Connect IM608
Go to Select USA->Chevrolet->Manual selection->USA-> Trailblazer-> 2020-2022->Smart Key->Control Unit->Read Immobilizer password ->Password reading
Read pin code succeed
Go to Keyless System (CAN)->Add smart key
Press Start/Stop button once
Place the smart key to be learned into the key slot and take other keys out of the vehicle.
IM608 will ask you to enter 4-digit PIN to access
Configuring system
Press Start/Stop button once
Configuring system
Switch ignition off
Press Start/Stop button for 12s
Release Start/Stop button
Long press Start/Stop button to turn on the ignition switch until the instrument light turns on
(if not turn on, release the START/STOP button and repeat it)
Switch ignition off
Depress and hold the brake padel.
Press Start/Stop button to start engine.
Switch ignition off
Stop the engine.
Open and close the driver door.
Remove the smart key, press LOCK and Unlock button at the same time and release both.
Programming completed.