8 speed won't engage when on an incline......

[kyleb8077]

This happened to me a couple times before and I dismissed it as a fluke. But this weekend, I was at the end of my driveway and tried to pull the truck up closer to the house and it wouldn't go in drive. The rotary shifter just flashed until i put it back in park. My driveway is not sloped hardly at all. Maybe a 5 degree incline towards the end.
After doing this a couple times, I put it in reverse, backed up into the street and then it let me put it in drive. Previously, it happened when I wedged ramps under the front tires to drive up when changing the oil or do some other maintenance.
It seems like it won't engage if it can't get a small amount of forward roll or something. Seems strange to me.
Any thoughts on what the issue could be?

 

[46RamMan]

Wish I could help...but I never have had that experience with my 2018 and I also have the rotary dial shifter.... Sounds strange to me..

 

[15limited]

Could be a wiring issue

 

[indept]

Did you try switching between 2wd, 4hi, &4low?

 

[Dhughes4301]

You have the driver door shut before you put it in gear?

 

[RamCares]

This happened to me a couple times before and I dismissed it as a fluke. But this weekend, I was at the end of my driveway and tried to pull the truck up closer to the house and it wouldn't go in drive. The rotary shifter just flashed until i put it back in park. My driveway is not sloped hardly at all. Maybe a 5 degree incline towards the end.
After doing this a couple times, I put it in reverse, backed up into the street and then it let me put it in drive. Previously, it happened when I wedged ramps under the front tires to drive up when changing the oil or do some other maintenance.
It seems like it won't engage if it can't get a small amount of forward roll or something. Seems strange to me.
Any thoughts on what the issue could be?

If you decide to take you vehicle in for service and you feel that additional assistance is needed, please feel free to send us a direct message.

Lamar
RAM Cares

 

[Badger 13]

Do you engage the parking brake prior to shifting into park ? Sounds like maybe a little too much pressure on the parking pawl, just a thought.

 

[desync0]

Never ran into that, but in the settings there's an option for hill start assist, did you turn it off by any chance?



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[bm02tj]

It is electrical or you are low on fluid

 

[kyleb8077]

You have the driver door shut before you put it in gear?

You may be on to something here. I think it may have been open every time it has happened. I don't typically shut the door when pulling up on ramps.

 

[kyleb8077]

Do you engage the parking brake prior to shifting into park ? Sounds like maybe a little too much pressure on the parking pawl, just a thought.

No. Like I said, my driveway is not sloped hardly at all. It hasn't happened but maybe 3 or 4 times in the 6 years ive had the truck.

 

[kyleb8077]

Never ran into that, but in the settings there's an option for hill start assist, did you turn it off by any chance?

I'll have to check on that. I can't imagine I did. That is not something I would mess with too much if at all.

 

[Dhughes4301]

You may be on to something here. I think it may have been open every time it has happened. I don't typically shut the door when pulling up on ramps.

yeah if the driver door isn’t shut, the safety programming throws the truck back into park..I hate that “feature”, especially when hooking a trailer

 

[gofishn]

it's the Pavel Chekov/Anton Yelchin, we don't want to get sued by killing another famous Actor, FCA, we know far better than you ******* Consmers, Safety Feature.
What killed him was the vehicle said it was in park but was not.

The feature is known as AutoPark.
Update for pre 2017 trucks and standard on 2017 and up.
Open the door with engine running, it goes into park. have door open, engine running, and try to put it in gear, teh selector will puke and flash P. it will not go out of park until door is closed.