Autel MaxiIM IM608 IMMO GM Chevrolet Hummer update 2021 smart key

Yesterday I updated Autel MaxiIM IM608 IMMO-GM / Chevrolet, Hummer.


Adds the following CANFD models:

Yukon 2021 smart key

Sierra 2010 smart key

Escalade 2021 smart key

Tahoe 2021 smart key

Silverado 2021 smart key

Suburban 2021 smart key

Question: Any extra dongle needed?

it’s gm CANFD so you will need an Autel GM FN adapter .


  1. Original Autel Brand Tool
  2. Support Can FD Protocol
  3. Work with IM608, MS906, MS906BT, 808 series, cannot work with AP200 nor Maxiflash PRO.
  4. Vehicles Supported: Designed to support diagnosis of vehicle models with CAN FD protocol, including the MY2020 GM models.

Scott Ford Experience on the difference among Autel IM608, Key Tool Plus and OBDSTAR X300 DP Plus:

obdstar has GM FN adapter too, obdstar has been able to do 2021 GM for a little while now.

I’m about to pull the trigger on their obdstaf x300 dp plus , it has some coverage the autel doesn’t, it can do some Volvo without having to take apart the cem. I was reading up on the tool and it is actually pretty good and cloning GM bcm’s and ecm’s, so that would be nice to have, especially since we are starting to get a lot more used modules since this chip shortage, and looks to only get worse too.

I got im608 I bought key tool plus when it came out, which I do like. and I’m looking at a odometer tool, I might as well spend a little more and get the x300 dp plus as it gives another solid key tool, and the cloning part has me very intrigued, lol plus it has the same odometer software as the odometer.

the im608 is great all around coverage.

the key tool plus is good on euro, especially when autel has server issues, and I do a lot of flip key upgrades so it does what I want it too.

now the obdstar is good at us vehicle coverage,

so the obstar x300 dp plus would fit in nicely with the other tools I have.