Stellantis is one of the world's largest automotive OEMs, formed by the 2021 merger of Fiat Chrysler Automobiles (FCA) and Groupe PSA. North American production concentrates in metro Detroit and Ontario. Ram 1500 and Ram 1500 Classic run at Sterling Heights Assembly and Warren Truck. Jeep Grand Cherokee runs at the Detroit Assembly Complex (Mack Avenue). Dodge Durango runs at the Detroit Assembly Complex (Jefferson North). Chrysler Pacifica runs at Stellantis Windsor Assembly. Tier 1 and Tier 2 suppliers shipping into these facilities face requirements that span heavy-duty truck durability, Jeep off-road capability, and Chrysler luxury minivan expectations.
This guide covers Tier 1 and Tier 2 supplier requirements at Stellantis metro Detroit plants, the Stellantis quality standards that drive first-submission acceptance, and the common non-conformance patterns that push suppliers into escalation. For scoping calls, contact IDS at 905-260-2388.
Facility Overview: Stellantis Metro Detroit + Ontario Plants
Understanding the plant and program mix matters because compliance expectations vary by brand. Full local coverage context is on our Detroit location page and Oshawa location page.
Active Metro Detroit and Ontario Programs
- Stellantis Sterling Heights Assembly Plant (SHAP): Ram 1500 (current-generation, DT platform), high-volume light-duty truck production
- Stellantis Warren Truck Assembly Plant (WTAP): Ram 1500 Classic (previous-generation, DS platform), continued high-volume production
- Stellantis Detroit Assembly Complex - Mack Avenue: Jeep Grand Cherokee, Jeep Grand Cherokee L (three-row variant)
- Stellantis Detroit Assembly Complex - Jefferson North: Dodge Durango, high-volume full-size SUV production
- Stellantis Windsor Assembly (Ontario): Chrysler Pacifica (including plug-in hybrid), Chrysler Voyager, luxury minivan positioning
- Stellantis Brampton Assembly (Ontario): transitioning to STLA Large platform for upcoming EV programs
- Stellantis Toledo North (Ohio): Jeep Wrangler and Jeep Gladiator, off-road heritage programs
Stellantis Quality Program Baseline
Stellantis inherited the Chrysler supplier quality framework from FCA and continues to operate customer-specific requirements alongside IATF 16949 baseline expectations. Suppliers without documented compliance across both layers face limited program access and elevated audit scrutiny.
1. Quality System Baseline
IATF 16949 certification is universal baseline. Stellantis customer-specific requirements add expectations including documented use of Stellantis Global 8D format, adherence to TSV (Tracking System for Verification) response cycles, Supplier Quality Assurance (SQA) audit participation, and demonstrated performance against Stellantis supplier scorecard metrics accessed through eSupplier Connect.
2. PPAP Requirements at Stellantis Plants
PPAP Level 3 is standard for most Stellantis programs. Level 4 or 5 may apply to safety-critical components, first-of-kind applications, or Chrysler Pacifica luxury interior categories. Cpk and Ppk minimums are typically 1.33 for significant characteristics and 1.67 for critical characteristics. Program-specific customer requirements add durability testing scope for Ram truck heavy-payload duty, Jeep off-road capability (water fording, articulation, thermal management), and Chrysler Pacifica NVH refinement. For rejected PPAP recovery, see the PPAP recovery playbook.
3. TSV Response and Global 8D
Stellantis TSV (Tracking System for Verification) tracks supplier quality events with defined response-cycle expectations. Well-prepared 8D reports in Stellantis Global 8D format pass SQA audit review; poorly prepared 8Ds trigger repeat audits and scorecard impact. See the full 8D standard in 8D reports customers actually accept.
4. Launch Support Expectations
Stellantis expects Tier 1 suppliers to provide on-site presence during PPAP through SOP and the first 30 days of production. Containment activation, daily customer communication, and issue triage are baseline expectations. Full launch readiness detail in Automotive Launch Readiness Checklist.
Tier 2 Supplier Requirements
Tier 2 suppliers shipping through Tier 1s to Stellantis plants face flow-down requirements that vary by Tier 1 customer. Common flow-down expectations include:
- IATF 16949 certification (flowed down universally through Tier 1 supplier quality frameworks)
- PPAP submission to the Tier 1 customer following Stellantis PPAP standards
- Compliance with Stellantis global material safety and sustainability requirements
- Traceability documentation matching Stellantis supply chain expectations
- Capacity commitments through Tier 1 contracts with Stellantis volume exposure
- Corrective action responsiveness measured against Tier 1 scorecards that roll into Stellantis SQA metrics
Tier 2 suppliers without direct Stellantis visibility often engage IDS as the plant-facing representative when quality events escalate. See Automotive Quality Liaison Services.
Program-Specific Elevated Requirements
Ram Truck Heavy-Payload Durability
Ram 1500 and Ram 1500 Classic face duty-cycle expectations that scale with heavy-payload service, towing profiles, and commercial fleet applications. Frame, driveline, suspension, and brake components require testing profiles tuned for the actual Ram customer use pattern, not just general light-duty pickup baselines. Suppliers moving between Ram 1500 programs at Sterling Heights and Warren Truck also encounter platform-specific PPAP boundary sample expectations that vary despite similar component numbers.
Jeep Off-Road Capability Testing
Jeep Grand Cherokee, Grand Cherokee L, Wrangler, and Gladiator programs carry elevated off-road capability expectations. Components in cooling systems, driveline, thermal management, sealing, and low-voltage electrical face testing profiles that would not apply on on-road programs. Water fording testing, articulation extremes, thermal cycling in extreme conditions, and sealing under sustained water and mud exposure are baseline requirements for many component categories.
Dodge Durango Full-Size SUV Consistency
Dodge Durango is high-volume full-size SUV production sharing platform elements with Jeep Grand Cherokee. Consistency across long production runs matters. PPM performance drives program share decisions on future Durango variants and cross-sharing to Jeep programs on the same platform.
Chrysler Pacifica Luxury Minivan Positioning
Chrysler Pacifica is positioned as Stellantis's flagship luxury minivan program with elevated NVH, interior refinement, and perceived quality expectations. Interior trim, audio integration, HVAC integration, and second and third row occupant experience components face elevated subjective scoring that would not apply on equivalent components in Dodge Grand Caravan legacy applications.
Common Non-Compliance Patterns at Stellantis Plants
The rejections and escalations IDS sees most frequently at Stellantis metro Detroit plants fall into recurring patterns. Awareness of these before you enter production dramatically improves supplier outcomes.
- TSV response cycle miss. Stellantis TSV response expectations are aggressive. Suppliers without on-site presence systematically miss the response window and see SQA scorecard impact. Same-day acknowledgment and 24 to 48 hour on-site presence for material events is the effective standard.
- Ram heavy-payload durability surprise. Suppliers experienced with light-truck programs at Ford or GM often underestimate Ram customer duty-cycle intensity, particularly on commercial fleet variants and heavy-tow packages.
- Jeep off-road testing gaps. Suppliers new to Jeep programs frequently underestimate water fording, articulation extreme, and thermal cycling requirements. Component qualification packages that pass on other platforms fail on Jeep applications.
- Chrysler Pacifica luxury minivan NVH surprise. Interior suppliers moving from Dodge Grand Caravan legacy experience to Pacifica programs face elevated subjective scoring even when part numbers are unchanged.
- PPAP documentation completeness for Stellantis customer-specific requirements. Most first-submission rejections are documentation issues around Stellantis CSRs. Suppliers experienced with GM SPQS or Ford Q1 often miss Stellantis-specific requirements without a dedicated CSR review before submission.
- Weak 8D corrective action reports. D5 and D6 disciplines are the most common Stellantis SQA rejection points. See 8D reports customers actually accept.
- Under-scoped containment on escapes. When defects surface at Stellantis plants, containment scope must include supplier dock, in-transit, and Stellantis plant receiving. Missing any layer produces re-escapes. See containment management.
How Suppliers Actually Improve Stellantis Performance
Sustained supplier performance at Stellantis metro Detroit plants comes from four practices most often missing from suppliers who struggle:
- Regular on-site presence, either through internal SQEs or outsourced quality liaison. See Resident Liaison vs SDE comparison.
- Fast TSV response cycles. Same-day acknowledgment, on-site presence within 24 to 48 hours for material events, closure within Stellantis SQA target windows.
- Clean 8D reports following the Stellantis Global 8D format with meaningful capability data in D6.
- Proactive customer communication during PPAP windows and launches to prevent surprise rejections tied to Stellantis CSRs and brand-specific requirements.
Detroit + Ontario Coverage and Response
IDS treats Detroit and Southern Ontario as core coverage corridors with rapid on-site response, established plant relationships across Stellantis Warren Truck, Sterling Heights, Detroit Assembly Complex, and Windsor Assembly, and full protocol training on Stellantis TSV processes. Full details of coverage, response times, and local capabilities are on the Detroit location page and Oshawa location page.