2017 Acura MDX Electrical System Problems

The main issue is engine knocking and ticking also winding noise. There has been an issue with electrical with rear passengers getting burnt due to heat coming out of rear when rear system is off.

On 11.25.25, my MDX was involved in a multi-car hit and run on highway 101 SB at the Laurel Drive off ramp. The vehicle sustained two points of impact: (1) substantial front/driver side impact (2) rear-passenger side impact. Despite the severity, location of impact and speed of travel at the time of the collision, all airbags deployed except for the driver side curtain airbag. Importantly, at the time of the crash, the Lane Keeping Assist System (LKAS) and associated AcuraWatch driver assist systems were activated. The vehicle’s safety assistance technology was engaged and functioning immediately prior to impact. Considering the above mentioned facts, driver side airbag failing to deploy, raises serious concerns regarding Possible software or signal-processing malfunction or electronic communication between radar/camera systems and the SRS module. The nature and severity of the impact clearly met deployment criteria for the driver side airbag. This failure raises concern that there may be a defect in the SRS system, including but not limited to: Airbag inflator component or propellant issue. Supplemental Restraint System (SRS) crash sensor calibration. SRS control module deployment logic. Crash signal sensors. Event-trigger logic or interconnnect failure. Wiring harness or inflator defect. Whether the system registered steering correction or impact prediction, the failure to deploy increased my risk and resulting injury, as well as compromised the fundamental safety system designed to protect drivers in front-impact crashes.

Odometer Fraud. The contact purchased a 2017 Acura MDX. The contact stated that upon taking the vehicle to an independent mechanic for engine service, the mechanic discovered that there was a mileage discrepancy with the vehicle. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 135,316, however, the independent mechanic discovered that the actual mileage was 289,471.

The front lane assist camera has failed internally and now the lane assist, forward collision and adaptive cruise control no longer work. This has been a known issue and has happened to other Acura MDXs. The warning lights are now coming on saying the vehicle had a brake system error. It also states that all systems related to this camera are inoperable.

I was driving on the road and an electronic parking error light came up, along with emissions error. I pulled over to the side and I could not start the vehicle and the gears won’t shift

My Vehicle intermittently fails to go into "Drive" when pressing the gear shift button. Additionally, various warning messages appear at random, including: Lane Keeping Assist Problem, & Road Departure Mitigation System Problem. I have brought my vehicle to DCH Montclair Acura#709, located at 100 Bloomfield Ave, Verona, NJ 07044, on January 10, 2025, February 18, 2025, and March 13, 2025. Despite these visits and an inspection conducted by my extended warranty provider, the problem continues. On [XXX], while my daughter was a passenger, the vehicle once again failed to shift into drive when pressing the "D" button. This incident, like others before it, occurred without warning and reinforces my growing concern about the safety and reliability of the vehicle. I am now afraid to drive the car, unsure when it might fail again. I respectfully request that Acura take immediate and decisive action to investigate and resolve this issue. If a reliable repair cannot be made, I would like to discuss alternative remedies such as vehicle replacement of buyback under applicable warranties and safety protections

There is an active recall on the brake calipers and fuel pump for Acura Mdx 2017, and Hondas. My Acura Mdx 2017 has the same issues with a code of p07e4, which is the brake calipers. When looking up the recall of my car, there is no recall on it when inserting the VIN. My car is an Acura Mdx 2017; I do not understand why it is not included in the recall when it should.

Dashboard lights are flickering and the headlights are intermittently turning on when the engine is off. This is a commonly reported failure and defect in the the Keyless Access Control Unit with Honda Ridgeline, Odyssey, and Pilot and Acura MDX and RDX models with keyless start. However, Honda would not recall the defect.

On highway and switching lanes. All of a sudden ELECTRIC PARKING BRAKE AND ALL DRIVER ASSIST LIGHTS CAME ON. Pull over light came on as well. HIT ON LEFT REAR SYMBOL CAME ON. Was never hit just a close car on driver left rear side when switching lanes. Made it home and vehicle wouldn’t switch back into drive mode. Acura didn’t do its due process and assumed a new transmission was needed. Replaced and a month later ELECTRIC PARKING BRAKE sign starts flashing again. Now dealership is saying I need a new catalytic converter. Refused as I believe Acura has been incorrect about the diagnostic. They also stated my vehicle was in a collision and it wasn’t. They refused to check electrical issues and update software as these things are not in my control. It is my belief the car had a faulty collision warning which is causing other issues as well as Acura refusing to probably assist and diagnose without me continuing to be falsely diagnosed

The sensor under the hood malfunctions causing the car alarm system to go off and battery to get drained. Multiple batteries were changed because initially the thinking was that the battery needed to be replaced. Car alarm would go off in the middle of the night (with a new battery) when parked in the garage. All the electrical systems and lights would start turning off and on as if the car is possessed. Manufacturer is aware of the problem. Many others are complaining on the internet. There are variety of hacks including rigging the sensor that are suggested. Dealer said the entire control unit had to be replaced for $1122. Repair was made. They said when they run out of parts (control unit) they also disconnect the sensor. So you have cars on the highways that are no longer appropriately indicating when the hood is down (shut correctly or whether it is a false alarm. I called the manufacturer they didn't take responsibility (Case 14470102) with Acura/Honda.

There are warning lights for all safety modules, The LKAS, Headlight warning system accident prevention system, collision avoidance system etc..

Backup camera stopped working.

While driving the car started to loose momentum and began stuttering until finally stopping abruptly and applying the electronic braking system. All warning alarms were illuminated on the dash. I was not even able to pull over completely off the road either putting me and my family in danger from not being off the road. Acura dealership service center informed me it was a bad high pressure fuel pump located on the engine block itself. There are recalls for this exact part neginnibg from 2018 on the acura MDX model. My model is a 2017 making me wonder if the recall should include earlier year models of acura mdx.

Driving in rain and multiple systems failed at once without any reason. Car indicates brake systems, lane assistance, power steering, collision mitigation, stability control, etc all indicate problems. No reason for it to all go out at once.

While driving suddenly all error warnings came up. It included Check Engine Light, Error messages included: Electronic Braking System error, Emission System error. The light indicative of parking P! kept blinking also the (P) came up on the dashboard. Interestingly after some time this all cleared on its own. Then came back again only this time it stayed on. I don't know if this has compromised the safety features of the vehicle including emergency braking (crash avoidance/vehicle proximity)

At different times, either with my wife or I driving the vehicle, we will receive error messages on the dash indicating that various systems are inoperative. These involve the lane keeping assist system and the braking system. I also believe that the cruise control does not function when these messages appear.

WHILE DRIVING ON NORMAL ROAD WITH NO OTHER CARS AROUND, THE EMERGENCY BRAKING SYSTEM/FORWARD COLLISION ACTIVATED AND IMMEDIATELY STOPPED MY CAR WITH NO DANGER PRESENT. THIS RESULTED IN THE CAR BEHIND ME SWERVE TO AVOID HITTING ME IN THE REAR. NO WARNING LIGHTS WERE ON THE DASH OR NO AUDIBLE WARNING EITHER. THIS SEEMS TO BE A MALFUNCTION IN THE SYSTEM.

INCIDENT #2 DRIVING DOWN CITY STREET APPROACHING AN INTERSECTION. NO CAR IN FRONT AND NO CAR BEHIND. IN THE MIDDLE OF THE INTERSECTION THE CAR AUTO BRAKES TO A COMPLETE STOP BEFORE RELEASING BACK TO NORMAL. IF A CAR WERE BEHIND ME I WOULD HAVE MOST SURELY BEEN REAR ENDED.

SINCE OWNERS AND ON 4 SPECIFIC OCCASIONS. WHILE DRIVING AT HIGH SPEED UPON ACCELERATION AT 70 MPH AUTO WENT DEAD. LOST ALL POWER. AFTER EIGHT MINUTES AUTO RESTARTED. 9 MONTHS AGO, WHILE PLACED INTO REVERES TO AUTO SELF ACCELERATED T HIGH SPEED. AFTER BRAKES APPLIED AND VEHICLE PLACED INTO DRIVE VEHICLE ACCELERATED AT A HGH RATE OF SPEED. LOCK BRAKES PUT VEHICLE INTO NEUTRAL RESTARTED. ONE MONTH AGO WHILE TURNING LEFT INTO TRAFFIC AT A MAJOR INTERSECTION, CAR BRAKES APPLIED AWAITING LEFT TURN AGAINST TRAFFIC. WENT TO ACCELERATE, CAR DASH LIGHTS WENT WILD ALL BEGIN BLING RAPIDLY, DASH WENT BLACK, ABS BRAKES AND BRAKE PEDAL WENT TO FLOOR CAR WENT BY ITSELF INTO NEUTRAL. TOOK OVER 8 MINUTES TO RESTART. ON 9/24.19 TUESDAY AT 1:41 PM WHILE TRAVELING WEST BOUND ON INTERSTATE 90, AT 74 MPH WHILE PASSING A SEMI TRUCK AS I PASSED THE TRUCK, WITH A CLEAR DISTANCE AND PROCEEDED TO TURN INTO THE RIGHT DRIVING LANE IN FRONT OF THE TRUCK AS I PULLED RIGHT THE VEHICLE DASH WENT BLACK, THE ABS AND BRAKE PEDDLE WENT TO THE FLOOR AND THE CAR DECELERATED RAPIDLY FROM 74 TO 50 MPH WITHIN A SECOND. THE SEMI LOCKED THE BRAKES TO AVOID A SERIOUS REAR END COLLISION. AS I REACHED 50 MPH THE DASH RE LITE AND ALL INSTRUMENTATION APPEAR TO FUNCTION AND AS I PUSHED DOWN ON THE ACCELERATOR THE VEHICLE REGAINED SPEED. I CAN REPORT PERHAPS 15 TO 20 OTHER MAJOR ITEMS WITH COLLISION AVOIDANCE AND ELECTRONIC DASH ABNORMALITIES. THE VEHICLE HAS BEEN IN THE ACURA SHOP MINIMALLY 15 TO 20 TIMES OVER 24 MONTHS TO NO AVAIL. ACURA REPORTS SOFTWARE UPDATES OR BAD BATTERY CAUSING LOW VOLTAGE SIGNALS. THIS VEHICLE IS DANGEROUS AND IF NOT ADDRESSED WILL CAUSE DEATH.

SPEED CONTROL WOULD NOT ENGAGE. THIS HAS HAPPENED BEFORE. AUTO BRAKES ENGAGED WHILE DRIVING DOWN CITY STREET AT 40 MPH IN OUTSIDE LANE OF 4 LANE ROAD. NO CARS IN FRONT OR IMMEDIATELY TO MY LEFT. FORTUNITLY THERE WERE NO CARS/TRUCKS BEHIND ME. CAR CAME TO SUDDENED STOP ENGAGING THE SEAT BELTS. AFTER STOPPING I PUT PUT ON GAS AGAIN AND DROVE 2 MORE BLOCKS BEFORE I PARKED CAR FOR 2+ HOURS. CALLED DEALERSHIP & DROVE TO SERVICE DEPARTMENT FOR REPAIR. DEALER KEPT CAR OVERNIGHT AND SAID THERE WERE NO ISSUES THEY COULD FIND BY DRIVING OR CHECKING DIAGNOSTIC COMPUTER RECORDS. SO THERE WAS NOTHING THEY COULD DO. THESE ELECTRICAL ISSUES HAVE APPEARED AND COULD NOT BE DUPLICATED IN THE PAST 20 MONTHS......1 - SUDDENDED EMERGENCY BRAKING - 1X, SPEED CONTROL NOT ENGAGING - 3 TIMES, PASSENGER SIDE MIRROR NOT CLOSING - 10+ TIMES, CAR LOCKING OR NOT UNLOCKING DOORS WITH KEY INSIDE CAR - 3 TIMES. ONCE WILL AT AIRPORT AND WITH CAR RUNNING.