hyundai santa fe sport 2014 ran good yesterday, but today nothing. hasd to use key to open door and checked battery all is good. when I hooked up battery charger the alarm system started going off. ba
had to use key to unlock vehicle. changed the battery to remote for starting and unlocking still nothing. checked battery and said was good but I put the charger on anyway to see what would happen and the alarm went off. saying no recognition of key, chen I set on boosting the car off
The car lost the code needed communicate remotely. Have a mechanic or dealer reprogram so the car and the fob can talk to each other. OR if you're somewhat handy, the owners manual (available on line) will show you how: it's really easy.