Scary acceleration

[RickMachE]

Just submitted. My first ever use of the tool

I think that's for APP feedback. Car feedback is in the car on the main screen.

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[Digitalsteve]

I was curious about this so I tested it in an empty parking lot with cruise set point at 55 mph and drive mode set to unbridled. At speeds below 12 mph it wouldn't resume cruise because speed was too low. When testing it at 12 and above, it resumed but did not accelerate fast, it was a slow ramp upward. Also tested with a vehicle in front of me and of course adaptive cruise prevented the car from accelerating at all. So I don't think I buy into this theory.

If cruise is enabled, but no longer engaged (because either you pressed the brake or the vehicle in front of you stopped) then pressing the center button (the one that protrudes on the left side of the steering wheel and is easily pushed) WILL engage the cruise control and the car will begin moving. I do it all the time in stop and go freeway traffic, when the car is stopped for too long for it to start moving again automatically.

 

[Digitalsteve]

So. I guess I'm wondering... every Ford I own, says in the owners manual that cruise control isn't even operable under 35mph.

If cruise is enabled, but no longer engaged (because either you pressed the brake or the vehicle in front of you stopped) then pressing the center button (the one that protrudes on the left side of the steering wheel and is easily pushed) WILL engage the cruise control and the car will begin moving. The Mach-e cruise can be set lower than 35MPH, I do it all the time, I set it to 25MPH in residential areas. OTOH My diesel motorhome does have the 35 MPH limit.

 

[Just Lurking]

Three pages of speculation that this is a cruise control issue without the OP saying one way or another, but as I said yesterday, the pattern really seems to match CSP 24B42 (1 pedal mode disengaging):

I'm almost totally parked in a head in parking space when suddenly the car just takes off and accelerates rapidly. Fortunately I was able to brake before it hit the car in front.

This matches the above CSP, which only occurs below 15mph.

There was a message that flashed on but was gone before I could read it.

The above issue pops up a 1-pedal drive fault message in the instrument cluster just as the OP saw.

The overall situation seems to match perfectly - now it's just up to the OP to respond to confirm one way or another.

 

[Bstronger]

My 2022 mme is now bumping the set speed from 25 to 45 unpredictably. Anyone else?

 

[spicy_taco]

My 2022 mme is now bumping the set speed from 25 to 45 unpredictably. Anyone else?

Is your speed sign recognition setting turned to "on"?

 

[Bstronger]

Is your speed sign recognition setting turned to "on"?

Yes

 

[VaporTrails]

Yes

It is doing as you have instructed. When CC is engaged, it will accelerate to your current set point. When it comes to the next speed change (which might not be a sign you see). It will accelerate/decelerate to the detected limit plus your speed tolerance . It will also rapidly decelerate to 35 if it thinks you are in a construction zone from a year ago. I’m still on the side of this feature not being helpful. It leads your car to do unexpected things from the frame of reference of drivers around you.

I do believe that is a different problem set than that which the OP described.

 

[Bstronger]

It is doing as you have instructed. When CC is engaged, it will accelerate to your current set point. When it comes to the next speed change (which might not be a sign you see). It will accelerate/decelerate to the detected limit plus your speed tolerance . It will also rapidly decelerate to 35 if it thinks you are in a construction zone from a year ago. I’m still on the side of this feature not being helpful. It leads your car to do unexpected things from the frame of reference of drivers around you.

I do believe that is a different problem set than that which the OP described.

It is a

It is doing as you have instructed. When CC is engaged, it will accelerate to your current set point. When it comes to the next speed change (which might not be a sign you see). It will accelerate/decelerate to the detected limit plus your speed tolerance . It will also rapidly decelerate to 35 if it thinks you are in a construction zone from a year ago. I’m still on the side of this feature not being helpful. It leads your car to do unexpected things from the frame of reference of drivers around you.

I do believe that is a different problem set than that which the OP described.

it is a different problem. The speed limit sign is 25 mph which is my set speed. The car accelerates to 45 mph.

 

[load97]

Gm had issues of people hitting the stereo/volume buttons in the mid 2000’s or so that I know of. Affected Sky, Solstice, Cobalt, Corvette’s etc etc. they did a slight redesign from flat buttons to raised. I’ve never had the issue in any of my GM cars that had that steering wheel, or the Mache. But I could see how it would accidentally happen.

 

[ChehRob]

Needs to be unique chime alert when it recognizes a new speed sign.

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