2021 Cadillac XT4 transmission control module price snapshot
- Low
- $30
- Average
- $142
- High
- $405
Year-specific price guide
Used 2021 Cadillac XT4 Transmission Control Module prices
Year-specific used transmission control module pricing for the 2021 Cadillac XT4, built from real salvage yard and junkyard listings with condition grade and fitment 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 10, 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.
Part overview
About the 2021 Cadillac XT4 transmission control module
A used 2021 Cadillac XT4 transmission control module costs between $30 and $405, with a median of $150 from 1,108 salvage yard listings.
What the transmission control module does, common failure signs, and prices across all vehicles: used transmission control module price guide →
Also known asTCMTransmission ComputerTransmission ModuleTCU
Price summary
A used 2021 Cadillac XT4 transmission control module costs $30 to $405, with a median asking price of $150. Based on 1,108 priced salvage yard listings across the US, compatible across 2014–2025 (12 model years), updated Oct 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$140
Grade B (good)$177
Grade C (fair)$100
USD
Condition comparison
Price by part grade
Grade AClean / low wear$30–$405770 listings
Grade BStandard used$41–$274327 listings
Grade CVisible wear$50–$1002 listings
Grade XUngraded$35–$759 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $30–$405 | 770 | |
| Grade BStandard used | $41–$274 | 327 | |
| Grade CVisible wear | $50–$100 | 2 | |
| Grade XUngraded | $35–$75 | 9 |
Median by grade
Grade price comparison
Grade A$140
Grade B$177
Grade C$100
Ungraded$60
Median asking price by seller-reported condition grade · $30–$405 overall range
Replacement cost
What is the 2021 Cadillac XT4 transmission control module replacement cost?
- Used part
- $150
- 2021 Cadillac XT4 median asking price
- Labor
- $95–$300
- 1–2 hours at $95–$150/hr
- Estimated total
- $245–$450
- median used part + labor
Labor is a typical independent-shop range for transmission control module replacement, not a quote for your vehicle; it does not include programming and adaptive relearn procedure. The part price is the live median from the salvage-yard listings on this page. Full transmission control module replacement cost breakdown
Fitment matters
Price by trim & variant
Communication, telematics (OnStar opt UE1), ID 8472168350 listingsInterchange 2020–2023$177$50 – $232
Driver Assist, park assist, (RH inner quarter panel), w/o automatic park control; front and rear park assist (opt UD5)50 listingsInterchange 2019–2024$190$132 – $274
Driver Assist, park assist, (RH inner quarter panel), w/o automatic park control; rear park assist (opt UD7)50 listingsInterchange 2019–2025$195$35 – $232
Communication, telematics (OnStar opt UE1), ID 8461303449 listingsInterchange 2020–2023$195$45 – $226
Communication, telematics (OnStar opt UE1), ID 8467608149 listingsInterchange 2020–2023$195$45 – $226
Air Bag, (below center console), pre-crash system (opt UGN)48 listingsInterchange 2017–2022$151$51 – $232
Driver Assist, park assist, (RH inner quarter panel), automatic park control (opt UKG)45 listingsInterchange 2019–2025$110$40 – $270
Suspension, (LH inner quarter panel), (damping, opt F45)15 listingsInterchange 2019–2023$121$101 – $125
Year-specific context
How does the 2021 Cadillac XT4 compare?
The 2021 guide is based on 1,167 observed listings, including 1,108 with posted prices. Its $150 median is 76% above the Cadillac XT4 guide's $85 median.
Among the 7 model years with current price data, 2021 ranks #7 from lowest to highest median.
Interchange data shows this part is also listed under model years 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023, 2024, 2025. Shopping across all 12 compatible years may surface better prices or condition grades.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Compare model years
What does a Cadillac XT4 transmission control module cost in other years?
Keep browsing this vehicle
What other Cadillac XT4 parts are priced?
01wide ±76%
AC Compressor
$178median
$45$316
02wide ±172%
ABS Module
$125median
$40$470
03wide ±220%
Air Bag
$200median
$45$925
04wide ±144%
Alternator
$96median
$40$316
05wide ±197%
Axle Shaft
$115median
$40$493
06wide ±78%
Blower Motor
$190median
$45$343
07wide ±185%
Brake Caliper
$124median
$35$493
08wide ±65%
Rear Bumper Assembly
$718median
$350$1,287
09wide ±66%
Front Bumper
$335median
$135$580
10wide ±123%
Rear Bumper
$300median
$90$825
11wide ±141%
Car Radio
$141median
$50$449
12wide ±131%
Center Console
$155median
$40$445
13wide ±78%
AC Condenser
$180median
$50$332
14wide ±206%
Control Arm
$86median
$50$405
15
Differential
Price data updating
16wide ±61%
Door Assembly
$903median
$400$1,501
17wide ±105%
Drive Shaft
$165median
$75$420
18spread ±44%
Engine
$953median
$599$1,437
19wide ±96%
Engine Computer
$146median
$50$330
20
Exhaust Manifold
Price data updating
21wide ±66%
Fender
$431median
$180$745
22wide ±218%
Fog Light
$82median
$22$380
23wide ±100%
Front Seat
$200median
$100$500
24wide ±127%
Fuel Pump
$110median
$45$325
25wide ±115%
Fuel Tank
$165median
$67$445
26wide ±91%
Grille
$440median
$60$862
27wide ±64%
Headlight Assembly
$825median
$442$1,500
28tight ±1%
Heater Core
$81median
$81$83
29wide ±65%
Hood
$682median
$295$1,180
30spread ±33%
Ignition Switch
$100median
$60$125
31
Instrument Cluster
Price data updating
32wide ±231%
Intake Manifold
$56median
$36$295
33
Master Cylinder
$76median
$76$76
34wide ±103%
Side Mirror
$250median
$95$612
35
Power Steering Pump
Price data updating
36wide ±61%
Quarter Panel
$500median
$301$912
37wide ±126%
Radiator
$171median
$70$500
38wide ±157%
Rear View Mirror
$103median
$25$349
39wide ±160%
Starter
$86median
$35$310
40wide ±128%
Steering Column
$172median
$50$491
41wide ±155%
Steering Rack
$200median
$54$673
42wide ±91%
Steering Wheel
$174median
$70$386
43wide ±162%
Strut
$100median
$50$373
44wide ±134%
Sunroof
$231median
$81$699
45wide ±128%
Tail Light
$209median
$39$575
46wide ±77%
Tailgate
$950median
$250$1,720
47wide ±122%
Throttle Body
$119median
$25$316
48spread ±27%
Torque Converter
$237median
$150$280
49wide ±134%
Transfer Case
$350median
$100$1,039
50wide ±102%
Transmission
$941median
$287$2,203
51spread ±36%
Turbocharger
$232median
$148$316
52wide ±74%
Water Pump
$145median
$61$276
53wide ±122%
Wheels
$215median
$60$585
54wide ±146%
Window Regulator
$126median
$42$410
Common questions
2021 Cadillac XT4 transmission control module FAQ
How much is a used 2021 Cadillac XT4 transmission control module?
Based on 1,108 priced salvage-yard listings, a used 2021 Cadillac XT4 transmission control module lists between $30 and $405, with a median asking price of $150.
How much does it cost to replace a 2021 Cadillac XT4 transmission control module?
Using a used part, a 2021 Cadillac XT4 transmission control module replacement typically runs $245–$450 all-in: the median used transmission control module for this year lists at $150, and independent-shop labor for transmission control module replacement typically takes 1–2 hours at $95–$150/hr ($95–$300). The labor figure does not include programming and adaptive relearn procedure. Labor is a national part-level estimate, not a quote for your vehicle.
Will a 2021 Cadillac XT4 transmission control module fit another year?
Based on salvage-yard interchange data, listings for the 2021 Cadillac XT4 transmission control module also appear under model years 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023, 2024, 2025, suggesting these years share compatible fitments. Always verify the exact part number, drivetrain, trim, and your VIN before buying — interchange compatibility can vary by variant.
How much is a 2021 Cadillac XT4 tcm?
A tcm is another name for a transmission control module. The prices on this page cover the 2021 Cadillac XT4 transmission control module — median $150, from 1,108 listings.