can fixd be used on multiple cars

[Legolas]

Yes, a FIXD sensor can be used on multiple cars as long as each vehicle is a 1996 or newer model year gasoline-powered car or light truck sold in the United States. This broad compatibility is due to the standardized OBD-II (On-Board Diagnostics) port, which is mandated in all such vehicles. The FIXD device itself is just a hardware sensor; the real limitation is with the accompanying smartphone app, which allows you to create and manage separate profiles for each car you scan.

The process is straightforward. You plug the single FIXD sensor into the OBD-II port of the first car, open the FIXD app on your phone, and connect via Bluetooth. The app will recognize the vehicle and allow you to save its profile (e.g., "2015 Honda CR-V"). To use it on another car, you simply unplug the sensor, plug it into the second vehicle's OBD-II port, and either select the existing profile for that car or create a new one. The app can store an unlimited number of vehicle profiles, making it ideal for families or individuals with several cars.

However, a key limitation involves the FIXD Premium subscription. While the sensor hardware works universally, the premium features—like check engine light code descriptions, repair estimates, and maintenance reminders—are tied to a single vehicle. If you want these advanced diagnostics for a second car, you would need to purchase an additional subscription for that vehicle profile.

Vehicle Compatibility Factor	Details	Data Point / Example
Model Year Compatibility	Works with gasoline-powered cars and light trucks model year 1996 and newer.	1996 Toyota Camry, 2023 Ford F-150
OBD-II Port Location	The port is typically found under the dashboard near the driver's knees.	Common in vehicles from over 30+ manufacturers.
Diesel Vehicle Support	Generally not compatible with most diesel-powered vehicles.	Excludes many diesel trucks like a 2018 Ram 2500.
Motorcycle/EV Support	Not designed for motorcycles or fully electric vehicles (EVs).	Will not work on a Tesla Model 3 or Harley-Davidson.
App Vehicle Profiles	The FIXD app supports creating and saving an unlimited number of vehicle profiles.	A single sensor can monitor a family's 3-car fleet.

[LaCarson]

Absolutely. We have one FIXD sensor that we move between our minivan and my husband's truck. It takes two seconds to plug it in. The app on my phone remembers both vehicles, so it knows which one I'm scanning. The only catch is that the detailed reports for the check engine light are only active for one car unless you pay for another subscription. For just reading basic codes on both, it works perfectly.

[VonLeo]

Yep, the hardware works on any car with an OBD-II port. The sensor is just the key; the app is the lockbox holding the info for each car. You get one 'premium' key with the initial purchase. If you want premium access to a second vehicle's detailed data—like repair explanations—that's a separate in-app purchase. For basic code reading across multiple vehicles, you're good to go.

[BriannaDella]

As a used car buyer, this was my main question. I can confirm the FIXD scanner is fantastic for checking out different potential purchases. I've used my one sensor to scan three different cars I was considering. I just created a new temporary profile for each one, got the basic health report, and deleted the profiles after I made my decision. It’s an invaluable tool for due diligence without needing multiple devices.

[GabrielaLynn]

From a technical standpoint, the answer is yes, with a clear distinction between hardware and software. The Bluetooth OBD-II dongle is universally compatible. The FIXD application's architecture allows for multiple vehicle VINs to be registered to a single account. The subscription model gates the advanced diagnostic layers and predictive maintenance features on a per-vehicle basis. So, multi-car use is supported, but full functionality for each car incurs an additional cost.