Whistler GT138Xi Total Band Protection Laser User Guide
![Whistler GT138Xi Total Band Protection Laser Radar Detector manual cover](/images/8a318b9a06c8f12603cbce31/thumbs/thumb175x175.webp)
To install the Whistler GT138Xi, mount the detector on your windshield using the provided suction cups. Ensure it has a clear view of the road. Connect the power cable to your car's cigarette lighter or power outlet. Adjust the position for optimal angle and stability.
If your device isn't powering on, check the power connection to ensure it's secure. Inspect the fuse in the power cord; replace it if blown. Verify that your vehicle's power outlet is functioning.
"Total Band Protection" means that the Whistler GT138Xi can detect all radar bands used by law enforcement, including X, K, Ka, and laser signals. This ensures comprehensive detection of radar signals.
To reduce false alerts, use the city mode to filter out signals from automatic doors and other non-police radar sources. Regularly update the firmware and adjust the sensitivity settings based on your driving environment.
To update the firmware, download the latest software from the Whistler website. Connect your detector to a computer using a USB cable and follow the on-screen instructions to complete the update.
Ensure the detector is properly mounted with a clear view of the road. Check settings to verify that all radar bands are enabled. If the problem persists, reset the device to factory settings.
To reset the detector, hold the power and quiet buttons simultaneously for a few seconds until the unit beeps. This will restore default settings.
Yes, the Whistler GT138Xi can be easily moved between vehicles. Ensure each vehicle has a compatible power outlet and adjust the mounting for each installation.
The VG-2 alert indicates that the detector has detected a radar detector detector (RDD). This is used by law enforcement to identify vehicles using radar detectors.
To clean the detector, use a soft, damp cloth to wipe the exterior. Avoid using harsh chemicals. Regularly check the mount and power connections to ensure stability and operation.