bahwrites Posted May 7, 2019 Share Posted May 7, 2019 I have a Lexus 2002 RX300 and need to update the navigation system. It currently has 2001/version 1. I have the following questions: 1. Do I need to load all updates since 2001 in sequence or can I just load the latest one? 2. I bought part #PT219-GN23W-13 on eBay but it says it should be loaded after 2000/version 1. Can I load it after 2001/version 1? 3. Evidently there is another disk I can buy called a software/service/firmware disc. What is that for? Thank you in advance for your consideration and assistance. Quote Link to comment Share on other sites More sharing options...
Andi2005 Posted May 7, 2019 Share Posted May 7, 2019 I own a 2005 RX330 so a little bit different. Only 1 time did I update the Nav system, and that was before smart phones. Now for navigation I use my smart phone with Waze/Google Maps to get around. Why would you spend the time and money to upgrade an antiquated system? Even when it was new, it was pretty sub-par. Good luck. Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted May 8, 2019 Share Posted May 8, 2019 Hi, I see you are back having purchased the final map update on eBay. It seems like you can do the update with the disc you bought but I'm not an expert and we are dealing with what could be termed obsolete technology. I'd say give it a try. If it doesn't work you can resort to using a portable nav device or a cell phone nav app. Quote Link to comment Share on other sites More sharing options...
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