2018 Toyota Sienna transmission control module — Air Bag, occupant detection, (under passenger side front seat) price snapshot
- Low
- $40
- Average
- $59
- High
- $120

Year & trim-specific price guide
A used 2018 Toyota Sienna transmission control module (Air Bag, occupant detection, (under passenger side front seat)) costs $40 to $120, with a median asking price of $61. Based on 47 priced salvage yard listings across the US, updated Aug 26, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $40–$120 | 42 | |
| Grade BStandard used | $61–$71 | 3 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $40–$40 | 2 |
Median by grade
Median asking price by seller-reported condition grade · $40–$120 overall range
Trim-specific context
This pricing covers the Air Bag, occupant detection, (under passenger side front seat) variant of the 2018 Toyota Sienna transmission control module, based on 47 priced listings. Its $61 median is 36% below the 2018 Toyota Sienna transmission control module overall median of $95.
There are 36 other transmission control module variants available for the 2018 Toyota Sienna.
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 47 priced salvage-yard listings, a used 2018 Toyota Sienna transmission control module in the Air Bag, occupant detection, (under passenger side front seat) variant lists between $40 and $120, with a median asking price of $61.
The Air Bag, occupant detection, (under passenger side front seat) variant appears in model years 2018, 2019, 2020. Prices and availability may differ by year.