Interior Door Lock Operation
With Door Lock Button:

- To unlock the door, push the door lock button (1) to the "Unlock" position. The red mark (2) on the door lock button will be visible.
- To lock the door, push the door lock button (1) to the "Locked" position. If the door is locked correctly, the red mark (2) on the door lock button will not be visible.
- To open the door, pull the door handle (3) outward.
- If the driver's (or front passenger's) inside door handle is pulled while the door lock button is in the locked position, the lock is released and the door opens.
- The front doors cannot be locked if the key is in the ignition switch and the front door is open.
- The doors cannot be locked if the electronic key is inside the vehicle and any door is open.
✽ NOTICE
If the power door lock does not operate when you are inside the vehicle, try one or more of the following methods to exit: Use the door unlock function several times (both electronic and manual) while pulling the door handle. Operate the other door locks and handles, front and rear. Lower the front window and use the mechanical key to unlock the door from outside.
With Central Door Lock Switch:

Press the front part (1) of the switch to lock all doors of the vehicle.
Press the rear part (2) of the switch to unlock all doors of the vehicle.
- If the key is in the ignition switch and any door is open, the doors will not lock even if the lock button (1) of the central door lock switch is pressed.
- If the smart key is in the vehicle and any door is open, the doors will not lock even if the lock button (1) of the central door lock switch is pressed.
WARNING
While the vehicle is being driven, the doors must always be fully closed and locked. If the doors are unlocked, the risk of being thrown from the vehicle in an accident increases.
WARNING
Never leave children or animals unattended in the vehicle. A closed vehicle can become extremely hot, which may result in death or serious injury to unattended children or animals who cannot leave the vehicle. Children may operate vehicle functions, which may injure them, or they may be exposed to other hazards, possibly including someone entering the vehicle.
WARNING
Always secure your vehicle.
Leaving your vehicle unlocked increases the potential risk to you or others from someone hiding in your vehicle. To secure your vehicle, depress the brake pedal, shift the shift lever to P (Park), apply the parking brake, and turn the ignition key to the LOCK/OFF position, close all windows, lock all doors, and always take the key with you.
WARNING
Opening a door when something is approaching may cause damage or injury. Be careful when opening doors and watch for vehicles, motorcycles, bicycles, or pedestrians approaching the vehicle from the direction of the door.
Test yourself
A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.