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9th Gen Drivetrain Transmissions, Clutches and Axles.

Thread: 2015 with 22k miles transmission problem? Reply to Thread
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  Topic Review (Newest First)
02-11-2018 07:00 AM
Jeepster09 My opinion is that to get the good gas mileage the computer is always looking for optium gear, therefore it shifts a lot. I don't think you will get rid of this, it is normal. If it only had 2 or 3 speeds it wouldn't shift as much OR GET AS GOOD OF GAS MILEAGE.
02-09-2018 07:55 PM
plano-doug
Quote:
Originally Posted by bright93 View Post
I had a 2012 impala before with the same setup and never experienced a problem with it. I went to the dealer yesterday and bought a 2015 with 54,000 miles on it. I was on my way home and noticed a shuddering when going up hills and a slight hesitation in changing gears. The car is back at the dealer now and they are apparently replacing the transmission. Is this common, or did I just buy a lemon?
My take is, when it's covered under warranty, the dealers tend to swap transmissions rather than repair them. So it might have been something relatively simple, such as a problem with control of the lock up torque converter. They probably could have repaired it, but by swapping it out with a factory re-man unit that's been tested, they have higher confidence in the repair.

Doug

.
02-09-2018 03:44 PM
bright93
2015 Impala LT2 54,000 miles

I had a 2012 impala before with the same setup and never experienced a problem with it. I went to the dealer yesterday and bought a 2015 with 54,000 miles on it. I was on my way home and noticed a shuddering when going up hills and a slight hesitation in changing gears. The car is back at the dealer now and they are apparently replacing the transmission. Is this common, or did I just buy a lemon?
12-21-2017 08:20 AM
dyaz14 I'm having the same issue with my 2015 ltz.
What can be done?If i go to the Dealer I can see
them not finding a code for the issue and going through
many return visits.Cant they just admit theres a problem
and take care of it?
08-26-2017 12:56 PM
nionzeiss
Quote:
Originally Posted by juleshaw2077 View Post
Tranny shifts like this becuase it is an old man car lmfao, 7th gen impalas shifted nicer. IF you dont like bogging down around town, or before the on ramp. PULL your shifter all the way down and use manual mode, thats why it is there lmfao. Its a lot easier on the engine/tranny when your shifting (unless your racing lol), than it is to have the torque converter bog down, and not know when to shift. Just my 2cents. MANUAL MODE is also much safer in the city, dont gotta WOT every time you pull out somewheres.


Good advice.


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07-29-2016 09:51 AM
juleshaw2077 Tranny shifts like this becuase it is an old man car lmfao, 7th gen impalas shifted nicer. IF you dont like bogging down around town, or before the on ramp. PULL your shifter all the way down and use manual mode, thats why it is there lmfao. Its a lot easier on the engine/tranny when your shifting (unless your racing lol), than it is to have the torque converter bog down, and not know when to shift. Just my 2cents. MANUAL MODE is also much safer in the city, dont gotta WOT every time you pull out somewheres.
07-11-2016 04:04 PM
DandS2LTZ
Quote:
Originally Posted by ICUBB View Post
I have the Trifecta tune and it significantly improves up-shifting but still get ALOT of poorly executed downshifts.

Same here. Huge improvement in shifting, but still get the "confused" shudder. Too many options I guess, I can't imagine driving one of the other optional 8 and 9 speed automatics out there...
06-25-2016 08:40 AM
baabootoo My 2015 2LTZ has 34K on it, and nothing has changed. Its been to the dealer many times, and the feeling is that it does that to get the good mileage ratings. It upshifts waaaaaay too early, and the converter locks up way too early also; kind of like shifting a manual trans car early, and lugging the engine. The Trifecta tune did make a world of difference.
05-17-2016 12:27 PM
1999 White C5 Coupe
Quote:
Originally Posted by Bubba133385 View Post
I have a 2015 LT2 with right around 22k miles. I was wondering if there are any known issues with the transmissions in these cars, or if what I am experiencing is possibly normal.

When accelerating slowly there seems to be a slight hesitation/ shuddering. This problem is very intermittent and most of the time barley noticeable.

The other thing that happens pretty consistently is that when slowing down and shifting from second to first(right around 27-30mph), the transmission seems to shift hard. Hard enough that sometimes it almost feels as though some one lightly bumps me.

No check engine lights or error codes that I know of.

Again just wondering if anyone else has experienced either of these occurrences, or if because I just bought the car I am being overly analytical.

How have you resolved your complaint?
05-16-2016 09:20 PM
fordolet Back in the days of 2 speed power glide transmissions it didn't have so many gears to pick from. Our 2014 2LTZ sometimes has trouble picking which gear it likes best while driving about 25 - 35 mph. Driving faster or slower fixes that or else use the manual shifter. Our Impala has always had that slight shuddering while accelerating moderately onto the highway when leaving home. I think it is normal. We have 41,000 miles on it now. We just returned from a 875 mile trip to D.C. and then back home. It got 33.2 mpg going east and 30.2 mpg going back west. The wind was out of the west.
We have had no trouble with the car and are very pleased with it.
Patrick
05-11-2016 10:13 PM
commodus192 I have a 2014 model with the 4 cyl - the bigger of the two. I have the same issue with the weird shifting. Noticed it the day I test drove it. The car is such a 10 in the looks department and other odd and ends but that transmission really drives me nuts sometimes. Especially at lower speeds in traffic - constantly up and downshifting, making the car hesitate and shudder a bit. My 04 Impala with 220,000 miles shifts smoother.
05-11-2016 08:16 AM
jonjonbear Wow cool, thanks for the links. I had no idea you could tune these cars. I put a tune on my 2005 Mustang GT and it made a world of difference. Hell I would do it just for a better shift response. I hate spongy transmissions. Not that I want the Impala to bark the tires when it shifts but a little kick would be nice!
05-11-2016 07:54 AM
ICUBB Read more about it here:

TRIFECTA - 2014+ Chevrolet Impala - 3.6L - Advantage

https://www.impalaforums.com/9th-gen-...-tune-kit.html
05-11-2016 03:36 AM
jonjonbear
Quote:
Originally Posted by ICUBB View Post
I have the Trifecta tune and it significantly improves up-shifting but still get ALOT of poorly executed downshifts.
What is a Trifecta tune?
05-10-2016 09:27 PM
ICUBB
Quote:
Originally Posted by jonjonbear View Post
I have a 2016 Impala LTZ2, the transmission is the worse shifting transmission I have ever had in a car. I call it a mushbox. Always seems like it doesn't really know what it wants to do next. So far that's about the only thing I don't like about it. Just turned over 2200 miles. I would love to see a tune to firm up the shifts.
I have the Trifecta tune and it significantly improves up-shifting but still get ALOT of poorly executed downshifts.
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