Cold Tranny Abrupt Downshift to 1st

[Scallywags]

Hey guys, just got this car last week so still learning her quirks and it’s CPO so I have powertrain warranty. Curious opinions on this issue.

When car is cold and I’m coasting at low speed, like to a stop sign or end of a parking row, the down shift to 1st is really abrupt. The first few times it happened it coincided with me braking and I thought they were just touchy/grabby brakes that I wasn’t used to yet. The way the downshift goes it definitely feels like I just stabbed the brakes but my foot isn’t even on the brake pedal. Cold car, low speed, coasting to a stop, bang it drops hard into 1st and jerks everyone in the car

When I downshift manually using paddles the shift is fine. Anyone ever heard of this?

 

[Chi-Guy]

Harsh downshift is a very common issue with our cars, some have had success with a TCM reset while others have claim that it didn't help. But you'll need a professional scan tool to perform the reset or have the dealer do it. As long as its not doing it when it's warm then its normal.