2018 Acura TLX transmission control module — Theft-Locking, (smart unit), (main power unit, RH dash), 3.5L, FWD price snapshot
- Low
- $35
- Average
- $128
- High
- $295

Year & trim-specific price guide
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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 2018 Acura TLX transmission control module (Theft-Locking, (smart unit), (main power unit, RH dash), 3.5L, FWD) costs $35 to $295, with a median asking price of $110. Based on 46 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 | $35–$295 | 35 | |
| Grade BStandard used | $50–$101 | 6 | |
| Grade CVisible wear | $75–$75 | 1 | |
| Grade XUngraded | $50–$75 | 4 |
Median by grade
Median asking price by seller-reported condition grade · $35–$295 overall range
Trim-specific context
This pricing covers the Theft-Locking, (smart unit), (main power unit, RH dash), 3.5L, FWD variant of the 2018 Acura TLX transmission control module, based on 46 priced listings. Its $110 median is 1% above the 2018 Acura TLX transmission control module overall median of $109.
There are 38 other transmission control module variants available for the 2018 Acura TLX.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
Same year, other trims
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Common questions
Based on 46 priced salvage-yard listings, a used 2018 Acura TLX transmission control module in the Theft-Locking, (smart unit), (main power unit, RH dash), 3.5L, FWD variant lists between $35 and $295, with a median asking price of $110.
The Theft-Locking, (smart unit), (main power unit, RH dash), 3.5L, FWD variant appears in model years 2015, 2016, 2017, 2018, 2019, 2020. Prices and availability may differ by year.