Sudden automatic braking issue (merged, MG4)

[ReintjeWA]

I had some co-workers being silly in the car park at work, and one triggered the AEB (I felt it was close though, I'd just moved my foot to the brake). They were so in awe the car intervened on it's own, that another had to try it. So I let the car roll towards them without having my foot on the accelerator (just the car in Drive), and sure enough it wouldn't stop... I had to engage the brakes myself before I hit her. The first person then wanted me to try again (perhaps it is indicative of how tough this year is that they'd rather get hit by a car). Anyway, I went a little faster, and had my foot on the accelerator, and then it did work. Although once again I was about to brake myself, as I felt the car left it a little late. She claimed the car knew I liked her more than the other person, but I'm guessing it had to do with the low speed, surprising though, because I would expect this system to be most beneficial in a busy carpark.

Besides from the one false trigger I had months ago, it's behaved well. Although I do dislike pedestrians stepping out close to the front of the car, I always fear the car will deem it too dangerous and slam on the brakes.

 

[NLMGSAN]

Exactly the same thing happened to me & as far as I am concerned the system worked. It can't read minds. I have had the car slow on the motorway in ACC when it has seen something it believes to require slowing/braking. I just put my foot on the accelerator and continue on & all is well.

These systems are on almost all new cars now and are designed to enhance safety and alert the driver. They are not perfect and probably never will be. If you accept that premise, stay alert and ready for the unexpected and react appropriately then job done.

Did ACC remain active? Or was it disabled? Cause if it wasn't disabled it should pick up speed again.

 

[NLMGSAN]

I had some co-workers being silly in the car park at work, and one triggered the AEB (I felt it was close though, I'd just moved my foot to the brake). They were so in awe the car intervened on it's own, that another had to try it. So I let the car roll towards them without having my foot on the accelerator (just the car in Drive), and sure enough it wouldn't stop... I had to engage the brakes myself before I hit her. The first person then wanted me to try again (perhaps it is indicative of how tough this year is that they'd rather get hit by a car). Anyway, I went a little faster, and had my foot on the accelerator, and then it did work. Although once again I was about to brake myself, as I felt the car left it a little late. She claimed the car knew I liked her more than the other person, but I'm guessing it had to do with the low speed, surprising though, because I would expect this system to be most beneficial in a busy carpark.

Besides from the one false trigger I had months ago, it's behaved well. Although I do dislike pedestrians stepping out close to the front of the car, I always fear the car will deem it too dangerous and slam on the brakes.

Odd though. With ACC in a traffic jam the car hits the brakes at very slow speeds. But true, I also sometimes experience a non response with pedestrians or bikers.

Thing is, if I constantly need to check if the car fails to do what it is expected to do, why would I use these systems.....