For your safety, the automatic transmission has a shift-lock system which prevents shifting the transmission from P (Park) into R (Reverse) unless the brake pedal is depressed.
To shift the transmission from P (Park) into R (Reverse):
1. Depress and hold the brake pedal.
2. Start the engine or place the ignition switch in the ON position.
3. Move the shift lever.
Hyundai Sonata LF 2014-2019 Owners Manual: Severe Driving Conditions
A- Repeatedly driving short distances of less than 5 miles (8 km) in normal temperature
or less than 10 miles (16 km) in freezing temperature
B- Extensive engine idling or low speed driving for long distances
C-Driving on rough, dusty, muddy, unpaved, graveled or saltspread roads
D-Driving in areas ...
Hyundai Sonata LF 2014-2019 Service Manual: General Information
General Troubleshooting Information
Before Troubleshooting
1.
Check applicable fuses in the appropriate fuse/relay box.
2.
Check the battery for damage, state of charge, and clean and tight connections.
(Refer to Engine Electrical System - "Battery")
•
Do not qu ...