What does the flashing blue light on honda crv mean?

The flashing blue light that is on Honda CR-V dash is usually part of a third party alarm system. The CR-V's OEM alarm does not have any light on it that will flash to indicate it is armed, but most third party alarms do have a small light on them. Usually this light will only flash when the car is locked and the vehicle is armed. You can disable it by using the key fob that came with Your aftermarket alarm. An aftermarket alarm is a good way to add additional security to Your vehicle. You can also add upgraded features such as remote start and glass brake sensors to make Your car even safer and more enjoyable.