2018 Cadillac CTS transmission control module price snapshot
- Low
- $20
- Average
- $135
- High
- $425
Year-specific price guide
Used 2018 Cadillac CTS Transmission Control Module prices
Year-specific used transmission control module pricing for the 2018 Cadillac CTS, 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 2018 Cadillac CTS transmission control module
A used 2018 Cadillac CTS transmission control module costs between $20 and $425, with a median of $110 from 1,401 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 2018 Cadillac CTS transmission control module costs $20 to $425, with a median asking price of $110. Based on 1,401 priced salvage yard listings across the US, compatible across 2013–2024 (12 model years), updated Oct 10, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$111
Grade B (good)$110
Grade C (fair)$95
USD
Condition comparison
Price by part grade
Grade AClean / low wear$20–$4251,051 listings
Grade BStandard used$25–$405312 listings
Grade CVisible wear$75–$1044 listings
Grade XUngraded$33–$12034 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $20–$425 | 1,051 | |
| Grade BStandard used | $25–$405 | 312 | |
| Grade CVisible wear | $75–$104 | 4 | |
| Grade XUngraded | $33–$120 | 34 |
Median by grade
Grade price comparison
Grade A$111
Grade B$110
Grade C$95
Ungraded$55
Median asking price by seller-reported condition grade · $20–$425 overall range
Replacement cost
What is the 2018 Cadillac CTS transmission control module replacement cost?
- Used part
- $110
- 2018 Cadillac CTS median asking price
- Labor
- $95–$300
- 1–2 hours at $95–$150/hr
- Estimated total
- $205–$410
- 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
Fuel Pump, (LH mid undercarriage), 6.2L (VIN 6, 8th digit, opt LT4)48 listingsInterchange 2014–2020$110$45 – $241
Fuel Pump, (LH mid undercarriage), 3.6L (VIN 8, 8th digit, opt LF3)45 listingsInterchange 2016–2022$222$20 – $241
Driver Assist, park assist, (below RH package deck), ID 84050285 (opt UFQ)41 listingsInterchange 2017–2019$110$50 – $405
Communication, telematics (OnStar opt UE1), ID 8435118238 listingsInterchange 2018–2020$99$45 – $121
Communication, telematics (OnStar opt UE1), ID 8443113738 listingsInterchange 2018–2020$99$45 – $121
Driver Assist, pre-crash system (opt UGN), (LH quarter panel), ID 8421807038 listingsInterchange 2017–2024$143$29 – $241
Driver Assist, pre-crash system (opt UGN), (LH quarter panel), ID 8455918538 listingsInterchange 2017–2024$143$29 – $241
Communication, vehicle-to-vehicle (V2V), (rear package shelf), ID 8442336530 listingsInterchange 2017–2019$135$40 – $257
Year-specific context
How does the 2018 Cadillac CTS compare?
The 2018 guide is based on 1,732 observed listings, including 1,401 with posted prices. Its $110 median is 0% above the Cadillac CTS guide's $110 median.
Among the 5 model years with current price data, 2018 ranks #4 from lowest to highest median.
Interchange data shows this part is also listed under model years 2013, 2014, 2015, 2016, 2017, 2019, 2020, 2021, 2022, 2023, 2024. 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 CTS transmission control module cost in other years?
Keep browsing this vehicle
What other Cadillac CTS parts are priced?
01wide ±126%
AC Compressor
$133median
$40$376
02wide ±185%
ABS Module
$130median
$40$520
03wide ±169%
Air Bag
$124median
$35$455
04wide ±153%
Alternator
$110median
$30$366
05wide ±155%
Axle Shaft
$99median
$35$342
06wide ±91%
Blower Motor
$76median
$40$178
07wide ±236%
Brake Caliper
$70median
$20$350
08wide ±210%
Rear Bumper Assembly
$387median
$75$1,700
09spread ±46%
Front Bumper
$700median
$350$1,000
10wide ±120%
Rear Bumper
$540median
$100$1,395
11wide ±205%
Car Radio
$171median
$30$731
12wide ±107%
Center Console
$156median
$40$375
13wide ±285%
AC Condenser
$100median
$30$600
14wide ±163%
Control Arm
$75median
$35$280
15
Differential
Price data updating
16wide ±129%
Door Assembly
$251median
$100$750
17wide ±136%
Drive Shaft
$143median
$60$450
18wide ±224%
Engine
$1,900median
$478$8,995
19spread ±43%
Engine Computer
$82median
$55$125
20wide ±222%
Exhaust Manifold
$210median
$44$975
21wide ±84%
Fender
$337median
$100$669
22wide ±180%
Fog Light
$131median
$23$495
23wide ±126%
Front Seat
$281median
$60$770
24wide ±280%
Fuel Pump
$100median
$35$595
25wide ±87%
Fuel Tank
$171median
$58$355
26wide ±282%
Grille
$166median
$28$963
27wide ±91%
Headlight Assembly
$730median
$145$1,480
28wide ±169%
Heater Core
$51median
$40$212
29wide ±244%
Hood
$512median
$100$2,595
30spread ±48%
Ignition Switch
$78median
$55$130
31
Instrument Cluster
Price data updating
32wide ±236%
Intake Manifold
$100median
$27$499
33wide ±125%
Master Cylinder
$99median
$20$268
34wide ±180%
Side Mirror
$147median
$40$569
35spread ±42%
Power Steering Pump
$65median
$45$100
36wide ±85%
Quarter Panel
$360median
$231$846
37wide ±225%
Radiator
$150median
$50$725
38wide ±243%
Rear View Mirror
$103median
$40$540
39wide ±160%
Starter
$90median
$28$316
40wide ±120%
Steering Column
$156median
$60$435
41wide ±192%
Steering Rack
$300median
$99$1,250
42wide ±102%
Steering Wheel
$157median
$65$384
43wide ±180%
Strut
$100median
$35$395
44wide ±170%
Sunroof
$184median
$76$700
45wide ±63%
Tail Light
$293median
$160$530
46wide ±264%
Tailgate
$300median
$50$1,635
47wide ±155%
Throttle Body
$75median
$29$262
48tight ±5%
Torque Converter
$275median
$248$275
49wide ±268%
Transfer Case
$185median
$90$1,082
50wide ±288%
Transmission
$773median
$150$4,605
51wide ±88%
Turbocharger
$325median
$70$640
52wide ±237%
Water Pump
$65median
$20$328
53wide ±136%
Wheels
$249median
$65$740
54wide ±167%
Window Regulator
$81median
$40$310
Common questions
2018 Cadillac CTS transmission control module FAQ
How much is a used 2018 Cadillac CTS transmission control module?
Based on 1,401 priced salvage-yard listings, a used 2018 Cadillac CTS transmission control module lists between $20 and $425, with a median asking price of $110.
How much does it cost to replace a 2018 Cadillac CTS transmission control module?
Using a used part, a 2018 Cadillac CTS transmission control module replacement typically runs $205–$410 all-in: the median used transmission control module for this year lists at $110, 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 2018 Cadillac CTS transmission control module fit another year?
Based on salvage-yard interchange data, listings for the 2018 Cadillac CTS transmission control module also appear under model years 2013, 2014, 2015, 2016, 2017, 2019, 2020, 2021, 2022, 2023, 2024, 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 2018 Cadillac CTS tcm?
A tcm is another name for a transmission control module. The prices on this page cover the 2018 Cadillac CTS transmission control module — median $110, from 1,401 listings.