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On average, the cost for a GMC R3500 Horn Relay Replacement is $102 with $7 for parts and $95 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1989 GMC R3500V8-7.4L | Service typeHorn Relay Replacement | Estimate$130.55 | Shop/Dealer Price$144.44 - $163.61 |
| 1991 GMC R3500V8-7.4L | Service typeHorn Relay Replacement | Estimate$110.55 | Shop/Dealer Price$124.46 - $143.64 |
| 1990 GMC R3500V8-7.4L | Service typeHorn Relay Replacement | Estimate$110.55 | Shop/Dealer Price$124.46 - $143.64 |
| 1989 GMC R3500V8-6.2L Diesel | Service typeHorn Relay Replacement | Estimate$110.55 | Shop/Dealer Price$124.44 - $143.60 |
| 1990 GMC R3500V8-6.2L Diesel | Service typeHorn Relay Replacement | Estimate$110.55 | Shop/Dealer Price$124.47 - $143.67 |
| 1988 GMC R3500V8-7.4L | Service typeHorn Relay Replacement | Estimate$110.55 | Shop/Dealer Price$124.46 - $143.64 |
| 1991 GMC R3500V8-5.7L | Service typeHorn Relay Replacement | Estimate$115.55 | Shop/Dealer Price$129.32 - $148.40 |
| 1990 GMC R3500V8-5.7L | Service typeHorn Relay Replacement | Estimate$115.55 | Shop/Dealer Price$129.69 - $149.06 |
The horn relay attaches a low power circuit to an electromagnet, which operates a mechanical switch. That switch either opens or closes a circuit that carries a higher power, which causes the horn to sound. There is a low power circuit running to your car’s steering wheel, and when it is activated, the horn sounds. When you release the horn button, the low power circuit is opened and the power level of the relay drops, silencing the horn.
If your horn isn’t working properly, you have no way of alerting another driver that he or she is about to collide with your vehicle, and you have no way of telling other drivers of any dangers further down the road. Our expert mechanics can diagnose any problems with your car horn, and if necessary, can replace the horn relay for you.
Your horn is your first line of defense when it comes to problems in traffic. With an inoperable horn relay, your horn won’t work at all. If your horn isn’t working properly, get one of our expert mechanics to immediately correct the problem.
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