Autel IM508 2021 GMC Terrain Smart Key Programming Guide

Have 2021 GMC Terrain, I’m going to be programming an all-new smart key for this vehicle with Autel IM508 key programmer and smart keys

I’m going to taking the IM508 back into the system through OBD, it should be really quick really easy, let’s get it.

Next, swipe left and select the “Settings” menu, and connect to Wifi.

Return to the main menu and choose “IMMO” and confirm the Usage Authorization.

Search for and/or select “GM”, then “System Selection”, then “GMC”.

Next, press “Read Immobilizer Password” and “… (CAN) AUTO (SMART)” and “Password Reading”.

Please confirm your WiFi Connection and proceed.

When completed, take note of the code (saved in system until disconnect) and return to “System Selection” Menu.

Choose “Keyless System” then “Keyless System (CAN)” and “Add Smart Key”.

Enter earlier Pin Code or touch the drop menu to find it and select “OK” and confirm.

Select “More Functions”, “Connection Mode” and “Wifi Connection”.

Follow onscreen instructions to power on vehicle and begin security system unlock. Wait 12 minutes to continue…

Once completed, note “Ready for remote#) message. Follow on screen instructions to finish adding remote.

When prompted, press “Start/Stop” button once, then see if remote number has increased to confirm addition.

Select “Yes” to add more remotes, or “No” to exit, then test the remote.

To exit, press the start stop button with and without the brake depressed according to instructions on screen.

Turn ignition off, open and close driver door, then press unlock & lock buttons to sync remote.

Test all buttons and functions, finish and exit if successfully, or try again until successfully.

Alright, Autel IM508 key programmer did a great job!