Jump to content

Silverado Transmission Software Update?

cato

By cato
in Troubleshooting & Recalls

Recommended Posts

cato Enthusiast

cato

Posted
Posted

Anybody know if they've come out with a software update for the 1500 series transmission yet? My tranny shifting around town sucks half the time. Almost like the tranny doesn't know which gear to shift into. Only notice it in gears 1 thru 3. Mostly hesitations/pauses when accelerating after braking like at yeilds etc. Not all the time but often enough to be a PITA.

 

Thanks

Newell33 Enthusiast

Newell33

Posted
Posted

Unfortunately, no. An aftermarket tune will take care of the issues if warranty is not a concern. I still can't believe they designed the software so poorly, but that's the way it is on these trucks. Some will say their transmission "learned," and got better. At 16,000 miles, mine is still the same as day one.

f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted

Besides the clunking with low speed driving the confused shifting is a huge problem to me. Been like this from day one , as I knew that it will learn was all bs. 10k and my shit shifts and bucks back and forth like a damn horse.

Don't matte at this point , I have my arbitration case next week with bbb and gm. 15 service visits in 11 months means it's time for all my money back.

waverider Enthusiast

waverider

Posted
Posted

This transmission thing really bugs the crap out of me. 7500 miles now and the trans shifts as bad as the day I bought it. The trans shifting is so bad that I really don't like driving the truck at all. I'm trying to like this truck, but this is the sticking point. I drive my wife's 2015 Toyota Highlander, and wonder the whole time why Chevrolet can't build a truck that shifts like this!!!

Steve1199 Enthusiast

Steve1199

Posted
Posted

for the last week or so, i've basically just been driving in M5, and only using the gear + to go to 6M when i'm at higher speeds.

 

leaving it in M5, the transmission has been shifting a little smoother, less clunks, and seems somewhat better behaved. basically, i'm locking out V4 mode, so, taking that tranisition out of the equation for confusing the truck when is slower speed stop/go/crawl traffic and around town.

 

just a bit annoying that i have to run my truck this way to make up for piss poor transmission and engine tuning.... 20K miles in less than 1 year of ownership, and i've already looked at its current trade in value on the NADA......

f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted

Agree ^^^^ I also highly doubt it's any hardware but rather the way the computer was tuned. The 2 service dealers I took it to found it to be completely normal which blows my mind.

Ron.s Enthusiast

Ron.s

Posted
Posted

Doubtful that GM will be doing anything to the six speeds, 8's trending and 10 speed soon.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      Getting greedy...   The AC pump has been replaced at least once per service records, and it's been recharged twice since 2018 or so, in approximately 2 year intervals between those charges.   It was done at the same shop...clearly they were enjoying the revenue of recharging the system periodically versus actually tracking down and fixing the leak. I learned that the owner was 88 years old when she passed in 2023, so maybe they assumed only a temporary fix was needed anyway.   The system is basically empty now, the compressor spins freely, so I'm guessing it "just needs a recharge".   I vacuumed it down, and it has basically held overnight. Doesn't appear to leak under vacuum, check! So it must leak under pressure. I don't have a way to pressurize the system and pressurizing it with shop air wouldn't be great for the air dryer (which is probably toast anyway?)   The dryer (accumulator? I'm not an AC expert) has a Schrader valve, but the high side has an old ball-type valve, which are notorious for leaking. It's clearly had schmutz blown out of it at one point because the line/area next to the valve is coated old black crud, which I assume is AC refrigerant residue/oil, or maybe even dirty dye. I think I'll roll the dice and replace the valves. I have a black light around here somewhere so I'll find it and shine it around the engine bay in the dark to see if there's any dye.   I can't think of another way to track down the leak other than injecting some dye (if it doesn't have any) and having it charged up. We can't buy R134a off the shelf here anymore, so I'll run it up to Jiffy Lube and have them do it. I think I have a coupon. At the very least, the charge should last long enough for a year or two, according to history. I think this truck will be long gone by then. But cold AC is a selling point.    
    • clowe1243
      6.2L L87 Powertrain Engine Noise (Lifter Failure) Question

      By clowe1243 · Posted

      Got the truck back today.  Called them yesterday to get an update, and miraculously my truck is finished?!?! The $13k out the door was complete bullshit!  Ended up being over $14k.  They added some bullshit service bulletin that I cant even find, where they replaced my radiator without telling me or asking me, and charging me for it.  Need to do more research into it, cause they leaked the first delivered radiator was ran over by FedEX.  Sounds like bullshit to me. 2.5 Months for an engine swap, which ended up being remanufactured, not new; ****ing ridiculous.  Brakes are squishy as hell, not sure if its from sitting.  Will give a couple days to see it that figures it self out.  GAVE IT BACK TO ME WITH 1 GALLON OF GAS!  Just filled the tank the day before drop off, more bullshit.  My dash cam SD card was formatted, not really much I can do about that. 3 year, 100k GM warranty at least.  Time to sell it and say **** off to GM.  Bad experience.  Cant wait for the survey email to come through.  Overpriced Raptor R, here I come!
    • haoleboyZ71
      Radio Update

      By haoleboyZ71 · Posted

      If I forget the phone in the truck, and forget the truck in the phone, and reconnect.  It works great for the day.  Truck sits overnight, and the next day is a no go.  It will connect Android Auto via usb cable, but not bluetooth.   Ive tried Everything in this thread so far, and nothing works for more than a day.   I think I might have to go to the dealer and have them flash the pcm.   thanks for all the suggestions guys. 👍
    • Bill Lemmond
      primary drive belt tensioner

      By Bill Lemmond · Posted

      2022 2500HD Crew Z71 Duramax single alternator.  Recently had the primary (water pump / fan) belt tensioner pulley bearing to fail while hundreds of miles from home of course the plastic pulley melted and belt shredded which took out some wiring. Found a replacement tensioner assembly and belt to continue now would like to find a replacement for just the pulley and bearing to have a spare assembly in case of a repeat, the rest of the tensioner is fine. Has anybody here found a correct replacement part for just the pulley and bearing? Any help is appreciated.
    • Atlas
      Upgrade to a 2026 AT4 with the 3.0L Duramax

      By Atlas · Posted

      +1 for the 3.0   Perfect for 1500 pickup towing duties.   Perfect engine for a 1500 pickup period. Huge torque at stunningly low RPM makes it feel a lot lighter than it is. The fuel mileage is insane for a tall and heavy 1500... 30+ on the highway. Mid 20's around town.   It's probably not perfect if you bought a 6.2 for the braaaaaaapppppp V8 noises and wrapping it out to 6k. The LZ0 acts and sounds like a small turbo diesel and there's nothing you can do to make a small turbo diesel sound like a big one, and you can't make an inline diesel sound like a V8 diesel/big Duramax. It's a different driving experience altogether.   Drive one, I think you'll like it, though...

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...