You are correct. Oil change at 10,000 miles. The computer is set for 5,000 miles on all Lexus, so you still get the light at about 4,500 miles and it will probably come on and stay on at 5,000, miles. I guess it saves programing the software for different cars. I did my 5,000 mile service at 4,500 miles because I was going on a long trip and did not want to stop to have it done on the trip.