What to Do When Your Car Remote Gets Wet and Won't Unlock?

[JacksonFitz]

If your car key gets wet, avoid pressing any buttons immediately, as this can accelerate water penetration into the inner components. Do not use hot air to dry it, as the circuit board inside is sensitive to excessive heat. Alternatively, you can place the key in a container of dry rice. Gently clean the internal button contacts and other parts with high-concentration alcohol, then let it dry before reinserting the battery. If the remote still doesn't work after following these steps, the circuit board is likely damaged. In this case, visit a 4S store to get a replacement key.