Vigilante375

I've always wondered why there isn't a handle like all other trucks have. But sadly, no. There isn't a easy manual release without putting the tailgate down and pulling off the back off the tailgate to get to the inner workings to manually release it.

Get your money back and go find something else.

Try this # 18002221020 It anything, they can direct you to the correct department.

Yes, mine does this and so does my ZL1 plus the rental's I drive from time to time for work. Something that newer vehicles have been doing. It'll be hot or cold or whatever the outside temp is.

FYI, you can go to Autozone or Advanved Auto and they will scan and clear your codes for free.

Did you have to jump start it? Only asking since you mentioned a dead battery then no volume and CarPlay. You have any mods? I read some people say the dealer found that the heated seat was causing a very slight parasitic draw but only found that out after the dealer kept the vehicle over the weekend and hooked up hardware to monitor the electrical system.

Yes, we understand what you're saying. It would be better to try and recreate the scenario again but see if it happens with tow/haul mode and without. As I stated, if the vehicle has tow/haul mode then why not use it? To get better MPGs? Then you shouldn't be towing anything. MPG's is the last thing on my mind when I tow. The dealer isn't going to be much help if you cannot prove to them that the vehicle is doing something strange. If they can't find any strange codes and with GM saying "this is how our transmission's work", you're probably better off going to something else. You can find lots of topics about the 8 speed issue on here but 99% will be those not towing anything. I have no issues towing my ZL1 and you didn't have any issues until this 1 time and it could only be a 1 time thing. Only thing that I would really recommend, would be for you to get the fluid flushed and filled back up then try this scenario again. I've heard Amsoil has worked well in the transmission.

I noticed you don't have the truck in tow mode. I suggest using it at all times when towing, they have that feature for a reason. I towed my ZL1 to and from racing events and the rpms hold steady. If you have that tow mode feature, I suggest using it when towing. I use it a often when driving without a trailer on the intestate since it'll make the blinker blink 6 times when you slightly press the turn signal.

Starting at 9 seconds. This is almost what I saw on a commercial. Same scene but missing the work place being powered on.

Why would Chevy advertise it being able to work with certain power tools or power up a whole house when it can't? I just saw a commercial showing the Silverado being able to. Total crap.

Look at getting some bilstein 5100s. I put some on the rear (easy 10 minute job you can do in the driveway) and it was a night and day difference! There is a very long thread and the bilstein 5100s in the modv section. Give it a look. The cheap ass Rancho shocks suck and I don't know why Chevy uses such a total crap on and off road suspension component.

Well if it wasn't happening before you hardwired something in. Then whatever you did caused the issue.

I was very disappointed in this outlet too. Just another gimmick to get people to look at the truck. I've had multiple instances that I could have really used the outlet but it wouldn't power on the device I was trying to use for more than 1 second. FWIW, if anyone wants something that CAN power household appliances and charge electric vehicles. Go get an F150 with the 7500W inverter in the back. It's a $750 option. Can't beat that. I wish Chevy did something like this and maybe they will in the near future.

I'm certain this has been talked about on here in different threads over the years. My 2019 Silverado does the same thing. It's not concern to me ask my dealer offers a lifetime drivetrain warranty (only stipulation is to bring it to them for every oil change and every scheduled service). Either way, I believe the main resolution was to take it to the dealer and have them flush the entire trans with the "new" fluid that they are to be using. If I were you, I'd video tape the truck doing this and show it to them if they don't believe you.

From what I recall, the voltage changing is normal. GM designed it to change based on the voltage needs. I think it's been around for a decade or more now.