Phantom 4D

Just out of curiosity, did you have it in tow mode? I pull a 20' enclosed with my 2019 Sierra loaded with two Spyders (Can Am). I tried with and without tow mode and found that tow mode is the best way to go. Had tow mode on my 2017 Silverado and it was crap.

Mine is a GMC. 2019 Sierra.

I had a 2017 Silverado that had bad tranny issues. Traded it for a 2019 Sierra. Transmission is not as bad but still has issues. Like you said, clunking, hard downshift, delayed shift. All of the problems. Dealer said they changed the fluid. There's no difference in operation. My understanding before I bought the truck was that all of the transmissions had the new fluid or couldn't be sold. Some of the folks I know have the 10 speed and say there are no problems. I can't help on the engine side. Everyone has their own opinion. I guess it depends on what you will use the truck for too.

As a former service rep for a global company, pinched wires may not have any internal damage. I've seen it several times There are a few ways to verify that too. My question is how did they know a wire was pinched if it's in a covered harness?

Thanks for posting. Just had my truck in for service last week. I'll be calling them today to inquire about this.

The temp display on the DIC comes from the ambient air sensor, all it shows is the ambient temp as opposed to the inside (cabin) temp. P0096 is an intake air temperature (IAT) sensor fault. Either IAT1 or IAT2.

Well, took mine in for service this morning. After almost 4 hours (they were doing oil and filter and tire rotation too), The service advisor came and showed me a sensor from the front bumper. It had the smallest dent in it. Smaller than a pen tip. $400 bucks for the part. They would have to order it. Waiting for the final paperwork, he said parts had one but it was black, and would have to be painted. Huh? Anyway, I didn't have the money for a replacement at this time. Amazing how one tiny dent can take out a whole system. SMH

I have an appointment at the dealer next Tuesday. Hopefully I can keep this one. I talked to a service tech from a Chevy dealer and he said it just needs to be flashed. Don't know if that's true.

I did too. Most of the unsolicited mail I get goes into the round file.

The letter I got was from a lawyer, not from GM.

Not yet. Due to health issues and appointments, I've had to cancel my appointments with the dealer. I'm hoping to schedule it in this week.

Received a letter today from a lawyer about the suit re; transmission, lighting and a host of other issues on 2016-19 Sierra and probably Silverado, though it doesn't mention it. The letter goes on that we won't receive much comp from a class action suit. We all know that. He said he and his team are open to filing individual claims. No out of pocket expense even if they loose, they have the right to collect fees from GM. Anyone else get a letter??

Don't know if it will help. My Ford F-350 gasser service truck had similar issue. Went out one morning and it wouldn't start. Messed around under the hood, got it started. Later that afternoon on route to another job, it quit. Dropped it in neutral and pulled to the shoulder. Dealer couldn't fix it, sent it to a truck shop. Two weeks later, they found an intermittent short deep inside the main harness. Not warranted but it was a company owned truck. Keep us posted.

That's good news. Taking mine in next week.

Mine are clean. still have issues.

My bad. You mentioned Silverado, not Sierra.

My 2019 Sierra came with LED lights.

I haven't been able to get to the dealer. I talked a friend who is a Chevy tech and he said there is a problem in the module. So, as soon as I get time, I'm going to take it to the dealer.

Thanks. Just saw this. I talked to the service manager at the dealer where I bought the truck. Of course I got the standard answer " We haven't seen any issues with park assist. Your sensors are probably dirty. I told him I cleaned them and it still won't work. I'll have to take it in when I get time. The dealer is 3 hours round trip.

I know there have been some other topics on this. Here goes anyway. For the past two months, whenever I put the truck in drive I get the park assist blocked. When I start the truck the park assist button is lit. As soon as I put it in drive the light goes out and parks assist blocked shows. Here's the rub, yesterday the light stayed on and park assist worked fine. It was raining. Today, clear skies, the block message comes up. I have checked everything at least twice. Front and rear sensors are clean. No noticeable damage. All cameras work. So, why does it work in the rain and not on clear days? Anyone else having problems? I called and talked to the service manager at the dealer. Standard answer, we haven't seen this problem. Dealer is 3 hours round trip. Guess I have to make some time to take it in.

Wish I knew. I want to put some air horns on mine. Can't find enough room for the compressor or tank. And where to run the power from.

There is no single number for dealer or service complaints. You can call 1-800-462-8782. That's the customer assistance line. There's a chat line available too. Have to go to the GM main website and scroll down to contact us. They will ask if you talked with the service manager or dealer manager.

Where are you coming from? I live in Eastern NC. I travel I-40 a lot hauling a 20' enclosed V nose. Grossing around 7800 total. There are some big mountains on 40 in western NC and eastern NC. I-77 is fairly easy as is 52 in NC. Pilot Mountain aka Mount Pilot, is easy as well. Prepare for heavy traffic in Winston Salem.

Some dealers run "specials". Six quart with filter 59.95, eight quart with filter 69.95. I can't really say since my Sierra came with 5 free oil changes with rotation. I have one left. Some non dealer shops can be higher or lower. I take my wife's 2014 Impala to a local tire shop. Usually runs around $69 for oil change and filter. Tire rotation is $25. With tax, right at 100.

I haul a 20' enclosed V nose with two Spyder reverse trikes. Grossing right around 7k not counting passengers, luggage etc. If you add that in, probably around 7,500 total. 2019 Sierra SLT X31 with 5.3. Trailer tow package. No major issues with the truck. Longest round trip tow was probably 3000 miles. Some of that through the NC mountains. Only issue I have is gas mileage. But then, that's to be expected.