GMC Sierra 1500 windshield washer continuously sprays when horn is pressed on GMC Sierra 1500

Some GMC Sierra 1500 owners report experiencing issues where the windshield washer continuously sprays when the horn is pressed, indicating potential problems with the electrical system or wiring. This could be due to a faulty electrical system that causes the washer pump to receive power when the horn is activated. Additionally, some owners have reported that a short circuit in the wiring may lead to this unintended activation. It is recommended to inspect the wiring connected to the windshield washer pump for loose connections or exposed wires that could be causing the issue. Owners should also test the washer pump for proper functionality, as a faulty pump may need replacement. If the problem persists after these checks, consulting a mechanic or automotive technician is advisable to diagnose and repair the issue effectively. Prompt attention to this matter is crucial to prevent further electrical problems or safety hazards in the GMC Sierra 1500.