Parts availability has made this a much bigger issue than it was three years ago. The delay is no longer the exception. It is the pattern.

Why Repairs Are Taking Longer in 2026

Industry reporting from this spring documents collision shops waiting longer for parts, insurers writing off more vehicles rather than repairing them, and a growing number of drivers paying out of pocket to avoid filing smaller claims at all. Roughly 44% of the OEM collision parts sold in the United States are manufactured overseas, which ties your bumper cover to a supply chain that has been anything but stable.

Layer in modern vehicle technology. Sensor housings, camera brackets, radar modules, and the calibration work that follows all extend the repair plan. A job that would have taken eight days on a 2015 model can run three weeks or longer on a 2023 one, and that is before a single part goes on backorder.

Every additional day your vehicle sits at the shop is a day you are deprived of something you own and are still paying for. That deprivation has a dollar value, and the party who caused it is the party responsible for it.

What Loss of Use Actually Means

Loss of use is compensation for being deprived of the use of your vehicle during the period reasonably required to repair or replace it. It is not the same thing as the rental car benefit on your own policy. Rental reimbursement is a coverage you purchased, subject to a daily cap and a total limit. Loss of use is a category of damages owed by the at-fault party under general principles of property damage.

The practical distinction matters. Your rental coverage might pay $30 a day for 30 days and stop. If the reasonable repair period ran 50 days, the remaining 20 days are still a loss you suffered. And if you never rented a car at all because you borrowed a relative’s truck or rearranged your life around a single household vehicle, you were still deprived of your property for the full period.

The most common misconception

Drivers routinely assume that not renting a car means there is nothing to claim. The loss is the deprivation of use itself, not the receipt from a rental counter. Whether that argument gets paid depends on your documentation, the carrier, and the facts of your situation, but declining to make the argument guarantees the answer is no.

Three Separate Losses From One Accident

Drivers tend to think of an accident claim as one payment. It is not. Here is how the three property damage components separate out:

Only one of those three ends up in the shop’s account. The other two belong to you, and both are routinely left unclaimed because the adjuster has no obligation to volunteer them.

How the Reasonable Repair Period Gets Decided

Carriers do not simply pay for every day the car was at the shop. The standard they apply is the period reasonably necessary to complete the repair, which becomes the fight when parts are delayed.

An insurer will argue that a shop’s scheduling backlog or a delay caused by waiting on supplement approval is not their responsibility. A well documented file pushes back on that. What tends to move the number:

• The shop’s dated repair plan and supplement history. This shows when work was authorized and when it actually started.
• Written parts order records showing backorder dates. A backordered part with a documented order date is very different from a shop that simply took its time.
• The date the vehicle was delivered and the date it was released. Basic, and frequently missing from the file.
• Correspondence showing delays in adjuster approval. If a supplement sat unapproved for eleven days, that is not a shop delay.
• A reasonable daily rate for a comparable vehicle. Comparable means similar class and utility, not the cheapest economy car on the lot.

The same discipline that supports a value loss claim supports this one. A file built to prove and maximize a diminished value claim already contains most of what a loss of use argument needs.

North Carolina and South Carolina Differences

North Carolina

North Carolina applies contributory negligence, which is unforgiving. If any share of fault is assigned to you, recovery from the other driver’s liability carrier can be barred entirely, and that applies to loss of use exactly as it applies to a diminished value claim in North Carolina. Establish clean fault first, then pursue the components.

South Carolina

South Carolina applies modified comparative fault. If you were less than 51% responsible you can pursue the claim, with the award reduced by your assigned share. A 15% fault assignment on a documented $1,500 loss of use figure leaves $1,275 recoverable.

In both states, if you are dealing with a rental vehicle rather than your own car, the mechanics change again. We covered that scenario in our guide to how rental companies handle diminished value claims.

When the Delay Turns Into a Total Loss

There is a second outcome worth watching for. Rising parts costs and calibration requirements are pushing more damaged vehicles across the total loss threshold instead of into the repair stream. A car that sat waiting on parts for a month can end up written off after a supplement reveals more damage.

If that happens, the loss of use period does not vanish. You were still deprived of the vehicle while the carrier decided. The claim shifts, though, and the central fight becomes the actual cash value of the vehicle rather than the repair. Our sister resource on how insurers calculate total loss value covers how those numbers get built and where they go wrong.

What to Do Starting Today

• Log the date your vehicle went in and the date it comes out. Photograph the intake paperwork.
• Ask the shop in writing for parts order dates and backorder confirmations. Request them as they happen, not at the end.
• Keep every rental receipt, and note the days you had no vehicle at all. Both matter, for different reasons.
• Put your loss of use position to the adjuster in writing. A verbal request that was never documented is a request that never happened.
• Handle the value loss claim in the same file. The repair invoice, the photos, and the timeline that support one support the other.

Both claims run against the same statute of limitations, which is generally three years for property damage in North Carolina and South Carolina. Practically speaking, the file is strongest while the shop still has the records and the market comparables are close to the date of loss.

One Accident, More Than One Loss

Most Carolina drivers recover the repair and leave the rest on the table. Get a free quote and find out what the full claim is worth. Get Your Free Quote

Download this guide as a PDF

Take the documentation checklist with you to the body shop. Download the PDF

Frequently Asked Questions

What is the difference between loss of use and rental reimbursement?

Rental reimbursement is a coverage you bought on your own policy, with a daily cap and a total limit. Loss of use is a category of damages owed by the at-fault party for depriving you of your vehicle during the period reasonably required to repair it. They can overlap, but one is a purchased benefit and the other is a recoverable loss.

Can I claim loss of use if I never rented a car?

The loss is being deprived of the use of your property, not the rental receipt. Drivers who borrowed a vehicle or went without one were still deprived for the full repair period. Whether a given carrier pays that depends on your documentation and the facts of your situation, but not raising it guarantees you receive nothing for it.

How many days will an insurer pay for?

Carriers apply the period reasonably necessary to complete the repair, not simply the total time the car spent at the shop. Documented parts backorder dates, the dated repair plan, and any delay in supplement approval are what shift that number in your favor.

Does a loss of use claim affect my diminished value claim?

They are separate components of the same property damage claim and pursuing one does not reduce the other. They rely on overlapping evidence, which is why it makes sense to build a single, well organized file covering repair records, the timeline, and the market value loss.

Can I still claim loss of use if my car was declared a total loss?

You were deprived of the vehicle while the carrier evaluated it, so the period does not simply vanish. The claim changes shape though, because the central issue becomes the actual cash value of the vehicle rather than the repair timeline.

Does contributory negligence in North Carolina apply to loss of use?

Yes. North Carolina’s contributory negligence rule applies to the property damage claim as a whole. If fault is assigned to you, recovery from the other driver’s carrier can be barred, and that affects loss of use and diminished value alike. Confirm how fault was recorded before building a strategy around either one.

The post Parts Delays and Loss of Use: The Second Check Carolina Drivers Almost Never Ask For first appeared on Diminished Value Carolina.

What ADAS Actually Is and Why It Changes the Repair Equation

ADAS stands for Advanced Driver Assistance Systems. It is the umbrella term for the radar, camera, ultrasonic, and lidar-based technologies built into most vehicles sold after 2018: automatic emergency braking, lane departure warnings, blind spot monitoring, adaptive cruise control, rear cross-traffic alerts, and parking assistance, among others.

These systems depend on sensors mounted in specific locations with extreme precision. A camera behind the rearview mirror must point at a calibrated angle. A radar behind the front bumper must be aligned within fractions of a degree. When a collision deforms any part of the vehicle structure near these sensors, that precision is gone. It does not come back just because the body panel was straightened or replaced.

A vehicle that received a new bumper cover after a rear-end collision but was never recalibrated for its backup camera and cross-traffic radar is not fully repaired. It is a liability on four wheels, and the market knows it.

The Three Types of ADAS Calibration Repairs

Not every shop handles ADAS recalibration the same way. Understanding the difference matters both for safety and for your diminished value claim.

When a shop performs calibration correctly and documents it, that record becomes part of your repair history. When calibration is skipped, performed incorrectly, or left undocumented, the vehicle history is incomplete and buyers price that uncertainty into their offers.

Why ADAS History Amplifies Diminished Value

Diminished value is the permanent reduction in a vehicle’s market value that results from its accident history, even after repairs are complete. In NC and SC, drivers whose vehicles were hit by an at-fault party have the right to pursue that loss from the other driver’s liability coverage. What most people do not realize is that ADAS involvement in a repair increases that loss in ways the standard insurer formula does not capture.

Buyer Psychology Around Sensor Systems

When a sophisticated buyer sees ADAS repairs on a vehicle history report, they are not just looking at a line item. They are asking questions that have no easy answers from the report itself: Was the calibration done at a factory-authorized facility? Were OEM sensors used or aftermarket replacements? Was the calibration verified with a scan tool output matching manufacturer specs? Was there any bracket deformation that could affect long-term sensor alignment?

None of those answers appear in a standard vehicle history report. That ambiguity alone is worth money to a cautious buyer, and they will negotiate to reflect it.

The Insurance Company’s Standard Approach Misses This

Insurers use valuation tools like CCC One and Mitchell to estimate diminished value. Those platforms are built on broad depreciation models and comparable sales data. They are not designed to account for the specific market penalty that ADAS-related repairs carry in 2026, particularly on vehicles where the buyer pool is more sophisticated: late-model SUVs, trucks, and luxury sedans.

The result is a settlement offer that applies a generic percentage to the repair cost without reflecting what a real buyer in Charlotte, Raleigh, or Greenville will actually pay when ADAS calibration appears in the repair history.

NC and SC Fault Rules and How They Apply Here

The same fault rules that govern standard diminished value claims apply when ADAS repairs are involved. North Carolina’s contributory negligence standard means that if you had any share of fault in the accident, your third-party claim is at serious risk. South Carolina’s modified comparative fault system allows recovery as long as you were less than 51% at fault, with a proportional reduction applied to your recovery.

For a full breakdown of how fault assignment works in both states, the guide on diminished value claims in the Carolinas in 2026 covers the current legal framework and what it means for your situation.

If the accident was not your fault and your vehicle needed any ADAS repair or recalibration, you have a stronger diminished value claim than the standard insurer formula will produce. Document everything before you accept a settlement.

What to Document When ADAS Repairs Are Involved

The strength of your diminished value claim depends on the paper trail. ADAS-related claims require more specific documentation than a typical panel replacement, and the gap between a well-documented file and a vague one directly affects the settlement number.

• The complete repair order. Every sensor replaced, every calibration performed, and the method used (static, dynamic, or both) should appear in line-item detail. If your shop handed you a summary invoice without itemization, request the full work order.
• Calibration verification reports. Reputable shops that perform ADAS calibration will have a printed or digital scan tool output showing pre- and post-calibration values. This proves the work was done to spec, not just noted on the invoice.
• OEM vs. aftermarket notation. If your insurer authorized aftermarket sensors instead of OEM, document which parts were used. That distinction matters directly for resale value.
• Manufacturer service bulletins. Some manufacturers issue specific procedures for post-collision ADAS recalibration. If your vehicle has one and the shop followed it, include that documentation in your file.
• An independent appraisal. A general repair invoice is not a valuation. A professional appraisal translates the repair history into a specific market value loss figure you can put in front of an adjuster.

For more on how to structure your evidence before engaging with the insurer, the guide on how to prove and maximize a diminished value claim in the Carolinas walks through the full process.

Which Vehicles Are Most Affected

Not every ADAS-equipped vehicle carries the same market penalty after a collision. The loss is most pronounced where buyer expectations are highest and the technology is most complex.

• Late-model trucks and SUVs. The segment with the most ADAS hardware and the most buyer scrutiny in the Carolina market. A 2022 or newer F-150, RAM 1500, or Silverado with rear collision damage and camera or radar recalibration in its history will face meaningful price resistance from informed buyers.
• Luxury and near-luxury sedans and crossovers. Buyers in this segment are more research-oriented and more likely to pull a detailed vehicle history before negotiating.
• EVs and hybrids. ADAS systems on electric vehicles are often more deeply integrated with the vehicle’s primary control systems. Repair complexity is higher, documentation expectations from buyers are greater, and the pool of qualified repair shops is narrower.
• Any vehicle with a front-end collision requiring windshield replacement. Virtually every vehicle with a forward-facing camera requires full static recalibration after windshield replacement. This is a frequent repair that is frequently under-documented.

For trucks and SUVs specifically, the breakdown on why trucks and SUVs lose more to diminished value after an accident in NC and SC covers the segment-level data in detail.

What a Professional Appraisal Adds to an ADAS Claim

An independent appraiser evaluating an ADAS-involved vehicle is not just running a comparable sales analysis. They are accounting for the specific market discount that buyers apply to vehicles with complex electronic repair histories in the current Carolina used car market.

The difference between a generic insurer formula and a professional appraisal on an ADAS claim is not a rounding error. On a $35,000 vehicle with documented radar and camera recalibration after a moderate rear-end collision, the gap between what an insurer formula produces and what a real buyer will actually pay can be $3,000 to $6,000 or more. That is money the insurer is counting on you not knowing to claim.

The diminished value calculator gives you a baseline estimate before you engage with the adjuster. It is not a substitute for a full appraisal, but it tells you whether the number is worth pursuing and what range to expect.

Your ADAS Repair May Be Worth More Than the Insurer Offered

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Frequently Asked Questions

Does ADAS recalibration automatically increase my diminished value claim?

Not automatically, but it strengthens it. ADAS recalibration in your repair history signals to potential buyers that the vehicle sustained damage to sensor-critical areas. That uncertainty carries a real market price. A professional appraisal quantifies the loss. Without one, the insurer will apply a generic formula that ignores the ADAS factor entirely.

What if the repair shop says the ADAS was calibrated but has no documentation?

Verbal confirmation is not enough. Request the scan tool output or calibration verification report in writing before you accept the vehicle back. If the shop cannot produce it, the calibration cannot be confirmed for any future buyer or insurer, which itself becomes a relevant factor in your diminished value claim.

Can I still file a diminished value claim if the accident happened several months ago?

Yes. Both NC and SC allow three years from the date of the accident to file a property damage claim. However, the sooner you file, the stronger the evidence. Repair records are easier to obtain, market comparables are more current, and the connection between the accident and the value loss is cleaner to document.

Does it matter if aftermarket sensors were used instead of OEM?

It matters significantly. OEM sensors are manufactured to exact factory specifications. Aftermarket sensors vary in quality and are viewed skeptically by sophisticated buyers, particularly on newer or higher-value vehicles. If your insurer authorized aftermarket parts, document it. That is a legitimate element of your diminished value claim.

What if my insurer says the ADAS was repaired properly and denies the diminished value?

A proper repair does not eliminate diminished value. The accident remains on the vehicle’s history regardless of repair quality. The market discounts vehicles with accident history because of the uncertainty involved, not just the severity of the damage. An independent appraisal is your primary tool for challenging a denial based on repair quality arguments.

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