iCarsoft US V4.0 Review: A Detroit-Only Scanner for Ford, GM and Chrysler Garages
The US V4.0 trades breadth for depth on Ford, GM, Chrysler, Dodge and Jeep. We went through its coverage, coding limits and price to see who should buy it over a multi-brand tablet.
Spec sheet
- Our score
- 7.4/10
- Price
- $249.99
- Maker
- iCarsoft
- Tested
- Aug 30, 2026
Buy the US V4.0 if the vehicles in your driveway wear Ford, GM, Chrysler, Dodge or Jeep badges and nothing else. At $249.99 it gives you full-system reads, bi-directional tests and 41 service functions on a 5-inch touchscreen. Skip it if a Toyota or a BMW is in the household, and look at a multi-brand tablet instead. Coding is the thin part: it covers only some Ford, Chrysler, Jeep and Dodge models, and GM gets none.
Best forHouseholds that only own Ford, GM, Chrysler, Dodge or Jeep vehiclesThe question behind this scanner is simple. If every car you own is built in Detroit, is a make-specific tool a smarter buy than a generic scanner that claims to cover everything? For a household of Ford, GM and Chrysler vehicles, our answer is yes, with one condition that decides the whole purchase.
A note on method before we go on. This review is built from the maker's own documentation, its generation comparison tables and the little independent material that exists. We have not yet put this exact unit on a vehicle in the bay, so every figure below is labelled as a maker figure where it comes from the maker.
The condition: nothing else in the driveway
The US V4.0 ships with eight makes and variants pre-installed: Chrysler, Dodge, Jeep, Ford (US, EU and AU), GM and Holden. That is it. A Honda, a Toyota or a Volkswagen in the same household turns a $249.99 bargain into a drawer ornament.
The maker will confirm a VIN within 24 hours if you are unsure, and we would use that offer before ordering. The coverage claim is the whole product, so do not guess.
What $249.99 buys you
The page lists a 5-inch touchscreen at 854 by 410, Android, a 1.3 GHz quad core processor, 64 GB of storage and a 5000 mAh battery rated at about 6 hours. It weighs roughly 380 g. A USB-C charger you already own will charge it.
The list price is $369.95, so the maker is selling the tool at 32% off. Treat the list price as marketing and compare with the $249.99 figure.
The tool reads codes, live data and ECU information across every module it can reach, not just engine, ABS, airbag and transmission. It also does AutoVIN, which the maker says identifies a car in about 3 seconds once plugged in.
Bi-directional tests, in plain terms
A bi-directional test means the scanner sends a command and the car obeys. You tell the fuel pump to run, the cooling fan to switch speeds or the EGR valve to open, then watch whether the part responds. It turns "I think the relay is bad" into a yes or a no without pulling a panel.
The page lists over 22 active tests, from injector cut-outs to transmission solenoid sequencing. It also warns, in a compatibility notice, that the exact tests vary by brand, model, year and ECU. Believe the warning.
Coding: where the product stops short
Coding means writing settings into a control module, for example telling the truck its tires are bigger so the speedometer reads true. Here the US V4.0 is honest but narrow. Ford is covered for 2003 to 2023, with options for tire size, axle ratio, hill start assist, chimes and courtesy lighting.
Chrysler, Jeep and Dodge coding is listed model by model, such as the 2014 Jeep Grand Cherokee and the 2015 to 2017 Chrysler 200. GM is not on the coding list at all. The maker says more coverage will arrive through updates, but we would buy on what is listed today.
How it stacks up against a multi-brand tablet
The same maker's CR Max BT Enhanced costs $479.95 and covers 58 makes, with 50 service functions and a 7-inch screen. That is $230 more. For a Ford, GM and Chrysler household you would pay for brands you never use.
The comparison table also tells you what to avoid. The older V2.0 and V3.0 use buttons and USB updates and lack the 32 advanced service functions. Do not buy a cheaper used one by mistake.
What could go wrong
Independent coverage is thin. The one critical customer review we found on Trustpilot called the software closed and unreliable, and the reviewer moved to a J2534 tool. One angry reviewer is not a verdict, but it is a reason to keep the receipt. The hardware warranty is one year.
Service functions are the other trap. Oil reset, steering angle, electric parking brake and DPF routines all depend on the exact car. Look the job up first.
Who should buy it
Buy it if you own a mix of F-150s, Silverados and Jeeps, want to confirm faults before paying a shop, and do not need coding beyond what the list shows. Spend less on a code reader if you only chase check-engine lights. Step up to a multi-brand tablet if a single import ever shares your driveway, or if you want GM coding.
Our score is 7.4 out of 10. It would be higher with GM coding and a wider spread of independent testing.
What worked, what did not
Pros
- Eight American makes and variants are pre-installed, including US, EU and AU Ford
- Bi-directional tests and 41 service functions at $249.99
- CAN-FD support on 2020 and newer GM and Chrysler models
- Updates over Wi-Fi with no subscription fee
- 5-inch touchscreen and about 6 hours of battery life
Cons
- Locked to American brands, so a single import in the driveway breaks the plan
- ECU coding is limited to parts of the Ford, Chrysler, Jeep and Dodge ranges
- Service functions vary by model, year and ECU, so check the exact vehicle first
- Screen resolution of 854 by 410 is modest next to 7-inch tablets
Specifications
- Display
- 5-inch capacitive touchscreen, 854x410
- Platform
- Android, quad core 1.3 GHz, 64 GB storage
- Battery
- 5000 mAh, about 6 hours (maker figure)
- Coverage
- Chrysler, Dodge, Jeep, Ford (US, EU, AU), GM, Holden
- Service functions
- 41 (9 common, 32 advanced)
- CAN-FD
- 2020 and newer GM and Chrysler
- Updates
- Wi-Fi, lifetime, no subscription
- Weight
- About 380 g
