While using Intelligent Adaptive Cruise, the vehicle suddenly thought the speed limit was 85mph and quickly started accelerating. Confused, I hit the brakes to stop the acceleration. I have uploaded a photo of the dash that I took showing that the system read the speed limit sign as 85. I saw no speed limit sign in the area, so, I have no idea what prompted the system to change speed. I was talking on the phone via Android Auto and using Waze, via Android Auto, USB direct connect. The only other problem I've ever had with this system is on interstates that have specific Truck speed limits in West Virginia. There, sometimes trucks have slower speeds and this system picks up those truck speeds and decelerates/brakes to comply. While it can be overridden in the moment, the next time it sees such sign, it slows again. This sudden deceleration poses a hazard to other drivers who do not expect a 'non-truck' vehicle to suddenly slow.
2021 Ford Explorer acceleration complaints
Page 2 of 2: complaints 11 to 15 of 15, newest first, as owners wrote them.
On or about 9 am on Tuesday, January 10, 2023, I entered a parking garage facility and drove up the ramp and continued on a level parking area and begin to turn into a parking space beside a large cement column. Just as I entered the parking space at a low rate of speed without my foot on the accelerator, I experienced sudden unintended acceleration which caused the vehicle to narrowly miss the cement column and the front cement wall of the parking space. Fortunately, I quickly braked to avoid a collision and then put the vehicle in park and shut off the vehicle. There were no warning lights on the vehicle dash, and I have not yet taken the vehicle to an authorized Ford Dealer to have it checked. Vehicle is still under factory order and has approx. 26,700 miles.
The contact owns a 2021 Ford Explorer. The contact stated the adaptive cruise control and the collision avoidance systems would malfunction. The vehicle would suddenly deactivate the cruise control and the collision avoidance would detect a non-existing object and stop the vehicle from also turning to avoid the crash. The contact stated that while idled at a stop light when the vehicle suddenly accelerated rear-ending the vehicle in front. The air bags did not deploy however the acceleration did not reach high enough speeds for such a response. A police report was not filed. The vehicle was not towed. There were no injuries or medical attention needed. The contact took the vehicle to the dealer however the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failures. The approximate failure mileage was 10,000.
The contact leased a 2021 Ford Explorer. The contact stated while driving approximately 25 MPH, the vehicle accelerated independently. The contact stated that five minutes later the vehicle went into safety mode and the vehicle failed to move. The low battery message was displayed. The vehicle was towed to the residence. The contact called the local dealer but, the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 7,600.
Adaptive Cruise control reads the overhead electronic posted 65MPH speed limit signs as 85MPH. This only occurs when traveling on I-670 eastbound between Leonard Ave and I-270 on the east side of Columbus Ohio...This section of highway was recently upgraded with "Smart Lane" overhead electronic signs. The dash on this vehicle shows the posted speed limit at all times, but if the cruise control is on the vehicle with automatically go to what it reads and in this case goes to 85MPH! I have driven this vehicle over 5000 miles in 4 different states and this situation only occurs at this particular locatiion. I have contacted State of Ohio, Department of Trtansportation and discussing this issue with Drive Ohio representative Luke Stedke ( [email protected])
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