
Your HYUNDAI uses a remote key, which you can use to lock or unlock a door (and tailgate) and even start the engine.
1. Door Lock
2. Door Unlock
3. Panic
Locking
To lock :
1. Close all doors, engine hood and tailgate.
2. Press the Door Lock button (1) on the remote key.
3. The hazard warning lights will blink and the chime will sound once if the lock button is pressed once more within four seconds.
4. Make sure the doors are locked by checking the position of the door lock button inside the vehicle.
WARNING
Do not leave the keys in your vehicle with unsupervised children. Unattended children could place the key in the ignition switch and may operate power windows or other controls, or even make the vehicle move, which could result in serious injury or death.
Unlocking
To unlock:
1. Press the Door Unlock button (2) on the remote key.
3. The driver’s door will unlock. The hazard warning lights will blink two times.
✽ NOTICE
Unlock mode conversion (two stage unlock mode ↔central door unlock mode)
The unlock mode changes alternately by pressing the lock button and unlock button on the remote key at the same time for 4 seconds or more. The hazard warning lights will blink four times to indicate that the mode conversion is completed.
Panic button
Press the Panic button (4) for more than one second. The horn sounds and hazard warning lights flash for about 30 seconds.
To cancel the panic mode, press any button on the remote key.
CAUTION
To prevent damaging the remote key:
Mechanical key

If the remote key does not operate normally, you can lock or unlock the door by using the mechanical key.
Remote key precautionsHyundai Tucson (LM) 2010-2015 Service Manual: Interior Body Repair
Interior A
Interior B
Interior C
Interior D
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Hyundai Tucson (LM) 2010-2015 Service Manual: Brake Booster Repair procedures
Brake Booster Operating Test
For simple checking of the brake booster operation, carry out the following tests.
1.
Run the engine for one or two minutes, and then stop it. If
the pedal depresses fully the first time but gradually becomes higher
when depressed succeeding times, the booster ...