It is 10 o’clock at night, your car is in the shop, and you start typing questions into a chatbot. Within seconds, AI collision repair advice tells you your vehicle has a “multi-axis structural unibody twist.” That sounds catastrophic. It also sounds official. Nevertheless, in nearly 18 years of working alongside Rob Grieve at Nylund’s Collision Center, Eric Reamer has never once heard Rob use that phrase about a real car.
This article explains why AI collision repair advice can be confidently wrong, where those answers have already hurt real customers, and how to use AI as a smart research partner instead of a repair authority. Nobody here is arguing against AI. In fact, both of us use it every day. The point is simple: check the math before you act on it.
Why AI Collision Repair Advice Sounds So Convincing
AI chatbots are built to be helpful. As a result, they rarely answer with “I don’t know.” When you ask a question, the tool will almost always produce something that reads like a confident, complete answer.
That eagerness creates a specific problem for AI collision repair advice. If AI told you to remove a body part that doesn’t exist, you would laugh and close the window. However, when it gives you an answer that is 90% plausible and delivered with total confidence, you have no easy way to spot the 10% that is wrong.
Most chatbots also work by blending patterns from huge amounts of public text. In other words, the answer you get often reflects an average of many sources. Some of those sources are expert. Others are not. Averaging an expert’s answer with a guess does not produce an expert answer.
Finally, AI cannot see your car. It only knows what you typed and what it can find in public sources. A trained estimator, by contrast, is looking at the actual damage, measuring the actual structure, and reading the actual factory procedure.
In Episode 300 of The Airing of GRIEVEances, Eric and Rob walk through real emails and letters from customers and insurers that relied on AI. The video shows the documents behind the examples below.
What AI Can’t See: OEM Repair Procedures
Automakers publish detailed repair procedures for every model. These documents specify which parts may be repaired, which must be replaced, where sectioning is allowed, and which welding or bonding methods to use. They also list the steel grades in each structural part.
For Toyota and Lexus, that information lives behind a paid login. Toyota’s Collision Repair Information Bulletins (CRIBs) now require a subscription to the Toyota Technical Information System, as I-CAR’s guide to finding Toyota and Lexus CRIBs explains.
So we asked an AI tool directly whether it could access Toyota and Lexus TIS. It answered honestly: no, TIS is a paid, subscription-based service. The tool can search public web pages. Still, it cannot read the factory procedures your repair actually depends on.
AI Collision Repair Advice on Steel Strength: A Real Example
Next, Rob asked the same AI about the front frame rail on a 2025 Lexus ES. Here is how the conversation went.
| Step | What the AI said | What it means |
|---|---|---|
| First answer | High-strength steel in the 590 to 780 MPa range | A confident range with no source |
| Asked to double-check | Long reply that didn’t address the question | No correction, no new evidence |
| Rob supplied the factory diagram showing 440 MPa | “You’re spot on” | It simply agreed with the uploaded document |
| Comparison: ultra-high-strength hot-stamped rail | Around 1,600 MPa on some vehicles | Often replace-only if damaged |
Notice the pattern. The tool gave two different answers to the same question. When shown the factory document, it never acknowledged the earlier error. Instead, it just agreed.
This matters because steel strength drives repair decisions. Generally, the higher the megapascal rating, the less repairable the part. Some vehicles use ultra-high-strength rails that the automaker says must be replaced when damaged. A 440 MPa rail is a very different situation. Consequently, AI collision repair advice that mislabels the steel can convince an owner that a repairable car is ruined, or the reverse.
In another email, AI warned against hydraulic cold straightening on “hot stamped, ultra high strength steel frame rails.” That caution is reasonable when those rails exist. On this vehicle, they did not.
Myth: Certified Shops Are Legally Bound to Use OEM Parts
One customer used AI to draft a letter to their insurance company. Part of it read:
“The certified collision repair facility, Nylund’s Collision Center, is contractually and legally bound by factory specifications. They cannot and will not install counterfeit, replica, or aftermarket parts on luxury vehicles.”
That statement is only partly true, which is a common pattern in AI collision repair advice. Nylund’s does choose to install only factory parts. Toyota and Lexus strongly recommend genuine parts through their repair documentation and CRIBs, and they explain the safety reasons. Even so, the Toyota and Lexus certification agreement does not legally require OEM parts.
At other certified shops, policies differ. Some certification programs are stricter than others. With Toyota and Lexus, for example, a different certified shop may install aftermarket parts if the owner insists and signs a form saying so. That is not an option at Nylund’s. It is, however, an option elsewhere.
How AI Collision Repair Advice Can Weaken Your Insurance Letter
Now picture the adjuster reading that letter. They know the “legally bound” claim is not accurate. Next, they can point to the policy language and to state rules that, in the insurer’s view, allow non-OEM parts. Suddenly, the customer’s strongest point looks like a misunderstanding, and the rest of the letter loses credibility.
The same letter also cited laws. That deserves real caution. Neither of us is a lawyer, and we don’t know whether any of those cited laws actually apply. This article is not legal advice. If a dispute turns on a statute, talk to a licensed attorney before you quote one.
Calling a Bumper Cover “Structural” in a Complaint
Another customer sent a complaint to the state insurance regulator. The AI-drafted letter included this bullet: “Sourcing incorrect structural components. This company included a front bumper on the original estimate, but sourced the completely incorrect part number.”
The part in question was a bumper cover. That is the plastic outer piece, not a structural component. A wrong part number is a legitimate concern, and the customer had a fair point to make. Unfortunately, the AI collision repair advice behind the letter overstated it. Calling the cover “structural” handed the insurer an easy rebuttal: the customer is calling non-structural parts structural.
When a regulator is acting as the mediator, accuracy is everything. Interestingly, the regulator has noticed this trend too. The Colorado Division of Insurance complaint page states that it is “seeing an increase in AI-generated complaints that often contain significant errors” regarding state laws and policy details.
When an Adjuster Uses AI Collision Repair Advice
Customers are not the only ones relying on chatbots. In one recent case, an insurance adjuster denied ADAS calibrations because AI collision repair advice claimed that performing one calibration automatically completes the other. According to Rob, that could not be farther from the truth.
Each driver assistance system has its own calibration requirements in the automaker’s procedures. Those requirements depend on the vehicle, the system, and the repair performed. A chatbot’s summary is no substitute for the procedure itself. Skipping a required calibration can leave cameras or radar sensors reading the road incorrectly.
Why This Problem Keeps Growing
More owners are turning to chatbots every month, and so are insurance staff. At Nylund’s, Rob now fields calls from owners who had a shop send them frame specifications, pasted them into a chatbot, and came away convinced their car has some rare and alarming condition.
Most of those calls end with relief. Once a trained professional looks at the actual vehicle and the actual factory procedure, the scary label usually disappears.
Even the AI companies acknowledge the limits. Popular tools such as ChatGPT and Claude display a reminder that AI can make mistakes. That small line of text deserves more attention than it gets, especially when the answer could change how your car is repaired or how your claim is handled.
Put simply, the tools are improving, but they still cannot replace hands, eyes, measurements, and factory documentation.
How to Use AI Collision Repair Advice the Right Way
AI can be incredibly useful during a repair. The key is to treat AI collision repair advice as a starting point. Use it to ask better questions, not to settle technical disputes.
Here are approaches that work well:
- Ask what you should be asking. Prompt the AI with “What questions should I ask my repair shop and insurer about this repair?”
- Compare estimates. Upload the insurer’s estimate and the shop’s estimate, then ask what differs and what might be missing.
- Improve your prompt first. Ask the AI how to phrase your question for the most accurate answer, not the answer you hope to hear.
- Tell it to verify. Instruct the tool to double-check and triple-check before responding. This reduces, but does not eliminate, made-up answers.
Remember that garbage in still means garbage out. Two people can ask about the same car and get very different answers simply because of how they wrote the prompt.
A Checklist Before You Send Anything
Before an AI-drafted email or letter goes to your insurer or a regulator, run through these steps:
- Confirm every technical term with your repair shop.
- Remove any claim that a shop is “legally required” to do something unless the shop confirms it.
- Delete statute numbers and legal citations you haven’t verified with an attorney.
- Check that parts described as “structural” really are structural.
- Attach the shop’s documentation instead of paraphrasing it.
- Read the letter aloud and cut anything you can’t personally explain.
Questions to Bring to Your Repair Professional
There is no shame in saying, “AI told me this. What’s your assessment?” Rob hears versions of that question every day, and a good shop welcomes it. As a Toyota and Lexus certified facility, Nylund’s can check the AI’s claim against the factory procedure for your exact vehicle.
Bring questions like these:
- Which OEM repair procedures apply to my vehicle?
- What steel grades are in the damaged parts, and are they repairable or replace-only?
- Which ADAS calibrations does this repair require, and why?
- What parts are you installing, and what does my policy allow?
Good answers tell you you’re on the right track. Vague or evasive answers tell you something too. At that point, you may want to ask whether your vehicle is in the right place.
The Bottom Line on AI Collision Repair Advice
AI is here to stay, and you can’t put the toothpaste back in the tube. Handled carefully, it helps you understand your repair and prepare smarter questions. Used carelessly, it can put inaccurate claims in your letters, weaken your position with an insurer, or cause needless panic about your car.
So who do you want fixing your car? The answer shouldn’t be a chatbot. AI collision repair advice belongs at the start of your research, never at the end of it. Let trained technicians, factory procedures, and verified documentation decide how your vehicle gets repaired.