AFM/DFM Disabler & Auto Start/Stop Eliminator for 2005-2024 and Select 2025 GM Trucks, SUVs & Cars

I does exactly what it is supposed to do. It was easy to set up. I installed it on a 2022 silverado ltz with a10 speed transmission 5.3 liter motor. It runs smoother than it ever has. The transmission is smoother too. I guess the truck is not fighting itself to figure out what gear it needs for how many cylinders it is using. I had to learn how to drive it again, it has so much power. The stop and go is locked out. You have ability to turn both features on and off in the app. the stop/go and and the fuel management. I emailed customer service with some questions, about the lights and battery drain. They where very prompt and curious, with their help. They assured me it shuts off after a short time of not running. It is Quality product, not a quirky piece of junk. The bad news: Gas milage dropped by 3 mpg around town and 2mpg on the interstate. My mileage gage, looks like a scoreboard counting down at a ball game, it counts down so quick at a drive through. Just a wild guess, but you could burn a 1/4 of a gallon of gas waiting on a Big Mac. Or so it seems. I pulled my 9000 pound camper and got about the same as always 9 mpg. I love the way the truck runs, but I am not sure I can afford it. My neighbor is a mechanic and he said, I can pay a little at a time now or plan on paying a lot for motor repairs/replacement in the near future. He paid a lot more than I did, to get his older chevy reprogrammed to lock out fuel management. I am keeping it. I need the truck to last.

This is the best disabler you can get for the GMC refresh model, 2022.5 to 2026 6.2L v8 models. This disables both the DFM system and disables auto/stop. The app is easy to use and it has a very small footprint compared to other disablers on the market. Customer service is excellent, I emailed customer support and they got back to me within hours. This is an important tip. If your truck comes with a tracking system from the dealership like mine did, when that comes on randomly it will override the disabler and the auto stop will suddenly stop the engine at a red light. If you look behind the OBD port you will see a splitter that is plugged in to the device. I unplugged mine and now the carbyte never gets turned off from the GPS tracker. My truck came with this prescription free for 1 year but I don’t need it because the GMC app does pretty much the same thing for free. If you are on the fence about this buy it, you will not be disappointed.

I have a 2024 GMC Sierra with a 6.2. This works flawlessly, turns off stop/star and keeps the engine in 8 cylinder mode. I can tell the difference in the way the truck runs, seems to be more responsive without a big change in gas milage. It's a plug and play devise, and has an app you can use to track your engine.

So AFM/DFM doesn't actually get disabled until after you reach 40mph! I was working with support and this is a hard limit that cannot be changed. As most people drive around town especially when starting out daily, and don't have streets that are over 40mph untill you hit a highway or county/state road... The device doesn't actually kick in when you need it! How needs aAFM/DFM disabled when you are on a highway??? It is quite ashame as the device and UI are pretty impressive but the sheer illogical 40mph limit means HARD PASS

Easy to use and did exactly what I needed easy to connect

Very pleased. No more “auto stop” or “DFM”. Doubles as a code reader too which was a pleasant surprise. Plugs right in and works immediately. Works great recommend! I had to take a star away for 3 reasons: 1: connection to the app (not necessary) was a little bit ambiguous. My email to support was responded to within an hour, very good. 2: Either the “auto stop” and “dfm” are both on or both off. You get the impression by advertising that you can control them individually, but you cannot. 3: the device is blinking and active even when vehicle is parked and shut off. This has me concerned about parasitic draw. Overall still very happy that both of theses annoying features (auto stop and dfm) have been shut down.

Was was very skeptical about using this I’ve tried other ones but they did not work but when I found this one, I tried it out and it’s been working great since it’s been about a week and it’s worked great I have it on my 2023 Chevrolet Silverado 1500 WT with a 5.3 motor with a 10 speed transmission the truck sounds better runs better shifts better and feels a lot more responsive and my truck stay in V8 mode and idels 1 million times better Update 3/17/24- Couple month update Works great, there is time were it doesn’t work but if you just unplug it and replug it in it works great again I will say I definitely recommend unplugging your battery and letting your system reset so you get the most out of it but you don’t have to do that, my first time I just plugged it in and waited about eight minutes and it worked. Also if you plan on putting a cold air intake on the truck and upgraded throttlebody. I definitely recommend getting this because it fixes the idel issue where it tries idle really low without tuning the truck and losing warranty. I’d recommend this if you don’t plan on tuning the truck any time soon or doing anything crazy other then a intake

Also is a scan tool!

جهاز غير فعال للاسف ولازم تشغله من التطبيق كل ما ركبت السياره 👎🏻

Work great and easy to install

So far works as described.

this product was suppose to fit in my year truck,clearly stated this in the pictures of the product,after i received it and plugged it in it says not compatible with vehicle and now the seller wont respond to any emails and i have no way of contacting them,so im out $250 .Do not buy this product unless your willing to lose ur money

Arrived in good time and seems to work well!