I have been experiencing intermittent symptoms of what seemed like either a battery issue or starter contact wear on my 2000 LX470. I have owned it for about a year with 146,000 mi. and the PO did not have much for service records, but with that many miles I would have guessed the starter contacts would have been replaced. Today the first two times it started were very sluggishly. The third time it hesitated and then the starter went on and would not stop even with the ignition in the 'off' position and the key removed. The engine never tried to fire while it was continuously cranking over. I ended up having to disconnect the battery terminal to get the starter to stop. I tried reconnecting the battery a bit later and the starter was still stuck on. I ended up having to get it towed back to the house. I have replace starter contacts on my 100's before after they had intermittent starting issues, so am pretty familiar with that job. I am curious if anyone else has experienced a similar issue with the starter stuck on and whether the issue involved replacing anything other than starter contacts and the plunger.