General Motors
Automotive · Last assessed Jun 9, 2026
Read the scope and sources before applying this finding.
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The letter is the published assessment. Missing factor evidence is labeled; it does not become a zero.
Why this grade
Legacy OEM with a deep parts and service-information ecosystem: ACDelco/GM service information is subscription-available to independents, OEM parts flow through ACDelco plus a large aftermarket, and GM is bound by the July 2023 ASA/SCRS/Auto Innovators commitment that 'independent repair facilities shall have access to the same diagnostic and repair information that auto manufacturers make available to authorized dealer networks.' Drags: GM (via the Alliance for Automotive Innovation) spent years challenging Massachusetts' telematics R2R expansion, and in December 2024 U.S. senators publicly called automakers' R2R opposition 'hypocritical,' singling out the telematics/data-control posture (OnStar). Strong parts/info access but an adversarial telematics record keeps software-lock and friendliness scores down.
Sources
Methodology & scope
Five dimensions are scored 0–100 and weighted equally: parts availability, schematic access, repairability, OEM pricing and software freedom. The letter scale is A (90–100), B (80–89), C (70–79), D (60–69), F (below 60).
This assessment was last assessed Jun 9, 2026. Its assessment scope is Automotive and is not a claim about every device the maker ships.
The record does not supply a methodology version identifier. Read the published method, limitations and version history ↗
Manufacturer response
No manufacturer response is recorded for this assessment.
What makes up the grade
- Parts Availability
- 80 / 100
- Schematic Access
- 75 / 100
- Repairability
- 73 / 100
- OEM Pricing
- 70 / 100
- Software Freedom
- 64 / 100
Grade history
No grade changes are recorded.
Corrections
Spotted an error, or have evidence we should weigh? Corrections are reviewed on the record.
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