2018 Acura TLX

95 complaints on file, page 1 of 5.

1. Filed Sep 22, 2026Failure Sep 14, 2026Nashville, TNElectrical system, Adaptive cruise control, Automatic emergency braking

   I own a 2018 Acura TLX with approximately 41,384 miles. While driving, multiple safety-system warnings suddenly appeared simultaneously, including: Lane Keeping Assist Problem Adaptive Cruise Control Problem Auto High-Beam Problem Collision Mitigation System Problem Road Departure Mitigation System Problem Brake System warning I safely stopped the vehicle, shut it off, and restarted it. The warnings initially disappeared but later returned, including when I started the vehicle to take it to the Acura dealership. An authorized Acura dealership inspected the vehicle and retrieved multiple diagnostic trouble codes, including U3000-49, indicating an internal electronic failure associated with the multipurpose camera/driver-assistance system. The dealership cleared the codes, retested the vehicle, and confirmed that the fault returned. The technician also tested the battery, alternator, starter, and camera ground. The brake system was inspected, and no separate braking problem was identified. The dealership diagnosed a failed monocular camera requiring replacement. Safety concern: Multiple driver-assistance systems became unavailable unexpectedly while I was driving, including collision mitigation, lane-keeping assistance, road-departure mitigation, and adaptive cruise control. The simultaneous failure of these systems creates a safety concern because the vehicle's collision-prevention and driver-assistance features may be unavailable without advance warning. The dealership quoted approximately $2,400 for the camera replacement. The vehicle has only 41,384 miles. I have photographs and video documenting the dashboard warnings, as well as the dealership's diagnostic trouble code report and repair estimate. These records are available upon request. I am submitting this complaint to document the unexpected failure of multiple driver-assistance safety systems and request that NHTSA evaluate whether this represents a potential safety-related defect.

   NHTSA complaint 11766197
2. Filed Jun 10, 2026Failure May 30, 2026Berlin, WIWarnings, Electrical system

   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)

   NHTSA complaint 11743370
3. Filed Jun 6, 2026Failure May 24, 2026Abbeville, SCEngine, Fuel/propulsion system

   Driving car and suddenly all the lights on the dash light up and car goes into “limp” mode. Upon pulling over turning car off and turning back on lights are all still lit up. Plug car into obd2 scanner and car is showing code p0087 low fuel rail pressure. This is extremely dangerous as the car will randomly do this and will go into limp mode which can easily cause me to get into an accident. No active recalls on this but I’m seeing this is a common issue with these Acura tlx models. Why hasn’t this issue been addressed yet Acura?! For reference I drive a 2018 Acura tlx base model 2.4 cylinder

   NHTSA complaint 11742504
4. Filed May 27, 2026Failure Apr 29, 2026Long Beach, CAEngine

   I bought my 2018 Acura TLX a-spec V6 in Nov. 2021, certified pre-owned from an Acura dealer. It had warranty through 100k miles. At just under 70k miles, around mid-2023 I believe, the engine seized and would not start. Warranty covered engine replacement. This was just around the time of the 3.6L V6 engine recall. I waited on the recall because the engine was brand new at that point. A year or so later, deal did inspect the engine for recall, but determined it was not part of the recall. Come current to late April 2026, just before engine #2 hit 70k miles (total miles on car ~139,000), engine has seized again. Driving on freeway and car went into limp mode, thankfully close to home and made it safely. Had car towed next day to mechanic who sent a video of the knocking noise (can send video if requested; unable to upload here) and refused to work on it. He later drove the car down the block and that is when engine completely failed; no longer would turn on. Towed home, towed to dealer a week ½ later when they had opening. Dealer performed diagnostic and confirmed crankshaft seized. However, now, well past warranty coverage. I called Acura customer relations and opened a case; they will only cover "half" of the engine replacement, at a cost of $13,817 to me. My car is less than 10 years old, less than 150k miles overall and should NOT need engine #3. Will same issue happen after another 70k miles? Acura refuses to acknowledge and take care of it 100%.

   NHTSA complaint 11740489
5. Filed Feb 11, 2026Failure Jun 30, 2023Rocklin, CAAutomatic emergency braking

   I was rolling up to a stop light at approximately 20 mph when the frontal crash mitigation feature suddenly slammed the brakes on fully to a complete stop. I searched the web and found that there are other owners of this model that have had similar occurrences. I could easily have been rear-ended if someone had been following. I was lucky that didn’t happen. Since that day, I have been afraid to drive the car until I have disabled the feature.So every time I start my car I have to disable this mode. There is no known fix. No technical service bulletins etc. regarding this problem. Honda Acura needs to find a solution to this. I should not have to disable a safety feature that is actually making my car unsafe!

   NHTSA complaint 11717423
6. Filed Jan 13, 2026Failure Nov 19, 2025Alameda, CAEngine, Unknown or other

   The vehicle experienced vibration symptoms and stalled on the road. The day before it stalled, there were rattling noises which prompted me to take the car to the dealership the next day. I had just received the letter about the recall so I knew it was likely related. The car was towed to the Acura dealership but the dealership denied recall coverage, stating the engine number did not match the recall list. During the discovery process, it was later discovered that the engine had been swapped by the dealership in 2018 — a fact that was not disclosed to me at the time of my purchase. The installed engine still falls within the recall defect interval of 2015-2020 but they are resistant to repair. Upon initial inspection of the vehicle, the dealership found metal shavings in the oil indicating internal engine damage. The manufacture requested my oil change records suggesting that this was my fault. I presented the oil change receipts but they still refused recall coverage and the dealership requested approximately $5,000 for diagnostics, if determined my fault. If it is determined that the defect damaged the engine, they will cover the 5k. After several weeks of inspection and going through the manufacture recall process, the dealership determined the recall issue applies my car. However, due to the engine number not on the “list” they are denying my recall coverage. They are seeking $25k for service repairs. After almost 2 months of back and forth, I have been misled and misinformed. I am struggling to get my car repaired under recall.

   NHTSA complaint 11710731
7. Filed Jan 12, 2026Failure Jan 12, 2026Winchester, TNSteering, Suspension

   While performing routine maintenance on my 2018 Acura TLX, I discovered a critical structural failure in the front right (passenger side) lower control arm. The factory weld connecting the stamped steel control arm to the compliance bushing housing has failed and separated. Visual inspection reveals a clear manufacturing defect: there is a significant crater and void in the weld bead, indicative of incomplete fusion or a "start/stop" error during the manufacturing process. This is a latent structural defect, not a stress fracture from mileage or impact. The weld has begun to separate from the housing, leaving a visible gap. Safety Risk: This failure compromises the suspension geometry and structural integrity of the vehicle. If the weld completes its separation while driving, it would result in the control arm detaching from the subframe, leading to immediate loss of steering control, wheel collapse, and a high probability of a collision. Status: No warning lights were illuminated prior to discovery. The vehicle has not been involved in any collisions that would affect this component. The defective part is currently on the vehicle but is available for inspection by NHTSA or manufacturer representatives upon request.

   NHTSA complaint 11710418
8. Filed Jan 9, 2026Failure Oct 20, 2021Coweta, OKEngine

   The engine has been making rattling noises when you start the vehicle from a long rest, mostly over night, since it has about 24k miles on it, when I purchased it used. I noticed it some time after I purchased it. Took it to Honda dealer in Hickory, NC, but they couldn't hear it. Later also took it to Acura dealer in Charlotte, NC. They couldn't hear it either. I recorded the sound and played it back to them.

   NHTSA complaint 11709862
9. Filed Nov 18, 2025Failure Jan 31, 2021Conshohocken, PAEngine and engine cooling

   The contact owns a 2018 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The contact stated that while driving on several occasions at various speeds and while the vehicle was idling, there was a valve tap coming from the engine compartment, and the vehicle failed to restart. The vehicle was towed to a dealer, where it was diagnosed, and determined that a rod had pushed through the wall of the engine, and the engine needed to be replaced. The vehicle was repaired, but the failure reoccurred three years later. The manufacturer was notified of the failure. The failure mileage was unknown.

   NHTSA complaint 11700109
10. Filed Oct 24, 2025Failure Oct 23, 2025176,410 milesBerwyn, ILSpeedometer/odometer

    Odometer Fraud. The contact purchased a 2018 Acura TLX. The contact stated that it was discovered that there was a mileage discrepancy. The vehicle was purchased on September 10th, 2025, as a dealer sale. At the time of purchase, the vehicle mileage was 76,410. At the time of registration, when the title was received, it was discovered that the mileage was 176,410. The title read, "Not Actual Mileage, Mileage Tampering," which indicated odometer fraud had been detected. After ordering the Carfax Report, the report indicated that the mileage 176,000 miles at the time of purchase. The contact had not reported the odometer fraud to any other parties.

    NHTSA complaint 11695401
11. Filed Oct 5, 2025Failure Sep 28, 2025Arvin, CAAdaptive cruise control, Warning, Assist

    I got 5 lights on my dash stating that I have an auto high beam problem, road departure mitigation system problem, collision mitigation system problem, lane keeping assist problem, and adaptive cruise control problem. I got these lights on my dash at the exact same time and this happened 1 week after my car alarm started going off randomly. I will now have to change my windshield camera sensor. Seems like this is an issue with many Acura owners.

    NHTSA complaint 11691417
12. Filed Sep 21, 2025Failure Aug 31, 2025Saint Charles, MOElectrical system, Engine, Power train

    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.

    NHTSA complaint 11688717
13. Filed Sep 7, 2025Failure Aug 26, 2025Santa Ana, CAEngine, Vehicle speed control

    While I was driving in the fwy I tried changed lanes and needed to speed so that incoming car wouldn’t hit me but my car was stalling. It has happened 3 times!!! I took it to the dealership and they said it’s the camera and that they don’t have the part on stock. I asked for a rental car meanwhile we wait for the part and they said they can’t do that. I stated to them that the car is dangerous not only for me but for the public if I keep driving it like that. They said there’s nothing they can do!

    NHTSA complaint 11685526
14. Filed Sep 4, 2025Failure Sep 14, 2024Philadelphia, PAEngine

    I am from Philadelphia PA and I was driving my car on a highway in rural WV and the engine stalled while driving. I was lucky enough that no other cars were around and I was able to veer the car off the road into a parking lot. The car would not re-start. I had to tow my vehicle to a local mechanic shop who could not help. I was stranded out of state on a holiday weekend with no acura in a 2 hour radius. I ended up renting a u-haul and towing the car 8 hours from WV back to a local Acura in Philadelphia. Acura replaced the engine due to the known re-call but refused to cover the cost of the tow or U-haul.

    NHTSA complaint 11685154
15. Filed Jul 28, 2025Failure Feb 28, 2025110,000 milesRancho Cordova, CAEngine and engine cooling

    The contact owns a 2018 Acura TLX. The contact stated the vehicle was included in NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling), for a possible failure with the connecting rod, and the vehicle was repaired. Approximately 2-3 years after the recall repair, while driving 65 MPH, the vehicle started losing motive power while accelerating. The contact coasted to the side of the road and became aware of oil leaking from the vehicle. There were several unknown warning lights illuminated. The vehicle was towed to the dealer, who diagnosed the vehicle with 4 blown pistons, causing the engine to fail. The contact stated that the previous recall stated that the engine would be replaced as needed. The dealer informed the contact that the engine was no longer covered because the vehicle exceeded the mileage and time limitations. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The failure mileage was approximately 110,000.

    NHTSA complaint 11676705
16. Filed Jul 24, 2025Failure Jul 24, 2025Stockton, CAElectrical system, Unknown or other

    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.

    NHTSA complaint 11676034
17. Filed Jul 16, 2025Failure Jul 1, 2025Lancaster, PAWarnings, Blind spot detection, Steering

    I am getting a U129D-00 code, my vehicle isn't passing 50mph. Says lane keep assist problem, vehicle stability problem, precision steering problem, i am experiencing all the characteristics of specific service bulletin 15-050. What are my options

    NHTSA complaint 11674122
18. Filed Jul 14, 2025Failure Jul 13, 2025150,000 milesSuwanee, GAFirerelatedFire

    The contact owned a 2018 Acura TLX. The contact stated that the vehicle caught on fire while parked in the driveway. The origin of the fire was unknown. The vehicle was unoccupied during the fire. The location of the fire was between and underneath the shifter and the cup holder. The fire was extinguished by itself. A fire department report was not filed. A police department report was not filed. The vehicle was destroyed. The approximate failure mileage was 150,000.

    NHTSA complaint 11673315
19. Filed May 4, 2025Failure May 4, 2025Westerville, OHElectrical system, Fuel/propulsion system, Service brakes

    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)

    NHTSA complaint 11658739
20. Filed Apr 25, 2025Failure Sep 25, 2023120,000 milesSacramento, CAPower train, Vehicle speed control

    The contact owns a 2018 Acura TLX. The contact stated while driving 35 MPH and at various speeds, several unknown warning lights illuminated on the instrument cluster. Additionally, the contact stated that while depressing the accelerator pedal, the vehicle was hesitated before responding as needed. The contact stated that the failure was a recurring failure. The contact had taken the vehicle to a local mechanic who was unable to diagnose the vehicle. The contact called a local dealer but had not taken the vehicle to be diagnosed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 120,000.

    NHTSA complaint 11656824