Practical playbooks for
automotive supplier quality.
Written from the plant floor. No theory, no fluff. The exact sequences IDS runs for Tier 1, 2, and 3 suppliers inside GM Spring Hill, Ford, Stellantis, and Tier 1 facilities across North America.
When Your OEM Plant Calls About a Quality Concern: The First Hour Playbook
The first hour after an OEM plant raises a quality concern decides whether you keep the program, lose the program, or end up in controlled shipping. Here's the exact playbook IDS uses inside GM, Ford, Stellantis, and Tier 1 facilities.
Controlled Shipping Level 2 (CS2): How Long It Lasts and How to Exit
Controlled Shipping Level 2 is the most operationally intense window in a Tier 1 supplier's year. Direct cost impact runs high, customer relationship damage runs longer. Here's the full breakdown of the structure, duration, and the exit playbook that actually works.
PPAP Warrant Signoff Failed? Here's What Top Suppliers Do Next
Your PPAP came back rejected at signoff. Production Part Approval Process failures have a tight recovery window - 48 hours of disciplined response usually saves the program. Slow response usually loses it. Here's what works.
GM SQ Scorecard: The 6 Metrics That Actually Move Your Supplier Rating
GM's SQ scorecard determines sourcing decisions, program reviews, and supplier development priorities. Most suppliers obsess over PPM and miss the five other metrics that quietly move the rating. Here's what each metric actually weighs and how to move it.
Cadillac Lyriq Supplier Quality Requirements: 2026 Tier 1 Survival Guide
The Cadillac Lyriq is GM's first production Ultium-platform luxury EV, built at Spring Hill Manufacturing. Supplier quality requirements differ meaningfully from traditional ICE Cadillac programs. Here's what Tier 1 suppliers actually need to know going into 2026.
8D Corrective Action Reports That Customers Actually Accept (With Real Examples)
Most rejected 8D reports are rejected because the customer SQE can't verify the corrective action without picking up the phone. The 8D that gets approved first time is the one that answers the customer's verification question before they ask it. Here's how.
Containment, Sort, and Rework: What Tier 1 Suppliers Actually Manage
The containment invoice your CFO sees is rarely more than a fraction of the actual exposure. Customer chargebacks, premium freight, internal labor, scrap, engineering time, and lost program opportunities consistently add multiples on top of the visible number. Here's the real management picture.
Automotive Launch Readiness Checklist for Tier 2 Suppliers (PPAP to SOP)
The supplier that hits SOP without incident isn't the smartest. They're the one who treated PPAP as the START of launch readiness, not the end. Here's the 18-week checklist that consistently produces clean launches at GM, Ford, and Stellantis programs.
Ultium Cells Supplier Qualification: 2026 Process Updates for Battery Component Suppliers
Ultium Cells qualification is not battery quality plus EV requirements. It's a new system that suppliers used to ICE qualification consistently underestimate. Here's what the 2026 process actually looks like at the Spring Hill facility.
Resident Quality Liaison vs Supplier Development Engineer: When to Hire Which
Suppliers that confuse resident quality liaison and supplier development engineer roles consistently underinvest in both. The roles look similar on a job description and operate completely differently in production. Here's the comparison.
Automotive Quality Liaison Engagement Models: How to Choose the Right Structure in 2026
The most consequential decision Tier 1 and Tier 2 quality managers make when engaging a supplier representation partner is not who to hire, it is how to structure the engagement. This is the 2026 guide to hourly emergency, project-defined, and resident retainer models.
Automotive Quality Liaison in Spring Hill TN: 2026 Guide for GM and Ultium Cells Suppliers
GM Spring Hill Manufacturing and the adjacent Ultium Cells facility have made Middle Tennessee the highest-density automotive supplier ecosystem in the Southern Auto Belt. This is the complete 2026 guide to how automotive quality liaison work operates in Spring Hill.
OEM Plant Quality Emergency? 24/7 Automotive Supplier Response Guide for 2026
OEM plant quality emergencies do not schedule themselves around business hours. This is the 2026 field guide to 24/7 automotive supplier response covering the first 90 minutes, coverage windows, and how to prepare a callable emergency file before the call comes.
GM Spring Hill Supplier Requirements 2026: Tier 1 and Tier 2 Compliance Playbook
GM Spring Hill Manufacturing produces Cadillac XT5, XT6, GMC Acadia, and Cadillac Lyriq. Supplier requirements at this facility carry Cadillac-tier fit and finish expectations plus elevated Ultium platform scope. This is the 2026 compliance playbook.
How to Choose an Automotive Quality Liaison Partner in 2026: 12-Point Vetting Checklist
Choosing the wrong quality liaison partner costs suppliers scorecard damage, program losses, and internal credibility with the customer. Choosing the right partner protects the relationship for years. Here is the 12-point vetting checklist Tier 1 and Tier 2 suppliers should use in 2026.