just as your Honda update is a Honda product. The parts manager looked into it, and was able to order the update from HERE.
When I called my dealership (Laura GMC, the second largest GMC dealer in the USA), they had no clue that HERE had released a map update. In the case of my 2017 GMC, I contacted HERE directly and was able to get my new house on a new street in a newly developed part in the back of an existing subdivision into the latest GMC map. but the maps are compiled and produced by HERE developers. I understand that various auto manufacturers market their respective map updates. Which was almost exactly the link that was posted Where it asks you to select your model so I chose civic and I get this link: Where I choose the 2017 button and got this link: Pushing on the " Please click here to continue " button take me to this link:
Please click below to continue to the download site and learn more: Map updates ensure that the changing world outside is accurately reflected in your navigation system, making it much easier to reach your destination. Updating your Honda navigation system map is an essential part of maximizing your system's benefits and performance. The following vehicles come with 5 years of complimentary map updates:
That link presents me with a list of Honda Models, so I chose Civic and the 2016 model year which gives this link: Going to the above site first wants you to specify your car, in this case I chose Honda and it take me to: HERE Navigation produces, compiles, provides and sells updates for 40 brands of vehicles around the world.