Jackson TS Posted September 2, 2022 Share Posted September 2, 2022 I have a 2008 400h. Rex\cently I have notice the mph is N\now it is 23.5 down from 26.8. What happens when the battery pack is totally dead. Can I drive with the engine only? Quote Link to comment Share on other sites More sharing options...
RX400h Posted September 2, 2022 Share Posted September 2, 2022 No, but consider this: There are RX400h owners on this forum who have over 260,000 miles on their odometers. Unless you have hit 300,000 miles on your RX, I don't think you have anything to worry about. A gradual drop in mileage over 20 years and many miles is normal. The same thing happens to your cell phone and laptop batteries. Quote Link to comment Share on other sites More sharing options...
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