Two problems related to warnings have been reported for the 2018 Acura MDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Acura MDX based on all problems reported for the 2018 MDX.
Lane keep assist, adaptive cruise control, forward collision warning all stopped working and received error codes. Dealership stated camera was faulty and needed to be replaced at my cost. Continued issues with electrical systems where the car alarm will go off intermittently, and vehicle will not lock unless manually locking. Dealership stated Smart control unit needs to also be replaced at my cost. Part number for control unit #38320 was issued by Honda motor company service bulletin 21-055 for their Honda ridgeline. Acura dealer will not honor since part number does not specify Acura. Part issued in service bulletin is 38320-t6z-a11 (Honda ridgeline) part needed to be replaced by Acura is 38320-trx-a11. Other service bulletins related to original issues: 20-015, 19-005, 23-008, and 24-022 and safety recall report 23v-751. Dealership is still placing responsibility of repair of defective parts on car owner.
2018 purchased a little more than a month ago as a certified used Acura. Twice now we have been overridden by the automatic forward collision detecting something in front when nothing was there. Once on the freeway went from 70mph to 15 quickly and almost got rear ended. Just now on city street car stopped in the middle of intersection while turning left and overrides driver pressing gas pedal in both cases. Makes us scared to drive SUV further and we have turned off that feature to see if it still happens.