Buick Regal transmission control module — Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 price snapshot
- Low
- $25
- Average
- $113
- High
- $268
Trim-specific price guide
Buick Regal Transmission Control Module — Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 prices
Pricing for the Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 variant of the Buick Regal transmission control module, aggregated from 108 salvage yard listings across 3 model years.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 16, 2026AS
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Price summary
A used Buick Regal transmission control module (Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185) costs $25 to $268, with a median asking price of $91. Based on 108 priced salvage yard listings across the US, updated Oct 16, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$93
Grade B (good)$86
USD
Condition comparison
Price by part grade
Grade AClean / low wear$25–$23956 listings
Grade BStandard used$50–$26840 listings
Grade XUngraded$75–$10012 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $25–$239 | 56 | |
| Grade BStandard used | $50–$268 | 40 | |
| Grade XUngraded | $75–$100 | 12 |
Median by grade
Grade price comparison
Grade A$93
Grade B$86
Ungraded$80
Median asking price by seller-reported condition grade · $25–$268 overall range
Trim-specific context
How is the Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 priced differently?
This pricing covers the Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 variant of the Buick Regal transmission control module, based on 108 priced listings across 3 model years (2018, 2019, 2020). Its $91 median is 9% below the Buick Regal transmission control module overall median of $100.
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 Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 cost by year?
Other trims
Other Buick Regal transmission control module variants
Air Bag, (below center console), automatic braking (opt UGN)
3 yrs$51$40 – $299Air Bag, (below center console), opt AW7
3 yrs$100$40 – $268Air Bag, (below center console), opt AY0
2 yrs$110$24 – $405Air Bag, (below center console), opt AY0, ID 13593288
1 yr$99$66 – $190Air Bag, (below center console), opt AY0, ID 13596601
1 yr$180$65 – $254Air Bag, (below center console), w/o automatic braking
3 yrs$100$41 – $201Body Control (BCM), (LH dash)
5 yrs$56$41 – $232Communication, (OnStar, opt UE1)
2 yrs$232$66 – $232Communication, (OnStar, opt UE1), ID 84082610
1 yr$172$50 – $201Common questions
Buick Regal transmission control module (Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185) FAQ
How much is a used Buick Regal transmission control module (Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185)?
Based on 108 priced salvage-yard listings across 3 model years, a used Buick Regal transmission control module in the Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 variant lists between $25 and $268, with a median asking price of $91.
Which Buick Regal years use the Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 transmission control module?
The Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 variant appears in model years 2018, 2019, 2020. Prices and availability differ by year.
Is there a price difference between Driver Assist, automatic braking (opt UGN), (LH quarter panel), ID 84559185 condition grades?
Yes. Grade A has a median of $93, Grade B has a median of $86. Grade A parts are in excellent condition, B is good, and C is fair.