2018 Acura MDX Fuel System Problems

Mileage when the problem started

• Under 25k
  110%
• 25k–50k
  220%
• 50k–75k
  330%
• 75k–100k
  110%
• 100k–150k
  330%
• 150k+
  00%

Owner reports

Selected complaints filed with NHTSA by 2018 Acura MDX owners, lightly cleaned up (personal details are redacted by NHTSA).

In San Diego on 11/15/2021, my daughter side swiped a parked vehicle in residential area driving about 30 miles. No airbags deployed. A minute later the car stopped and would not start and started to have smoke and flames come from under hood and through inside windshield and dash. My daughter was able to get out and take her 3 year old son out of his carseat and run for their lives as the car completely became engulfed in flames.Thank God they made it out alive. Police and Fire department showed up. Car was a total loss, everything was burnt. One day the Acura MDX fires will take someone's life. Called Hoehn Acura in Carlsbad Ca and sent service manager Skip about 12 pictures of the completely burnt vehicle. He never returned my calls after leaving several messages. Also left message with general manager and no return call. They don't care. …

The contact owns a 2018 Acura MDX. The contact stated that while driving 45 MPH, the vehicle lost motive power and stalled, with several unknown warning lights and the traction control warning light illuminated. The contact was unable to restart the vehicle, and the vehicle was towed to the dealer, who diagnosed a failure with the oil pressure switch. The oil pressure switch was replaced; however, the failure persisted. The contact stated that while driving approximately 70 - 75 MPH, the vehicle unintentionally decelerated to 40 - 45 MPH. The accelerator pedal was pumped until the vehicle accelerated with a crunching sound coming from the vehicle. The contact stated that the remote start failed to operate as designed occasionally. The vehicle was taken to a certified mechanic and was diagnosed with transmission failure; however, the vehicle was not repaired. …

The contact owns a 2018 Acura MDX. The contact stated while driving approximately 40 MPH, the vehicle made an abnormal rattling sound. The contact stated that the failure had been recurring intermittently. There was no warning light illuminated. The vehicle was taken to the dealer, where it was test-driven; however, the dealer informed the contact that they could not duplicate the failure. The contact later received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) which she related to the failure; however, the part to do the recall repair was not yet available. Additionally, the contact received notification of NHTSA 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 owns a 2018 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling). The contact stated that while driving at 30 MPH, the vehicle jerked and hesitated and failed to accelerate as intended while depressing the accelerator pedal. No warning lights were illuminated. The local dealer was not contacted, and the vehicle was not repaired. The contact stated that the failure persisted. The contact stated that on a separate occasion, while exiting a parking lot and driving 5 MPH, the vehicle unintendedly accelerated. The contact stated that several minutes later, the vehicle functioned as intended. No warning lights were illuminated. The local dealer was contacted. The vehicle was not repaired after the most recent failure. The contact stated that the failure persisted. …

The contact owns a 2018 Acura MDX. The contact stated while driving at various speeds, there was a loud vibrating noise coming from the vehicle. There was no warning light illuminated. The contact had received notification of NHTSA Campaign Number: 23V85800 (FUEL SYSTEM, GASOLINE); and the vehicle was taken to the dealer where the recall repair was performed; however, the failure persisted. The vehicle was taken to an independent mechanic where a diagnostic test was performed, and the contact was informed that the other fuel pump that was not included in the recall was probably the cause of the failure. The dealer and the manufacturer were notified of the failure but offered no assistance. The vehicle was not repaired. The failure mileage was approximately 100,500.

The contact owns a 2018 Acura MDX. 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 that occasionally while attempting to accelerate from a stop, the vehicle occasionally stalled while the accelerator pedal was depressed. No warning lights were illuminated. The local dealer was contacted. The vehicle was not repaired. 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 failure. The failure mileage was approximately 100,000. Parts distribution disconnect.

The contact owns a 2018 Acura MDX. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power but was able to restart. On another occasion, while the contact's husband was driving 10 MPH, the vehicle lost motive power in the middle of the highway. The vehicle was unable to restart, and the contact's husband had to push the vehicle to the side of the road. The vehicle was towed to a service center, where it was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 136,000.

The contact owns a 2018 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V858000(Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that the vehicle was experiencing intermittent engine hesitation was 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 repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,000. Parts distribution disconnect.

The contact owns a 2018 Acura MDX. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed, which caused the vehicle to lunge forward. Additionally, several unknown warning lights were illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a faulty fuel system. The manufacturer was made aware of the failure. The failure mileage was approximately 50,000.

This car has repeatedly had issues with delaying to take off when I touch the gas pedal. Once the pedal is depressed there is a long delay before the car actually moves. Two days ago as I was driving at around 35mph all warning lights came on and the car started jerking as it was trying to slow down or stall. I was able to get back to my home luckily I was only up the street and was able to drive under 30mph and had to pull off the road several times because it kept jerking almost as if someone was repeatedly slamming on the brakes. I had a mechanic hook a reader up and was able to determine it was the high pressure fuel pump. Acura claims my car has no open recalls but I believe although it may not be currently it obviously should be part of the recall involving the same exact issue. …

Related recalls

Fuel System complaints in other MDX years