Hyundai Sonata: Remote keyless entry
Battery replacement
A smart key battery should last for several years, but if the smart key is not
working properly, try replacing the battery with a new one. If you are unsure how
to use your smart key or replace ...
Remote keyless entry system operations
Lock (1)
All doors are locked if the lock button is pressed. If all doors, trunk and hood
are closed, the hazard warning lights will blink once to indicate that all doors
are locked.
Also, i ...
See also:
Body Control Module (BCM). Schematic Diagrams
BCM Connector Terminals
BCM Input Signal SPEC
No
Input signal name
Logic state
ON/OFF voltage
recognition level (V)
Remarks
...
Illuminated engine start/stop button
Whenever the front door is opened, the engine start/stop button will illuminate
for your convenience. The light will go off after about 30 seconds when the door
is closed. ...
Troubleshooting
Troubleshooting
Symptom
Suspect area
Engine will not start or struggle to start
Vapor hose damaged or disconnected
Engine strugg ...
