The indicator illuminates when the parking (position) lights or headlights are ON.
Hyundai Tucson (LM) 2010-2015 Service Manual: Front Hub / Knuckle / Tone Wheel Repair procedures
Removal
1.
Remove the front wheel and tire (A) from front hub .
Tightening torque:
88.2 ~ 107.8 N.m (9.0 ~ 11.0 kgf.m, 65.0 ~ 79.5 lb-ft)
Be careful not to damage to the hub bolts when removing the front wheel and tire (A).
2.
Remove the brake caliper mounting ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: 30,000 miles (48,000 km) or 24 months
Rotating tires
Inspect vacuum hose
Inspect air conditioning refrigerant
Inspect brake hoses and lines
Inspect drive shafts and boots
Inspect exhaust pipe and muffler
Inspect front brake disc/pads, calipers
Inspect propeller shaft (AWD)
Inspect rear brake disc/pads
Inspect steeri ...