2021 GMC Sierra 1500 transmission control module — Communication, (telematics, OnStar, LH dash), ID 84960632 price snapshot
- Low
- $60
- Average
- $103
- High
- $260

Year & trim-specific price guide
A used 2021 GMC Sierra 1500 transmission control module (Communication, (telematics, OnStar, LH dash), ID 84960632) costs $60 to $260, with a median asking price of $76. Based on 15 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 | $65–$260 | 10 | |
| Grade BStandard used | $60–$71 | 3 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $75–$100 | 2 |
Median by grade
Median asking price by seller-reported condition grade · $60–$260 overall range
Trim-specific context
This pricing covers the Communication, (telematics, OnStar, LH dash), ID 84960632 variant of the 2021 GMC Sierra 1500 transmission control module, based on 15 priced listings. Its $76 median is 43% 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 year, other trims
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Common questions
Based on 15 priced salvage-yard listings, a used 2021 GMC Sierra 1500 transmission control module in the Communication, (telematics, OnStar, LH dash), ID 84960632 variant lists between $60 and $260, with a median asking price of $76.
In our current dataset, the Communication, (telematics, OnStar, LH dash), ID 84960632 variant appears only for the 2021 model year.