Digital car keys are still a concept suffering from lackluster adoption, mainly because the technology is expensive and phone makers only offer it on high-end mobile devices with a premium price tag.

My mom recently lost the spare set of keys for her 2006 Subaru. The dealer wanted more than $300 to replace the key fob and make a new key. That seemed outrageous, so we started digging into DIY ...

Drop your phone, and your day’s ruined. Lose your car key, and your month might be. In 2025, replacing a modern key fob can cost more than buying a new iPhone. What used to be a simple metal key is ...