⚠️ GM OEM Passenger Seat Occupant Classification System (OCS) — Module + Sensor Mat Set | 2022 GMC Acadia | GM# 84731584 + 13522693 | Airbag SRS | Used

Used OEM passenger seat occupant classification system removed as a complete set from a 2022 GMC Acadia (VIN: 1GKKNXLSXNZ153086). Includes both components:

• OCS Control Module — GM# 84731584: The electronic controller that processes occupant detection signals and communicates with the airbag control module. Black housing with wiring pigtail. Made in Mexico.
• Seat Occupant Sensor Mat — GM# 13522693: Flat rectangular pad that installs under the passenger seat cushion foam to detect occupant presence and weight. Includes two black foam side strips and wiring connector. Made in Mexico.

Together these two components form the complete OCS system that determines whether the passenger airbag should deploy. Both were removed from the same running vehicle and are sold as a matched set.

⚠️ SAFETY NOTICE — READ BEFORE PURCHASING: These are safety-critical SRS/airbag system components. The OCS system directly controls passenger airbag deployment. Replacement requires dealer programming and recalibration using GM GDS2 or Tech 2 scan tools per GM Service Information. Incorrect installation or failure to recalibrate will result in airbag system faults and may prevent proper airbag deployment in a collision. Sold for use by qualified technicians only.

⚙️ What's Included

• GM# 84731584 — OCS Control Module (electronic controller, wiring pigtail)
• GM# 13522693 — Seat Occupant Sensor Mat (flat pad, two foam side strips, wiring connector)

📐 Specifications

• GM Part Numbers: 84731584 (module) | 13522693 (sensor mat)
• Module References: 811839336 | 8170200000000X | 28681504
• Mat References: 588156823 | 12018477A | 4211100000000X
• System: Inflatable Restraint / SRS — Passenger Occupant Classification
• Position: Front Passenger Seat
• Origin: Made in Mexico (both)
• Requires Dealer Recalibration: Yes — GM GDS2 / Tech 2
• Donor Vehicle: 2022 GMC Acadia, VIN 1GKKNXLSXNZ153086
• Condition: Used OEM — removed from running vehicle

✅ Vehicle Fitment

• 2022 GMC Acadia — Confirmed donor vehicle
• Likely also fits: 2017–2022 GMC Acadia — verify both part numbers against your components before ordering
• May also fit: 2018–2022 Buick Enclave, Cadillac XT5/XT6 — verify VIN
• ⚠️ Requires GM dealer programming/calibration after installation. Verify fitment with VIN. A failed sensor mat is the most common cause of a passenger airbag warning light on these vehicles.

🔧 Installation Notes

• Sensor mat installs under front passenger seat cushion foam — seat removal and disassembly required
• OCS module mounts to seat frame; connects to seat harness
• Recalibration with GM GDS2 required after installation

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