Jump to content

Recommended Posts

Posted
2 hours ago, Phantom 4D said:

Friend of mine had a 2020 Sierra. His tailgate would randomly drop. Caused some damage when it dropped while towing a trailer. He had it to the dealer several times, they couldn't duplicate and refused to fix the damage. He got so frustrated he now drives a Ram. Talked to him a few days ago. He's much happier.

 

Yea - they all have their problems... my cousin had brand new Platinum Ford with engine and tranny issues and went and bought a 2021 Ram that turns out to have the "Hemi tick"...

Posted
45 minutes ago, Sierra Jon said:

Yea - they all have their problems... my cousin had brand new Platinum Ford with engine and tranny issues and went and bought a 2021 Ram that turns out to have the "Hemi tick"...

Hemi tick is horrible, I test drove one, asked the sales guy wtf is that noise. He says it goes away when the engine warms up I was like are you serious. Now at camp grounds I pay close attention to those hemi's and they all sound like they have loose serp belts.... 

 

This tailgate issue is pretty weird, so far so good on my repairs fixing the issue....for now...

  • Like 1
Posted

Bought a 2021 GMC 2500HD AT4 at Central in Norwood about 4 months ago.  SAME issue is now happening with my tailgate.  Scary thing was I opened it with my trailer on and I heard a click and immediately reached to catch the inner tailgate before it smashed into my hitch.  Luckily I caught it but now I'm afraid to tow with it.  Super frustrating to have these issues on a truck with 1500 miles. 

  • Like 1
Posted

Yep. Talk to Bill Devine or Gabe. They were great. I had created a video just in case it was behaving when I dropped it off but it was doing the same thing for them....Not sure what the factory is doing during installs but clearly some process quality control gap going on. Bill threw the kitchen sink at it and so far so good.... 

  • Like 1
Posted
7 hours ago, Sierra Jon said:

Yea I disconnected it myself when it started happening so that it wouldn't damage itself. That's why i posted those pics above for anyone else having the issue. 

 

Bill isn't with Prime anymore. I spoke with the new service manager last time but I'll talk to him again about making this right. That's the most frustrating thing about this all... just make it right. Customer service is so dead (at least in MA). The dealership thinks that because this is a warranty issue that they don't have an obligation to make the customer happy. The free service is sufficient... well that's BS. $60k dollars later and no vehicle for 3 days... that inconvenience should be compensated.

Bill at Central not Prime.

  • Thanks 1
Posted

I am calling next week, thank you.  Such an annoying problem to have on a truck with such low miles. 

Posted

Well I joined the club of tailgate issue yesterday, with my 2021 Denali Black Diamond.   Mine was a bit more painful.  It opened on its own while parked in my garage.  Came hope and pressed the opener in my other car and the tailgate and the door fought it out.  Tailgate came out on the loosing end.  Deep scratches as well as a hole in the top edge.  I was able to get video of it doing it again yesterday.  Moved it last night and of course it stops.  At the dealer this morning and they look at me like I have lost my mind.  Nothing in the GM system showing such an issue, etc.  I gave them Bill's information and a link to this site.  Dropping it off next week for them to have to take a look.  Be interesting to see their response to the damages and who will pay for the repair.  Pretty sure I know.  

Posted
3 hours ago, M Huskey said:

Well I joined the club of tailgate issue yesterday, with my 2021 Denali Black Diamond.   Mine was a bit more painful.  It opened on its own while parked in my garage.  Came hope and pressed the opener in my other car and the tailgate and the door fought it out.  Tailgate came out on the loosing end.  Deep scratches as well as a hole in the top edge.  I was able to get video of it doing it again yesterday.  Moved it last night and of course it stops.  At the dealer this morning and they look at me like I have lost my mind.  Nothing in the GM system showing such an issue, etc.  I gave them Bill's information and a link to this site.  Dropping it off next week for them to have to take a look.  Be interesting to see their response to the damages and who will pay for the repair.  Pretty sure I know.  

I would of had the same issue and damage but my truck is parked outside in the driveway.  Mine was totally random at anytime in park with no regard to the key fob having to be near the truck.  

Posted

My 2021 Chevrolet 2500 High Country started doing the same thing a few weeks ago except I have the power up and down tailgate so it was trying to go up by itself as well. I took it to the local dealership and they said the switch looked like it was a corroded and ordered a replacement. They disconnected the existing switch and no issues since though my tailgate button doesn't work.

  • 4 weeks later...
Posted

Update - dropped it off at the dealer a couple of weeks ago.  Took the service manager out for a drive as the tailgate was now opening anytime you stopped the truck and turned it off.  On cue it did it twice during our short drive.  They took ownership of the issue and now I'm in the waiting on parts loop to get the tailgate repaired.  It was the tailgate switch as other have indicated.  So put RIVARD GMC in Tampa on the list of dealerships that have seen this problem.

  • Like 1
  • 3 weeks later...
Posted

So Prime "fixed" mine but I have to hit the button sometimes ten times before the thing opens. I usually use my key fob now. SMH.

Posted
13 minutes ago, Sierra Jon said:

So Prime "fixed" mine but I have to hit the button sometimes ten times before the thing opens. I usually use my key fob now. SMH.

Seems like a half ass fix. 

  • Like 1
  • 1 month later...
Posted

I have a 2021 3500 Denali diesel. My truck recently had the recall update for the radio/Bluetooth issues. When I received the truck back the inner tailgate started opening every time I opened any of the doors. Happened two weeks straight and now is intermittent. Currently at dealer trying to find a fix. Other issues were DEF tank replacement and a lot of electrical/infotainment glitches or items not working. Required shutting truck off for 5 minutes and restarting to get radio and Bluetooth to work again.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,911
    Total Members
    8,960
    Most Online
    jaszr2
    Newest Member
    jaszr2
    Joined
  • Who's Online   5 Members, 0 Anonymous, 460 Guests (See full list)


  • Latest Articles

  • Posts

    • No such thing as regenerative braking on a pure ICE vehicle.     Regenerative braking is the re-capture of energy from electric motors and stores it in the battery pack.  So hybrids, PHEV and EVs have regenerative braking.     What you are seeing is the charging system changing modes is all.  Its likely entering charge mode for some sort of reason is all.  All of the charging modes will be listed below.   As for L10 vs D.  L10 turns off automatic grade braking.  L10 puts you in control of grade downshifts where in D it will automatically do it based on brake pedal position and other factors.  Otherwise L10 and D drive exactly the same aside from that one aspect.    Battery Sulfation Mode The BCM will enter this mode when the interpreted Generator output voltage is less than 13.2 V for 45 minutes. When this condition exists the BCM will enter Charge Mode for 2–3 minutes. The BCM will then determine which mode to enter depending on voltage requirements.   Charge Mode The BCM will enter Charge Mode when ever one of the following conditions are met:   Windshield wipers are ON for more than 3 s. Climate Control Voltage Boost Mode Request is true, as sensed by the HVAC control module via serial data. High speed cooling fan, rear defogger, and HVAC high speed blower operation can cause the BCM to enter the Charge Mode. The estimated battery temperature is less than 0°C (32°F). Battery State of Charge is less than 80%. Vehicle speed is greater than 145 km/h (90 mph) A current sensor malfunction exists. System voltage is determined to be below 12.56 V When any one of these conditions is met, the system will set targeted generator output voltage to a charging voltage between 13.9–15.5 V, depending on the battery state of charge and estimated battery temperature.   Fuel Economy Mode The BCM will enter Fuel Economy Mode when the estimated battery temperature is at least 0°C (32°F) but less than or equal to 80°C (176°F), the calculated battery current is less than 15 A and greater than −8 A, and the battery state-of-charge is greater than or equal to 80%. Its targeted generator output voltage is the open circuit voltage of the battery and can be between 12.5–13.1 V. When fuel economy mode is active, the generator is not charging, only maintaining open circuit battery voltage. The BCM will exit this mode and enter Charge Mode when any of the conditions described above are present.   Headlamp Mode The BCM will enter Headlamp Mode when ever the head lamps are ON (high or low beams). Voltage will be regulated between 13.9–14.5 V.   Start Up Mode When the engine is started the BCM sets a targeted generator output voltage of 14.5 V for 30 s.   Tow/Haul Mode (if applicable) Pressing the Tow/Haul Mode button located on the center stack, the vehicle system voltage is raised and the remote (non-vehicle) battery will be charged. Having the headlamps on will raise the system voltage and if the Tow/Haul button is applied it will not serve any purpose. The voltage is regulated between 13.9-14.5 V.      
    • Hello from Australia Just sharing that there is now a way to delete the active shutters entirely with just a plug in module. Opens up tons of room to light bars etc.
    • I have an observation and a question... 1) I watch the voltage closely because I have had to dial in the cut-in/cut-out voltages of the battery separator to my camper.  The "smart" charging drives me nuts.  Anyway, I noticed that when coasting for a while, and especially if lightly using the brakes (though not necessary), the voltage goes up from mid/high-13 volts to mid/high-14 volts.  Then it drops back down after stopping or going again.  Consistently!   The only explanation I can come up with is REGENERATIVE BRAKING!  Well, maybe that's a little bit of an exaggeration, but it's certainly free extra battery charging.   2) Driving on mountain roads I will use L and vary the max gear.  Things straighten out and I end up in L10.  Sometimes I leave it there for a while.  Is there any difference between L10 and D?   
    • Do you think this width might affect the chalk test with a higher pressure closer to 65psi? I think lowering the pressure makes sense to get the tread to lay flatter
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...