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    21 Sierra SLT - X31

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milkmaster's Achievements


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  1. My 2021 does the same type of problem. It does it especially when it is very cold outside. The truck starts off in first gear and then nose dives for a split second when it tries to shift into 2nd gear. It only does it the first shift of the morning and then it is fine. Warmer temperatures outside eliminate the problem. Mine is a 5.3 w/8 speed transmission. Right now it has 7500 miles. Did this all winter when the mornings were very cold. I met another fellow who has the exact same truck as me, and he described the same situation. Otherwise the truck has been flawless.
  2. Weathertech floor liners front and back and a console tray were the first two things I bought. Since I have added a Undercover Flex tonneau for the back. Then I bouhgt and cut a 2X8 piece of lumber correctly to use as a load blocker in the bed slots. My GMC is an SLT so it came with most everything else I usually buy. So far no problems.
  3. Dealt with SiriusXM for a few years. You can do everything you need to do on your account online EXCEPT cancel. I got tired of going through the hassle to be on the phone trying to communicate in broken english haggling every few months for a better deal. If they would just leave it alone I would have stayed with the subscription. I did find out if I asked, they would transfer me to someone stateside to speak with about my subscription. Finally... My advice is to NEVER give them your credit card. You will have a hard time when you decide to cancel. At least I did. I finally had to cancel my credit card and get another to stop the charges. You can do it by a mailed invoice if you pay $2 I think it is. But then they don't send you a new invoice until after your time has expired and it is for the higher rate. Just more trouble than it's worth. Just my opinions
  4. Every time my headlights turn on I must manually push the button to turn on the fog lights. Is there a setting somewhere to make them come on automatically with my headlights? I looked in the menus, but didn't find anything. My F150 had a setting where they would come on anytime the headlights were being used unless I turned them off. I have yet to find that setting on my new 2021 GMC. Am I missing something? BTW... Merry Christmas!
  5. UPDATE.... Couple of days ago I went into the menu and turned off and back on again the controls to make the seats heat up after autostart with the fob. This evening was the first cold temps outside to see if it works. The steering wheel is warrm to the touch as it has been. The seats aren't hot when you get in the truck, but neither were they cold as I would have expected. Maybe cycling the menu fixed it! I'll know more after the temps get a little colder in the coming days.
  6. WHen mine is in AUTO, only the air conditioner light is on otherwise. Switching any other setting turns the AUTO function off. The only thing I can change in AUTo is the temperature setting so far that I have noticed. Good Luck!
  7. Getting within 1000 miles of my first free service by GM that is supposed to be an oil change, tire rotation, and multi-point inspection. I already received the reminder from GM about it. I found this truck and purchased it out of my hometown. Do I have the option of my first free service from GM at my local dealership instead?
  8. YEP! MY 2021 Sierra 4k miles does it! It started with the colder weather. I normally back about 100 feet out of my driveway into the street. It's a downhill slope so no throttle needed. Then I shift to drive and pull away. The truck initially shifts to drive and will lurch a bit first. Then it is like it hits neutral for a split second and then engages again. All is good after that for the rest of the day. I did try to start the truck a little earlier before leaving to see if just warming it up would help. That didn't make any difference. Other than that one thing that just started, no problems at all with my new Sierra. Now that I read of others doing I may not worry as much. Seems to be common among these trucks.
  9. I admit to taking a little while to make it work including watching a youtube video. Mine works as long as I have the HD icon on the screen active. I looked up the local radio stations that have HD so I could test it. I tune to an HD station and wait a few seconds. Then an HD separate little icon will come up on the top left of the touchscreen. Touch that icon and then it will indicate how many alternative channels exist. Then you have to use the tuning arrows to go to the other choices. Simply turning the right hand knob will NOT work. Took me a little time to get used to it and not get run over at the same time. You should know that some HD channels will show alternates even though they are not being used. You can select them, but nothing may be broadcasting. Maybe this will help. I wondered if mine had HD radio as well being a chip shortage truck. It does have it if you have the HD icon in your menu and on the radio screen. Good luck!
  10. Mine did the same until I turned it on in settings. The radio screen icon now goes to active when it is in HD. It didn't do that before when I thought it should. That's why I started looking in the settings menu. Maybe yours is different.
  11. mine built in June is the chip shortage truck too. I also have the HD radio , but I found it in settings where I had to turn it on.
  12. Alright! Give me the skinny on this. My 2021 GMC Sierra 1500 manual says PF63E for an oil filter. I have looked online and see it some places while others cross it with just a PF63. Some opinions say it is the same even, while others say the oil pressure bypass is a different pressure. I am sure this has been beaten up before, but not as much as I would have expected. Some places online I see the crossover to PF63 is a shorter filter. Does the "E" stand for extended length or something? First GM truck I have had in years. What am I missing or need to know?
  13. Anyone using the oil sampling service from Blackstone Labs? Thinking of ordering a kit and sending an oil sample for examination. I would rather get a sample through my dipstick tube, but I have yet to find anything that will work for that. Any ideas? If so, send me a link.
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