My truck isn't a daily driver, so sometimes it can sit for a couple days or more. I have noticed that if it sits for a few days, start the engine, and shift to reverse there is a delay before the truck moves. It shifts into reverse, but if I blip the gas, it doesn't move for up to 5 seconds - as if the torque converter isn't pressurizing. Is that normal, or a sign of an issue to be concerned about?
Sitting 24 hours or less doesn't seem to be a problem, but several days and it is noticable.

 

I wouldn't say thats normal, but out of curiosity, do you start it and just dump it into reverse? Or do you wait 10 or more seconds after starting the truck before shifting. I ask as it may be some protective measure where it delays the gearshift until engine RPMs fall a bit.

Does it do it going into drive?

Sounds like a valve body or pump issue.

 

I don't shift it any differently after 1 minute of sitting or 1 week. I just know after longer periods of time it does this. Absolutely no other issues. I don't know about drive because I'm backing it out of the garage. When I shift to reverse the truck creeps very slowly and if I blip the gas, the revs come up but the truck doesn't move any faster. I wait a few seconds and then the truck responds to throttle input.

 

I guess I will never experience it, I always let the idle drop when starting food.

 

Yep. Old habit for some of us. Start truck, seatbelt, adjust HVAC, turn on tunes and check mirrors.

But, I have started the truck to back it up a few feet, and never had the same symptoms as the OP.

 

I had a 2016 Platinum and after sitting several days it took at least 15 seconds after starting for reverse to engage with exactly the symptoms you described. It did that when it had 12 miles on it, and when I traded it in last year it had about 77,000 miles and it was no better or no worse than on day 1! I brought it to the dealer and they "couldn't replicate the problem".

I've not got a 2020 Limited and it does the same exact thing, only the 15 seconds is down to about 10 seconds.

Like others have mentioned, I've developed the habit of letting it idle for a few moments before shifting to reverse.

 

I have not noticed that delay, but 'normal' and '10 speed' is an oxymoron. I also have developed a habit of start, idle for very short time, then go. I feel it's best to make sure oil is circulating prior to putting load on engine.

 

I suspect this is a software issue and not mechanical.

 

Then why the difference from 12 hours vs 48 hours?
Unless there is a capicitor in the system losing its juice over a few days, I doubt it is software or electrical.

 

Mine does the same thing and I have had other vehicles that have done this as well. The longer it sits, the longer it takes to start moving. If it were a software issue I am fairly certain it wouldn't allow the engine to increase RPM (which it does) while trying to get it to move. I always thought it was the torque converter leaking down a bit as it sits and it just takes a few seconds for the pump to refill the converter and build up enough pressure to operate correctly.