How Much Does Mitsubishi Car Key Replacement Cost? Mitsubishi cars have advanced key systems that require specialized skills to replace or reprogramme. Our team of experts is prepared to fix any issue you face with your Mitsubishi keys. We can safely remove a damaged key blade from your ignition barrel and fix or replace the lock cylinder too. Cost of replacing a key The cost of the replacement key for a Mitsubishi car Key replacement cost uk vehicle can vary depending on whether you require remote keys or not. It is important to compare prices before deciding on a company to replace your keys. You should also search for a company that provides 24/7 customer service and has a great reputation. A reputable company will provide a guarantee on their work. The good news is that the price of replacing the Mitsubishi key is less than you might think. In fact, it's 75% less than what a main dealer will charge you.