Regenerative braking and winter driving.

[Mosey]

OP, when this happens, have you confirmed using the eco coach that you are within the Regen braking zone? I would think the ABS/TC system would mitigate this.

Sponsored

 

[ryanc111]

Truck only has 3500 km on it but I guess I can schedule the mechanics to look at it.
I found another post with someone having the same issue back in 2021, and messaged him and hopefully he responds.

its fine when the service brakes come into play as they can engage ABS, its the in-between regen mode where it get sketchy

I had the same issue once a couple of years ago but I was in 2WD and the regen cause the rear to start to come around. At the time I had a full cab with 5 people and I believe the bed was mostly unloaded. I've never experienced it when running in 4A normal or 4A Slippery though. I do have more weight in my bed these days with the RSI Smart Cap and Truck Vault drawer so I suspect weight balance is a significant contributor here.

The Hakkas are normally my go to winter tire as well, I'm a huge fan (although when the issue above happened I didn't have dedicated snows mounted, just 3 peak all seasons) - I'm willing to bet your issue goes away if you put a couple of bags of tube sand in the bed.

 

[PCfordguy]

After researching some different threads about the same issue, I wonder if some PB trucks have calibration issues with the regen. straight out of the factory? In other words the regen kicks in to aggressively when coming off the throttle? Who knows- thankfully I have not experienced this.

 

[jeffreybt]

thanks for all the replys, sounds like something is not right with my truck, I'll schedule an appointment with ford.

and yes I had regen display on to show the regen kicking in.

also my truck seems horrible without weight in the back, even before winter a pothole could sometimes send the rear bouncing in bit, felt way better with a quad or bike in the back.

 

[ryanc111]

After researching some different threads about the same issue, I wonder if some PB trucks have calibration issues with the regen. straight out of the factory? In other words the regen kicks in to aggressively when coming off the throttle? Who knows- thankfully I have not experienced this.

This is entirely possible. I have updated everything via FDRS twice since it first happened so perhaps changes there are also contributing to the fact I haven't experienced it again.

 

[FaaWrenchBndr]

thanks for all the replys, sounds like something is not right with my truck, I'll schedule an appointment with ford.

and yes I had regen display on to show the regen kicking in.

also my truck seems horrible without weight in the back, even before winter a pothole could sometimes send the rear bouncing in bit, felt way better with a quad or bike in the back.

Hey, I just took a look at mine regenerative breaking doesn’t kick in when I let off gas pedal. It doesn’t kick in until I engage the brake

 

[Calson]

My 2006 Prius has regenerative braking but it had no measureable impact on fuel economy. It is a marketing gimmick and the reality is that the way to increase fuel economy is to drive at slower speeds. The horsepower is used to overcome air drag and this drag increases exponentially. Go 70 and it is 4x greater than at 35.

 

[HammaMan]

Hey, I just took a look at mine regenerative breaking doesn’t kick in when I let off gas pedal. It doesn’t kick in until I engage the brake

Regen does begin off throttle but it's subtle.

 

[FaaWrenchBndr]

Regen does begin off throttle but it's subtle.

Yeah, that makes sense. The coach does show it charging as soon as the gas pedal is released.

 

[gnikdaor]

I’ve only driven on slippery roads a couple times so far this winter (unusual for around here, it has been a mostly dry but cold winter so far), and luckily I haven’t experienced what the OP or others have. I have the stock Pirellis and no real weight in the bed. I drove in both 2 wheel drive and four wheel drive. (4A, without being in slippery mode.) After reading this, the next time I’m driving on slick roads, I will be extra vigilant, hopefully this isn’t a widespread PB issue. But so far, it seems to not affect many owners of PB’s, or this forum would have more threads on this.

 

[SRMD]

23 PB XLT, so no 4A mode. I drive a lot in West Maryland mountains (hills for Colorado peeps). A lot of snow and ice here and plenty of roundabouts where I go. I also keep 350 pounds of sand in the bed behind the wheel wells. I run 3 peak all seasons (Cooper Road and Trail) and have not experienced this in any mode, 2wd or 4WD. I also had Goodyear Territory AT as factory rubber and did not experience this issue with those tires either. I agree with other post that it is likely your truck and something needs to be adjusted or recalibrated. For me and where I drive, sand in the back absolutely makes a difference. Plus, you have something to put down on icy roads to help with traction, if needed.

 

[CaptDave]

Hello all, I'm having some serious issue with my truck and winter driving and im wondering if anyone else is having the same issue with their powerboost and if they have found a solution.

My Truck: 2024 XLT power boost with Nokian Hakkapeliitta LT2 275/65 R20 winter tires and around 350lb of sandbags over the rear axel.

The issue is, on a slippery surface when there is a side force (From a slow round-about or a curve on the highway) if regenerative braking kicks in, the drag from the regen is enough to lock up the rear wheels in a turn. (basically acting like a jake brake) It's happened a few times around the city, but last night it happened on a bend in the highway and it almost got me killed (I was in 4x4 slippery mode).

I played around with all the modes and its worse in some more then others but I cant find a way to completely disable regenerative braking.

For now im going to put even more weight in the back and im going to take a huge hit and buy another set of winter tires with studs but id like another solution.

Thanks for any help.

Im coming from a Honda accord w/ the same tires (Nokian Hakka) and that thing was glued to the road compared to this truck.

We run Goodyear DuraTrac 270/65/20 with no issues

 

[DieselD]

We just had a freak snow storm here in coastal SC where I live and we have snow and ice everywhere. I have a '24 PB and tried the "slippery" drive mode and noticed it uses very little regen probably to prevent what you are talking about. Try it if you have that mode and if that doesn't work you probably have an issue with the truck. My regen was impossible to even notice so it never locked up the wheels and I was running around with an empty bed.

 

[jeffreybt]

We just had a freak snow storm here in coastal SC where I live and we have snow and ice everywhere. I have a '24 PB and tried the "slippery" drive mode and noticed it uses very little regen probably to prevent what you are talking about. Try it if you have that mode and if that doesn't work you probably have an issue with the truck. My regen was impossible to even notice so it never locked up the wheels and I was running around with an empty bed.

I'm going to be taking it in for service at some point, in the meantime I'm just not driving it.

My location makes going for service a rather large PITA so it might be a while.

 

[SonarChief]

We just had a freak snow storm here in coastal SC where I live and we have snow and ice everywhere. I have a '24 PB and tried the "slippery" drive mode and noticed it uses very little regen probably to prevent what you are talking about. Try it if you have that mode and if that doesn't work you probably have an issue with the truck. My regen was impossible to even notice so it never locked up the wheels and I was running around with an empty bed.

I did the same experiment up here in CT with both slippery and normal. In normal I could feel the back start moving sideways, but with slippery mode it stopped straight and steady.

Sponsored