2021 trailblazer RS Transmission
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This sounds like the commonly reported issue of people not letting the RPM's settle down before taking off. a lot of us have found that if shift into drive right after startup that it tends to jump because the RPM's are still high. but if you let it idle until its around 800 then you should be fine.
How are you out of warranty??? Lots of miles already?
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I have to let my RPMs drop or mine jerks, I never put it in gear right after I start it because it will literally fly.
Jennaparker12
I did turn on my car for 10 min and RPM should be dropped and then I reverse then drive and still jumps first time i start in morning, I don't know it could be the parking break or transmission, I had a 2009 cadillac cts before with the same problem at first was in morning then it became everytime I put on drive.🤷
I did turn on my car for 10 min and RPM should be dropped and then I reverse then drive and still jumps first time i start in morning, I don't know it could be the parking break or transmission, I had a 2009 cadillac cts before with the same problem at first was in morning then it became everytime I put on drive.🤷
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Dang… honestly my TB is funky as hell too. There’s times where it behaves really strangely. Like I think there’s been about 4 times where I started it and the RPMs jumped around and it felt like the car was gonna take a shit. It also makes squeaking noises when I turn off the car. Idles high with AC on. Honestly… im disappointed in Chevy. Probably will never buy again
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i would maybe have it looked at then. because I dont experience any of those issues that you have noted. I only get high RPM's (around 1200) when i first start it, then after 15-30 seconds they drop to around 800. and everything else is smooth sailing from there.
I think I found the problem for this issue I want to share with you so break system gives 2 code, the check engine light won't come on because I guess its not part of it, if you scan the break system it will show up, probably just needs software update.
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Nah the dealership doesn’t do anything. I tried to get them to look at some of them and they say “it’s normal” so once my warranty is up I’m trading it in.
Unfortunately, this doesn't sound like the same issue as others have reported on here. As far as I know, letting the RPMs "settle down" should work but that takes well less than a minute. If it's continuing to bother you, maybe try a different dealer. I think some people have had luck trying to escalate issues to GM or Chevy corporate, but your mileage may vary.
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