Acura Car Key Replacement: What Type of Key Does Your Model Use?
Acura has used several generations of key technology across its lineup, and the type of key your vehicle needs determines exactly what equipment, parts, and programming steps are involved. Older Acura Integra models from the late 1990s through early 2000s typically used a basic transponder key — a chip embedded in the plastic head that must be matched to the vehicle's immobilizer before the engine will start. Replacing one requires both a correctly cut key blank and a programming step that reads and writes to the car's ECU. Mid-generation models like the MDX, RDX, and TL moved to proximity fobs and remote head keys, adding rolling-code encryption that changes with every use. Current Acura models, including the newer Integra and TLX, use a smart key system — also called a push-to-start or passive entry key — where the fob communicates with multiple antennas around the vehicle and must be paired precisely to the car's body control module.
Our technicians carry the diagnostic tools to program all of these systems on-site. When you call about an Acura MDX with locked keys in the car, or an Acura RDX lockout, we arrive with equipment loaded and ready rather than ordering parts later. We will ask you to have your registration, title, or insurance card available so we can confirm ownership — a step we take seriously and non-negotiably, because it protects you as much as it protects your vehicle.
