New Issue When Downshifting from 2nd to 1st Gear (Automatic). - Toyota Nation Forum : Toyota Car and Truck Forums

imEric! · 04-03-2008, 08:26 PM

Well today was bright and sunny and decided to take my new toy out for a spin. As of now, it has 334km on it. I've an auto XRS and here's one issue I noticed today.

So whenever I tried to slowdown the car (between the speed of 20km/h and about 10km/h) I noticed an ABRUPT change of gear from 2nd to 1st. It's kinda rough and I could definitely feel it. I don't know how else to describe the issue...

So this afternoon I took my car to the dealer and told them about it and the technician told me to drive it a bit more.

What do you guys think? It doesn't happen very often nor is it rough every time when the engine down shifts from 2nd to 1st gear.

.Eric

ZenithTheTV · 04-03-2008, 09:40 PM

You mean when its in D and you're slowing to 20kph, it shifts down?

imEric! · 04-03-2008, 10:11 PM

Yep, in D mode and whenever the car is slowing down from 20kph, the engine makes an abrupt shift...

However, I never had any issue when the car accelerates.

.Eric

Jeff Lange · 04-03-2008, 11:14 PM

Drive it for a while to let the ECU learn, it should take care of some of the issues you're having, if not, definitely take it back to the dealer to be checked out.

Corolla Chris · 04-04-2008, 06:56 PM

I have an automatic LE. I've put about 830 miles on it in a month... I've never had or noticed any problems with it when it downshifts from 2nd to 1st gear.

Impelled · 04-04-2008, 08:41 PM

I know their entirely different vehicles but......My 07 Tundra downshifts very noticably when coming to a stop or slowing down. It's not hard but it isn't real subtle either, very noticable, it may be a Toyota thing. Keep an eye on it.

imEric! · 04-04-2008, 08:53 PM

The abrupt downshifting does worry me...Well I'm gonna drive some more and see if it goes away. I hope there's not a need to replace my gear box?!?!

.Eric

cwayne · 04-06-2008, 07:44 PM

It could be how they program the car when you're slowing down. When I'm driving down hill on a freeway in an auto Celica, when no gas applied the car changes automatically from 4th to 3rd gear to do "engine braking".

imEric! · 04-06-2008, 08:24 PM

Hmm, I drove a little more today and the downshifting from 2nd to 1st isn't as noticeable as before...It's definitely getting better, I hope!!

.Eric

imEric! · 04-19-2008, 03:11 PM

So now my car has about 1150km and the car still jerks when downshifting from 2nd to 1st gear.

I brought my car to the dealer and they reset the shifting point for me...I then drove for another 100km and the problem seems to be gone...

Weird...

.Eric

imEric! · 04-24-2008, 08:45 PM

Guess what, the problem has come back. I once again brought my car back to the dealer and they have contacted Toyota Canada for some possible solutions...

It's just getting annoying!

.Eric

Impelled · 04-24-2008, 08:48 PM

Rut-Ro.....hate issues w/ new cars!

rolla-XRS · 04-24-2008, 10:29 PM

Rut-row is right. I just ordered my new Blue Streak Mica XRS today. Whatever the problem, Toyota will make it right so eagerly looking forward to taking delivery of it.

nikolasmor · 04-24-2008, 10:44 PM

Congrats. I ordered my wife the same

Mullet · 04-27-2008, 08:44 PM

Quote:

Originally Posted by imEric!

Guess what, the problem has come back. I once again brought my car back to the dealer and they have contacted Toyota Canada for some possible solutions...

It's just getting annoying!

.Eric

Do you change your driving style a lot. If so, try sticking to one constant style, otherwise the computer will be confused whenever you change. Basically, the adaptive strategy sets shift points that fit your driving style, but it needs some time to learn. If you change how you drive, it will need some time to adapt and adjust the shift points so it can shift smooth again.
-Mullet