I haven't had this issue, but there's a YouTube video with someone having a similar issue. It turned out to be a parking sensor that had fallen off the mount. Check your parking sensors to see if they are all where they should be.

 

Thank you will check that out

 

Assuming you were using the ACC etc I have had this occur either twice or thrice. As @Bigwave indicated it’s the CMBS.

The system may be misinterpreting a shadow, a reflection on the glass…..something the system incorrect perceives as an object and conclude the vehicle is going to have a collision.

According to the manual even certain radio waves can be an issue.

I just put my foot on the gas pedal to override the system in all cases.

Check out the limitations on pg. 577 of the manual and see if the circumstances align.

 

Where you going on a straight road or gradual curve? Did you have cruise control engage when the braking occurred?

 

Going straight. No cruise or any self drive turned on. Just driving on highway with all safety functions turned on

 

Going straight. No cruise or any self drive turned on. Just driving on highway with all safety functions turned on

wanted to ask if there were sensors I need to clean to ensure more adequate operations.

Even though you didn't have cruise and lane keep assist turned, at highway speeds the CMBS is activated and uses the same sensors, radar & camera as in my scenario.

Those are the areas that should be kept clean. Limitations are the same.

 

My friend has a Traverse that auto brakes on the highway sometimes. At first she thought there was no reason for it but eventually she realized it only happens when the distance from a barricade or guardrail gets closer to her car. It doesn't do it every time but it's always in the same type of spot when it does. If you were on wide open highway that won't be the cause, but if you were on a road like the one in this picture it could be. The lane stays straight but the shoulder gets narrower.

 

Have a 2023 passport same thing happened a few
Times.