Where is the horn located in the 2010 Toyota Corolla?

You're going to need to pop the hood on Your 2010 Toyota Corolla in order to located the horn. Once You have the hood up first located the radiator and then the grill. If You look towards the middle right side of the radiator and in between the grill You're going to see a black box. This box contains the components that make up the horn for this vehicle. If You need to replace the horn a full new kit will cost You between $100 and $200 for all the parts. If You want to have a professional change it out the the total cost will be between $350 and $500.