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Adaptive cruise control almost caused an accident

Walter Townsend

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How much distance did you have the cruise control set for as far as tailing distance from the car ahead.

I generally leave mine set for maximum space, but them I'm out in the country and not dealing with bumper to bumper traffic. I remember when I lived in Vancouver area, if you left three car lengths between you and the car in front, you had four cars trying to squeeze into the space so always had to choke up.

Second, did you pass a speed sign?

I have had many times when I passed a 60 KM sign and the truck read it as 80 KM and started speeding up. The 2023 Powerboost would see a 100 KM sign and read it as 120 KM. Was a rush when I had just gone through a 80 KM zone, truck saw 120 KM and rocketed its way forward.

Third did you pass a side street. It is possible for the camera to pick up a speed sign that is either on an intersecting side street, either higher speed or slower, or even on a parallel street. Was driving in a 90 zone, truck saw a 50 KM sign on a side street that wyed off the main road and immediately applied braking to reduce speed to 50 KM. This was the first instance I had with the Adaptive Cruise control, fortunately there was no one following me, and I learned that from then on, to cover the gas pedal and apply gas if it tried to do an unwanted brake stand, or to hit the down speed on the steering wheel to avoid over speeding if it read a sign higher than the posted speed.

Reading through the truck manual the other day and all three of these were mentioned as possible actions that the cruise control could do.

I use the Adaptive Cruise control quite often, especially the follow at this distance from the preceding vehicle as that radar does a better job of keeping me exactly X distance behind than I can ever do. I have used it in slow construction zones and had it keep me paced right down to a stop, and speed back up again as traffic crawled through behind the pilot car, never once getting to close to the vehicle ahead. Yup, kept my brake pedal covered at all times, just in case, but truck came out like a champ.

Highly recommend reading the manual section on adaptive cruise control and all the disclaimers it contains about what could go wrong with the system and how the driver is ultimately responsible.

Reminds me of when cruise control first came out and was called auto pilot. Sales guy sold someone a RV that was fitted with auto pilot, the driver set the auto pilot, then went back to get a coffee and was miffed that he crashed his RV.
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HammaMan

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Keep in mind there's still another system that will steer you around an obstacle and from reading other's accounts of its operation, if you make any effort to stop for something you're likely going to hit and turn the wheel towards an open lane it will steer you around it. I've seen two accounts whereby the operators swore the vehicle self-steered around it. Two other functions is AEB and BA. Automatic emergency braking will do just that, despite having 'oh shit' moments, as well as the brake assist which will go full braking before AEB kicks in if you go for the brake pedal.

Kind of hard to test these systems without their car looking airbag things. If you've disabled any of the features well they won't work. The gas pedal cancels them FWIW. Not sure if cruise control gas pedal cancels them too, if so they need to address that.
 

Davexxxx

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How much distance did you have the cruise control set for as far as tailing distance from the car ahead.

I generally leave mine set for maximum space, but them I'm out in the country and not dealing with bumper to bumper traffic. I remember when I lived in Vancouver area, if you left three car lengths between you and the car in front, you had four cars trying to squeeze into the space so always had to choke up.

Second, did you pass a speed sign?

I have had many times when I passed a 60 KM sign and the truck read it as 80 KM and started speeding up. The 2023 Powerboost would see a 100 KM sign and read it as 120 KM. Was a rush when I had just gone through a 80 KM zone, truck saw 120 KM and rocketed its way forward.

Third did you pass a side street. It is possible for the camera to pick up a speed sign that is either on an intersecting side street, either higher speed or slower, or even on a parallel street. Was driving in a 90 zone, truck saw a 50 KM sign on a side street that wyed off the main road and immediately applied braking to reduce speed to 50 KM. This was the first instance I had with the Adaptive Cruise control, fortunately there was no one following me, and I learned that from then on, to cover the gas pedal and apply gas if it tried to do an unwanted brake stand, or to hit the down speed on the steering wheel to avoid over speeding if it read a sign higher than the posted speed.

Reading through the truck manual the other day and all three of these were mentioned as possible actions that the cruise control could do.

I use the Adaptive Cruise control quite often, especially the follow at this distance from the preceding vehicle as that radar does a better job of keeping me exactly X distance behind than I can ever do. I have used it in slow construction zones and had it keep me paced right down to a stop, and speed back up again as traffic crawled through behind the pilot car, never once getting to close to the vehicle ahead. Yup, kept my brake pedal covered at all times, just in case, but truck came out like a champ.

Highly recommend reading the manual section on adaptive cruise control and all the disclaimers it contains about what could go wrong with the system and how the driver is ultimately responsible.

Reminds me of when cruise control first came out and was called auto pilot. Sales guy sold someone a RV that was fitted with auto pilot, the driver set the auto pilot, then went back to get a coffee and was miffed that he crashed his RV.
I've had each of these things happen but I still find it very useful. Its not perfect but still damn good. I have mine set at the max distance too and for braking, it is fine but too slow off the line, so I just give it a little gas and then let it take back over.
 

Davexxxx

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Keep in mind there's still another system that will steer you around an obstacle and from reading other's accounts of its operation, if you make any effort to stop for something you're likely going to hit and turn the wheel towards an open lane it will steer you around it. I've seen two accounts whereby the operators swore the vehicle self-steered around it. Two other functions is AEB and BA. Automatic emergency braking will do just that, despite having 'oh shit' moments, as well as the brake assist which will go full braking before AEB kicks in if you go for the brake pedal.

Kind of hard to test these systems without their car looking airbag things. If you've disabled any of the features well they won't work. The gas pedal cancels them FWIW. Not sure if cruise control gas pedal cancels them too, if so they need to address that.
I had one of the accident avoidance things happen once and once over the original shock of the truck doing something I didn't tell it to do, I was grateful. It saw a piece of road debris before I did. It could have damaged the air damn but gave me enough heads up to safely navigate around it.

Love the truck and all the gadgetry.

So far :love:;)
 

Walter Townsend

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I've had each of these things happen but I still find it very useful. Its not perfect but still damn good. I have mine set at the max distance too and for braking, it is fine but too slow off the line, so I just give it a little gas and then let it take back over.
Yup, common complaint is that it takes too long to start accelerating off the line from a stop. Apply gas manually and the truck will take over as you start to move.
 

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Calson

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Opposite situation I think similar to what others mentioned happened to me month ago. Cruising highway speed a car is in right lane turning off and I'm in center lane but truck suddenly slows down very fast. Got confused I guess. Something I'll watch for in future.
My 2022 truck does this and so the truck brakes are suddenly applied and my speed drops by more than 20 mph. Fortunately I have not been rear-ended yet when this happens. Adaptive cruise control is a PITA and so I avoid using cruise control at all if there are other vehicles on the highway. No way to disable this "feature" on the 2022 truck.
 

Walter Townsend

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My 2022 truck does this and so the truck brakes are suddenly applied and my speed drops by more than 20 mph. Fortunately I have not been rear-ended yet when this happens. Adaptive cruise control is a PITA and so I avoid using cruise control at all if there are other vehicles on the highway. No way to disable this "feature" on the 2022 truck.
Only caught me off guard once, the first time it did it, since then my foot is hovering over the gas pedal and if I see a speed sign, I am ready to take corrective action and keep the truck going at speed before it can start the slow down process.

Most times this happens when the camera picks up a speed sign on a side road or a road that is parallel to the one you are on.

This is spelled out in the destruction manual for the trucks, in typical legaleese and lawyer speak!
 

fordtruckman2003

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My 2022 truck does this and so the truck brakes are suddenly applied and my speed drops by more than 20 mph. Fortunately I have not been rear-ended yet when this happens. Adaptive cruise control is a PITA and so I avoid using cruise control at all if there are other vehicles on the highway. No way to disable this "feature" on the 2022 truck.
I love the cruise control overall. It's basically Bluecruise that nags me about steering wheel occasionally. Usually in a curve when I have light hand on wheel letting truck handle it but hand in place if it does something dumb. That's really all I do just rest my hand on wheel and I'm mildly entertained by the truck half ass self driving. I had to let go of the resistance against the system and just let it do it's thing.

Just have to know the limitations like cars turning off the highway. I now know what the truck will do in that situation so I can avoid it. Smart cruise systems like this are no substitute for driving but they are useful.
 

fordtruckman2003

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Only caught me off guard once, the first time it did it, since then my foot is hovering over the gas pedal and if I see a speed sign, I am ready to take corrective action and keep the truck going at speed before it can start the slow down process.

Most times this happens when the camera picks up a speed sign on a side road or a road that is parallel to the one you are on.

This is spelled out in the destruction manual for the trucks, in typical legaleese and lawyer speak!
I keep speed adjustments by signage turned off and use the radar. If my only option was signs I'd keep it cranked up +7. I set that but didn't like it so turned off in favor of simple speed setting and radar will slow to follow traffic as needed.
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