While car keys of the past were fairly simple devices, your Lexus SmartAccess Key Fob is an extremely sophisticated device. Contained inside is hardware that vehicle-based sensors can detect, allowing you to lock and unlock your vehicle doors—as well as start the push-button ignition—without having to remove your keys from your pocket or purse. Daily use, exposure to weather elements, and even minor damage could cause your key to not operate as it should.
Depending on the model year of your Lexus, your key could contain a battery which may wear out over time through daily use. If you begin to experience symptoms of a weak key battery, it’s time to let our Lexus parts experts determine if your key requires a new battery or a replacement.