2025 Cadillac XT4 transmission control module — Differential Lock, (rear differential) price snapshot
- Low
- $40
- Average
- $142
- High
- $321
Year & trim-specific price guide
Used 2025 Cadillac XT4 Transmission Control Module — Differential Lock, (rear differential) prices
Trim-specific pricing for the Differential Lock, (rear differential) variant of the 2025 Cadillac XT4 transmission control module, built from 43 real salvage yard listings with condition grade detail.
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 14, 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 2025 Cadillac XT4 transmission control module (Differential Lock, (rear differential)) costs $40 to $321, with a median asking price of $135. Based on 43 priced salvage yard listings across the US, updated Oct 14, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$137
USD
Condition comparison
Price by part grade
Grade AClean / low wear$40–$32142 listings
Grade XUngraded$100–$1001 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $40–$321 | 42 | |
| Grade XUngraded | $100–$100 | 1 |
Median by grade
Grade price comparison
Grade A$137
Ungraded$100
Median asking price by seller-reported condition grade · $40–$321 overall range
Trim-specific context
How does the Differential Lock, (rear differential) compare?
This pricing covers the Differential Lock, (rear differential) variant of the 2025 Cadillac XT4 transmission control module, based on 43 priced listings. Its $135 median is 59% above the 2025 Cadillac XT4 transmission control module overall median of $85.
There are 12 other transmission control module variants available for the 2025 Cadillac XT4.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
Differential Lock, (rear differential) in other model years
Same year, other trims
What other 2025 Cadillac XT4 transmission control module variants are available?
Fuel Pump, (RH inner quarter panel)
49 listings$46$35 – $127Driver Assist, park assist, (RH inner quarter panel)
48 listings$125$41 – $330Theft-Locking, keyless entry, (RH dash)
48 listings$46$20 – $113Temperature, (center of heater box)
47 listings$66$50 – $305Air Bag, (below center console)
46 listings$156$40 – $350Transmission, (on transmission)
46 listings$81$50 – $295Communication, telematics (OnStar opt UE1)
41 listings$100$70 – $295Theft-Locking, lock, (rear view mirror)
13 listings$75$50 – $226Memory, (seat, mounted under seat), 8 way adjustable, LH
10 listings$116$50 – $162Communication, wireless charger, (center console)
2 listings$85$81 – $85Information-GPS-TV, (LH quarter panel)
2 listings$75$50 – $75Body Control (BCM), (LH kick panel)
1 listings$100$100 – $100Back to full guide
2025 Cadillac XT4 transmission control module — all trims
Common questions
2025 Cadillac XT4 transmission control module (Differential Lock, (rear differential)) FAQ
How much is a used 2025 Cadillac XT4 transmission control module (Differential Lock, (rear differential))?
Based on 43 priced salvage-yard listings, a used 2025 Cadillac XT4 transmission control module in the Differential Lock, (rear differential) variant lists between $40 and $321, with a median asking price of $135.
Which years use the Differential Lock, (rear differential) transmission control module?
The Differential Lock, (rear differential) variant appears in model years 2019, 2020, 2021, 2022, 2023, 2024, 2025. Prices and availability may differ by year.