Sublet operations on warranty claims are repairs performed by a third party — typically a specialist such as wheel alignment, glass, or paint — that the dealer pays for and bills back through the OEM. Each major OEM sets its own rules for when sublet is allowable, what documentation it requires (third-party invoice plus justification), and how the line is coded. Most sublet rejections are documentation gaps, not eligibility problems.
What “sublet” means in warranty context
Sublet is work your dealership doesn’t perform itself but is still responsible for as part of a warranty repair. You send the vehicle — or the component — to a third-party specialist, they do the work, they invoice you, and you recover that cost through the warranty claim.
The classic example: a warranty steering rack replacement requires a four-wheel alignment afterwards, but your workshop doesn’t have an alignment rig. You drive the car to the alignment shop down the road, they align it, they hand you a $120 invoice. That $120 goes on the warranty claim as a sublet line — not as labour, not as a part.
Three things define a sublet operation, and all three have to be true:
- A third party did the work. Not your technicians, not your workshop.
- You paid for it. The dealer is out of pocket and is seeking reimbursement.
- It’s tied to a warrantable repair. Sublet rides on a qualifying warranty job. You can’t sublet a customer-pay detail and claim it on warranty.
Sublet sits in its own claim category for a reason. The OEM is reimbursing money you paid to someone outside the franchise, so they want to see exactly who you paid, what for, and how much — which is why the documentation bar is higher than for in-house labour.
When sublet is allowable
Sublet is allowable when the work is a necessary part of completing a warranty repair and your dealership genuinely can’t — or by policy isn’t expected to — perform it in-house.
The clearest allowable cases:
- Capability gaps. You don’t own the equipment. Wheel alignment, ADAS calibration on certain marques, glass bonding, paint and panel.
- Specialist work the OEM expects to be outsourced. Some manufacturers explicitly direct certain operations — windscreen replacement, trim or upholstery repair — to approved third-party suppliers.
- Capacity overflow on warranty timelines. Less common, and more tightly scrutinised, but occasionally allowed when in-house capacity would breach a repair-time commitment.
Where it gets contested is the grey zone: work you could do in-house but chose to sublet. If your workshop has an alignment rig and you sublet the alignment anyway, expect the OEM to ask why. The safe rule is that sublet should reflect a real capability or capacity gap, not convenience.
Some OEMs also impose a pre-approval threshold: sublet above a certain dollar value (often a few hundred dollars) needs authorisation before the work is done. Sublet a $900 paint job without pre-approval and the eligibility is fine, but the claim still bounces because you skipped the authorisation step.
Documentation OEMs require for sublet
This is where sublet claims live or die. Even a perfectly eligible sublet operation gets sent back if the paperwork is thin.
The non-negotiable is the third-party supplier’s invoice. It must show:
- Supplier name and ABN
- The vehicle — VIN or registration, ideally both
- A clear description of the work performed
- The amount the dealer actually paid (GST shown separately)
- Invoice date that falls within the repair window
Beyond the invoice, most OEMs want a justification on the claim itself — a short line explaining why the work was sublet and how it connects to the warranty repair. “Four-wheel alignment required following warranty steering rack replacement; no alignment equipment on site” is the entire justification, and it’s enough. The mistake is leaving it blank and assuming the connection is obvious.
| Requirement | Why the OEM wants it | What rejection looks like without it |
|---|---|---|
| Third-party invoice attached | Proves the cost is real and external | ”Sublet line unsupported — no supporting invoice” |
| Supplier ABN on invoice | Confirms a legitimate registered supplier | Sent back for invalid or missing supplier detail |
| VIN / rego on invoice | Ties the sublet to this exact vehicle | ”Cannot match sublet to claim vehicle” |
| Claimed amount = invoice amount | Prevents over-claiming | Adjusted down to invoice value, or rejected |
| Justification narrative | Shows sublet was necessary | ”Sublet justification not provided” |
| Pre-approval (if over threshold) | OEM controls high-value outsourcing | Rejected for missing prior authorisation |
Keep the supplier invoice as a scanned or photographed document attached to the claim, not filed in a drawer. When an auditor reviews a sublet line 30 days later, the invoice has to be one click away or the claim stalls.
Common sublet types and how they’re typically coded
Sublet coding varies by OEM, but the operations that get sublet are remarkably consistent across dealers. The table below covers the common ones and the documentation each typically needs. Treat the coding column as indicative — your DMS and OEM warranty system will have the exact sublet codes.
| Sublet type | When it’s sublet | Documentation needed | Typical coding |
|---|---|---|---|
| Wheel alignment | After steering / suspension warranty repair, no in-house rig | Supplier invoice, alignment printout (before/after) | Sublet labour code, linked to parent op |
| ADAS / camera calibration | Marque-specific calibration not held in-house | Supplier invoice, calibration certificate | Sublet, often with calibration sub-code |
| Glass / windscreen | OEM directs to approved glazier; bonded glass | Supplier invoice, VIN on invoice | Sublet, glass category |
| Paint and panel | Warranty corrosion or paint defect | Supplier invoice, photos of defect + repair | Sublet, paint category |
| Upholstery / trim | Seat or trim defect repaired externally | Supplier invoice, defect photos | Sublet, trim category |
| Towing / recovery | Vehicle immobile due to warrantable fault | Tow invoice, fault link to warranty job | Sublet, towing (often capped) |
| Machining (e.g. drums/rotors) | In-house machining unavailable | Supplier invoice, measurements | Sublet labour code |
A handling markup on these is common industry practice — frequently somewhere in the 5–25% band — but it is entirely OEM- and agreement-specific. Some manufacturers reimburse sublet at net cost with no margin. Never assume a markup is allowed; read it off your current warranty policy manual and apply only what’s stated.
OEM-specific sublet rules — Hyundai, Ford, Toyota differences
The three-part mechanic is universal, but the detail diverges. The examples below illustrate the kinds of differences you’ll encounter — they are not a substitute for the current policy manual, which is the only authority that matters.
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Hyundai. Tends to be specific about sublet justification and matching the claimed amount to the attached invoice to the cent. Alignment following warranty suspension work is a routine, well-understood sublet. Expect scrutiny on whether the work could have been done in-house.
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Ford. Operates with defined sublet categories and is firm on pre-approval thresholds for higher-value sublet. Towing and recovery sublet is often capped at a set amount, and claiming over the cap gets the line adjusted down rather than the whole claim rejected.
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Toyota. Generally expects tight linkage between the sublet line and the parent operation, with the supplier invoice attached. Calibration and alignment after warranty work are familiar sublet types; the emphasis is on the documentation trail proving the sublet was necessary.
The practical takeaway: don’t carry one OEM’s habits across to another. A sublet workflow that sails through with one manufacturer can trip a threshold or a coding rule with the next. The constants are the invoice, the justification, and the amount match — get those three right every time and you’re past most of the differences.
Mistakes that get sublet claims rejected
Most sublet rejections aren’t about whether the work was claimable. They’re about how the line was documented. The recurring offenders:
No third-party invoice attached. The single most common one. The work was done, the dealer paid, but the supplier invoice never made it onto the claim. The line is unsupported and bounces immediately.
Claimed amount doesn’t match the invoice. You paid $132 including GST, you claimed $145 (a rounded-up guess or an unallowed markup). The OEM matches to the invoice and either adjusts the line down or rejects it.
Sublet for work you could do in-house. You own the alignment rig but sublet anyway, with no reason on the claim. The auditor flags it. Either justify the gap specifically or do the work in-house.
Missing justification narrative. The sublet line is correct, the invoice is attached, but there’s no sentence explaining why it was sublet or how it links to the warranty repair. “Justification not provided” is an avoidable rejection.
Skipping pre-approval over the threshold. High-value sublet — paint, major glass — done without the authorisation the OEM requires above a set dollar value. Eligibility is fine; the process step was missed.
Supplier invoice missing the vehicle. A generic invoice with no VIN or rego. The OEM can’t tie the cost to this claim, so it can’t pay it.
Applying a markup the OEM doesn’t allow. Adding a handling percentage on an OEM that reimburses sublet at net cost. The margin gets stripped and the line is queried.
Notice the pattern: every one of these is a documentation or process gap, not a question of whether sublet was the right call. That’s good news — documentation gaps are fixable with a consistent workflow.
Key takeaways
- Sublet is third-party work the dealer pays for and claims back through the OEM — it has its own claim line, distinct from in-house labour and parts.
- Sublet is allowable when there’s a real capability or capacity gap; subletting work you could do in-house is an audit flag unless you justify it.
- The third-party supplier’s invoice is mandatory and must carry the supplier ABN, the vehicle (VIN or rego), the work description, and the exact amount paid.
- A short justification narrative — why the work was sublet, how it links to the warranty repair — closes the most common avoidable rejection.
- Handling markup on sublet is common industry practice (often around 5–25%) but is entirely OEM-specific; some reimburse at net cost with no margin. Read your policy.
- OEMs differ on markup, pre-approval thresholds, and coding — Hyundai, Ford, and Toyota each handle sublet slightly differently, so don’t carry one’s habits to another.
- Almost every sublet rejection is a documentation or process gap, not an eligibility problem — which means a consistent workflow eliminates most of them.
Keep sublet lines and their invoices on the claim
Easy Claimz lets you add a sublet line to a warranty claim with the third-party invoice attached and the justification captured in the same flow — so the documentation an auditor needs is on the claim before it's submitted, not chased down two weeks later.
Request accessEasy Claimz is independent and not affiliated with Hyundai Motor Company, Ford Motor Company, or Toyota Motor Corporation. OEM warranty policies are subject to change — consult your OEM dealer support materials for current requirements.