This warning light indicates a malfunction of either the generator or electrical charging system.
If the warning light comes on while the vehicle is in motion:
1. Drive to the nearest safe location.
2. With the engine off, check the generator drive belt for looseness or breakage.
3. If the belt is adjusted properly, a problem exists somewhere in the electrical charging system. Have an authorized HYUNDAI dealer correct the problem as soon as possible.
Hyundai Tucson (LM) 2010-2015 Service Manual: Repair procedures
On-vehicle Inpection
•
First of all, check for DTCs. If a DTC is present, perform
troubleshooting in accordance with the procedure for that DTC. (Refer to
DTC guide)
•
Check that the battery cables are connected to the correct termina ...
Hyundai Tucson (LM) 2010-2015 Service Manual: DBC Switch Repair procedures
Inspection
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the crash pad side switch assembly.
(Refer to Body - "Crash Pad")
3.
Check the continuity between the switch terminals as the DBC switch is engaged. ...