What's wrong with the red light on the car key?

What's wrong with the red light on the car key? First of all, the car key can turn on the red light, which proves that the car key has electricity. There are several possible reasons: 1. Normal phenomenon. On some models, when you press the exit button, a red light will light up. For example, Azeri 5. 2. If the car key light is red, the car won't start, and even the dashboard doesn't light up, which means the battery of the car is dead. It is very likely that the headlights were not turned off when the car was locked on the first day, resulting in the battery being dead. In this case, replacing the battery can solve the problem. 3. If it is a red backlight, it can be determined that it is something dyed red. If the key can't be used normally, it's recommended to use the mechanical key to drive the car first, drive it to a 4S shop or a professional garage, and let the technicians check it to see what caused it. Find out the problem and solve it. Automobile intelligent key's introduction: automobile intelligent key is a common keyless entry system, also known as smart key system. It is a control system composed of transmitter, remote control central locking control module, driving authorization system control module and related wiring harness. And the remote controller and transmitter are integrated on the vehicle key, so that the vehicle can enter the locked or unlocked state according to the signal sent by intelligent key, and even automatically close the window and skylight.