Adaptive Equipment problems of the 2014 Acura MDX

Traveling 65 mph on a freeway with adaptive cruise control (acc) engaged, vehicle suddenly brakes hard on its own for no apparent reason; dropping 10 mph in a heartbeat. The vehicle did not produce a collision warning message on the dash. The cars in front on me were well beyond the longest 4 bar range of the acc so it was not detecting and locked onto a car in front of me. There were no cars on either side, no car crossing in front of me and the road was flat with no obstacles. Fortunately, the car behind me was not tailgating as the sudden deceleration could have caused a rear end collision. Sudden deceleration has happened twice during the six weeks I've owned this vehicle. I've also noticed that the acc is inconsistent, often sluggish, in responding to the speed of traffic when it is detecting a car in front of me; creating additional hazard concerns for the driver.

Our vehicle is an Acura Mdx 2014 with the advance package. One feature of the package is adaptive cruise control which aims to keep the vehicle moving at a steady rate and at a set distance from any vehicle in front of it. On several occasions, when vehicles in front of ours slows down or a vehicle merges from another lane in front of us (even transiently), instead of gradually braking and speeding up, the Acura performs sudden deceleration with hard braking even if the vehicle in front is doing the same speed or going only slightly slower. After the hard braking starts, if the vehicle in front speeds up, our vehicle does not recover and start to accelerate again. I have a pregnant wife who is the main driver of the car and I am concerned that this problem will cause her to be rear-ended.

Defect shows as immediate loss of toe alignment in both front tires, lane keep assist computerized feature in unable to turn steering wheel right, and steering wheel position sensor is unable to remain fixed at zero. Steering wheel position sensor: forces the vehicle into oncoming traffic by automatically during front wheels two and five degrees with maximum turning force applied when the road presents any combination of curved, tilted, and bumpy condition. Steering wheel hand sensor – computer applied over-steer forces the car left or right several degrees depending on hand position. Ids: three settings force steering wheel several degrees left or right during braking depending on last applied steering adjustment. When the road is a combination of curved, substantially sloped, or bumpy the computer will apply maximum computerized turning force to move steering wheel up to 45 degrees left into oncoming traffic even when the road slopes and/or curves away from oncoming traffic. A series of software command conflicts and overrides between ids, steering wheel position sensor, steering wheel sensor for hand position, radar, and road position sensor, and other-vehicle sensors routinely cause the computer to perform unintended drive into incoming traffic with maximum computer applied force. Manufacturer refused to provide dealers computer diagnostic equipment that aligns steering wheel sensor with navigation computer, radar, internal/external sensors, ids, and steering wheel hand sensor unless the consumer is willing to pay $700 in equipment transfer costs. Manufacturer demands dealers deny service or avoid writing work orders that contain any indication of a problem with steering wheel sensor, radar, computer-integrated hardware, or ids. Instead verbalize computer-related issues with repair techs to avoid regulatory reporting and California lemon law requirements.