If the key is removed from the ignition switch or placed in the ACC position or the LOCK/OFF position with the headlamps ON, the headlamps (and/or parking lamps) remain on for about 5 minutes. However, if the driver’s door is opened and closed, the headlights are turned off after 15 seconds. However, with the engine off if the driver's door is opened and closed, the headlamps (and/or parking lamps) are turned off after 15 seconds.
The headlamps (and/or parking lamps) can be turned off by pressing the lock button on the remote key or smart key twice or turning the light switch to the OFF or AUTO position. However, if you turn the light switch to the AUTO position when it is dark outside, the headlamps will not be turned off.
You can activate or deactivate the Headlamp Delay function from the User Settings Mode (Light) on the LCD display.
NOTICE
If the driver gets out of the vehicle through other doors (except driver's door), the battery saver function does not operate and the headlamp delay function does not turn off automatically. Therefore, It causes the battery to be discharged. In this case, make sure to turn off the lamp before getting out of the vehicle.
Hyundai Sonata LF 2014-2019 Owners Manual: Check Tire Inflation Pressure
Check your tires, including the spare tire, once a month or more.
How to check
Use a good quality tire pressure gauge to check tire pressure. You can not tell
if your tires are properly inflated simply by looking at them. Radial tires may
look properly inflated when they are under-inflated.
Remove ...
Hyundai Sonata LF 2014-2019 Service Manual: TPMS Receiver Repair procedures
Replacement
1.
Disconnect the negative (-) battery cable.
2.
Remove the glove box.
(Refer to Body - "Crash Pad")
3.
Remove faulty part and fit bracket assembly to new part.
4.
Secure new part to vehicle and fit connector.
5.
Re-connect battery and turn Ignition on.
6.
After ...