What if the Warning Light Turns On?
There are a number of reasons the Intelligent Key warning light will come on. It is important to note that this light is separate from the low battery light. The warning light indicates a problem with either the key fob or the electronic systems in the car.
Communication problems may be one of the reasons that the warning light turns on. If the car cannot read the key fob, the antennae on either side have been compromised or signals are no longer being sent, the light will notify you of a problem. With older designs, keeping the key fob too close to an active cell phone was known to occasionally cause issues with the signal, leading to a replacement for the key fob. With newer designs this is far less common, but because it is not impossible, it is important to consider this when arranging your key fob and cell phone in your pockets or bags.
The most likely situation that would cause the warning light to come on is a problem with the electronic steering system. The steering system locks by default when the car is parked and turned off, so a malfunctioning system may mean that you are unable to start your car. This is for security purposes and should not be cause for alarm. Simply get your vehicle serviced as soon as possible.