Navigate on autopilot - Interstate Exit

[PatsFan]

Does anyone know how M3 behaves when it’s on Navigate with AP and exits from Interstate. Yesterday I was driving on 65 with autopilot, Nav shows I need to take exit which was fine but car was above to take exit at same 65mph speed , I just got scared and cancelled the AP. Does the car slow down to 45 or so which is the safe limit or we are not supposed to have Nav on AP during exits.

 

[apsen]

Does anyone know how M3 behaves when it’s on Navigate with AP and exits from Interstate. Yesterday I was driving on 65 with autopilot, Nav shows I need to take exit which was fine but car was above to take exit at same 65mph speed , I just got scared and cancelled the AP. Does the car slow down to 45 or so which is the safe limit or we are not supposed to have Nav on AP during exits.

Some exists could be taken at full speed... Although often it kind of oversteers if taking exit at full speed. Never goes past the edge of the lane but gets real close to it. If forced to take exist slower by the car ahead it does ok.

 

[C141medic]

Does anyone know how M3 behaves when it’s on Navigate with AP and exits from Interstate. Yesterday I was driving on 65 with autopilot, Nav shows I need to take exit which was fine but car was above to take exit at same 65mph speed , I just got scared and cancelled the AP. Does the car slow down to 45 or so which is the safe limit or we are not supposed to have Nav on AP during exits.

I’ve used NOA on a few occasions and one of the features is automated exit off interstate ramps. It also warns you when the NOA will end through screen prompts. NOA is great but the only thing I don’t like is it speeds up as it’s getting off the exit and it takes the exit fairly abruptly. Not sure if others have experienced this but that’s my experience.

 

[DriveMe]

It changes to the exit lane at full speed (rather aggressively), but then it slows down on the exit curve as needed.

 

[PatsFan]

It changes to the exit lane at full speed (rather aggressively), but then it slows down on the exit curve as needed.

Crazy to know that. If exit ramp is curvy and if car exits at 65mph, passenger’s heart might stop

 

[DriveMe]

Crazy to know that. If exit ramp is curvy and if car exits at 65mph, passenger’s heart might stop

No, it's not that bad in my experience. It slows down at the curve.

 

[ewoodrick]

It does as it has for months. It starts to ramp the speed down on the ramp as can be seen when the set speed starts spinning

 

[chronopc]

Does anyone know how M3 behaves when it’s on Navigate with AP and exits from Interstate. Yesterday I was driving on 65 with autopilot, Nav shows I need to take exit which was fine but car was above to take exit at same 65mph speed , I just got scared and cancelled the AP. Does the car slow down to 45 or so which is the safe limit or we are not supposed to have Nav on AP during exits.

For the most part it does slow down. I have aborted when I didn't feel comfortable with how it was behaving. Machine + Human > Machine or Human.

 

[akraut]

In most cases that slow-down will start even with TACC on and autosteer off.

 

[whatthe2]

It depends. On what I have no idea. I have had it try to blast through a hairpin turn from one interstate to another (one time). All the other times it has taken this same exit just fine, slowed appropriately and continued on NoA just fine.

There is also one exit (E-470 EB to Parker Road - for those in the area) that it never exits. It tells me that an exit is coming but blows past the exit, or at least tries to.

That being said, I love the feature. In fact, today while using it, I confirmed a lane change to a faster lane. The car started to move over and noticed the car behind me was starting to change lanes left so it stayed in the current lane. The guy behind me ended up staying behin me and the car saw that as well. It went ahead and made the lane change without me doing anything. I was quite impressed.