GMC Terrain transmission control module — Driver Assist, rear park assist (opt UD7), (RH quarter panel) price snapshot
- Low
- $24
- Average
- $78
- High
- $153

Trim-specific price guide
A used GMC Terrain transmission control module (Driver Assist, rear park assist (opt UD7), (RH quarter panel)) costs $24 to $153, with a median asking price of $66. Based on 78 priced salvage yard listings across the US, updated Sep 13, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $24–$153 | 34 | |
| Grade BStandard used | $52–$147 | 26 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $30–$75 | 18 |
Median by grade
Median asking price by seller-reported condition grade · $24–$153 overall range
Trim-specific context
This pricing covers the Driver Assist, rear park assist (opt UD7), (RH quarter panel) variant of the GMC Terrain transmission control module, based on 78 priced listings across 2 model years (2018, 2019). Its $66 median is 12% below the GMC Terrain transmission control module overall median of $75.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
Other trims
Common questions
Based on 78 priced salvage-yard listings across 2 model years, a used GMC Terrain transmission control module in the Driver Assist, rear park assist (opt UD7), (RH quarter panel) variant lists between $24 and $153, with a median asking price of $66.
The Driver Assist, rear park assist (opt UD7), (RH quarter panel) variant appears in model years 2018, 2019. Prices and availability differ by year.
Yes. Grade A has a median of $61, Grade B has a median of $113. Grade A parts are in excellent condition, B is good, and C is fair.