2025 GMC Sierra 1500 transmission control module — Temperature, (RH under dash), ID 84579089 price snapshot
- Low
- $50
- Average
- $98
- High
- $176

Year & trim-specific price guide
A used 2025 GMC Sierra 1500 transmission control module (Temperature, (RH under dash), ID 84579089) costs $50 to $176, with a median asking price of $105. Based on 46 priced salvage yard listings across the US, updated Aug 29, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $60–$175 | 16 | |
| Grade BStandard used | $60–$176 | 27 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $50–$85 | 3 |
Median by grade
Median asking price by seller-reported condition grade · $50–$176 overall range
Trim-specific context
This pricing covers the Temperature, (RH under dash), ID 84579089 variant of the 2025 GMC Sierra 1500 transmission control module, based on 46 priced listings. Its $105 median is 12% below the 2025 GMC Sierra 1500 transmission control module overall median of $120.
There are 25 other transmission control module variants available for the 2025 GMC Sierra 1500.
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 46 priced salvage-yard listings, a used 2025 GMC Sierra 1500 transmission control module in the Temperature, (RH under dash), ID 84579089 variant lists between $50 and $176, with a median asking price of $105.
The Temperature, (RH under dash), ID 84579089 variant appears in model years 2021, 2022, 2023, 2024, 2025. Prices and availability may differ by year.