Why Can't the Car Detect the Key?

[EmilyMarie]

There are several reasons why a car may not detect the key, including a dead key battery, poor battery contact, signal interference, or internal system issues. Below are specific solutions and precautions for when the car cannot detect the key: Replace the key battery to ensure the key has enough power to start the vehicle. Open the key battery cover, adjust the battery position, or remove and reinsert the battery to check if it is functioning properly. Ensure the car's start-up sensor is shielded from electromagnetic interference, or locate and turn off the source of interference to prevent signal disruption. If the issue is due to internal system problems, it cannot be resolved independently. Seek assistance from a professional mechanic or tow the vehicle to a nearby 4S shop for inspection and repair. For vehicles with keyless start systems, it is crucial to protect the key from frequent drops, exposure to damp environments, or contact with magnetic items, as these can easily damage the key. If the key is damaged, it must be repaired or replaced at a professional auto repair shop.