
To check for a tracking device on your car, begin with a thorough physical inspection of common hiding spots, such as under the vehicle, inside the wheel wells, and near the OBD-II port (On-Board Diagnostics port, typically used for vehicle diagnostics). Use a flashlight and mirror to check hard-to-see areas. If you suspect electronic tracking, consider using a radio frequency (RF) detector to scan for signals, as many tracking devices emit RF. For advanced detection, consult a professional automotive security expert. Remember, this method isn't foolproof; if you have serious concerns, involve law enforcement.
Start by visually examining the exterior and interior. Look for any unusual attachments, wires, or magnetic boxes. Common locations include the bumper, under the chassis, and inside the glove compartment. Pay attention to areas with easy access, like the trunk or engine bay. If you find something suspicious, do not touch it—contact authorities.
Next, use technology to your advantage. GPS trackers often have limited battery life and may transmit data periodically. An RF detector can help identify signals between 150 MHz and 1 GHz, which are typical for tracking devices. Sweep the car slowly, focusing on spots where devices are commonly hidden. Some detectors can also pick up cellular signals if the tracker uses a SIM card.
If you're not confident, seek professional help. Automotive shops or private investigators offer tracking device sweeps using specialized equipment. This is especially recommended if you're in a high-risk situation, like a contentious divorce or business dispute.
Below is a table with supporting data on common tracking device characteristics to aid your inspection:
| Tracking Device Type | Typical Size (inches) | Battery Life (days) | Common Hiding Spots | Detection Method |
|---|---|---|---|---|
| Magnetic GPS Tracker | 3x2x1 | 30-60 | Under chassis, wheel wells | Visual inspection, RF detector |
| OBD-II Port Tracker | 2x1x0.5 | Continuous (draws car power) | OBD-II port | Physical check, unplug |
| Hardwired Tracker | Varies | Permanent | Wired to car battery | Professional sweep |
| Battery-Powered RFID Tag | 1x1x0.2 | 7-14 | Inside seats, dash | RF detector at 125 kHz |
| Cellular Tracker | 4x3x1 | 14-30 | Glove box, trunk | Scan for cellular signals |
| Miniature Tracker | 1x1x0.5 | 10-20 | Under carpets, vents | Detailed visual search |
Always prioritize safety. If you discover a device, document it with photos and report it to the police. Regular checks can deter tracking, but stay aware of your surroundings.

I check my car every few weeks because I'm big on privacy. I just run my hands under the bumpers and look inside the wheel wells—anything magnetic sticks out. If I'm extra suspicious, I use a cheap RF detector from online; it beeps near weird signals. It's quick, maybe 10 minutes tops. I've found that most trackers are pretty obvious if you know where to look, like near the OBD port. Don't overthink it; start simple.

From my experience tinkering with cars, I'd say start with the OBD-II port—it's a common spot since it's easy to plug in. Grab a flashlight and check for anything that doesn't belong. I also recommend listening for faint beeps or using a multimeter to test for unusual power drains. If you're tech-savvy, there are apps that can detect RF signals, but they're not always reliable. Keep it practical; often, a good visual scan does the trick.


