How to find a GPS tracker on your car

Signs your car may be tracked

• Someone knows where you’ve driven without you telling them
• Your iPhone shows “AirTag Found Moving With You,” or Android warns about an unknown tracker
• A small box, loose wires, or tape under the dash that wasn’t there before
• Something plugged into the OBD-II port that you didn’t install
• Unexplained battery drain on a car that sits for a few days
• The vehicle came from a rental fleet, company fleet, or buy-here-pay-here lot

The five kinds of car trackers

1. Plug-in OBD-II trackers. They plug into the diagnostic port under the dash. Easy to install, easy to find.
2. Battery-powered magnetic GPS trackers. They use a cellular connection and stick to metal underneath or inside bumpers. They need recharging every few weeks, so someone has to come back to them.
3. Bluetooth item trackers. AirTag, Tile, and Samsung SmartTag have no GPS of their own. They report location through nearby phones, and they’re small enough to hide anywhere in the cabin.
4. Hardwired aftermarket trackers. Installed by fleets, dealers, lenders, or someone with a few tools. They’re spliced into the car’s wiring and often hidden behind dash panels.
5. Factory telematics. OnStar, Uconnect, and Ford SYNC Connect modules are built in by the manufacturer. They aren’t hidden, but they report location and driving data continuously, and most owners never think of them as trackers. See what they collect.

10 places to check, step by step

Budget 20 to 30 minutes. You’ll want a bright flashlight, a small inspection mirror, and gloves. Do it in daylight with the engine off.

1. The OBD-II port. Under the dashboard on the driver's side, near your left knee. Plug-in trackers are the most common kind because they take five seconds to install and draw power from the car. Look for anything plugged in, including a short splitter cable that hides a device further up under the dash.
2. Under the dash and around the steering column. Hardwired trackers are small black boxes, often wrapped in tape or foam and tied to a harness with zip ties. Look for wires that don't match factory looms: different colors, electrical tape, or tap connectors spliced into existing wires.
3. Inside the front and rear bumpers. Battery-powered trackers usually sit in a magnetic, weatherproof case. Run your hand along the inside lip of each bumper cover and any flat metal surface behind it.
4. Wheel wells. Feel above each tire, behind the plastic wheel-well liner where it meets the body. Use a flashlight and gloves because edges can be sharp.
5. The frame rails and underbody. Only when the vehicle is parked on flat ground with the engine off and cool. Never get under a car held up only by a jack. Check flat steel surfaces along the frame, the trailer hitch, and behind the rear license plate.
6. Under the seats and in seat pockets. Check under both front seats, between seat cushions, inside seat-back pockets, and under floor mats. This is the most common spot for an AirTag, Tile, or Samsung SmartTag.
7. The trunk or cargo area. Lift the cargo floor and check the spare-tire well, the side trim panels (they usually pop off by hand), and around the taillight access panels.
8. Glove box, center console, and sun visors. Empty them completely. Check the gap behind the glove box and anything tucked into the visor mirror cover.
9. Near the battery in the engine bay. A hardwired tracker needs constant power, so look for extra wires attached to the battery terminals or an inline fuse that doesn't look factory.
10. Behind the rear bumper, third brake light, or roof trim. Less common, but used by more determined installers because they are hard to check without removing trim.

Scan for trackers with your phone

iPhone

iOS alerts you automatically when an AirTag or other Find My-compatible tracker that isn’t yours travels with you. Tap the alert to play a sound on it, which helps you locate it inside the car. Make sure Location Services, Bluetooth, and Tracking Notifications are turned on. Full walkthrough: how to tell if there’s an AirTag in your car.

Android

Android has Unknown Tracker Alerts built in. You can also run a manual scan: open Settings → Safety & emergency → Unknown tracker alerts → Scan now while sitting in the car. The menu name varies slightly by phone maker.

RF and GPS bug detectors

Phones only find Bluetooth trackers. A cellular GPS tracker shows up on an RF detector only while it’s transmitting, and many report just every few minutes or only when the car moves. Sweep with the detector while someone else drives, and treat a clean result as “probably clear,” not proof.

Found a tracker? What to do next

If you think it was placed to stalk or follow you

Don’t remove it yet. Photograph it in place, note the date, and contact police. It’s evidence, and removing it can tip off the person tracking you. See the hotline information above.

If it belongs to a lender or leasing company

Many buy-here-pay-here and subprime auto loans require a GPS or starter-interrupt device. Check your contract. Removing it while the loan is active usually breaches the agreement, and we don’t remove these devices. More on dealer and lender GPS trackers on used cars.

If a previous owner, fleet, or dealer left it behind

On a vehicle you own outright, it’s yours to remove. Unplug an OBD-II unit, remove a magnetic unit, and have a hardwired unit disconnected properly so you don’t leave spliced wires behind. Our local removal service handles exactly this.

If it’s the factory telematics module

That’s the tracker every modern GM, Stellantis, and Ford vehicle ships with. Our step-by-step guides show how to disable it reversibly, with no cutting and no effect on airbags or brakes:

• How to disable OnStar on Chevy, GMC, Buick, and Cadillac
• How to disable the Uconnect TBM on Dodge, Ram, Jeep, and Chrysler
• How to disable the Ford SYNC Connect modem on Ford and Lincoln