I have an 07 silverado classic. last week i go to get in my truck and when i unlocked it noticed that the lights dont flash like usuall, i start it up and try my blinkers and nothing happens, i also have no tail lights. could this be the bcm causing these problems or something else. i have checked all fuses for the turn signals, and all other lights and they are good.

Will

 

Most likely the cause is a failed multifuntion switch. AKA the directional switch. not too difficult to replace, if you disarm the air bag circuit first.