Three problems related to automatic emergency braking have been reported for the 2021 BMW X3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2021 BMW X3 based on all problems reported for the 2021 X3.
Constant emergency braking when I’m not near another vehicle.
Upon starting the vehicle, the electronic dashboard comes on, declares “reduced driver assistance” then about 15 seconds later, the entire dashboard goes dark and won’t come back on until the car has been shut down for several minutes. This sequence of events happens 95% of the time that I start the car. Upon restart, the dashboard will stay on about 40% of the time, the other 60% it shuts off again. While I can still see my speed in the heads up display, I have no idea how much gas I have, I can’t get any information from the dahsboard and I can’t use the cruise control. I’ve read about other owners of the 2021 BMW X3 m40i having this same issue however the dealership seems to have no idea and wants me to spend $1,000 in diagnostics to see if they can find the problem…. Then I would have to pay to have it fixed as well. This seems like a pretty big safety issue.
Traveling on 2 lane road with no cars around, bright day, 2:30pm about 40mph. Emergency braking beeped twice and immediately slammed on the brakes. Not sure what it thought it saw- tree shadows? the feature was set to medium. If another car was behind us it would have slammed into us. 5th time in 2 years. The dealer just shrugs and says to not set it to high responsiveness. This is a bad defect.
| Automatic Emergency Braking problems | |
| Warnings problems |