Chevrolet Impala Horn Replacement Guide: 1970-2002
Before you replace your Impala's horn, learn how to diagnose the real problem, whether it's the horn, the relay, or the fuse.
- Always check the horn fuse and relay before buying a new horn; they are the most common and cheapest fixes.
- Most Impalas use a dual-horn system (high and low note); a weak sound often means one has failed.
- On 2000-2002 models, the horns are under the passenger headlight, requiring its removal for access.
- ACDelco provides OEM-level quality, while Standard Ignition is a reliable and more affordable aftermarket alternative.
Is the Horn Really the Problem?
When your Impala's horn stops working, the horn assembly itself isn't always the cause. More often, the issue is a simpler, cheaper electrical component. Before spending money on a new horn, run through these quick diagnostic steps.
Start with the Basics
- Check the Fuse: The first and easiest thing to check is the horn fuse. Locate the fuse box (under the hood or dashboard) and find the fuse labeled for the horn. If the metal strip inside is broken, it has blown. Replace it with a new fuse of the exact same amperage. If the new fuse blows immediately, you have a short circuit that needs professional diagnosis.
- Test the Relay: Have a helper press the horn button while you listen for a 'click' sound from the fuse box under the hood. If you hear a click, the relay is working, and the problem is likely the horn itself or the wiring to it. If you don't hear a click, the relay may be bad. For many Impalas, you can swap the horn relay with an identical one from a non-essential system 🎬 Watch: How to locate and test your horn fuse and relay. (like the A/C) to see if the horn starts working.
- Consider the Clock Spring (2000-2002 models): On newer Impalas with airbags, a component called a clock spring allows the steering wheel to turn while maintaining electrical connections. If your horn only works when the wheel is in a certain position, or if your airbag light is also on, a failed clock spring is a likely cause. This is a more complex repair.
Choosing the Right Aftermarket Horn
If you've confirmed the horn itself has failed, you have several quality aftermarket options. Most 1970-2002 Impalas have two horns, a high note and a low note. A weak or funny-sounding horn often means one of the two has failed. For a proper sound, it's best to replace them in pairs.
Brand Quality Tiers
- Tier 1: ACDelco: As GM's official parts brand, ACDelco offers parts that are either original equipment (OEM) or designed to the same standards. Choosing ACDelco is the closest you can get to the horn your Impala had when it left the factory. While some of their value lines can be reboxed parts from other manufacturers, their "GM Genuine Parts" line ensures OEM quality.
- Tier 2: Standard Ignition (SMP): Standard is a highly respected aftermarket manufacturer known for producing reliable electrical components. They are a solid choice for owners looking for a balance of quality and price, often considered a dependable alternative to OEM parts.
- Tier 3: Replacement: This category covers various value-oriented brands. While they offer the lowest price point, their construction and longevity may not match that of ACDelco or Standard Ignition. They can be a good option for a budget-conscious repair, but verify the warranty and return policy.
New Aftermarket Horn Cost for 1970-2002 Chevrolet Impala
| Part Type | Price Range |
|---|---|
| New Aftermarket Horn (ACDelco, Standard, etc.) | $36.29 - $95.34 |
| New OEM Horn (GM Genuine) | $50 - $95 (per horn) |
| Shop Labor for Installation | $60 - $120 |
Pro Tip: On 2000-2002 Impalas, the horns are located under the passenger-side headlight assembly. Access requires removing the headlight, which adds some time to the replacement but is manageable for a DIYer. 🎬 Watch this walkthrough for replacing horns on 2000-2005 models. On older models, they are typically easier to access behind the front grille.
Frequently Asked Questions (FAQ)
Why did my Impala's horn suddenly stop working?
The most common reason is a blown fuse or a bad horn relay. These are the first two things you should check. Other causes include a bad horn switch in the steering wheel, wiring issues, or a failed horn unit.
Why does my horn sound weak or different?
Your Impala likely has two horns (high and low pitch). A weak, quiet, or strange-sounding horn usually means one of the two has failed. It can also be caused by a poor ground connection or low voltage from a corroding battery terminal.
My horn went off by itself and got stuck on. What happened?
This is almost always caused by a stuck horn relay. The relay is an electromagnetic switch that can sometimes fail in the 'on' position. Pulling the horn fuse will silence it until you can replace the faulty relay.
Where are the horns located on my Impala?
On the 2000-2002 generation, the two horns are mounted together underneath the passenger side headlight. For older models from the 70s, 80s, and 90s, they are typically found behind the front grille, mounted to the radiator support.
Helpful Videos
Technical Specifications
System Voltage: 12V. Configuration: Typically a dual-horn system with separate high-note and low-note horns.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.