OBD2 GPS Tracker: How It Works, Cost and Setup

An OBD2 GPS tracker plugs into the diagnostic port under a vehicle's dash and starts reporting in about a minute, with no tools and no wiring. Here's how it works, what it tells you, and when a hardwired tracker is the better pick.

Key takeaways

• It plugs in with no tools. Cars and light trucks sold in the U.S. since 1996 have an OBD2 port.
• Besides location, it can read trouble codes and check-engine alerts.
• It moves easily between vehicles, and a driver can unplug it just as easily. For trucks you're keeping, a hardwired unit is harder to tamper with.

How an OBD2 GPS tracker works

The port powers the tracker and gives it access to the vehicle's diagnostic data. The tracker gets its position from GPS and sends it over a cellular network to your phone or computer, where you can see every vehicle and set alerts for areas like your yard or a job site ( what is a geofence? ).

OBD2 vs hardwired GPS tracker

OBD2 plug-in

• Install: plugs in, one minute, no tools
• Engine data: trouble codes and check-engine alerts
• Backup battery: included
• Moves between vehicles: yes, unplug and replug
• Best for: vans and trucks that change often, or getting started fast

Hardwired

• Install: behind the dash on vehicle power, by any installer
• Engine data: no engine codes (location, power and inputs)
• Moves between vehicles: no, wired to one vehicle
• Best for: trucks you're keeping, and when you don't want it unplugged

Where is the OBD2 port?

Usually under the dash on the driver's side, near the steering column. Some sit behind a small cover. Heavy-duty trucks often use a different diagnostic port, so check yours before you order.

What does it cost?

GPS Leaders' OBD2 plug-in is $69 per device plus $15.98 a month per vehicle, with no contract and a 3-year warranty. It reports every minute, plus on every turn. See fleet GPS tracking .

FAQ

Can a driver unplug an OBD2 tracker?

Yes, that's the trade-off for the easy install. If that's a concern, a hardwired tracker sits behind the dash out of reach.

Does an OBD2 tracker read engine codes?

Ours reads trouble codes and sends check-engine alerts.

Can I move it to another vehicle?

Yes. Unplug it and plug it into the next vehicle's port.

How do I work out what my vehicles cost to run?

Try the free cost per mile calculator .