is it a buzzing from the back of the car. it is probably a fuel pump in that case. nuthin to worry about. If your buzzing is coming from under your dash or up by your seat somewhere it is a faulty warning buzzer. If this is the case you will either need to find the buzzer under your dash and disconnect or replace it. If you cannot find it you can ask a local mechanic to do it for you, or you can get a "Haynes" manual or other manual specifically for your car, and that will tell you where to find it.
To stop the buzzing sound you will need to disconnect the buzzer. It is normally red plastic and located near the steering column at the top of the brake pedal mount.
turn it off!
Their wings cause the buzzing sound so the only time the're not buzzing is when they aren't flying, and if you were to cut of their wings! Hmm...... maybe I should try that, JK! - Dogluva21
A buzzing sound coming from a light switch means the switch is going bad and is shorting in the wall. Stop using the switch and replace immediately, this is a fire hazard.
Where is the noise coming from? Under then hood, or interior?
top stops working. you stop hearing the buzzing sound of the switch working.
I am guessing that you have a bad turn signal relay. Locate it by sound and replace it.
I'm not positive this is the same for a 2010 truck as it is for the older ones but listen to the buzz and follow it's sound, a small buzzer should be located on the cabin fuse panel, remove this and the buzzer will stop, sometimes you can feel it vibrating to know which item it is.
Close the door
Update. This might be the answer. see:http://www.micra.org.uk/showthread.php?t=8953&highlight=buzzing
Don't go over 75 MPH.
*remove at your own risk* Depending on the vehicle, the buzzer can be found by the fuse box, behind the radio, behind the glove box, in the console, or somewhere in the dash. Locate the source of the sound and take the panelling off. The buzzer sometimes has a plug going straight to it, while other times they are built into a circut board. Unplug or rip the buzzer off the circut board and WHAM, no more annoying sound. Recommended tools: Scredrivers, socket wrench, some intelligence, two human hands, and a goal for killing the buzzer. in all dodge stealths the door buzzer is behind the radio. In 91-96 escorts the buzzer is behind the fuse box. I only know this from personal experience. I do not condone removing the buzzer for safety reasons. *remove at your own risk* Post-1996 cars usually have a complete module for this function, and that module controls many other things as well. Removal isn't feasible. Usually this probelm is caused by a worn out ignition switch.