Phantom braking

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Tony V

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Aug 19, 2018
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Holbrook New York
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#1
Anyone seeing increased phantom braking lately on autopilot? Had more than a few today, including one so bad I was incredibly close to getting rear ended. I don’t see any patterns like bridges or overpasses. Almost unusable now, especially in HOV lanes.
 
Joined
Jul 18, 2018
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Paso Robles, CA
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#2
Mine does that from time to time. I had it decide the other day that the max speed limit on the highway was 25 mph. That caused a sudden deceleration from 65. It seems that it has been doing better lately though.
 
Joined
Nov 14, 2018
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Pittsburgh, PA, USA
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#3
I went on a trip from PA to FL and many times when the highway passed over surface streets the speed in EAP/NOA would drop dramatically, like it was switching to the speed of the surface street.

Is that what you are referring to?
 

Needsdecaf

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Dec 27, 2018
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The Woodlands, TX
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#4
No, he’s referring to at times, the car will randomly slam on the brakes in traffic when it gets freaked out. For me, it happens when a vehicle is veering toward it from a two lanes over. Car thinks a collision is going to happen and brakes for a second or two.
 

MJJ

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Aug 7, 2016
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Fresno
#5
I have had this happen regularly, frequently but not always, at one specific spot on highway 99 southbound, south of Merced. It has happened at the same rate across several software versions. I’ve started filing a bug report at each event.

I drive that route 5x/week so I have a good sample size.
 

atebit

Event Horizon II
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Jan 25, 2018
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Chester County, PA
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#6
It happens enough to me to be a PITA. If it would only start slowing down sooner approaching a line of stopped traffic. I guess the two behaviors average out.
 

TheHairyOne

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Nov 28, 2018
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Riverside CA
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#8
My car used to beep when I backed into my steep drive way, stopped after last update. I get phantom brake checks but have learned to quickly override by pressing accelerator. Once I noticed it,was due to a crack in the freeway at the start of a hill.
 

MJJ

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Joined
Aug 7, 2016
Messages
34
Location
Fresno
#9
I noticed yesterday that the phantom braking at “the spot” coincided with another error, that being NoA suddenly insists I must change lanes to follow the route. Well, it’s a wide open 2 lane freeway right there which I stay on for 40 more miles.

I’d bet anybody an entire United States dollar there’s a map glitch there.