Proximity Smart Key (Push-Button Start)
A proximity (PASSIVE) smart key fob that allows keyless entry and push-button start when the fob is near the vehicle. Many versions include an internal emergency key blade for the driver’s door.
Features
- Passive keyless entry (touch/handle unlock when nearby)
- Push-button start/stop
- Panic alarm (and often remote hatch release depending on trim)
Buttons
Battery
CR2032
3-5 years typical lifespan
Programming
🏢 Dealer RequiredProgramming typically requires an automotive locksmith with Hyundai-capable diagnostic equipment or a dealer. Some vehicles require all smart keys present during programming; adding a key may erase missing keys for security. If all keys are lost, additional steps are typically required (proof of ownership, possible towing, and immobilizer/anti-theft registration procedures).
⚠️ Common Issues
- Intermittent unlock/start due to weak CR2032 battery
- Proximity detection issues from interference or fob damage (water/impact)
- Aftermarket fob not recognized due to wrong frequency/board or incompatible part number