a highway, he could've easily been killed. Again, everything in the car went out- steering, brakes, power- and he had zero control of the car. The car was towed a couple hours ago to the dealership (third time since initial visit in April), and the service manager said, "this has never happened before. . . " and had no answers. This is an extremely high risk situation, and we do not feel safe getting into this car when the dealership/manufacturer is clearly not able to fix their own safety recall.

See all problems of the 2022 Acura TLX 🔎.

Electrical brake signal came on and emission light.

The backup camera on the rear simply went blurry one day, it’s now impossible to see out the camera. It worked one day then failed the next, this is a safety hazard now. I think these cameras should be required to always function. This is the camera on the trunk. It’s unsafe for me to see when back up.

Acura Tlx stop start system it will turn off on red light or stop! engine fails to restart on its own! jump start required!!!! is not safe for millions of families!.

I will be driving down the interstate and the car will go into neutral and throw a transmission code. It appears to happened when the car reaches 60mph.

I was driving on the freeway going at the speed of traffic about 65-70mph then suddenly I heard my car engine slowing down and multiple lights popped up on my dashboard. I looked at my speedometer and it indeed was decreasing in speed. I tried to accelerate little by little and it did not. My check brake system, check brake hold system, check power steering system, check vsa system, check hillstart assist system, check emission system lights popped up on my dashboard. My car felt like I was popping the clutch, jerking a lot. I was able to move over to the right shoulder and park. I turned the car off and I was able to turn it back on unfortunately but the lights were still popping up and my car kept jerking and not accelerating. This happened while driving on the highway this is extremely dangerous! there has been others with the same issue.

All lights turned on randomly during drive. Replaced battery 2x seeing it was a common issue in my year Acura and also newer models. Still have the issue occuring. All lights from transmission error to lane keep asist ect.

The car is constantly throwing codes for faulty emissions system problem and parking brake problem but the car runs fine. The dealership will not do anything unless I pay them a fee to diagnose it and then they suggest replacing the catalytic converter even though it’s very likely a faulty fuel hose or faulty sensor. This needs to be recalled and fixed immediately.

Electronic parking brake and check emissions system lights going on simultaneously. Car stalled on freeway and check transmission light also went on simultaneously. Very dangerous. Multiple reports submitted for similar issue by many people. Please look into this. Acura needs a recall on these Tlx models.

The vehicle's dash states the following are malfunctioning: road departure mitigation system, adaptive cruise control, auto high beam, collision mitigation system, and lane keeping assist. The vehicle is available for inspection upon request. A few days prior to this message appearing on the dash, the car flashed and beeped that I needed to brake when there wasn't anything in front of me while driving. The car automatically braked without me doing anything. There weren't any vehicles behind me in that specific moment. With how sudden the car braked, this could have caused a collision. This vehicle has been repaired by the dealership where it was purchased, for this exact issue. The first sign of sensors malfunctioning was in January 2022 (I purchased the vehicle in June 2021). I have taken the vehicle to the dealership for repairs 3 times in relation to sensor malfunction and for replacement of rear actuators, which is stated in the service repair summaries. Since the last repair in 2023, the same problem has occurred once again. This latest incident has included the automatic braking without any objects in front of the vehicle. I have not driven the vehicle in two days due to this safety concern.

Was driving in the car for a while and the dashboard just turned off. Could not see speed or any other safety controls.

Acura Tlx suddenly starts flickering, its a common Honda manufacturing defect ive attached a video for reference [xxx] it’s dangerous because it can leave someone stranded unsafe information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

In September 2023 went in for an oil change. Next day all my cmbs, acc, lkas and road departure mitigation system all light up on my dashboard as well brake system light. I called and took the car in they said that it had something to do with the camera sensor. I left a complaint and the manager called after I explained to him he said he would call me back. 1. 5 years later he never called back. In October 2024 my car alarm started going off for no reason. I took it in and $1000 to fix. Seems like a lot of electric issues with this car.

Car experiences intermittent electrical system failure. Upon failure, drivers will experiance random and rapid clicking, clanking, and electrical systems discharging like lights, screens, and alarm. After restarting the car, users will find, all warning lights displayed with a few blinking: transmission, parking brake, traction control, a few more. Headlights will randomly turn on, as well as the alarm, intermittently. All adas offline. Experienced sudden system failure causing all adas to fail while stationary/parked or moving/(actively driving on highway). Does actively affect driving ability more specifically: disrupts steering ability, causes random malfunctions with electrical components, cannot exceed 40 mph, car will not shift above 3rd gear, engine does seem much louder. After a thorough investigation/diagnosis with the dealership I concluded the main fault is due to the "Smart power control unit" located behind the glovebox compartment of the vehicle. More specifically, one of the chips on the circuit board is not fully coated with sealant from the factory, leading to a potential for some kind of mold, dust, or organic growth to form and short one of the ground pins on the end of the chip. Driver states: this is a control unit failure, I believe a small short on a single ground pin with the positively charged chip housing was causing a short within the control unit circuit board where the chip was not fully covered with non-conductive coating/sealant. This caused a handful of issues, like electrical systems prematurely wearing due to rapid discharge of electronics. Impairs drivers ability and ability in turning, braking, and accelerating. Also car will roll backwards if driver is not careful. Biggest concerns: fire, partial loss of control while driving, and premature wear on electrical components. A extra note: disconnecting battery does temporarily fix issue but rarely, most time it will start discharging electrical systems immediately or in the day.