2023 F150 Tremor. 3200 miles.

My driveway has a slight incline. Nothing overly steep. Pulling into the driveway I took my foot off the gas and the truck started rolling backwards in DRIVE. I applied the brake and took my foot off the brake and the truck held its position for about 2 seconds and started to roll backwards again.

I tested this scenario in my Chevy Tahoe and with the Tahoe in Drive and my foot off the break it holds its position on the incline. It does not roll backwards.

Is this normal F150 transmission behavior? The truck is brand new. I have to assume this is normal.

 

Mine does the same thing. Same scenario.

 

In vehicles, you could adjust the breaking to automatic breaking, and it won’t roll back
=Greeco;7722899]2023 F150 Tremor. 3200 miles.
In vehicles, you can adjust automatic breaking in vehicles you can adjust the automatic braking which works well and it will roll back.. It works well.
My driveway has a slight incline. Nothing overly steep. Pulling into the driveway I took my foot off the gas and the truck started rolling backwards in DRIVE. I applied the brake and took my foot off the brake and the truck held its position for about 2 seconds and started to roll backwards again.

I tested this scenario in my Chevy Tahoe and with the Tahoe in Drive and my foot off the break it holds its position on the incline. It does not roll backwards.

Is this normal F150 transmission behavior? The truck is brand new. I have to assume this is normal.[/QUOTE]

 

Turn on auto hold

 

I turned on Auto Hold and it does hold the truck in place while in drive on an incline ONLY after I tap the brake and then take my foot off the brake. If I pull into my driveway and take my foot off the gas, the truck starts to roll backwards even with Auto Hold ON. If tap the brake, Auto Hold does its job.

I don’t make it a habit of taking my foot off the gas on an incline but I find it odd that the truck rolls backward. I just tested this again with the Tahoe and the thing doesn’t move an inch in drive with my foot off the gas and off the brake.

Still getting used to the new truck, I guess.

 

Welcome to the forum. I also have a slight incline on my drive. every once in a while, when I pull in and stop it will automatically turn on my e-brake. Not a big deal I just turn off the e-brake then.

 

You may find two different actions.
1. If approaching an incline with brake Lightly applied to slow to a stop, the Brake should hold until you accelerate away. You told the ABS to do so with the conditions.
2. While at an incline and do not follow the above, yes the Brake will hold about 10 seconds or so then let off.
A difference in how the ABS handles two different conditions.
Biggest difference is in #1 the wheels are turning as you come to a stop.
In #2 you already stopped. No wheel speed signal when at rest.
Good luck.

 

Check your transmission fluid level. It isn’t super easy to do. You have to loosen the bolt cover over the tiny plastic dipstick on the transmission pan right beside the hot catalytic converter, and it has to be while the transmission is hot (205 deg +). Get a pizza oven mitt so you don’t singe your arm. Tip: loosen and re-snug while engine is cold so you get it loosened from when they overtightened it from factory and you can practice manipulating the wrench in there without 3rd degree burn danger. It takes ULV transmission fluid. On a non powerboost, when at temp, it should be down near tip of dipstick at the 5-6 mark. Powerboost transmission it is at the 3-4 level on same dipstick. Many transmissions are under serviced by 1 quart or more from the factory and I’d suspect almost no dealer checks it during the purchase inspection because it is so ridiculous to do per the above notes. It may not fix your problem but it’ll prevent more transmission problems down the road, especially since you aren’t supposed to change the fluid until 150,000 miles per Ford under normal driving conditions.

 

BRAKES and BRAKING for God's sake...not 'breaks'....

 

Unless it breaks, then there is no braking!
Autos rolling back on an incline is normal, has been for eons. Lots of reasons why some may do it and others not. I doubt it's fluid level related but both my truck and Mustang were low from the dealer new so I also advocate checking your fluid levels. Good guide above but good luck getting it to 205 degrees, I abused the heck out of the Mustang trying to get it that hot and give up, it was 2 quarts low and the truck was 1 low according to dealer that topped them off. Was told trans fluid level is no longer on the "pre delivery" checklist!