There are 12 owner-reported driver assist & adas complaints for the 2019 Acura MDXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
UNKNOWN
Multi purpose camera stops working while in use causing safety features to stop working. Has almost caused a serious accident.Acura is stating it is not an issue they feel obligated to fix.
The front camera mounted near the rear view mirror stopped working which caused several systems to fail. Acura was slow to respond and was not able to complete the repair because the camera was backordered for several months.
Constant errors in dash. Cruise control fails while driving. Auto braking no longer works. Warning of other vehicles in blind spots does not work anymore. Many error in dash display regarding the camera and lkas are displayed.
Camera is failing - reportedly due to a bad internal ground-wire. Acura is charging $900 for the part and $1600 for the installation and calibration of a new unit !! Also - the unit is a black color, and located right behind the windshield, so bakes itself to death. Acura should be using white colors inside the space, limit the un-used volume, and recalling the units (or at least providing a low-cost unit) to allow simple replacement and improve safety. Such an important AND EXPENSIVE part should not be failing so often. The MXers.org web site has hundreds of posts about this item. ALSO - the parts should be pre-calibrated! Acura wants several hundred $$ to calibrate it and 4 days to do it. NHTSA should NOT be requiring ADAS technology if it is so fragile and expensive to fix/replace, as in the long-run owners will not maintain it (e..g $2,400 repair bills for a small camera part nad 5 minute change). See: https://www.mdxers.org/threads/multiple-errors-that-wont-go-away-adaptive-cruise-lane-keep-assist-road-departure-collision-mitigation-now-with-troubleshooting-and-solutions.182671/
The windshield camera suddenly failed one day while driving and it ended up disabling all the driver assist systems including the emergency braking, lane keep assist, forward collision, auto high beam, cruise control etc. Over the next few weeks the system kept randomly working and failing during driving every few hours or minutes. The discussion forums are filled with people complaining about the same issue with ALL Honda and Acura vehicles starting 2013 where they camera suddenly fails and then start working intermittently until it eventually fails. It seems Honda is using the same defective camera across all it's Honda and Acura models which is a big safety hazard and they refuse to acknowledge the issue.
The front camera responsible for forward collision warning and lanekeep has failed. The camera has part number 36160-TYR-A02. It failed on it's own but it could have been alot worse if it failed before a collision occurred. The dealer and independent repair shop said it was the camera code U3000-49 and this was an out of pocket repair. The symptoms include having these error messages on the gauge cluster. Adaptive Cruise, Lane Keep Assist, Road Departure, Collision Mitigation, and Auto High Beam Problem. At first it would intermittently show up but then after a while those errors would not go away.
2019 Acura MDX A-Spec Started up the SUV and the following appears on the dash: ACC problem Collision Mitigation Problem Lake Keep Assist Problem Auto High Beam Problem Battery has been replaced and issue still exists. Cruise control does not work at all. "Break Problem" light remains lit.
Problems may occur intermittently, including during engine startup and while driving, with warning messages appearing on the dashboard： Auto High-Beam Problem, Road departure mitigation sysem problem,, Collsion mitigation system problem, Lane keeping assist problem and Adaptive cruise control problem. All of Advanced Driver Assistance Systems can't be used.
Forward Collision Mitigation braking randomly activates and slams on the brakes despite no cars/obstacles/items in front of it. I have luckily not been rear-ended, but I've had several close calls when driving in traffic (car noses dipping behind me). The dealership has so far been unable to replicate this issue and stated that unless they can replicate there is nothing they can/will do to fix the issue.
The contact owns a 2019 Acura MDX. The contact stated that while driving approximately 65 MPH, the Forward Collision-Avoidance Automatic Emergency Braking suddenly activated causing the vehicle to abruptly stop in the middle of the road. During the failure, the dashboard warning lights and messages remained illuminated. The vehicle was taken to the local dealer who serviced the vehicle. No further information was available. The contact indicated that the failure reoccurred approximately three months later. The manufacturer was not yet notified. The failure mileage was 41,000.
TL* THE CONTACT OWNS A 2019 ACURA MDX. THE CONTACT STATED THAT WHILE DRIVING WITH THE CRUISE CONTROL ENGAGED, WITHOUT WARNING THE AUTOMATIC EMERGENCY BRAKE ENGAGED, CAUSING THE VEHICLE TO COME TO A COMPLETE STOP. THE CONTACT STATED THAT THE FAILURE WAS EXPERIENCED MOST OFTEN WITH A PASSING VEHICLE ON THE DRIVER'S SIDE THAN ON THE PASSENGER'S SIDE. THE VEHICLE WAS TAKEN TO HOEHN ACURA LOCATED AT (5556 PASEO DEL NORTE, CARLSBAD, CA 92008 (877) 281-4655) WHERE IT WAS DIAGNOSED THREE TIMES HOWEVER, THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE RECURRED MULTIPLE TIMES. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 2,000. *LN
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