You could also search the threads, been covered several times. Quick and easy: Set odometer to total miles, turn off ingnition, hold odo button in while turning on ignition, wait for countdown on odometer reading - presto it's reset.
Didn't mean for response to be snarky. I've had to do the reset myself a few times as it's over 100 miles (one way) to the Lexus dealer and only like 10 to our local Toyota dealer - they don't have a clue on resetting the maintenance light, but they are like $40+ cheaper for an oil change. Of course you don't get your car hand-dried either.....
Minkel, should work the same whether itís a 330 or 350. I believe that you need to watch the odometer count down, rather than relying on just waiting 10 seconds or so. Lets go through procedure again;
1.) Make sure odometer shows mileage (not trip A or B) 2.) With odometer showing, shut off ignition. 3.) While pressing the odometer/trip mileage button, turn ignition to ĎONí. 4.) Hold button in and watch until the odometer reading turns back to straight lines.
This has always worked for me, and Iíve done it several times.
Hmmmm, I was under the impression that the 330 and 350 were the same in that context. My neighbors 350 reset easily with those procedures. I'm guessing at this point you may want to try the owners manual, as there may be a slight difference between the late 330, early 350 and current 350. Otherwise, I'm stumped.