Cadillac CT5 transmission control module price snapshot
- Low
- $24
- Average
- $134
- High
- $425
Vehicle-specific price guide
How much is a used Cadillac CT5 transmission control module?
Asking prices from 340 salvage yards in 42 states, broken down by model year, condition grade, and fitment variant.
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 16, 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 Cadillac CT5 transmission control module
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 Cadillac CT5 transmission control module costs $24 to $425, with a median asking price of $120. Based on 3,870 priced salvage yard listings across the US, compatible across 2015–2026 (12 model years), updated Oct 16, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$126
Grade B (good)$110
Grade C (fair)$71
USD
Condition comparison
Price by part grade
Grade AClean / low wear$24–$4252,825 listings
Grade BStandard used$30–$410934 listings
Grade CVisible wear$35–$1063 listings
Grade XUngraded$25–$305108 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $24–$425 | 2,825 | |
| Grade BStandard used | $30–$410 | 934 | |
| Grade CVisible wear | $35–$106 | 3 | |
| Grade XUngraded | $25–$305 | 108 |
Median by grade
Grade price comparison
Grade A$126
Grade B$110
Grade C$71
Ungraded$86
Median asking price by seller-reported condition grade · $24–$425 overall range
Regional supply
Where the Cadillac CT5 transmission control module is listed
We found priced Cadillac CT5 transmission control module listings at 340 salvage yards across 42 states. Texas supplies the most, with 929 listings (24% of the total) from 42 yards. Location matters: yards in Mississippi ask a median $63, while North Carolina yards ask $172, 173% more for the same part. Shipping usually costs less than that gap for smaller parts, so it can pay to buy out of state.
| State | Listings | Yards | Median ask |
|---|---|---|---|
| Texas | 929 | 42 | $91-24% |
| Florida | 885 | 33 | $162+35% |
| Mississippi | 180 | 6 | $63-47% |
| Georgia | 154 | 12 | $99-17% |
| Alabama | 138 | 6 | $110-8% |
| North Carolina | 131 | 20 | $172+43% |
| California | 112 | 31 | $81-32% |
| Louisiana | 106 | 4 | $137+14% |
States with at least 10 priced listings. % is versus the $120 national median.
Replacement cost
What is the Cadillac CT5 transmission control module replacement cost?
- Used part
- $120
- Cadillac CT5 median asking price
- Labor
- $95–$300
- 1–2 hours at $95–$150/hr
- Estimated total
- $215–$420
- 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
Sources
- Labor time estimates: Part Price Guide labor database
Driver Assist, park assist, (RH inner quarter panel), w/o automatic park; front and rear park assist (opt UD5)49 listingsInterchange 2024–2025$182$50 – $243
Driver Assist, park assist, (RH inner quarter panel), w/o automatic park; rear park assist (opt UD7)49 listingsInterchange 2023–2026$171$41 – $330
Driver Assist, forward collision warning, (trunk compartment), w/o hands free driving48 listingsInterchange 2021–2024$153$42 – $305
Communication, telematics (OnStar, opt UE1), w/o hands free driving47 listingsInterchange 2021–2024$90$56 – $295
Communication, telematics (OnStar, opt UE1), hands free driving (opt UKL)18 listingsInterchange 2021–2025$222$75 – $315
Driver Assist, forward collision warning, (trunk compartment), hands free driving (opt UKL)9 listings$410$250 – $425
Model-year comparison
What does a Cadillac CT5 transmission control module cost by year?
Market analysis
How much does a used Cadillac CT5 transmission control module cost?
Asking prices for a used Cadillac CT5 transmission control module are unusually spread out: the top listing asks more than ten times what the cheapest does, so which unit you pick matters more than the median. Condition matters: grade-A units (lowest mileage, best condition) carry roughly a 77% premium over grade-C stock, with grade-A medians at $126.
Fitment variant moves the price more than most buyers expect. The most affordable variant we track, Communication, wireless charger, (under console), lists at a $71 median, while Driver Assist, forward collision warning, (trunk compartment), hands free driving (opt UKL) commands $410, a 477% gap inside the same part category. Confirm which variant your VIN requires before comparing quotes.
Model year matters too: 2020 units carry the lowest median at $89, while 2023 tops the table at $145. Parts from 2015–2025 are interchangeable, so if the 2020 fits your vehicle, it offers the best value across 11 compatible years.
Against comparable vehicles, the Cadillac CT5 sits 11% below the Mercedes S Class ($135), 12% above the Mercedes E Class ($107), and 17% below the Mercedes GLE Class ($145) for the same part. The “similar vehicles” cards below open each comparison guide.
Buying a used transmission control module: what to check
- Match exact part numbers and software flash codes: Verify hardware numbers and firmware revision suffix letters, as valve body solenoid drivers vary between sub-models.
- Inspect connector pins for fluid wicking: Check harness plug sockets for fluid intrusion, as failing transmission harness seals push ATF into the TCM pins.
- Verify donor axle ratio and tire size match: Ensure donor vehicle axle ratios and tire sizes match to prevent shifting fault codes and limp-mode triggers.
- Confirm internal circuit board casing integrity: Check plastic housings for cracked mounting ears, housing cracks, or rattling components inside the module casing.
- Perform adaptive shift learn routine after install: Clear existing TCM adaptive tables using a scan tool so the module relearns your transmission's clutch pack wear.
Keep browsing this vehicle
What other Cadillac CT5 parts are priced?
01wide ±158%
Air Bag
$210median
$48$711
02wide ±127%
Control Arm
$123median
$32$345
03wide ±163%
Wheels
$400median
$99$1,399
04wide ±122%
Axle Shaft
$121median
$40$335
05wide ±168%
Car Radio
$160median
$50$587
06wide ±176%
Brake Caliper
$175median
$35$650
07wide ±108%
Center Console
$143median
$75$385
08wide ±123%
Engine
$2,525median
$640$6,856
09wide ±120%
Drive Shaft
$227median
$75$618
10wide ±111%
Side Mirror
$322median
$121$838
11wide ±153%
Front Seat
$345median
$100$1,155
12wide ±65%
Transmission
$1,486median
$713$2,639
Price comparisons
Compare Cadillac CT5 transmission control module prices
Transmission Control Modulecompare
MercedesSClassvsCadillacCT5
Class$135
CT5$120
$15 diff36,082 listings
Transmission Control ModulecompareMercedesEClassvsCadillacCT5
Class$107
CT5$120
$13 diff31,573 listings
Transmission Control ModulecompareMercedesGLEClassvsCadillacCT5
Class$145
CT5$120
$25 diff28,592 listings
Transmission Control ModulecompareFordF150vsCadillacCT5
F150$156
CT5$120
$36 diff24,956 listings
Transmission Control ModulecompareMercedesCClassvsCadillacCT5
Class$100
CT5$120
$20 diff21,198 listings
Transmission Control ModulecompareToyotaRAV4vsCadillacCT5
RAV4$125
CT5$120
$5 diff19,603 listings
Compare fitments
What do similar vehicles charge for this part?
Acurawide ±183%
Acura ILX
$109median
$35$435
Acurawide ±218%
Acura Integra
$125median
$25$569
Acurawide ±232%
Acura MDX
$111median
$30$544
Acurawide ±203%
Acura RDX
$108median
$35$474
Acurawide ±212%
Acura TLX
$101median
$25$454
Audiwide ±253%
Audi A4
$123median
$22$644
Audiwide ±279%
Audi A6
$116median
$25$673
Audiwide ±220%
Audi Q3
$106median
$23$490
Cadillacwide ±193%
Cadillac CTS
$110median
$20$445
Cadillacwide ±175%
Cadillac Escalade
$132median
$24$485
Cadillacwide ±232%
Cadillac XT4
$85median
$20$415
Cadillacwide ±245%
Cadillac XT5
$110median
$20$560
Common questions
Cadillac CT5 transmission control module FAQ
How much is a used transmission control module for a Cadillac CT5?
The median asking price is $120 across 3,870 priced listings from 340 yards. Grade-A units, the cleanest stock, have a median of $126. 2020 is the cheapest model year we track, with a median of $89.
How much does it cost to replace a Cadillac CT5 transmission control module?
Using a used part, a Cadillac CT5 transmission control module replacement typically runs $215–$420 all-in: the median used transmission control module for this model lists at $120, 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.
Which Cadillac CT5 model years does this price guide cover?
This guide currently has year-level pricing for 2025, 2024, 2023, 2022, 2021, 2020. Other model years contribute to the overall range where sellers listed them without a year breakdown.
Which Cadillac CT5 transmission control module years are interchangeable?
Salvage-yard interchange data links Cadillac CT5 transmission control module fitments across 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026. Searching all 12 years widens the pool of units; confirm the part number against your VIN, since trim or drivetrain can split an interchange group.