Your Garmin Automotive device should not shut down or reboot while plugged into a vehicle. There are four main resolutions to this issue.

Make sure your device is plugged directly into your vehicle with its original Garmin power cable
- Do not use a splitter, USB, or third-party cable
- Your cigarette lighter adapter and receptacle need to be debris-free and clean in order to make a proper mechanical and electrical connection
- See Buying Automotive Accessories Directly from Garmin for instructions to purchase a replacement Garmin power cable

Remove any memory cards in the device
- If this resolves your issue, format the memory card
- For instructions go to the Support Center and enter the product name or the serial number of your device. Once your device is selected click Other and search for "Formatting a microSD/SD Memory Card"
Ensure the device software is up to date
- Updating Automotive Maps and Software with Garmin Express
Make sure it is not too hot in the vehicle
- For more information see Charging Factors for an Automotive Device

Shutdown logs can be sent to Garmin Support for review if the issue continues. For instructions see .