Hyundai Sonata: Key operations - Keys - Features of your vehicle - Hyundai Sonata Owners ManualHyundai Sonata: 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 door.

WARNING - Ignition key

Leaving children unattended in a vehicle with the ignition key is dangerous even if the key is not in the ignition switch. Children copy adults and they could place the key in the ignition switch. The ignition key would enable children to operate power windows or other controls, or even make the vehicle move, which could result in serious bodily injury or even death. Never leave the keys in your vehicle with unsupervised children.

WARNING

Use only HYUNDAI original parts for the ignition key in your vehicle. If an aftermarket key is used, the ignition switch may not return to ON after START. If this happens, the starter will continue to operate causing damage to the starter motor and possible fire due to OYF049001N excessive current in the wiring.

    Record your key number
    The key code number is stamped on the bar code tag attached to the key set. Should you lose your keys, this number will enable an authorized HYUNDAI dealer to duplicate the keys easily. Remove the ...

    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 W ...

    See also:

    Wipers and washers
    A : Wiper speed control · MIST – Single wipe · OFF – Off · INT – Intermittent wipe · LO – Low wiper speed · HI – High wiper speed B : Intermittent or Auto control wipe time adju ...

    Ending a call
    To finish the call, perform one of the following procedures: ● Select the “Hang up” key on the “Call in Progress” display. ● Push the switch on the steering wheel. ...

    Replacement Keys
    NOTE: Only keys that have been programmed to the vehicle electronics can be used to start the vehicle. Once a Sentry Key has been programmed to a vehicle, it cannot be programmed to any other v ...