2019 Cadillac XT4 transmission control module — Differential Lock, (rear differential) price snapshot
- Low
- $35
- Average
- $82
- High
- $305
Year & trim-specific price guide
Used 2019 Cadillac XT4 Transmission Control Module — Differential Lock, (rear differential) prices
Trim-specific pricing for the Differential Lock, (rear differential) variant of the 2019 Cadillac XT4 transmission control module, built from 41 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 updatedSep 30, 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 2019 Cadillac XT4 transmission control module (Differential Lock, (rear differential)) costs $35 to $305, with a median asking price of $66. Based on 41 priced salvage yard listings across the US, updated Sep 30, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$71
Grade B (good)$56
Grade C (fair)$65
USD
Condition comparison
Price by part grade
Grade AClean / low wear$41–$17622 listings
Grade BStandard used$41–$30515 listings
Grade CVisible wear$65–$651 listings
Grade XUngraded$35–$803 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $41–$176 | 22 | |
| Grade BStandard used | $41–$305 | 15 | |
| Grade CVisible wear | $65–$65 | 1 | |
| Grade XUngraded | $35–$80 | 3 |
Median by grade
Grade price comparison
Grade A$71
Grade B$56
Grade C$65
Ungraded$50
Median asking price by seller-reported condition grade · $35–$305 overall range
Trim-specific context
How does the Differential Lock, (rear differential) compare?
This pricing covers the Differential Lock, (rear differential) variant of the 2019 Cadillac XT4 transmission control module, based on 41 priced listings. Its $66 median is 12% below the 2019 Cadillac XT4 transmission control module overall median of $75.
There are 24 other transmission control module variants available for the 2019 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 2019 Cadillac XT4 transmission control module variants are available?
Body Control (BCM), (LH kick panel)
50 listings$77$77 – $343Information-GPS-TV, (surround view), (center dash)
50 listings$111$40 – $225Air Bag, (below center console), w/o pre-crash system
48 listings$88$46 – $335Transmission, (on transmission)
48 listings$56$46 – $120Communication, telematics (OnStar opt UE1), ID 84653367
47 listings$81$61 – $232Driver Assist, park assist, (RH inner quarter panel), w/o automatic park control; rear park assist (opt UD7)
47 listings$71$41 – $203Fuel Pump, (RH inner quarter panel)
47 listings$56$46 – $138Theft-Locking, keyless entry, (RH dash), ID 13518840
47 listings$71$50 – $310Theft-Locking, keyless entry, (RH dash), ID 13518843
47 listings$86$40 – $120Theft-Locking, lock, (rear view mirror)
47 listings$41$41 – $162Driver Assist, park assist, (RH inner quarter panel), w/o automatic park control; front and rear park assist (opt UD5)
46 listings$75$41 – $295Temperature, (center of heater box), ID 84579083
46 listings$66$40 – $163Memory, (seat, mounted under seat), RH
45 listings$81$45 – $151Temperature, (center of heater box), ID 84569251
45 listings$51$40 – $232Steering, (steering column)
44 listings$51$41 – $415Driver Assist, pre-crash system (opt UGN), (LH inner quarter panel)
43 listings$90$25 – $268Air Bag, (below center console), pre-crash system (opt UGN)
42 listings$51$40 – $299Communication, telematics (OnStar opt UE1), ID 84596569
42 listings$91$40 – $271Communication, wireless charger, ID 13521065
42 listings$66$41 – $268Communication, wireless charger, ID 13529205
42 listings$66$41 – $268Memory, (seat, mounted under seat), LH
42 listings$49$41 – $244Driver Assist, park assist, (RH inner quarter panel), automatic park control (opt UKG)
40 listings$61$50 – $405Communication, telematics (OnStar opt UE1), ID 84644343
15 listings$172$90 – $260Suspension, (LH inner quarter panel), (damping, opt F45)
15 listings$121$86 – $125Back to full guide
2019 Cadillac XT4 transmission control module — all trims
Common questions
2019 Cadillac XT4 transmission control module (Differential Lock, (rear differential)) FAQ
How much is a used 2019 Cadillac XT4 transmission control module (Differential Lock, (rear differential))?
Based on 41 priced salvage-yard listings, a used 2019 Cadillac XT4 transmission control module in the Differential Lock, (rear differential) variant lists between $35 and $305, with a median asking price of $66.
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.