flattop

I had asked the tech when I scheduled the appointment about adding the 40 amp fuse like the old days, he said he did not know and they need to see the truck! He acted like this has never happened before and was not a common failure?

Hello, my 3 month old Sierra Elevation wont recognize a trailer with electric brakes? All the lights work correctly, but no power to the brakes? This is the factory installed brake controller. If you manually push the knob, the display shows the power % but does not light up like my 2022 silverado. I have an appointment with the dealer, but was checking to see if anyone else has seen this issue. Thanks,

Just traded my 2022 Silverado for a 2026 GMC Sierra 1500. I put my spare rims (winter tires) on the new GMC yesterday and went to re-sync the TPMS sensors, but no go? Using the same sync tool I have used since 2022, there is no response from the GMC when in learning mode? Apparently GM has changed the truck so that the 2022 sensors no longer work? I did try the sync tool on my 2022 cadillac and it still works perfect. Looks like I need (4) new 2026 compatible sensors.

Hello all, My 2022 silverado 4X4 crew cab with NHT (Max Tow) out of the blue last month threw a check engine light. The truck has 110k and had basically been trouble free besides the A/C compressor that extended warranty covered at 99k. Anyways the check engine light came on around 1/1/26 and these were the codes, U01B0,U0623,U0632,U0633 and U1345. A reset only gave me about 80 miles and they all returned. So before I really started to dig in to this issue, the radiator plastic end cap decided to crack about 3" on the drivers side a few inches from the top! Crazy, a 4.5 year old radiator goes bad! So this problem takes precedence and I find a NHT radiator, not easy, but get it ordered and begin the disassembly process. New Radiator was 3 business days out, so i did some research on those codes. One of them referenced communications with battery module and one was talking about the radiator shutters and electric fans. So as I was looking in front of where the radiator goes I see a connector that would be right where the shutter drive motor would go. The NHT trucks have the shutter system deleted from the factory, but they left this 3 conductor female connector, open to the elements, no safety block off plug. Well it was loaded with green corrosion and road salt residue. The Hot Rodder in me wanted to just cut off the connector and tape them up, but I got a pick and with wd-40 cleaned all the residue and put some dielectric grease on them. Re installed radiator and began putting miles on the truck and to my surprise the check engine codes have all disappeared! As of today the truck is at 112k with no issues. Something to look for if you get this set of codes. Flattop

Hi Folks, I recently did front brake pads and rotors on my 2022 Silverado 1500 4X4 (75K miles) and as suggested I disconnected the negative battery terminal. It was disconnected for about 4 hours and when I reconnected all appeared good. Brakes work great, but when I paired the phone it only stays connected until the truck shuts off. Then on a restart it says no phone connected. What could possibly be causing the phone not to be permanently paired? My phone still works and stays connected to my other 2022 and 2024 gm vehicles. Thanks in advance

66,000 on my 2022 LTD Silverado 5.3, Mobil 1 every 5000 miles. Had trans flush at dealer at 60,000. Engine uses about a half quart every 3500 miles, but other than that no issues!

The 3.0 diesels offer 3:72 gears with the Max Tow package, so those should be available for your trail boss? You probably have the standard 3:23's currently and those with taller/heavy tires probably are not to snappy. Tuning the 3:73's is something that has to be addressed to accommodate the transmission and other rpm based functions of the ECU. Not sure if anyone has accomplished this yet?

I have tested this old style 20" rim (2017 Silverado) on my new 2022LTD. No clearance problems on front or rear. They will need the newer 433MHz TPMS sensors to sync with the newer trucks. These were the "chrome finish" rims that lasted until 2 days after the 3yr 36k bumper to bumper warranty and then flaked off. Found a local powder coating company who did these for me. $125/wheel sandblast and powder coat. Flattop

I have a 2022 Silverado LTD RST 4X4 with the 5.3 and the 8 speed. Its by far the best shifting automatic transmission I have ever owned. And I have owned about 13 new GM trucks in the last 25 years.(All automatics) I have 20,000 on it now and have Zero problems with anything on this truck. It has the Max Tow package that includes the 3:42 gears. This thing rips through the gears and has a lot of get up and go for a heavy truck. Driving on the NYS Thruway, driving conservatively, it gets 20mpg!!

11000 miles on my 2022 LTD Silverado 5.3 and not a single problem yet! I am changing the oil w/ mobil 1 every 5k, not going by OLM. My Last 2017 silverado went by OLM with mobil 1 and had a lifter failure at 92,000 miles. It was one of the standard lifters, not one of the AFM lifters.

I love the mirrors, but this is my second NHT/max tow truck, so i am used to them. My 2017Silverado had the older version towing mirrors and max tow package. When hauling the camper they are a necessity.

yes according to the build sheet it has DFM. It has been very transparent so far.

Hi Folks, I picked up this 2022 LTD ( limited, I guess the last of the 2021 parts) RST 1500 on November 4th. It was a truck I ordered in August. 5.3, 8 speed 4X4. Crew Cab Short box. I was told it would be a 2021 with no DFM, but this is what arrived at the dealer. After the test drive, I was hooked. I did get the dealer to throw in a 5 year 120k powertrain warranty to calm my fears of the dreaded DFM and all of its issues. Well I am happy to report that this thing is Awesome!! I had many reservations on this model, with all the 8 speed issues, rear window leaks & of course the DFM lifter issues. I have about 2200 miles on the truck to date and its been flawless! It has the NHT package (MaxTow) and with the 3:42 gears the thing really runs great. The 8 speed is very crisp, shifts thru the first 5 gears up in the 3000-3400 range and really makes this thing fun to drive! Fit and finish is very good, getting around 16.5 mpg average with our terrible NY winter blend fuel. One thing I miss from my 2017 silverado is the text notification/display. Flattop

They look like American Racing rims, but try looking @ tirerack.com and go to the rim section and you may find a match. Load your specific truck/color and it will display the rims you select on the truck to give you a good visual.