2018 Acura RDX engine problems

Filed Aug 18, 2026 · Driver assistance, Engine · CA

The light comes on due to an emission system warning, shaking, and a lack of power; the engine is severely misfiring. This is the second time I have complained about this to the federal safety agency

Filed Sep 25, 2025 · Engine · FL

The torque converter is defective in my 2018 Acura RDX. I have received flashing warning lights on my dashboard in Red " Check Transmission." This warning light is due to Acura's defective torque converter. The torque converter affects the shifting of power during driving and cause hesitance or shuddering when attempting to accelerate.which causes my vehicle to sometimes to have a decrease in power . This affects my safety while driving my 2018 Acura RDX. Acura is aware of this defect and safety risk. Acura Client Relations informed me that Acura was mandated by the government to provide a Warranty Extension for the 2017-2018 Torque Converter. I received one of these notices and took my car for the repair. I left my car with the dealership for 6 days. The dealership decided that they will not repair my car because they have determined my car has a "branded title." I purchased my vehicle used from an Auto Body Shop. My vehicle was declared to be salvaged. My engine/transmission/torque converter is the original on my Acura RDX. and was never damaged or repaired. My RDX torque defect should be a safety recall because it affects my safety.

Filed Apr 27, 2025 · Driver assistance, Engine · WI

[XXX] on [XXX], traveling 70mph on busy highway, blind spot monitoring failed, gear display failed, and check transmission message flashed across display. Had to guide car safety off road and into parking lot. This was first time ever happened. Did not know what was going on or what was happening; safety features like blind spot monitoring (especially after becoming accustomed to) failing all of sudden could have caused a major accident by inadvertently cutting someone off, decrease in speed, etc. Turned vehicle off and all lights disappeared. Had car looked at by Honda Dealership next morning; notified it was a P0741 code and failed torque converter. These systems apparently always go down with this code. Told it was associated with known issue of SB23-029 after they consulted with a local Acura dealership. They were told Acura sees this all the time and a torque converter would repair issues I had. Stuck with almost $5k repair bill for a global issue because out of mileage extended warranty. Spoke with Honda representative Naomi (claim#[XXX]) advised of situation, was asked to provide a bunch of personal information not containing to claim over nearly two weeks, and then told I was denied assistance because system wouldn't take, I was not original owner, and out of mileage. This should not be a SB; THIS NEEDS TO BE A RECALL! I'm seeking legal representation and looking at options to recover losses from Honda negligence. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 5, 2024 · Engine · OR

I am unable to find a dealership that will perform the repair, please help. They all say they are short or parts and are only fixing vehicles experiencing issues. I lose power when accelerating all the time but this apparently is not enough.

Filed Oct 9, 2024 · Engine, Fuel system · VA

My 2018 RDX has started to jerk when I stop and then restart. I have noticed some hesitation and a bit of jerky driving but today it was very noticeable. I could barely go above 40 miles an hour after I started driving after a stop light and the car was very jerky. It seems to be either a fuel pump or transmission issue. I am going to check with the RDX dealership where I bought the car in 2018 but I wanted to report the issue. I also looked up the VIN on my car for a recall and the system said my car had not been recalled. Not sure why my 2018 RDX is different from other 2018 RDX models that were recalled.

Filed Jul 2, 2024 · Engine, Fuel system · 140,000 miles · NH

The contact owns a 2018 Acura RDX. The contact stated while driving 80 MPH, the vehicle lost motive power and decelerated to 0 MPH. The contact was able to pull over safely. The vehicle was restarted and worked as designed. The check engine and emissions warning lights were illuminated. The contact received notification of the federal safety agency Campaign Number: 23V858000 (Fuel System, Gasoline) 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 not made aware of the issue. The failure mileage was approximately 140,000. Parts distribution disconnect.

Filed Jun 26, 2023 · Electrical, Engine · IL

Vehicle began hesitating when starting, but not all of the time. One day after refueling it would not start. Lights on the dashboard flashed and flickered and the keyless start button made a clicking sound, but the vehicle would not start. Vehicle was towed to the nearest mechanic. The next morning the mechanic started the vehicle and found nothing wrong. Mechanic kept the vehicle for a couple days and the problem reoccurred. Vehicle will not start. Computer diagnostics shows the 2018 Acura RDX Control Unit part number 38320-TX4-A31 is faulty. This part is backordered and likely will not be available in the near future. The intermittent starting failure poses a safety risk and could leave a driver stranded.

Filed Jul 21, 2022 · Engine, Transmission · OH

Hard, jerking shifting at approximately 20 mph. Potential problem moving in close traffic such as from traffic light or entering traffic. No diagnostic warning/error lights. I’ve taken my car to Crown Acura 14080 Brookpark Rd, Cleveland, OH on July 11, 2022 for diagnosing and servicing the problem. It’s an intermittent problem so they couldn’t replicate so they couldn’t diagnose the problem. They flushed and changed the transmission fluid, bc and did a complete servicing. The service report does not show the transmission fluid filter was cleaned or replaced. I’ve found the problem mentioned a on the internet a number of times., but the mechanics were not aware of any transmission problems. I find it hard to believe Acura isn’t aware of the problem and how to fix it. The problem is intermittent and has been happening for over a year. The problem still hasn’t been diagnosed. I’m concerned my transmission will be damaged if the problem isn’t fixed. Most recent shifting problem was 4 times in about 30 min starting at ~9:30pm on July 21, 2022

Filed Jul 21, 2021 · Engine · 34,700 miles · NC

The contact owns a 2018 Acura RDX. The contact stated that the vehicle intermittently hesitated while depressing the accelerator pedal. The failure also recurred while switching lanes or passing other vehicles. The contact also stated that the vehicle would lunge forward soon after hesitation without warning. The contact had taken the vehicle to a dealer where they were unable to duplicate the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 34,700.

Filed Jan 21, 2019 · Body, Engine · 8,500 miles · FL

Have had this car a year. Withing 6 months shifter would not shift back to park and couldnt turn car off. Dealer found acorns jammed in transmission somewhere felt to be due to squirrels or other rodents. This month emissons light came on. Found fuel line leaking due to animals chewing on it. Not covered under warranty. $1100 to fix. I feel the engine housing is not well sealed allowing this to happen have never had this issue with any other cars which have been parked in same place for long periods of time. Feel it should be fixed under warranty to prevent it from happening again. Vehicle sits outside driven twice a week.