OEM Mitsubishi Keys and Fobs

Access Your Vehicle Securely With Quality Keys and Transponders

The Mitsubishi Motors of North America parts team knows what it takes to keep your vehicle running great. Keys and transponders provide secure access to your vehicle and prevent unauthorized starting. Modern keys contain electronic chips that communicate with your vehicle's immobilizer system. The transponder must send the correct code for the engine to start. This security feature prevents theft by making key duplication more difficult. Key fobs include buttons for remote locking, unlocking, and other convenience features. Damaged or lost keys require replacement and programming to function properly.

How Transponder Keys Prevent Theft

Each transponder key contains a unique electronic code stored in a chip embedded in the plastic head. When you insert the key and turn it, an antenna ring around the ignition reads the transponder code. The immobilizer system compares the received code against stored authorized codes. If codes match, the system allows fuel injection and ignition to operate. If codes don't match, the engine cranks but won't start. This security system activates every time you start your vehicle. Vehicles like the Mitsubishi Carisma and Mitsubishi Airtrek use transponder technology for theft prevention.

Why Keys and Transponders Fail

Keys break from physical stress when forcing stuck locks or ignitions. Transponder chips fail from water damage or electrical problems. Remote fob batteries die from age and use. Button contacts wear out from repeated pressing. Key blade edges wear down, making insertion difficult. Electronic interference prevents proper code transmission. Physical damage to key fobs from drops or impacts breaks internal components. Aftermarket keys often lack proper programming capability or use incompatible transponder technology. The ignition switch condition affects key operation and starting reliability.

When Key Replacement Becomes Necessary

Replace keys when physical damage prevents normal operation or when transponders stop communicating with the immobilizer. Intermittent starting suggests transponder problems. Remote functions failing indicate battery or internal damage. Most key batteries need replacement every two to three years. Lost keys require immediate replacement and system reprogramming. Worn key blades should be replaced before they break in the lock. Genuine Mitsubishi keys and transponders program correctly and include proper security coding compared to aftermarket keys that may not function with all vehicle features. Get back on the road quickly with genuine components from Mitsubishi Motors of North America.