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: Alternator Specifications
Specification
ItemSpecificationRated voltage 13.5V, 130A Speed in use 1,000 ~ 18,000 rpm Voltage regulator IC Regulator built-in type Regulator Setting Voltage External mode Refer to below graph Internal mode 14.55 ± 0.3V Temperature Gradient External mode 0 ± 3 mV / ...
Hyundai Sonata LF 2014-2019 Service Manual: Cruise Control Switch Repair procedures
Inspection
[Measuring Resistance]
1.
Disconnect the cruise control switch connector from the control switch.
2.
Measure resistance between terminals on the control switch when each function switch is ON (switch is depressed).
Function switchTerminalResistanceSET -3 - 5550?±5%RES +3 - ...
