Hyundai Sonata: Smart key - Features of your vehicleHyundai Sonata: Smart key

With a smart key, you can lock or unlock a door (and trunk) and even start the

With a smart key, you can lock or unlock a door (and trunk) and even start the engine without inserting the key.

The functions of buttons on a smart key are similar to the remote keyless entry. (Refer to the “Remote keyless entry” in this section.)

Immobilizer system
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 ...

Smart key functions
Carrying the smart key, you may lock and unlock the vehicle doors. Also, you may start the engine. Refer to the following, for more details. Locking Using the door handle switch Pressing ...

See also:

Smart key precautions
✽ NOTICE If, for some reason, you happen to lose your smart key, you will not be able to start the engine. Tow the vehicle, if necessary, and contact an authorized HYUNDAI dealer. A ...

Start/Stop Button. Repair procedures
Removal 1. Disconnect the negative(-) battery terminal. 2. Remove the crash pad lower panel. (Refer to the BD group - "Crash pad&q ...

Transmitter precautions
✽ NOTICE The transmitter will not work if any of following occur: The ignition key is in ignition switch. You exceed the operating distance limit (about 90 feet [30 m]). The battery in ...