The instrument cluster is a collection of gauges and lights that provides information to the driver about the car's performance. If the instrument cluster is blown out, the driver will not be able to see important information such as the car's speed, fuel level, and engine temperature. This can be very dangerous, as it can lead to an accident.
If you suspect that there is a short circuit in your car, it is important to have it repaired as soon as possible. A short circuit can cause serious damage to your car, and it can also be a safety hazard.