Used Auto Parts and ADAS Systems: What Repair Professionals Need to Know

With most new vehicles today now having more advanced ADAS systems in place, it’s only expected that more customers will end up needing to replace components at some point. A rear-end collision could damage sensors in the bumper, for example, and require replacement. 

This can get expensive quickly. 

According to recent research from AAA, the average cost of replacing ADAS components in a minor front collision repair was $1,540, and the cost to replace ADAS components in a minor rear collision was $684. 

And so the question comes into play: Can I purchase used or aftermarket parts as a replacement? 

With repair costs mounting, both shops and customers may be tempted to explore used parts as an alternative—but this approach carries significant risks that every repair professional should understand. While using salvaged or aftermarket parts has long been a cost-saving strategy for repairs, it’s a lot more complicated with ADAS components. 

Repair shops need to understand when used parts may be appropriate, and when they could compromise safety systems. In this post we’ll talk about if and when you can use different types of replacement parts without putting your business at risk for liability concerns or customer safety in jeopardy. 

Can I install used auto parts for ADAS systems? 

ADAS systems depend on precisely calibrated sensors to function properly. These sensors detect lane markings, monitor blind spots, identify potential collisions, and perform numerous other safety functions that drivers now rely on daily. 

The bottom line here is simple: All ADAS components are all electrical components. The majority of these components will become electronically locked to the original vehicle via VIN, and they can’t be reprogrammed to work in a different vehicle. In almost all cases, it’s not even a matter of “should I,” but “can I.” And the answer is often going to be. 

As a result, it’s typically strongly recommended not to use used or salvaged auto parts when replacing ADAS components during repairs, even in the rare cases when you potentially technically could. Let’s dive a little deeper into why. 

OEM positions on used ADAS components

Many manufacturers have taken clear positions against using salvaged ADAS components. For example, General Motors (GM) specifically states that only new, genuine GM parts should be used for ADAS repairs on Buick vehicles. 

They aren’t the only ones. Honda, Toyota, and Ford are just a few manufacturers that require new, OEM-specific parts to be used when replacing ADAS components. Failing to follow these directions could put a customer’s insurance policy at risk, and it can open your shop to potential liability. 

And this isn’t just about selling more parts; there are significant engineering and safety concerns to keep in mind. Salvaged or used auto parts will by definition not be in mint condition, and it can be difficult to assess their current functionality. This could impact how well they work. 

The critical difference: ADAS parts vs. traditional components

While traditional mechanical parts have clear indicators of functionality—they either work or they don't—ADAS components add an additional layer of complexity. A used radar sensor might power on and communicate with the vehicle's computer system, but could still be subtly misaligned or damaged in ways that aren't immediately apparent.

You also have to consider functionality. ADAS systems require exact positioning and calibration to operate as designed— with extreme precision. They’re also highly specialized tech that needs to interact with a vehicle’s larger ADAS system. A radar sensor, for example, may be used to trigger automatic emergency braking. 

What makes this particularly challenging is that improper ADAS function may not be obvious to drivers until a critical moment when the system fails to identify a hazard or respond appropriately. 

Unlike a malfunctioning headlight or rough-running engine that's immediately noticeable, ADAS failures may only become apparent during emergency situations when these systems are most needed.

Material considerations for sensor operation

Even the materials used in repairs near ADAS components can impact system performance. 

Repair material that would normally be acceptable to use in a repair might not allow the sensor to function properly, for example. This means that even seemingly minor repairs can have major implications for ADAS functionality.

Body fillers, certain adhesives, or improper paint materials can interfere with sensor operation when applied near radar or ultrasonic components. This level of precision means that not only must the parts themselves meet specific requirements, but all adjacent repairs must be executed with ADAS functionality in mind. And if you’re relying on used parts, they could cause additional problems or impact functionality. 

Liability considerations

Beyond the immediate technical challenges, repair shops face significant liability exposure when using non-OEM approved parts for ADAS repairs. If a vehicle is involved in a collision after repair, and investigation reveals that used ADAS components were installed against manufacturer recommendations, the shop could face substantial legal consequences.

Proper documentation becomes especially critical when making repair decisions that involve ADAS components. Every decision regarding part selection should be documented with references to manufacturer guidelines, industry best practices, and customer approvals.

Aftermarket parts vs. used parts

It's important to distinguish between used (salvaged) parts and aftermarket parts manufactured as new by third-party companies. Some aftermarket manufacturers develop ADAS components that meet or exceed OEM specifications, and these may be viable alternatives in certain repair scenarios.

However, there can be significant differences in material quality, precision, and durability between OEM and aftermarket options. When it comes to ADAS components, these differences may be even more critical given the precise calibration requirements of these systems.

For this reason, we strongly recommend using OEM manufactured parts for ADAS calibrations. This can prevent potential liability issues and ensure that all of your repairs and calibrations are OEM-compliant. 

Best practices for repair shops

Based on the available information from industry sources, repair professionals should consider these best practices when dealing with ADAS repairs:

• Always consult OEM repair procedures first to determine if used or aftermarket parts are approved for specific ADAS components. Revv can help you identify all OEM-required procedures. 
• Communicate clearly with customers about the importance of proper ADAS repairs and the potential risks of using non-approved parts.
• Document all repair decisions thoroughly, especially when customers choose options that deviate from manufacturer recommendations.
• Factor in calibration requirements when estimating the total cost of repairs. Using a cheaper part that requires extensive additional calibration may not save money overall.
• Stay updated on manufacturer positions regarding ADAS repairs, as these guidelines continue to evolve with technology.

Making informed decisions

The decision to use OEM, aftermarket, or used parts for ADAS repairs ultimately involves balancing cost considerations with safety, functionality, and liability concerns. What's clear from industry guidance is that ADAS components aren't simply "plug and play" parts that can be swapped without consequences. There are serious risks for mechanics and customers looking to reduce costs with already-used auto parts. 

Customers may be resistant to this, especially if they already favor used parts to cut back on costs. It’s important to have clear, transparent discussions with customers upfront. Let them know why salvaged parts aren’t an option, addressing the safety, insurance, and liability risks. This can help them understand the value of new replacement parts, even though they can come with a little sticker shock. 

By understanding the unique considerations surrounding ADAS repairs and communicating these effectively to customers, repair shops can make informed decisions that protect both their businesses and their customers' safety. 

And that means having the right tools in place to help you do so. Revv helps repair professionals quickly identify required calibrations and access OEM repair procedures in seconds. You can stay compliant, increase revenue, and ensure your customers’ favorite safety features are fully functional. 

Book a demo today to see how we can help you offer safe, compliant, and revenue-boosting ADAS calibrations at scale. 

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