GMC Sierra 1500 transmission control module — Transmission Control, (LH core support) price snapshot
- Low
- $50
- Average
- $165
- High
- $410
Trim-specific price guide
GMC Sierra 1500 Transmission Control Module — Transmission Control, (LH core support) prices
Pricing for the Transmission Control, (LH core support) variant of the GMC Sierra 1500 transmission control module, aggregated from 173 salvage yard listings across 4 model years.
Price summary
A used GMC Sierra 1500 transmission control module (Transmission Control, (LH core support)) costs $50 to $410, with a median asking price of $190. Based on 173 priced salvage yard listings across the US, updated Sep 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$179
Grade B (good)$190
USD
Condition comparison
Price by part grade
Grade AClean / low wear$50–$41088 listings
Grade BStandard used$50–$25479 listings
Grade CVisible wearUpdating
Grade XUngraded$50–$756 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $50–$410 | 88 | |
| Grade BStandard used | $50–$254 | 79 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $50–$75 | 6 |
Median by grade
Grade price comparison
Grade A$179
Grade B$190
Ungraded$75
Median asking price by seller-reported condition grade · $50–$410 overall range
Trim-specific context
How is the Transmission Control, (LH core support) priced differently?
This pricing covers the Transmission Control, (LH core support) variant of the GMC Sierra 1500 transmission control module, based on 173 priced listings across 4 model years (2020, 2021, 2022, 2023). Its $190 median is 36% above the GMC Sierra 1500 transmission control module overall median of $140.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
What does a Transmission Control, (LH core support) cost by year?
Other trims
Other GMC Sierra 1500 transmission control module variants
Air Bag, (on transmission tunnel)
1 yr$222$50 – $272Fuel Pump, (LH frame rail)
2 yrs$99$45 – $241Towing Control, (LH rear frame)
2 yrs$95$35 – $241Multifunction, (roof mounted)
4 yrs$222$41 – $241Memory, (under driver seat)
9 yrs$95$40 – $241Temperature, (RH under dash), ID 13506228
1 yr$91$25 – $271Temperature, (RH under dash), ID 13506229
1 yr$156$45 – $205Transmission, (LH firewall), (8 speed, opt M5U)
1 yr$179$60 – $383Body Control (BCM), (under steering column)
6 yrs$232$50 – $307Common questions
GMC Sierra 1500 transmission control module (Transmission Control, (LH core support)) FAQ
How much is a used GMC Sierra 1500 transmission control module (Transmission Control, (LH core support))?
Based on 173 priced salvage-yard listings across 4 model years, a used GMC Sierra 1500 transmission control module in the Transmission Control, (LH core support) variant lists between $50 and $410, with a median asking price of $190.
Which GMC Sierra 1500 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 differ by year.
Is there a price difference between Transmission Control, (LH core support) condition grades?
Yes. Grade A has a median of $179, Grade B has a median of $190. Grade A parts are in excellent condition, B is good, and C is fair.