Cadillac CT5 transmission control module — Communication, telematics (OnStar, opt UE1), hands free driving (opt UKL) price snapshot
- Low
- $75
- Average
- $202
- High
- $315

Trim-specific price guide
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.
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.
A used Cadillac CT5 transmission control module (Communication, telematics (OnStar, opt UE1), hands free driving (opt UKL)) costs $75 to $315, with a median asking price of $222. Based on 90 priced salvage yard listings across the US, updated Oct 16, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $85–$315 | 70 | |
| Grade BStandard used | $75–$165 | 20 |
Median by grade
Median asking price by seller-reported condition grade · $75–$315 overall range
Trim-specific context
This pricing covers the Communication, telematics (OnStar, opt UE1), hands free driving (opt UKL) variant of the Cadillac CT5 transmission control module, based on 90 priced listings across 5 model years (2021, 2022, 2023, 2024, 2025). Its $222 median is 85% above the Cadillac CT5 transmission control module overall median of $120.
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 90 priced salvage-yard listings across 5 model years, a used Cadillac CT5 transmission control module in the Communication, telematics (OnStar, opt UE1), hands free driving (opt UKL) variant lists between $75 and $315, with a median asking price of $222.
The Communication, telematics (OnStar, opt UE1), hands free driving (opt UKL) variant appears in model years 2021, 2022, 2023, 2024, 2025. Prices and availability differ by year.
Yes. Grade A has a median of $280, Grade B has a median of $81. Grade A parts are in excellent condition, B is good, and C is fair.