Hyundai Sonata: Smart key
With a smart key, you can lock or unlock a door (and trunk) and even start the engine without inserting the key.
The functions of buttons on a smart key are similar to the remote keyless entry. (Refer to the “Remote keyless entry” in this section.)
1. Crankcase emission control system
The positive crankcase ventilation system is employed to prevent air pollution caused by blow-by gases being emitted from the crankcase. This system supplies fresh filtered air to the crankcase th ...
The immobilizer light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turn ...
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of the driven wheels. If wheel spin is detected, brake pressure is applied to the slipping wheel(s) and engine power is reduced to provide e ...