🔧 GM OEM Driver Seat Adjuster Switch — 2010-2025 GM | GM# 85043659 | Left / Driver Side | Whisper Beige Button Cap | Used

Used OEM driver (left) front seat adjuster switch removed from a 2022 GMC Acadia (VIN: 1GKKNXLSXNZ153086). GM part# 85043659 is the current superseding number for the widely-used 25974714 seat switch, fitting an enormous range of GM vehicles from 2010–2025. Flat elongated housing with two oval rocker buttons in Whisper Beige matching the 4KB interior. 8-pin connector with labeled blade terminals. Note: the number embossed into the plastic housing is a mold/tooling reference number — the actual GM service part number is 85043659. Assembled in USA. Condition: Used, good condition.

⚙️ Key Features

• Driver / Left Side Front Seat Adjuster Switch — Controls power seat position (forward/back, height, tilt, recline depending on seat configuration)
• Current Superseding Part — GM# 85043659 replaces/supersedes 25974714 and 86523372
• Whisper Beige / Shale Button Caps — Matches GMC interior color code 4KB (DK Galvanized / Whisper Beige)
• 8-Pin Blade Terminal Connector — Labeled terminals (G, B, H, C, J, D); plug-and-play installation
• Broad GM Fitment — Fits dozens of Chevrolet, GMC, Buick, and Cadillac models 2010–2025
• Assembled in USA

📐 Specifications

• GM Part Number: 85043659
• Supersedes / Replaces: 25974714 | 86523372
• Position: Left / Driver Side / Front
• Button Color: Whisper Beige / Shale — interior color code 4KB
• Connector: 8-pin blade terminal, lettered G/B/H/C/J/D
• Note: Embossed housing number is a mold reference — not the GM service part number
• Origin: Assembled in USA
• Donor Vehicle: 2022 GMC Acadia, VIN 1GKKNXLSXNZ153086
• Condition: Used OEM

✅ Vehicle Fitment — 2010–2025 GM (Driver Side, with Power Seat)

• GMC: Acadia 2017–2023 | Sierra 2500 HD / 3500 HD (with ventilated seat, without massage) | Canyon 2015–2022 | Terrain 2010–2022
• Chevrolet: Equinox 2010–2018 | Malibu 2010–2024 | Camaro 2010–2015 | Traverse 2018–2019 | Cruze 2016–2018 | Trax 2024–2025
• Buick: Enclave 2018–2019 | Encore GX | Regal / Regal Sportback / Regal TourX 2011–2019 | LaCrosse 2010–2018 | Cascada 2016–2018 | Envision 2016–2018 | Verano 2016–2017
• Cadillac: SRX 2010–2016
• ⚠️ Button cap color is vehicle-specific. This switch has Whisper Beige / Shale caps (color code 4KB). If your interior is black, gray, or another color you will need to swap the button cap or source a color-matched unit. The switch function is identical — only the cap color differs.
• Verify your seat has a power adjuster with matching connector before purchasing.

🔧 Installation Notes

• Located on the outboard side bolster of the driver's seat
• Disconnect single 8-pin wiring harness connector, release mounting clips, swap switch
• Plug-and-play — no programming required
• Button caps are interchangeable for color matching if needed

🔁 Cross-Reference

• GM 85043659 | Supersedes: 25974714 | 86523372
• Aftermarket cross: 12451497, 1S12377, PSW149

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