2018 Chevy Impala transmission control module price snapshot
- Low
- $24
- Average
- $146
- High
- $405
Year-specific price guide
Used 2018 Chevy Impala Transmission Control Module prices
Year-specific used transmission control module pricing for the 2018 Chevy Impala, 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 28, 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 Chevy Impala transmission control module
A used 2018 Chevy Impala transmission control module costs between $24 and $405, with a median of $165 from 910 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 Chevy Impala transmission control module costs $24 to $405, with a median asking price of $165. Based on 910 priced salvage yard listings across the US, compatible across 2014–2022 (9 model years), updated Oct 28, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$177
Grade B (good)$173
Grade C (fair)$70
USD
Condition comparison
Price by part grade
Grade AClean / low wear$30–$340567 listings
Grade BStandard used$24–$405317 listings
Grade CVisible wear$35–$1259 listings
Grade XUngraded$35–$12517 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $30–$340 | 567 | |
| Grade BStandard used | $24–$405 | 317 | |
| Grade CVisible wear | $35–$125 | 9 | |
| Grade XUngraded | $35–$125 | 17 |
Median by grade
Grade price comparison
Grade A$177
Grade B$173
Grade C$70
Ungraded$55
Median asking price by seller-reported condition grade · $24–$405 overall range
Replacement cost
What is the 2018 Chevy Impala transmission control module replacement cost?
- Used part
- $165
- 2018 Chevy Impala median asking price
- Labor
- $95–$300
- 1–2 hours at $95–$150/hr
- Estimated total
- $260–$465
- 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, (OnStar, opt UE1), (package shelf), ID 8414687650 listingsInterchange 2018–2020$110$50 – $240
Driver Assist, rear park assist (opt UD7), (LH quarter panel)47 listingsInterchange 2016–2020$129$24 – $249
Year-specific context
How does the 2018 Chevy Impala compare?
The 2018 guide is based on 1,000 observed listings, including 910 with posted prices. Its $165 median is 27% above the Chevy Impala guide's $130 median.
Among the 5 model years with current price data, 2018 ranks #5 from lowest to highest median.
Interchange data shows this part is also listed under model years 2014, 2015, 2016, 2017, 2019, 2020, 2021, 2022. Shopping across all 9 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 Chevy Impala transmission control module cost in other years?
Keep browsing this vehicle
What other Chevy Impala parts are priced?
01wide ±199%
AC Compressor
$110median
$25$462
02wide ±153%
ABS Module
$100median
$39$345
03wide ±228%
Air Bag
$139median
$35$670
04wide ±141%
Alternator
$75median
$40$252
05wide ±116%
Axle Shaft
$100median
$18$249
06spread ±29%
Blower Motor
$60median
$30$65
07wide ±191%
Brake Caliper
$60median
$20$249
08wide ±112%
Rear Bumper Assembly
$350median
$95$881
09wide ±155%
Front Bumper
$431median
$88$1,426
10wide ±121%
Rear Bumper
$245median
$95$686
11wide ±139%
Car Radio
$133median
$25$395
12wide ±126%
Center Console
$143median
$35$395
13spread ±33%
AC Condenser
$75median
$60$110
14wide ±99%
Control Arm
$50median
$40$139
15
Differential
Price data updating
16wide ±84%
Door Assembly
$339median
$99$667
17wide ±75%
Drive Shaft
$260median
$60$450
18wide ±124%
Engine
$595median
$245$1,724
19spread ±22%
Engine Computer
$146median
$111$175
20wide ±159%
Exhaust Manifold
$71median
$24$250
21wide ±103%
Fender
$195median
$50$452
22wide ±107%
Fog Light
$115median
$30$275
23wide ±123%
Front Seat
$143median
$30$382
24wide ±131%
Fuel Pump
$75median
$34$230
25wide ±177%
Fuel Tank
$125median
$30$473
26wide ±286%
Grille
$125median
$21$736
27wide ±145%
Headlight Assembly
$484median
$99$1,500
28
Heater Core
Price data updating
29wide ±66%
Hood
$414median
$150$694
30wide ±114%
Ignition Switch
$99median
$29$254
31
Instrument Cluster
Price data updating
32wide ±162%
Intake Manifold
$70median
$35$262
33tight ±1%
Master Cylinder
$50median
$50$51
34wide ±148%
Side Mirror
$142median
$35$455
35wide ±106%
Power Steering Pump
$85median
$35$216
36wide ±93%
Quarter Panel
$300median
$200$755
37wide ±90%
Radiator
$159median
$40$325
38
Rear View Mirror
$103median
$103$103
39wide ±76%
Starter
$75median
$50$164
40wide ±149%
Steering Column
$125median
$40$413
41wide ±121%
Steering Rack
$125median
$45$348
42wide ±106%
Steering Wheel
$118median
$35$285
43wide ±185%
Strut
$65median
$30$270
44wide ±114%
Sunroof
$195median
$50$495
45wide ±114%
Tail Light
$94median
$35$249
46wide ±121%
Tailgate
$235median
$40$608
47wide ±109%
Throttle Body
$78median
$35$205
48spread ±56%
Torque Converter
$200median
$150$375
49
Transfer Case
Price data updating
50wide ±107%
Transmission
$1,598median
$330$3,734
51
Turbocharger
Price data updating
52spread ±35%
Water Pump
$50median
$30$65
53wide ±179%
Wheels
$159median
$30$600
54wide ±125%
Window Regulator
$85median
$24$237
Common questions
2018 Chevy Impala transmission control module FAQ
How much is a used 2018 Chevy Impala transmission control module?
Based on 910 priced salvage-yard listings, a used 2018 Chevy Impala transmission control module lists between $24 and $405, with a median asking price of $165.
How much does it cost to replace a 2018 Chevy Impala transmission control module?
Using a used part, a 2018 Chevy Impala transmission control module replacement typically runs $260–$465 all-in: the median used transmission control module for this year lists at $165, 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 Chevy Impala transmission control module fit another year?
Based on salvage-yard interchange data, listings for the 2018 Chevy Impala transmission control module also appear under model years 2014, 2015, 2016, 2017, 2019, 2020, 2021, 2022, 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 Chevy Impala tcm?
A tcm is another name for a transmission control module. The prices on this page cover the 2018 Chevy Impala transmission control module — median $165, from 910 listings.