BluemoonQ5

After experiencing many false alarms and instances when the car would suddenly brake very hard for no apparent reason, I decided against using the PreSense function. At the rate of one false alarm per ride, there won't be much of a brake system left. Turning off PreSense is easy enough but it will not remain off. After the car ignition is switched off and back on again, the PreSense automatically reactivates itself requiring going through the menu and manually turning it off. Does anyone have an idea as to how the PreSense can be configured to remain off even after the ignition is cut?

AndroidRobot

So you've had pre sense engage AEB for no reason? Mines never used AEB unless it's via ACC so maybe your sensors should be recalibrated. There's a way to turn it off if your read the manual.

paperbridge

I've had one false alarm in 3K miles of driving, and haven't seen lots of reports of others having that many issues - have you brought it to your dealer to figure if there's an issue?

AndroidRobot

Mines set to early, it warns me when I approach a stopped or slow car too fast, that's about it. I've never had AEB engage while going forward.

paperbridge

It happened to me once (as I mentioned). Traveling on a road with no divider, 2 lanes per direction in the inside lane. No car in front of me for 100 yards, a car to the right/behind me in the outside lane and some oncoming traffic in the other direction. I could not figure out any reason why the car decided to brake. It's pretty jarring (physically and emotionally).

AndroidRobot

I would be concerned too! Take the car into the dealer and have them check your sesnors. Do you have the DAP as well?

paperbridge

I do not have DAP.
I haven't had occasion to bring it to the dealer yet (for any other reason), but when I do, I will ask about this.

AndroidRobot

Out of curiosity did you change your tires or wheels?

paperbridge

No. P+ with nav, 19" wheels. exactly as it came from the dealer.

Bmiletta

I was wondering in the MMI for this setting of Early, Medium, or Late for presense warning - is it the actual warning time that you are adjusting or is it the actual function of the car taking over as well? I have mine on medium.