Modern locksmith workflows demand speed, repeatability, and security. The KD-X4 Auto Key Programmer streamlines adding an extra smart key to the 2023 Hyundai Elantra (CN7) with a guided, low‑risk routine that preserves existing keys while cutting diagnostic guesswork. 1. Prep Power & Tools: Stable vehicle voltage, working original key, new KD-compatible blank ready. 2. Identify Vehicle: … Continue reading Add a Smart Key to the 2023 Hyundai Elantra in Minutes with KD-X4