Owner-reported complaints naming the brake system, filed with NHTSA
Data refreshed
Brakes reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
9
Latest Jun 15, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
5%
of 183 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
2
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
2
What this page shows
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake. Every record below is an owner-reported complaint about the 2019 Acura MDX submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 9 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Owner reports naming brake
Shown in the owner’s own words, exactly as filed
BrakesElectricalFuel system
Filed Jun 15, 2026
Under normal driving conditions warning lights for "electric parking brake" and "emissions system problem" came on the dashboard and the 'brake' light began flashing. No change in performance. Auto parts store diagnostic indicated EVAP valve as the possible problem code, along with two other unrelated codes - none connected to brakes or emissions. The 12-volt battery tested strong. Drove another 100 miles with lights still on, but the 'brake' light would turn off after about 5 mins of highway driving/no braking. The next day the warning lights continued. After normal city driving I shut the car off, waited 30 seconds, pushed the start button twice (accessory mode) and held the brake pedal down while pulling up on the brake release button for 10 seconds. Started the car without any error messages.
NHTSA ID
11744197
Incident
Jun 12, 2026
BrakesElectrical
Filed Nov 19, 2025
Turned on my car last night and many lights appeared including emissions system problem, electronic brake problem and SH-AWD malfunctioning. All the lights came on at once. According to forums, this is happening with many Acura RDX, MDX models and manufacturer does not have a clear way to repair or resolve the issue. My car has had all the routine maintenance and is scheduled for the 2 recalls to be repaired next week.
NHTSA ID
11700361
Incident
Nov 18, 2025
BrakesDriver assistance
Filed Jan 13, 2025
Crash reported2 injuries reported
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.
NHTSA ID
11635640
Incident
Jan 5, 2025
Mileage
22,229 mi
BrakesDriver assistance
Filed Apr 18, 2024
MULTIPLE OCCASIONS THE BRAKE COLLISION SENOR ACTIVATES WITHOUT AN OBSTACLE IN SITE. THE CAR WOULD SPONTANEOUSLY BRAKE AS THE WARNING SENSOR FLASHES ON THE DASHBOARD. NO RESULTING CRASH, BUT A FEW CLOSE INCIDENTS.
NHTSA ID
11583749
Incident
Apr 18, 2024
Brakes
Filed Aug 30, 2021
Crash reported
The contact owns a 2019 Acura MDX. The contact stated that while driving approximately 3-4 mph, he depressed the brake pedal but it failed to respond. The contact drove into a pole. The brake message was displayed. There was no reported injuries, fire or air bag deployment. A police report was not filed. The vehicle was towed to the local dealer but, the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 37,000.
NHTSA ID
11430987
Incident
Aug 27, 2021
Mileage
37,000 mi
BrakesElectrical
Filed Dec 31, 2019
THE AUTOMATIC COLLISION MITIGATION SYSTEM HAD A COMPLETE 100% LOCK UP OF MY BRAKES DURING A CROSS OF AN INTERSECTION . ALTHOUGH I WAS WEARING MY SEATBELT THE FORCE OF THE STOP THREW MY HEAD INTO THE STEERING WHEEL. IT IS A COMPLETE MIRACLE THAT THE CAR BEHIND ME DID NOT REAR-END ME. THIS SYSTEM ROUTINELY GIVES FALSE POSITIVES WHEN GOING AROUND CORNERS WHEN YOU ARE IN THE CENTER LANE AND IT BEEPS AND PULSES THE BRAKES. THIS TIME, THE CAR STOPPED COMPLETELY AND I HIT MY HEAD AND WAS LUCKY TO NOT CAUSE AN ACCIDENT. THERE SHOULD BE A WAY TO 100% PERMANENTLY TURN OFF OR ACURA NEEDS TO FIX THEIR SOFTWARE. TOO MANY FALSE POSITIVES AND ACTUALLY IS LESS SAFE WITH IT ON.
NHTSA ID
11292242
Incident
Dec 31, 2019
Mileage
18,000 mi
Brakes
Filed Nov 6, 2019
AFTER VEHICLE POWERED OFF AND AND AFTER COUPLE OF HOURS LATER, THE BREAK PEDAL GETS VERY STIFF. SO, TREMENDOUS FORCE NEEDS TO APPLY TO START TO ENGINE. AFTER AROUND 600 MILES OF DRIVING THIS NEW VEHICLE, THIS PROBLEM HAPPENED. MY WIFE IS PRIMARILY DRIVING THIS VEHICLE. AND THUS SHE IS GETTING KNEE PAIN ISSUE TO STIFF BREAK PEDAL. ACURA CONFIRMED THIS IS KNOWN ISSUE BUT THEY DENIED TO FIX IT AS INDICATED IN THE ATTACHED DOCUMENT.
NHTSA ID
11278498
Incident
Sep 15, 2019
Mileage
600 mi
Brakes
Filed May 24, 2019
THE ANTI COLLISION SYSTEM IS DEFECTIVE AND IT'S PUTTING MY FAMILY AT RISK. IT SLAMS ON BREAKS BY ITSELF WITHOUT ANY OBSTACLE IN FRONT. IT STARTED HAPPENING MORE AND MORR FREQUENTLY. CALLED THE ACURA DEALRSHIP AND THEY CLAIM IT'S NORMAL AND THE CAR WOULD BREAK FOR ANY PERCEIVED OBSTACLE IN FRONT OF IT.
NHTSA ID
11209745
Incident
May 24, 2019
Mileage
4,000 mi
Brakes
Filed May 24, 2019
BREAKING LIGHT GOES ON AND THE BRAKE GETS STUCK AND MAKES A GRASPING NOISE LIKE SOMETHING IS GRINDING AND THE PEDAL IS STUCK DOWN.
NHTSA ID
11209628
Incident
May 24, 2019
Mileage
4,000 mi
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Other components reported on this vehicle
Categories with enough reports to have a page of their own