Whether you’re a business owner managing a fleet or a private vehicle owner, the idea of someone secretly tracking your car can be unsettling. GPS trackers are powerful tools when used responsibly, for things like theft recovery, teen driver safety, or business efficiency. But in the wrong hands, they can raise serious concerns about privacy and security.
At BrickHouse Security, we’re leaders in GPS technology, and that includes helping people understand how it works and how to spot devices that shouldn’t be there. If you suspect someone has placed a GPS tracker on your car without your permission, this guide is here to walk you through the process of finding it.
Table of Contents
Why Someone Might Place a GPS Tracker on Your Car
Before diving into the how-to, it helps to understand the common reasons GPS trackers are used:
- Fleet Monitoring: Employers may install GPS trackers on company vehicles to monitor routes, fuel efficiency, and driver behavior.
- Repossession: Lenders sometimes use trackers to recover vehicles in default.
- Theft Protection: Some vehicles come with built-in GPS trackers for anti-theft purposes.
- Personal Surveillance: In rare and often illegal cases, individuals may place a GPS tracker without the vehicle owner’s knowledge.
What Does a GPS Tracker Look Like?
GPS trackers come in different shapes and sizes, but most are small, black boxes, sometimes as compact as a deck of cards. Some models have magnets for easy attachment to metal surfaces, while others are wired into a car’s power system.
There are two main types:
- Battery-powered trackers: These are easier to hide and don’t require a power source.
- Hardwired trackers: Connected directly to the car’s electrical system, typically under the dashboard or near the OBD-II port.
How to Detect a GPS Tracker on Your Vehicle: Step-by-Step
Let’s break this down by location, starting with the most common hiding spots.
1. Check the Exterior First
Start with a visual inspection of the outside of your vehicle.
Look Under the Vehicle:
Use a flashlight and a mechanic’s mirror to look underneath your car. Pay special attention to:
- The wheel wells
- The rear bumper area
- The undercarriage near the trunk or exhaust system
Pro Tip: Battery-powered trackers often have magnets and are stuck to metal surfaces. Look for small, black plastic boxes that don’t appear to belong.
2. Inspect the Interior of the Car
Next, check inside the cabin:
Look Under the Seats:
Trackers can be tucked under seats, especially if they have a clear line of sight through the windows.
Glove Box, Center Console, and Storage Compartments:
Check every compartment. Small devices can be hidden in these areas.
3. Examine the OBD-II Port
The OBD-II port (usually beneath the dashboard on the driver’s side) is a favorite for plug-and-play GPS trackers.
- If you see a device plugged in and you don’t recognize it, it could be a GPS tracker.
- Some models pass through data and may look like diagnostic tools, but they’re still capable of location tracking.
4. Check the Wiring and Electrical System
Hardwired trackers are more difficult to find.
Look Behind the Dashboard:
This requires some disassembly, so you may want to enlist a professional. You’re looking for:
- Unusual wiring
- Small plastic boxes with antennas
- Devices connected to the fuse box or battery
5. Use a GPS Bug Detector
Electronic bug detectors (also called RF detectors) can help identify signals sent by a GPS tracker.
- These devices scan for radio frequency transmissions.
- Turn off all electronics and phones in the car when scanning.
- Sweep slowly around common hiding areas.
Note: Some GPS trackers only transmit when the vehicle is in motion. In that case, scanning while someone drives may reveal active signals.
6. Consult a Professional
If you’ve done a thorough search and still have concerns, consider hiring a professional mechanic or private investigator who specializes in vehicle sweeps.
What to Do If You Find a GPS Tracker
If you find a GPS tracker and it’s not something you authorized, here’s what to do:
- Do Not Immediately Remove It: If the tracker may be part of an investigation or surveillance, tampering with it could have legal consequences.
- Document the Device: Take clear photos of the tracker and its placement. Note any serial numbers, wiring, or logos.
- Contact Law Enforcement: If you suspect illegal tracking, notify your local police department. They can help identify the device and investigate further.
Preventing Unauthorized GPS Tracking
To avoid unwanted tracking in the future:
- Park in secure, well-lit areas
- Regularly inspect your vehicle
- Invest in a GPS bug detector
- Use anti-GPS tracking tools like signal jammers (Note: Illegal in many states) or Faraday bags (legal and effective for blocking signals when parked)
Know Your Rights
It’s legal to install a GPS tracker on a vehicle you own. However, placing a tracker on someone else’s vehicle without consent is illegal in most U.S. states.
If you’re a business owner tracking company vehicles, make sure employees are informed and consent is documented, especially in states with strict privacy laws.
Final Thoughts from Todd
At BrickHouse Security, I’ve spent nearly two decades testing and developing GPS solutions to help protect people, vehicles, and assets. GPS tracking is an incredible technology, but like any powerful tool, it must be used responsibly.
If you suspect unauthorized tracking, stay calm, stay informed, and take the right steps to protect your privacy. And if you’re looking for legitimate, legal, and reliable GPS tracking solutions for personal or business use, we’re here to help.
By Todd Morris, Founder & CEO of BrickHouse Security
