GPS repair problems? Ask a GPS technician for answers ASAP

Ask an Expert, Get an Answer ASAP!

Garmin Nuvi 755T Problems

Has your Nuvi 755T stopped charging in your moving car? Or do need to know how to replace the fuse in your adapter? The Garmin Nuvi 755T takes GPS navigation to another level with a host of innovative features like lane assist and 3D building views to name a few. When a 755T develops a problem the user needs an accurate answer in a timely manner. The best recourse is to ask an Expert.

Read below where Experts have answered users’ questions on Garmin Nuvi 755T problems.

How to troubleshoot a Garmin Nuvi 755T which turns itself off when plugged into the car charger? 

Case Details: The device displays a low battery warning first.

Check if the plug on the car charger displays a red or green light with the ignition on. If no light is displayed then the fuse in the charger could have blown so the GPS is not being charged. Attached is an illustration of the charger showing the fuse at one end. The end piece will need to be unscrewed to access it for replacement.

How to fix a two-year-old Nuvi 755T which has suddenly gone blank though connected to the car adapter?

First, check if the battery in the device is good by charging it from a computer for about 4-5 hours then disconnecting it and powering it up. If the battery holds charge for 15 minutes then it is good and the problem is elsewhere. If it does not hold charge then it needs to be replaced. If the battery is good check the car adapter fuse which might have blown. The fuse, for which a replacement is easily available, is located at the top of the adapter. If the fuse is good then the adapter is probably defective and needs to be replaced. 

Why does a Nuvi 755T not recharge from an adapter in a travelling car?

Case Details: It has been tried on more than one socket in the vehicle and the GPS holds charge when charged from a computer.

If the Nuvi does not charge when connected to a live socket in a moving vehicle, either something is defective within the device or the adapter cord connecting the device to the adapter is faulty.

Is it possible to self-replace a Garmin Nuvi 755T battery?

It is possible to do it oneself if the necessary skills and tools are available. For step-by-step instructions on battery replacement ask an Expert. Alternatively, the device could be returned to Garmin who will replace the battery and service the device for a flat fee.

How to troubleshoot a Nuvi 755T which does not register correct letters/numbers when keyed in?

It would seem that the touch screen needs to be recalibrated. Here is how it’s done:

  • Turn off the device.
  • Touch the middle of the screen.
  • Turn the device on then slide the power button to the right.
  • Keep the pressure on the center of the screen till the calibration screen displays.
  • Follow the on-screen prompts.
  • To unlock the screen slide the switch to the middle position.

If this does not work then the software might need to be reloaded through a PC.

Where can lifetime updates for a Garmin Nuvi 755T be purchased?

Here is a link for lifetime updates:

Lane assist is one of those exceptional features which is what endears the Nuvi 755T to its users and makes this navigational device truly indispensable. When a user wants a quick solution to a problem or help in troubleshooting one, ask an Expert. Experts are always online and ready to provide assistance and offer solutions to Garmin Nuvi 755T problems.

Please type your question in the field below

3 verified Electronics Technicians are online now

Electronics Technicians on JustAnswer are verified through an extensive 8-step process including screening of licenses, certifications, education and/or employment. Learn more

Greg A.


Bachelor's Degree

2609 positive reviews
Sijad H.


Associate Degree

1548 positive reviews

Customer Service

Industrial Technologist

28 positive reviews
See all Electronics Technicians