Three problems related to horn assembly have been reported for the 2013 Toyota Tacoma. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Toyota Tacoma based on all problems reported for the 2013 Tacoma.
Issue was noticed while driving, attempted to activate horn when vehicle in oncoming lane crossed in to my lane. Horn would not activate. Thankfully other driver course corrected in time. Complaint is related to has been reported to me by Toyota as sudden failure of the clock spring or spiral cable. Horn failed approximately one week after vehicle had just passed an annual state inspection. Was informed that this is something "that happens" with time and forced to pay $700 to have repaired. Was warned that part that failed was also in control of airbags, cruise control and other electronics embedded in the steering column. This is an item which has previously been voluntarily recalled on other model years of Toyota Tacoma's and other models.
My horn stopped working and when I took my truck to the dealer he said that it was the clock spring cable inside of the steering wheel. The service agent daniel arviza at north bakersfield Toyota in bakersfield California advised me that if I didn't get it fixed that the airbag could fail to deploy in the case of an accident. This seems like a important part of the truck to fail after only 3 years. I bought the truck new from the dealership and the warranty has expired. It's going to cost almost 500 dollars, but because it is a safety issue I have no choice but to have the part replaced.
The horn ceased to work in the straight ahead position of the steering wheel. Toyota charged me $530 to replace the spiral cable. I considered it a safety issue. Consider driving on a busy highway and the vehicle next to you tries to move into your lane. I wrote a letter of complaint to Toyota USA. They responded only that my vehicle was out of warranty.