There are 6 owner-reported speed control & cruise complaints for the 2019 Acura MDXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owned a 2019 Acura MDX. The contact stated that while driving approximately 40 MPH, the vehicle experienced a sudden jolt. The contact immediately depressed the brake pedal and the vehicle erroneously accelerated to a high rate of speed. The contact depressed the brake pedal, shifted to neutral, and to the park position but the vehicle continued to increase speed eventually crashing into several vehicles that were stopped at a red light. The vehicle then crashed into a moving vehicle where it came to a stop. The contact indicated that during the incident four vehicles were crashed into and the vehicle's collision avoidance system did not activate as intended. The contact sustained an injured back which later required medical treatment. A second motorist sustained an undisclosed eye injury. No further information was available. A police report was taken at the scene and the vehicle was towed to the home. The cause of the failure was not yet determined. The vehicle was a total loss. The manufacturer and local dealer were not yet contacted. The failure mileage was 22,229.
The contact owns a 2019 Acura MDX. The contact stated that while his wife was traveling on Interstate 75 and driving 85 MPH, the vehicle independently slowed down, failed to accelerate, and shut off. There were no warning lights illuminated. The vehicle was taken to the local dealer, who was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 42,000.
I was getting ready to pass a semi and when I went to accelerate I had no power. I pushed the pedal several times with no power. Then it finally kicked in and the car accelerated. I was almost rear ended due to me losing power. This has happened multiple times. No lights ever come on. I am also experiencing the car completely shutting off while stopped. When it does this, a message pops up that I need to shift to park. It takes a few tries and then I can restart the car. I have taken it to the dealership and they can’t replicate either issue. They told me there are no TSB’s on these issues. Dates this occurred in 2021: 8/27, 9/9, 10/5, 11/5. Dates this occurred in 2022: 3/4, 3/28, and 4/10.
THE VEHICLE IS EQUIPPED WITH SAFETY FEATURES WHICH ARE DESIGNED TO ALERT YOU IF BRAKING IS REQUIRED AND TO BRAKE TO AVOID A COLLISION THE VEHICLE ALSO HAS ACTIVE CRUISE CONTROL WHICH IS DESIGNED TO SLOW YOUR VEHICLE WHEN A VEHICLE ENTERS YOUR LANE WITH IN A PRE SET DISTANCE. CRUISE CONTROL: WHILE DRIVING ON THE FREEWAY USING ACTIVE CRUISE CONTROL MY VEHICLE SLOWED DOWN FROM 70 TO 45 NO VEHICLES ENTERED MY LANE I WAS PASSED ON MY LEFT BY A VEHICLE DOING 80 PLUS. THIS HAPPENED TWICE WITH IN TWENTY MINUTES. I DROVE THROUGH COSTCO AT UNDER 5MPH NO VEHICLES INFRONT OF ME MY SAFETY SYSTEM STOPPED MY VEHICLE. NO CARS JUST ONE PEDESTRIAN ON THE PASSENGER SIDE. I HAVE BEEN STOPPED A RED LIGHT WHEN MY BRAKE WARNING INDICATOR FLASED THIS SHOULD ONLY HAPPEN WHEN I AM MOVING AND NEED TO BRAKE TO AVOID HITTING SOMEONE OR SOMETHING NOT WHEN I AM ALREADY STOPPED ALSO HAPPENS WHEN USING THE VEHICLES BRAKE HOLD FEATURE.
THE VEHICLE SUDDENLY ACCELERATES ITSELF. THIS IS ESPECIALLY TRUE IN LOW SPEEDS. THERE HAVE BEEN NUMEROUS TIMES THAT I AM DRIVING SLOWLY IN A PARKING RAMP AND THE VEHICLE WILL JUST SHOOT FORWARD AS THOUGH I AM PRESSING THE GAS PEDAL, WHEN I AM NOT! I AM GRATEFUL THAT NO ONE WAS INJURED DUE TO THIS - BUT THIS IS DANGEROUS AND HONDA NEEDS TO LISTEN AND DO SOMETHING.
TL* THE CONTACT OWNS A 2019 ACURA MDX. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE ACCELERATED ON ITS OWN. THE FAILURE OCCURRED WHILE SLOWING DOWN AND APPROACHING A STOP LIGHT AND ALSO WHILE DRIVING AT HIGHWAY SPEEDS. THE VEHICLE WAS TAKEN TO ACURA OF PEABODY (233 ANDOVER ST, PEABODY, MA), BUT THE FAILURE COULD NOT BE DUPLICATED AND THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED CASE NUMBER: 09964379. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 1,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026