The 10 Most Scariest Things About Laguna Cardkey Repair The Ultimate Guide to Renault Laguna Cardkey Repair: Troubleshooting, Solutions, and Maintenance Few things are as aggravating as strolling up to your vehicle, pushing the unlock button on your key fob, and getting absolute silence in return. For owners of the popular Renault Laguna-- specifically designs utilizing the revolutionary hands-free keycard system-- this is a distinctively vexing concern. When your Laguna cardkey stops working, you aren't simply locked out; frequently, you can't even begin the ignition. Understanding why these cardkeys stop working, how to diagnose the concern, and checking out the finest routes for Renault Laguna cardkey repair can conserve owners both time and hundreds of dollars at the dealer. The Evolution of the Renault Laguna Keycard Introduced in the early 2000s for the Laguna II generation, Renault's credit-card-sized entry and ignition system was a significant departure from conventional physical secrets. Rather of turning a metal type in a tumbler, motorists moved the card into a dash slot or kept it in their pocket while pushing a start button. While ingenious and sleek, housing complex radio-frequency recognition (RFID) chips, batteries, and intricate micro-switches inside a plastic card that often gets rested on, dropped, or exposed to wetness is a recipe for long-lasting wear and tear. Common Symptoms of a Failing Laguna Cardkey Before diving into repair work, it helps to determine what sort of failure is taking place. Cardkey problems generally fall into 2 classifications: overall electronic failure or mechanical micro-switch deterioration. Intermittent Operation: The car unlocks sometimes, or the start button needs numerous attempts.