Map Update for 2023 GLC 300

I live in Pennsylvania but plan to drive to California and would like an up-to-date nav base rather than the 2022 software that came with the vehicle.
I know I can use Google Maps in Car Play, but I like the voice capability of the "Hey Mercedes" and the large central multimedia display.
Please help with any DIY suggestions
I live in Pennsylvania but plan to drive to California and would like an up-to-date nav base rather than the 2022 software that came with the vehicle.
I know I can use Google Maps in Car Play, but I like the voice capability of the "Hey Mercedes" and the large central multimedia display.
Please help with any DIY suggestions
The instructions can be found here
Last edited by 818benz; Feb 27, 2026 at 08:50 PM.

Do I need to find the Activation Code? Or is this not necessary when updating the factory installed OEM Nav Map Database that came installed in the vehicle?
Do I need to find the Activation Code? Or is this not necessary when updating the factory installed OEM Nav Map Database that came installed in the vehicle?
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