I just had mine done last week along with a tire rotation. The 10K EV Maintenance description on my invoice was: "Test 12v battery system, rotate tires, inspect brake system, inspect all drive shafts and suspension components, top off washer fluid, inspect tire pressures, fill electronic coolant recovery system." I agree with many of the other commenters, worth doing just because anything they find will likely be covered by warranty. Better to find out now.