2018 GMC Terrain transmission control module price snapshot
- Low
- $20
- Average
- $91
- High
- $405
Year-specific price guide
Used 2018 GMC Terrain Transmission Control Module prices
Year-specific used transmission control module pricing for the 2018 GMC Terrain, built from real salvage yard and junkyard listings with condition grade and fitment detail.
Price summary
A used 2018 GMC Terrain transmission control module costs $20 to $405, with a median asking price of $71. Based on 1,084 priced salvage yard listings across the US, compatible across 2013–2024 (12 model years), updated Sep 13, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$66
Grade B (good)$76
Grade C (fair)$111
USD
Condition comparison
Price by part grade
Grade AClean / low wear$20–$405727 listings
Grade BStandard used$25–$405305 listings
Grade CVisible wear$69–$1208 listings
Grade XUngraded$30–$24544 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $20–$405 | 727 | |
| Grade BStandard used | $25–$405 | 305 | |
| Grade CVisible wear | $69–$120 | 8 | |
| Grade XUngraded | $30–$245 | 44 |
Median by grade
Grade price comparison
Grade A$66
Grade B$76
Grade C$111
Ungraded$75
Median asking price by seller-reported condition grade · $20–$405 overall range
Replacement cost
What is the 2018 GMC Terrain transmission control module replacement cost?
- Used part
- $71
- 2018 GMC Terrain median asking price
- Labor
- $95–$300
- 1–2 hours at $95–$150/hr
- Estimated total
- $165–$370
- 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
Body Control (BCM), (center console), active noise control (opt NKC), 2.0L50 listingsInterchange 2018–2020$76$66 – $321
Communication, telematics (opt UE1), (center dash), ID 8429832850 listingsInterchange 2018–2022$51$41 – $75
Body Control (BCM), (center console), active noise control (opt NKC), 1.5L49 listingsInterchange 2018–2022$51$41 – $333
Body Control (BCM), (center console), body control, ID 1351967246 listingsInterchange 2018–2021$51$41 – $331
Communication, telematics (opt UE1), (center dash), ID 8412841846 listingsInterchange 2017–2019$75$46 – $249
Driver Assist, rear park assist (opt UD7), (RH quarter panel)39 listingsInterchange 2018–2019$66$24 – $153
Information-GPS-TV, human machine interface, (center dash), ID 8433177638 listingsInterchange 2018–2020$150$40 – $220
Body Control (BCM), (center console), body control, ID 1359464636 listingsInterchange 2018–2020$71$25 – $331
Communication, wireless charger, (center dash), ID 2324879136 listingsInterchange 2015–2019$61$41 – $160
Information-GPS-TV, human machine interface, (center dash), ID 8433177536 listingsInterchange 2018–2022$111$46 – $245
Body Control (BCM), (center console), active noise control (opt NKC), 1.6L, ID 8428133435 listingsInterchange 2018–2021$120$44 – $321
Information-GPS-TV, human machine interface, (center dash), ID 8454690231 listingsInterchange 2018–2022$111$46 – $245
Door, hands free rear closer, (in tailgate), ID 8419216418 listingsInterchange 2018–2021$110$55 – $405
Body Control (BCM), (center console), active noise control (opt NKC), 1.6L, ID 8433272112 listingsInterchange 2018–2019$187$81 – $305
Door, hands free rear closer, (in tailgate), ID 2327543010 listingsInterchange 2018–2020$79$66 – $176
Communication, wireless charger, (center dash), ID 841624978 listingsInterchange 2017–2019$137$60 – $322
Year-specific context
How does the 2018 GMC Terrain compare?
The 2018 guide is based on 1,222 observed listings, including 1,084 with posted prices. Its $71 median is 5% below the GMC Terrain guide's $75 median.
Among the 7 model years with current price data, 2018 ranks #2 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 GMC Terrain transmission control module cost in other years?
Keep browsing this vehicle
What other GMC Terrain parts are priced?
01wide ±110%
Engine
$1,495median
$200$3,500
02wide ±187%
Transmission
$674median
$100$2,622
03wide ±124%
Front Bumper
$272median
$23$695
04wide ±235%
Rear Bumper
$215median
$45$1,055
05wide ±81%
Hood
$607median
$31$1,014
06wide ±159%
Fender
$265median
$25$866
07wide ±181%
Headlight Assembly
$766median
$30$2,800
08wide ±321%
Tail Light
$105median
$20$694
09wide ±159%
Alternator
$90median
$30$316
10wide ±277%
Starter
$65median
$20$380
11wide ±151%
Radiator
$100median
$20$322
12wide ±149%
AC Compressor
$100median
$35$332
13wide ±380%
Transfer Case
$260median
$40$2,016
14wide ±282%
Axle Shaft
$121median
$34$717
15wide ±191%
Strut
$75median
$35$321
16wide ±121%
Steering Rack
$178median
$30$462
17wide ±115%
Grille
$270median
$26$645
18wide ±229%
Side Mirror
$115median
$20$547
19wide ±205%
Turbocharger
$200median
$75$893
20wide ±73%
AC Condenser
$165median
$55$295
21wide ±525%
Wheels
$190median
$5$2,000
22wide ±364%
Fuel Pump
$100median
$30$758
23wide ±257%
Water Pump
$50median
$15$272
24wide ±175%
Power Steering Pump
$110median
$30$415
25wide ±159%
ABS Module
$116median
$30$400
26
Differential
Price data updating
27wide ±71%
Engine Computer
$120median
$30$200
28wide ±841%
Throttle Body
$55median
$25$950
29wide ±207%
Brake Caliper
$55median
$21$249
30wide ±6261%
Drive Shaft
$201median
$51$25,220
31wide ±99%
Tailgate
$1,626median
$45$3,250
32wide ±282%
Intake Manifold
$75median
$27$450
33wide ±163%
Control Arm
$75median
$40$285
34wide ±105%
Blower Motor
$109median
$20$249
35wide ±118%
Exhaust Manifold
$350median
$75$900
36wide ±100%
Steering Column
$186median
$40$413
37wide ±115%
Fuel Tank
$150median
$40$384
38wide ±135%
Window Regulator
$100median
$35$305
39
Instrument Cluster
Price data updating
40wide ±86%
Torque Converter
$175median
$100$400
41wide ±138%
Steering Wheel
$120median
$39$371
42wide ±159%
Ignition Switch
$100median
$25$343
43wide ±136%
Car Radio
$99median
$30$299
44wide ±181%
Heater Core
$116median
$40$460
45wide ±136%
Rear View Mirror
$110median
$20$320
46wide ±230%
Sunroof
$269median
$85$1,320
47wide ±157%
Master Cylinder
$99median
$20$331
48wide ±147%
Fog Light
$94median
$40$316
49wide ±210%
Center Console
$100median
$25$445
50wide ±209%
Air Bag
$220median
$30$950
51wide ±115%
Door Assembly
$850median
$50$2,000
52wide ±78%
Quarter Panel
$420median
$206$863
53wide ±102%
Rear Bumper Assembly
$575median
$59$1,237
54wide ±133%
Front Seat
$170median
$25$478
Common questions
2018 GMC Terrain transmission control module FAQ
How much is a used 2018 GMC Terrain transmission control module?
Based on 1,084 priced salvage-yard listings, a used 2018 GMC Terrain transmission control module lists between $20 and $405, with a median asking price of $71.
How much does it cost to replace a 2018 GMC Terrain transmission control module?
Using a used part, a 2018 GMC Terrain transmission control module replacement typically runs $165–$370 all-in: the median used transmission control module for this year lists at $71, 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 GMC Terrain transmission control module fit another year?
Based on salvage-yard interchange data, listings for the 2018 GMC Terrain 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 GMC Terrain tcm?
A tcm is another name for a transmission control module. The prices on this page cover the 2018 GMC Terrain transmission control module — median $71, from 1,084 listings.