Hyundai Sonata: Remote Key / Mechanical key

If the remote key does not operate normally, you can lock or unlock the door by using the mechanical key.

Press the release button then the key will unfold automatically.

To fold the key, fold the key manually while pressing the release button.

Remote Key
Your HYUNDAI uses a remote key, which you can use to lock or unlock a door (and trunk) and even start the engine. 1. Door Lock 2. Door Unlock 3. Trunk Open 4. Panic Locking To lock : 1. Close all do ...

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

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Purge Control Solenoid Valve (PCSV) Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the PCSV connector. 3. Measure resistance between the PCSV terminals 1 and 2. 4. Check that the resistance is within the specification. Specification: Refer to “Specification” Removal 1. Turn the ignition switc ...

Hyundai Sonata LF 2014-2019 Service Manual: Fuel Tank Air Filter Repair procedures
Replacement 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Lift the vehicle. 3. Remove the rear-left wheel & tire and house cover. 4. Disconnect the canister close valve connector (A). 5. Disconnect the vapor hose (B). 6. Remove instal ...

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