Hyundai Tucson: Smart key / Loss of a smart key

A maximum of two smart keys can be registered to a single vehicle. If you happen to lose your smart key, you should immediately take the vehicle and remaining key to your authorized HYUNDAI dealer or tow the vehicle, if necessary.

Mechanical key
If the Smart Key does not operate normally, you can lock or unlock the door by using the mechanical key. Press and hold the release button (1) and remove the mechanical key (2). Insert the me ...

Smart key precautions
The smart key will not work if any of the following occur: The smart key is close to a radio transmitter such as a radio station or an airport which can interfere with normal operation of the t ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Knock Sensor (KS) Description and Operation
Description Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking. When knocking occurs, the vibration from the cylinder block is applied as pressure to the piez ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Hood
Opening the hood 1. Park the vehicle and set the parking brake. 2. Pull the release lever located under the lower left corner of the dashboard to unlatch the hood. The hood should pop up slightly. 3. Raise the hood slightly, pull the secondary latch (1) inside of the hood center until i ...

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