2020 GMC Sierra 1500 transmission control module — Towing Control, (behind LH bumper), trailer lamp control, ID 13535101 price snapshot
- Low
- $65
- Average
- $177
- High
- $254

Year & trim-specific price guide
A used 2020 GMC Sierra 1500 transmission control module (Towing Control, (behind LH bumper), trailer lamp control, ID 13535101) costs $65 to $254, with a median asking price of $190. Based on 49 priced salvage yard listings across the US, updated Sep 3, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $65–$249 | 24 | |
| Grade BStandard used | $75–$254 | 24 | |
| Grade CVisible wear | $85–$85 | 1 | |
| Grade XUngraded | Updating | — |
Median by grade
Median asking price by seller-reported condition grade · $65–$254 overall range
Trim-specific context
This pricing covers the Towing Control, (behind LH bumper), trailer lamp control, ID 13535101 variant of the 2020 GMC Sierra 1500 transmission control module, based on 49 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 year, other trims
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Common questions
Based on 49 priced salvage-yard listings, a used 2020 GMC Sierra 1500 transmission control module in the Towing Control, (behind LH bumper), trailer lamp control, ID 13535101 variant lists between $65 and $254, with a median asking price of $190.
In our current dataset, the Towing Control, (behind LH bumper), trailer lamp control, ID 13535101 variant appears only for the 2020 model year.