TomTom GPS devices are usually quite reliable, and can route you across town or even across the country. Like all GPS units, however, TomTom systems rely on a satellite signal to determine your location. If the signal is lost, the device cannot guide you. You can often solve this problem by checking for a few basic things, such as signal blockage or outdated software. Some situations can delay the acquisition of signal. If you are using the TomTom for the first time, or you’ve traveled a significant distance with the GPS turned off, the unit may need extra time to determine your position. Be patient and give the device ample time to lock on to the signal. It is possible for a heat-reflecting or “athermic” windshield to block the GPS signal. To check for this problem, allow the TomTom to acquire signal while you are outside of your vehicle. Move the unit onto the car dashboard. If the GPS loses the signal when you move inside the vehicle, the windshield may be to blame. You can use TomTom’s MyDrive or TomTom HOME applications to check the status of your software and update the GPS. These programs are usually included on a CD that comes with your GPS unit. Consult your TomTom user manual for detailed instructions on how to update your device. You can also download software from TomTom’s website (see Resources). If you completely reset the TomTom, all of your personal settings and favorites are lost. You should only reset the device as a last resort, and make a note of any favorite addresses that you want to save for future use. The TomTom may require up to 45 minutes to acquire a signal after the factory reset. Writer Bio
