This light illuminates if the ignition switch is placed in the ON position and goes off in approximately 3 seconds if the system is operating normally.
If the ABS warning light remains on, comes on while driving, or does not come on when the ignition switch is placed to the ON position, this indicates that there may be a malfunction with the ABS.
If this occurs, have your vehicle checked by an authorized HYUNDAI dealer as soon as possible. The normal braking system will still be operational, but without the assistance of the anti-lock brake system.
Hyundai Tucson (LM) 2010-2015 Service Manual: Immobilizer Control Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to the BD group - "Crash pad")
3.
Remove the steering column assembly.
(Refer to the ST group - "steering column & shaft")
4.
Disconnect the 5P connector of the SMARTRA unit an ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Basic Mode Screen
1. Mode Displays currently operating mode.
2. Operation State From Repeat/Random(Shuffle)/ Scan, displays the currently
operating function.
3. File Index Displays the current file number.
4. File Info Displays information about the current file.
5. Play/Pause Changes the play/pause state.
6 ...