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For automotive Tier-2 and Tier-3 suppliers

Catch the DFMEA errors Tier-1 auditors flag in your PPAP submissions

IATF 16949 audits and PPAP submissions surface the same DFMEA failures every time: Tier-2 supplier-blame causes, wrong AIAG-VDA Action Priority values, missing Prevention Controls on Sev-9/10 rows. Specwarden catches all three — automatically, in under 60 seconds.

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Specwarden DFMEA review: catches empty Prevention Controls, vague descriptors, and Tier-2 supplier-blame cause patterns automatically.SSpecwarden ReviewMAJORRow 1 · Prevention ControlEmpty Prevention ControlSev 10 row — no design control specifiedSSpecwarden ReviewMAJORRow 2 · Failure ModeVague descriptor: 'Bad'provides no testable criterionSSpecwarden ReviewMAJORRow 3 · CauseSupplier-blame cause patternnames upstream, not design-spec gap

How it works

Upload your DFMEA

Drop in your spreadsheet — .xlsx, .xls, .csv, or .docx. Specwarden detects AIAG-RPN or AIAG-VDA format automatically. No configuration.

Review runs in under 60 seconds

7 deterministic rule checks run first, then Claude Sonnet reads every row for supplier-blame causes, vague language, and missing rationale.

Get a report you can act on

Download a PDF or Word report with every finding ranked by severity and a specific fix recommendation. Ready to attach to your design package.

Why Specwarden for automotive Tier-2

D-001b

supplier-blame detection — dedicated check, not a generic scan

Specwarden's supplier-blame check is grounded in AIAG-VDA Handbook §1.4.1 and §2.4. It understands the semantic difference between a design-spec gap and a supplier execution failure — not just keyword matching.

2027

OEM migration mandate deadline — verify before your audit

GM, Ford, Stellantis, and Toyota North America have staggered AIAG-VDA submission deadlines through 2027. Specwarden verifies migrated AP values before your OEM's auditor finds the errors.

Zero

files stored server-side — ITAR and IP safe

Your DFMEA is parsed inside the request that uploaded it, then immediately discarded. No cloud storage, no training data, no third-party data sharing. Findings live in your browser and nowhere else.

What Specwarden catches

Tier-2 supplier-blame detection — the #1 PPAP audit failure

A DFMEA cause that blames the upstream supplier instead of naming a design-specification gap is the single most common PPAP review failure. Specwarden's D-001b check catches this pattern on every row — including rows where no one is looking for it.

AIAG-VDA Action Priority verification during migration

Major Tier-1s are enforcing AIAG-VDA submission requirements through 2027. Specwarden verifies every AP assignment against the §2.5.10 lookup table and flags rows where migration introduced wrong H/M/L values.

Missing Prevention Controls on Sev-9/10 rows

High-severity failure modes with empty or vague Prevention Controls are an automatic red flag in any IATF 16949 audit. Specwarden flags every Sev 9-10 row missing a specific, verifiable prevention action.

Post-action closed-loop validation (AIAG-VDA §2.6.3)

AIAG-VDA §2.6.3 requires that revised ratings are populated after the target date passes. Specwarden checks that revised S/O/D values are filled in, revised AP math is correct, and Severity hasn't been silently reduced after a recommended action.

Review-ready in under 60 seconds

Upload your DFMEA spreadsheet — .xlsx, .xls, or .csv. Specwarden detects whether you're using AIAG-VDA or AIAG FMEA-4 format and runs the full review automatically. No configuration, no queue.

Built for engineering teams reviewing high-stakes technical documents.

Workflow proof

Reviews engineering documents against risk and compliance criteria

Use-case proof

Designed for FMEA, specs, quality checks, and design review workflows

Beta proof

Private beta feedback from technical reviewers and operators

Questions from automotive suppliers

Does my Tier-1 customer require AIAG-VDA format?▾
Check your Customer-Specific Requirements (CSR) document from your OEM. GM, Ford, Stellantis, and Toyota North America have staggered AIAG-VDA submission mandates through 2027. If you're not sure, Specwarden detects which format your current DFMEA uses and flags rows that don't comply with the detected standard.
How does this help with PPAP submissions?▾
PPAP Level 3 and 4 submissions require a customer-approved DFMEA. The most common rejection reason is DFMEA quality — supplier-blame causes, empty prevention controls on high-severity rows, and RPN/AP arithmetic errors. Specwarden catches all three before your submission package goes to the Tier-1 SQE.
Does Specwarden work with the older AIAG FMEA-4 format?▾
Yes. Specwarden auto-detects AIAG FMEA-4 (traditional RPN) vs AIAG-VDA (Action Priority) from your column headers and applies the correct verification logic. You don't need to migrate your format to run a review — and if you're mid-migration, Specwarden will tell you which rows still follow legacy RPN logic.
Will this replace our senior quality engineer?▾
No — it replaces the first 60 minutes of their review. Senior QEs catch judgment calls, cross-system failure chains, and company-specific policy violations that Specwarden doesn't model. Specwarden catches the rule violations and supplier-blame patterns that waste senior reviewer time before the real engineering discussion starts.

Upload your DFMEA — catch the PPAP failures before your Tier-1 auditor does.

Free tier. 30 rows. No card.

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