2023 GMC Terrain transmission control module — Seat, (below LH seat) price snapshot
- Low
- $41
- Average
- $134
- High
- $232

Year & trim-specific price guide
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
A used 2023 GMC Terrain transmission control module (Seat, (below LH seat)) costs $41 to $232, with a median asking price of $125. Based on 49 priced salvage yard listings across the US, updated Sep 19, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $41–$232 | 36 | |
| Grade BStandard used | $51–$232 | 12 | |
| Grade XUngraded | $53–$53 | 1 |
Median by grade
Median asking price by seller-reported condition grade · $41–$232 overall range
Trim-specific context
This pricing covers the Seat, (below LH seat) variant of the 2023 GMC Terrain transmission control module, based on 49 priced listings. Its $125 median is 11% below the 2023 GMC Terrain transmission control module overall median of $140.
There are 20 other transmission control module variants available for the 2023 GMC Terrain.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
Same year, other trims
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Common questions
Based on 49 priced salvage-yard listings, a used 2023 GMC Terrain transmission control module in the Seat, (below LH seat) variant lists between $41 and $232, with a median asking price of $125.
The Seat, (below LH seat) variant appears in model years 2018, 2019, 2023, 2024. Prices and availability may differ by year.