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 Owners Manual: Active ECO system
Active ECO operation Active ECO helps improve fuel efficiency by controlling the engine and transaxle. Fuel-efficiency is determined by the driver's driving habits and road conditions. When the Active ECO button is pressed the ECO indicator (green) will illuminate to show that the Active ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Relay Box (Passenger Compartment) Repair procedures
Inspection Fuse 1. Be sure there is no play in the fuse holders, and that the fuses are held securely. 2. Are the fuse capacities for each circuit correctx 3. Are there any blown fusesx If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always determine why ...

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