2020 Acura TLX Engine Problems

PE 25008 The engine knock started on 12/22/25. Motorcars Acura recommended get a case number & have the 2020 TLX towed in for a diagnostic. Online case # XXX Towed to Motorcars on 12/23/25. Talked to Michelle with customer relations & she was going to call Motorcars for info. Motorcars, without my permission, pulled the oil pan & inspected the bearings. #6 rod bearing failed. On 1/15/26, Michelle with customer relations told me that they will not offer reimbursement to repair. I told Motorcars to do the repair on 1/15/26. Picked up the car on 1/21/26 Info & pictures attached. I told Michelle I hope you reconsider reimbursing me for the repairs. As I told Michelle, I am very loyal to Acura as I own (4) Acura’s. Now two of them have engine issue. The 2020 TLX rod bearing issue that was not included in the recall & my 2012 MDX with the 3.7 oil consumption issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Recall performed on 2020 Acura TLX 3.5 for rod bearing recall. Crankshaft and bearings were replaced. 24000 miles later, the engine spun a bearing again with all the new internals. All maintenance records were supplied when the car was brought in. Acura is wanting me to pay 40% of the cost for a short block.

The contact owns a 2020 Acura TLX. The contact stated that while stopped at a red light and attempting to make a right turn, the vehicle lost power. No warning light was illuminated. A dealer was contacted. The vehicle was towed to the dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was repaired, but the engine was not replaced. The contact related the failure to NHTSA Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING); however, the VIN was not included in the recall. The manufacturer was notified of the failure and offered to help with the cost of the repair. The failure mileage was 98,000.

The contact owns a 2020 Acura TLX. The contact stated that while his wife was driving at an undisclosed speed, the "Pull Over Immediately" message was displayed. The contact's wife pulled over, and the "Hill Start Assist Problem", "Collision Mitigation System Problem", "Road Departure Mitigation Problem", and "Blind Spot Info System Problem" messages were displayed. The vehicle was towed to the dealer, who determined that there was oil leaking from the crankshaft seal into an unknown sensor. The dealer repaired the recall under NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the failure persisted. The vehicle was idling rough and failed to accelerate while driving. Several unknown messages were displayed. The vehicle was towed back to the dealer, who test-drove the vehicle for 30 miles and performed an unknown repair. The manufacturer was made aware of the failure. The failure mileage was 70,990.

The recall impacting my fuel injection has not been fixed since 2023 i have been waiting. I was told parts are available now and would be called by someone but that has been more than a month ago.

The contact owns a 2020 Acura TLX. While the contact’s wife was driving at an undisclosed speed, the contact stated that several unknown warning lights illuminated. In addition, the vehicle shut off in the middle lane of a major highway. The contact's wife received assistance from a nearby truck driver. The contact stated that because of the assistance from the truck driver, the contact's wife was able to avoid additional dangers. The vehicle started and the vehicle was taken to the dealer; however, the cause of the failure had not been determined. The vehicle was not repaired. The contact stated that previously the failure had occurred, and the vehicle was taken to the dealer several times. The contact stated that several unknown repairs were performed, and unknown recall repairs were completed. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 45,000. The VIN was unavailable.

The contact owns a 2020 Acura TLX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The contact stated while at a complete stop at the traffic light, the vehicle stalled and was able to restart after several attempts. The contact was able to continue driving. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000. Parts distribution disconnect.

The contact owns a 2020 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling) however, the parts to do the recall repairs were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount time for the recall repair. The dealer was contacted and confirmed that the parts were not yet available. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2020 Acura TLX. The contact stated that while driving at various speeds, the vehicle stalled. Upon depressing the accelerator pedal from a stop, the vehicle failed to move. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 22,000. Parts distribution disconnect.

My engine has stopped and stalled in the middle of traffic on multiple occasions. The issue is related to the fuel pump recall. Acura states that the parts for the recalls are available, yet when you contact an Acura dealership, none of them have the parts! I DONT WANT TO DIE IN A CAR ACCIDENT BECAUSE ACURA IS STEALING OUR MONEY WHILE WE HAVE TO DRIVE FAULTY VEHICLES.

The contact owns a 2020 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The contact stated that several unknown warning lights were illuminated. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 41,500. Parts distribution disconnect.

The contact owns a 2020 Acura TLX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that an appointment was scheduled with the local dealer for the recall repairs; however, the contact was informed by the dealer while in the repair bay, that parts were still unavailable. The recall repairs were not performed. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

I purchased a new Acura TLX in 2020. The following year it took it into get state inspected in Massachusetts. My care failed for emission 3 times. I brought it back to the dealer (Herb Connolly) in Framingham Massachusetts. They kept it for 3 weeks, worked on it and told me it was all set. The following year I brought it in for a state inspection. The same thing happened. They told me that they had seen a few of these cases. They found a way to get them to pass. They have to drive it at different speeds for a few hundred miles. I asked that they fix in properly and they noted that they did not have a fix. This was all after I picked it up. I told them I was concerned as I worried this could keep happening. They encouraged me to call Honda Motor Corp. I spoke to them several times and they denied the problem. I am not in my third year. Car is still under warranty and it again failed inspection. Below is an email from the service manager on how to get it to pass. From: Michael Brooks <mbrooks@metrowestacura.com> Sent: Wednesday, July 26, 2023 4:05:38 PM To: [XXX] Subject: Passing Inspection Hi [XXX], As discussed we have not received any updated procedures or available software updates to get these cars to store the memory for the readiness flags. This is an issue what we have had to drive the car in very specific patterns to get it to pass. The main thing we do is DO NOT SHUT THE CAR OFF AFTER DRIVING IT JUST PULL IT INTO THE INSPECTION BAY AND LEAVE IT RUNNING DURING THE INSPECTION. There are a few flags that are notoriously tricky to get to flip. Usually we use our $20 “obd” tool that we got off amazon which monitors the flags in real time so we know when it is ready for inspection. Below are the driving patterns we follow to get the problem flags to turn over: O2 sensor This is one of the trickiest ones, we seem to have the most luck getting this one from continued driving so there is not a spec INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Software update completed June 2022 When coming to a stop light, my car shutdown. Went into neutral and took about five seconds to restart. It happened the following day and I was rear ended. No injuries occurred.

The contact owns a 2020 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that previously the vehicle had an electrical failure. The vehicle was taken to the dealer where it was diagnosed with an electrical failure and the electrical system was replaced. However, the electrical system failure had reoccurred. The vehicle was taken back to the dealer. The vehicle was not repaired. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power and the engine oil warning light illuminated stating 8,000 miles overdue. The vehicle was towed to the dealer where it was diagnosed with a failed engine due to old engine oil. The dealer disassembled the engine, and it was determined that a fractured engine rod caused the engine failure. The vehicle was towed to an independent mechanic to be repaired. The vehicle was repaired. The manufacturer was made aware of the failure and advised the contact that the repair would not be covered under the recall repair. The failure mileage was approximately 62,000.

After coming to a stop at a red light, the vehicle engine turned off as designed with auto start stop. When the light turned green, the vehicle temporarily restarted when I released the brake pedal, but immediately stalled and would not restart. This is a major safety concern as I was on a four lane road with traffic all around and I was unable to move. I had place the vehicle into park, turn off the ignition fully, and attempt to restart the car. It eventually restarted, but it took nearly 90 seconds. This is a danger to myself, and to the traffic around me as I was fully stopped on a road with 40 MPH limits and a lot of traffic.

Car loses power on inclines. Stepping on gas and car decreases speed.

I was driving around 30miles/hr and the engines shut off unexpectedly. I was stuck in the middle of a highway and the engine didn’t turn back on. The dashboard showed total failure. The car was one year old with 11k miles. I just had it serviced by the dealer.