2021 GMC Sierra 1500 transmission control module — Communication, (telematics, OnStar, LH dash), ID 85527366 price snapshot
- Low
- $56
- Average
- $124
- High
- $271

Year & trim-specific price guide
A used 2021 GMC Sierra 1500 transmission control module (Communication, (telematics, OnStar, LH dash), ID 85527366) costs $56 to $271, with a median asking price of $99. Based on 46 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 | $56–$271 | 25 | |
| Grade BStandard used | $56–$271 | 20 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $85–$85 | 1 |
Median by grade
Median asking price by seller-reported condition grade · $56–$271 overall range
Trim-specific context
This pricing covers the Communication, (telematics, OnStar, LH dash), ID 85527366 variant of the 2021 GMC Sierra 1500 transmission control module, based on 46 priced listings. Its $99 median is 26% 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 46 priced salvage-yard listings, a used 2021 GMC Sierra 1500 transmission control module in the Communication, (telematics, OnStar, LH dash), ID 85527366 variant lists between $56 and $271, with a median asking price of $99.
In our current dataset, the Communication, (telematics, OnStar, LH dash), ID 85527366 variant appears only for the 2021 model year.