Hyundai Sonata: 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 keys 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 mechanic ...
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 tran ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
On-vehicle Inspection
Inspect ignition coil assembly and Perform spark test
1.
Check for DTCs.
•
If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide)
2.
Check if sparks occur.
(1)
Remove the engi ...
Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description
Exhaust emissions (CO, HC, NOx) are controlled by a
combination of engine modifications and the addition of special control
components.
Modifications to the combustion chamber, intake manifold, camshaft and ignition system form the basic control system.
These items have been int ...
