GMC Sierra 1500 transmission control module — Power Supply, (behind rear seat) price snapshot
- Low
- $25
- Average
- $142
- High
- $302
Trim-specific price guide
GMC Sierra 1500 Transmission Control Module — Power Supply, (behind rear seat) prices
Pricing for the Power Supply, (behind rear seat) variant of the GMC Sierra 1500 transmission control module, aggregated from 198 salvage yard listings across 5 model years.
Price summary
A used GMC Sierra 1500 transmission control module (Power Supply, (behind rear seat)) costs $25 to $302, with a median asking price of $100. Based on 198 priced salvage yard listings across the US, updated Sep 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$101
Grade B (good)$172
USD
Condition comparison
Price by part grade
Grade AClean / low wear$25–$30296 listings
Grade BStandard used$50–$29097 listings
Grade CVisible wearUpdating
Grade XUngraded$80–$1005 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $25–$302 | 96 | |
| Grade BStandard used | $50–$290 | 97 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $80–$100 | 5 |
Median by grade
Grade price comparison
Grade A$101
Grade B$172
Ungraded$80
Median asking price by seller-reported condition grade · $25–$302 overall range
Trim-specific context
How is the Power Supply, (behind rear seat) priced differently?
This pricing covers the Power Supply, (behind rear seat) variant of the GMC Sierra 1500 transmission control module, based on 198 priced listings across 5 model years (2021, 2022, 2023, 2024, 2025). Its $100 median is 29% below 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 Power Supply, (behind rear seat) 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 (Power Supply, (behind rear seat)) FAQ
How much is a used GMC Sierra 1500 transmission control module (Power Supply, (behind rear seat))?
Based on 198 priced salvage-yard listings across 5 model years, a used GMC Sierra 1500 transmission control module in the Power Supply, (behind rear seat) variant lists between $25 and $302, with a median asking price of $100.
Which GMC Sierra 1500 years use the Power Supply, (behind rear seat) transmission control module?
The Power Supply, (behind rear seat) variant appears in model years 2021, 2022, 2023, 2024, 2025. Prices and availability differ by year.
Is there a price difference between Power Supply, (behind rear seat) condition grades?
Yes. Grade A has a median of $101, Grade B has a median of $172. Grade A parts are in excellent condition, B is good, and C is fair.