If your Honda car key has been damaged, there are few, if any, options for fixing the actual key. You can, however, get a replacement key from the dealer. Depending on your Honda's year and model, you may be able to have your key replaced or copied at a hardware store. Many car models since the late 1990s and early 2000s have used microchips installed in ignition keys to help prevent car theft. Without the microchip present inside the ignition, the Honda will not start. Some hardware stores are able to replace and install new chips.
Remove the key from the ignition by tapping on it with a hammer if it is stuck in your Honda's ignition lock system. Be careful not to damage the key or ignition system with heavy hitting. Although this is a standard sign of ignition lock cylinder failure, it usually does not damage the key. If the key does become damaged or broken, you will need to do more extensive repairs.
Use epoxy to glue broken key halves back together if the key has somehow been broken. Be sure to purchase epoxy that works with metals, and allow for it to dry over a period of 48 hours or more, as specified by the epoxy's directions. Test the key's strength by trying to break the epoxy's bond before inserting the key into a lock. Insert the key into a door lock and twist the key to test its strength. If it works, try using it in the ignition lock cylinder.
Take your glued-together key to a hardware store to see if it can make a duplicate. Certain types of automobile ignition keys can be duplicated cheaply. Depending on the hardware store, a micro-chipped key may also be able to be reproduced with a new microchip, or have the old microchip installed. If the hardware store cannot duplicate the key, take the key to a Honda dealer to have its parts department replace or duplicate the key.
Contact your Honda dealer prior to taking your key there, explain your situation and inquire whether or not you need any form of identification or verification of ownership of the Honda vehicle. Depending on your make and model, microchip key replacements may cost several hundred dollars.
Take your key back to the hardware store or dealer if you are not able to insert and retrieve it from the lock easily. Some edges may need to be smoothed out. Typically, hardware stores or dealers have the heavy-duty equipment to correct hard edges or bad fits for your key.
