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:

    Engine Compartment Fuse Block
    To remove the fuse block cover, press the three retaining clips on the cover and lift it straight up. Notice: Spilling liquid on any electrical component on the vehicle may damage it. Always keep t ...

    Regulatory Information
    FCC Regulatory information – CAUTION: To maintain compliance with FCC’s RF exposure guidelines, use only the supplied antenna. Unauthorized antenna, modification, or attachments could damage ...

    Curve Tips
    • Take curves at a reasonable speed. • Reduce speed before entering a curve. • Maintain a reasonable steady speed through the curve. • Wait until the vehicle is out of the curve bef ...