Hyundai Sonata: Restrictions in handling keys

Hyundai Sonata / Hyundai Sonata Owners Manual / Features of your vehicle / Keys / Restrictions in handling keys

When leaving keys with parking lot and valet attendants, the following procedures will ensure that your vehicle’s trunk and glove box compartment can only be opened with the master key.

Lock

When leaving the key with a parking lot attendant or valet, perform the following and leave the sub key with the attendant. The sub key can start the engine and operate door locks only.

Trunk

1. Open the trunk lid.
2. Set the trunk lid control switch to LOCK position ( ).
3. Close the trunk lid.

Lock release

Trunk

1. Open the trunk lid with the master key.
2. Set the trunk lid control switch to UNLOCK position ( ).
3. Close the trunk lid.

In this position the trunk will open with the trunk lid release button or transmitter. The trunk can never be opened with the sub key.

Glove box

Unlock the glove box using the mechanical key.

Key operations

(1) Master key (M) Used to start the engine, lock and unlock the doors, lock and unlock the glove box, and open the trunk. (2) Sub key (S) Used only to start the engine and lock and unlock the doo ...

Immobilizer system (if equipped)

Your vehicle is equipped with an electronic engine immobilizer system to reduce the risk of unauthorized vehicle use. Your immobilizer system is comprised of a small transponder in the ignition key ...