
The driver’s and front passenger’s seats are equipped with adjustable headrests for the passengers safety and comfort.

Adjusting the height up and down
To raise the headrest:
1. Pull it up to the desired position (1).
To lower the headrest:
1. Push and hold the release button (2) on the headrest support.
2. Lower the headrest to the desired position (3).

Removal/Reinstall
To remove the headrest:
1. Recline the seatback (2) with the recline lever or switch (1).
2. Raise headrest as far as it can go.
3. Press the headrest release button (3) while pulling the headrest up (4).
WARNING
NEVER allow anyone to ride in a seat with the headrest removed.

To reinstall the headrest :
1. Put the headrest poles (2) into the holes while pressing the release button (1).
2. Recline the seatback (4) with the recline lever or switch (3).
3. Adjust the headrest to the appropriate height.
WARNING
Always make sure the headrest locks into position after reinstalling and adjusting it properly.

Active headrest
The active headrest is designed to move forward and upward during a rear impact. This helps prevent the driver's and front passenger’s heads from moving backward which helps minimize neck injuries.
WARNING
A gap between the seat and the headrest release button may appear when sitting on the seat or when you push or pull the seat. Be careful not to get your finger, etc. caught in the gap.
Headrest
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Opening the hood
1. Park the vehicle and set the parking brake.
2. Pull the release lever located under the lower left corner of the dashboard
to unlatch the hood. The hood should pop up slightly.
3. Raise the hood slightly, pull the secondary latch (1) inside of the hood center
until i ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Purge Control Solenoid Valve (PCSV) Description and Operation
Description
Purge Control Solenoid Valve (PCSV) is installed on the surge
tank and controls the passage between the canister and the intake
manifold. It is a solenoid valve and is open when the ECM grounds the
valve control line. When the passage is open (PCSV ON), fuel vapor
stored in th ...