Mine does that occasionally almost feels like it downshifts then decides to up shift right before the truck stops and occasionally the rumble strip vibration as well
I can’t wait to find out the reasoning behind all the inconsistencies from truck to truck, but as the days go on I’m realizing I’m probably stuck with a piece of absolute shit transmission and truck
My opinion on what’s causing that is “slop” in the driveline, 3rd gens were notorious for that (some of them) the other theory is the transmissions is having some kind of delay to it and us trying to shift when the truck is stopped …. Idk I’m not an engineer but trying to use my common sense
Zero codes, currently 2600 miles, last dealer visit was October 15, only one dealer. Honestly I just don’t feel like dealing with dealerships, I’ll just drive it until it breaks or Toyota issues a fix . Dealers insult my intelligence
That isn’t the only issue with mine, it also is bad driving at low speeds, clunks, jerks, bangs, shudders and vibrates at low speeds, it’s so embarrassing I won’t let anyone drive in my truck. To answer your question everything was unicorns and rainbows until 500ish miles then all the problems...
See that’s the problem though. Failures aren’t necessarily related to hard shifts. Some trucks shift great and then randomly fail and get stuck in gear with zero prior symptoms, others like my truck shifted great for the first 500 miles and then developed all kind of weird issues, hard shifting...