2020 GMC Sierra 1500 transmission control module — Transmission Control, (LH core support) price snapshot
- Low
- $51
- Average
- $155
- High
- $254
Year & trim-specific price guide
Used 2020 GMC Sierra 1500 Transmission Control Module — Transmission Control, (LH core support) prices
Trim-specific pricing for the Transmission Control, (LH core support) variant of the 2020 GMC Sierra 1500 transmission control module, built from 47 real salvage yard listings with condition grade detail.
Price summary
A used 2020 GMC Sierra 1500 transmission control module (Transmission Control, (LH core support)) costs $51 to $254, with a median asking price of $190. Based on 47 priced salvage yard listings across the US, updated Sep 3, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$109
Grade B (good)$190
USD
Condition comparison
Price by part grade
Grade AClean / low wear$51–$23426 listings
Grade BStandard used$66–$25421 listings
Grade CVisible wearUpdating
Grade XUngradedUpdating
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $51–$234 | 26 | |
| Grade BStandard used | $66–$254 | 21 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | Updating | — |
Median by grade
Grade price comparison
Grade A$109
Grade B$190
Median asking price by seller-reported condition grade · $51–$254 overall range
Trim-specific context
How does the Transmission Control, (LH core support) compare?
This pricing covers the Transmission Control, (LH core support) variant of the 2020 GMC Sierra 1500 transmission control module, based on 47 priced listings. Its $190 median is 3% above the 2020 GMC Sierra 1500 transmission control module overall median of $185.
There are 37 other transmission control module variants available for the 2020 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
Transmission Control, (LH core support) in other model years
Same year, other trims
What other 2020 GMC Sierra 1500 transmission control module variants are available?
Body Control (BCM), (under steering column), ID 13508761
50 listings$190$56 – $232Body Control (BCM), (under steering column), ID 13536089
50 listings$159$40 – $243Driver Assist, park assist, (RH cab back panel), opt UD5
50 listings$190$99 – $274Driver Assist, park assist, (RH cab back panel), opt UD7
50 listings$195$35 – $232Power Supply, (behind rear seat), 100 volt (opt KI4)
50 listings$177$50 – $232Temperature, (RH under dash), ID 13507671
50 listings$100$37 – $220Fuel Pump, (RH rear frame rail)
50 listings$232$50 – $232Transfer Case, (LH inner fender)
50 listings$190$51 – $255Multifunction, (roof mounted)
49 listings$232$41 – $232Memory, (under driver seat)
49 listings$51$41 – $232Driver Assist, surround view, (RH cab back panel), ID 84689107
49 listings$195$50 – $410Driver Assist, surround view, (RH cab back panel), ID 84714771
49 listings$195$50 – $410Driver Assist, surround view, (RH cab back panel), ID 84714844
49 listings$195$50 – $410Driver Assist, surround view, (RH cab back panel), ID 84743036
49 listings$195$50 – $410Driver Assist, surround view, (RH cab back panel), ID 84757718
49 listings$195$50 – $410Driver Assist, surround view, (RH cab back panel), ID 84833405
49 listings$195$50 – $410Towing Control, (behind LH bumper), trailer lamp control, ID 13535101
49 listings$190$65 – $254Air Bag, (RH rear floor)
49 listings$192$61 – $233Towing Control, (behind LH bumper), tow package
49 listings$190$50 – $226Communication, (telematics), (LH dash), ID 84644344
48 listings$232$46 – $232Suspension, (rear frame), ID 84447009
48 listings$159$45 – $380Suspension, (rear frame), ID 84591777
48 listings$111$40 – $300Towing Control, (behind LH bumper), trailer lamp control, ID 13524896
48 listings$153$27 – $282Steering, (steering mounted), ID 13524104
48 listings$166$50 – $254Steering, (steering mounted), ID 13535112
48 listings$166$50 – $254Temperature, (RH under dash), ID 13507672
47 listings$147$45 – $340Network Gateway, (LH rear engine compartment)
47 listings$232$46 – $232Theft-Locking, (keyless entry, LH under dash)
46 listings$190$66 – $232Steering, (steering mounted), ID 84836986
44 listings$149$45 – $235Temperature, (RH under dash), ID 84569255
42 listings$109$30 – $192Communication, (telematics), (LH dash), ID 84720629
41 listings$115$35 – $200Temperature, (RH under dash), ID 13507673
41 listings$110$45 – $405Temperature, (RH under dash), ID 84569254
39 listings$115$44 – $300Temperature, (RH under dash), ID 84569253
36 listings$99$40 – $218Driver Assist, surround view, (RH cab back panel), ID 84680218
25 listings$150$75 – $305Power Supply, (behind rear seat), 230 volt (opt KI5)
9 listings$100$78 – $210Driver Assist, surround view, (RH cab back panel), ID 84691754
2 listings$99$75 – $99Back to full guide
2020 GMC Sierra 1500 transmission control module — all trims
Common questions
2020 GMC Sierra 1500 transmission control module (Transmission Control, (LH core support)) FAQ
How much is a used 2020 GMC Sierra 1500 transmission control module (Transmission Control, (LH core support))?
Based on 47 priced salvage-yard listings, a used 2020 GMC Sierra 1500 transmission control module in the Transmission Control, (LH core support) variant lists between $51 and $254, with a median asking price of $190.
Which years use the Transmission Control, (LH core support) transmission control module?
The Transmission Control, (LH core support) variant appears in model years 2020, 2021, 2022, 2023. Prices and availability may differ by year.