2021 GMC Sierra 1500 transmission control module — Memory, (under driver seat) price snapshot
- Low
- $50
- Average
- $97
- High
- $241

Year & trim-specific price guide
A used 2021 GMC Sierra 1500 transmission control module (Memory, (under driver seat)) costs $50 to $241, with a median asking price of $95. Based on 50 priced salvage yard listings across the US, updated Aug 24, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $50–$241 | 36 | |
| Grade BStandard used | $50–$241 | 12 | |
| Grade CVisible wear | $60–$60 | 1 | |
| Grade XUngraded | $80–$80 | 1 |
Median by grade
Median asking price by seller-reported condition grade · $50–$241 overall range
Trim-specific context
This pricing covers the Memory, (under driver seat) variant of the 2021 GMC Sierra 1500 transmission control module, based on 50 priced listings. Its $95 median is 29% below the 2021 GMC Sierra 1500 transmission control module overall median of $133.
There are 32 other transmission control module variants available for the 2021 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 50 priced salvage-yard listings, a used 2021 GMC Sierra 1500 transmission control module in the Memory, (under driver seat) variant lists between $50 and $241, with a median asking price of $95.
The Memory, (under driver seat) variant appears in model years 2016, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. Prices and availability may differ by year.