How program a key with chip to a Mazda tribute?

To program a key with a chip for a Mazda Tribute, you'll need a working key or a key fob and the vehicle's ignition. Start by inserting the existing key into the ignition and turning it to the "On" position without starting the engine. After a few seconds, turn the key back to the "Off" position and remove it. Then, insert the new key within 10 seconds and turn it to the "On" position. Wait for the security light to turn off, indicating successful programming. If you don't have a working key, you may need to consult a professional locksmith or a Mazda dealer for assistance.