The vehicle’s front and rear seats have adjustable headrests.The headrests provide comfort for passengers, but more importantly they are designed to help protect passengers from whiplash and other neck and spinal injuries during an accident, especially in a rear impact collision.
WARNING
To reduce the risk of serious injury or death in an accident, take the following precautions when adjusting your headrests:

CAUTION
To prevent damage, NEVER hit or pull on the headrests.
Armrest
Front seat headrestHyundai Tucson (LM) 2010-2015 Service Manual: Cross Member Body Repair
Front Cross Member
* These dimensions indicated in this figure are actual-measurement dimensions. [ Unit : mm (inch) ]
Rear Cross Member
* These dimensions indicated in this figure are actual-measurement dimensions. [ Unit : mm (inch) ]
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Hyundai Tucson (LM) 2010-2015 Owners Manual: AWD LOCK indicator (if equipped)
The AWD LOCK indicator light is illuminated when the AWD LOCK button is pushed.
The purpose of this AWD LOCK mode is to increase the drive power when driving on
wet pavement, snow-covered roads and/or off-road.The AWD LOCK indicator light is
turned off by pushing the button again.
CAUTION
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