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I have a similar situation: on my 98 MKIV the battery in one of the 2 master keys, died. I replaced and now it only locks the doors and starts the engine (full functions before the battery change). The 2nd master key works fine, full functions but its casing is dying and the battery was replaced at the same time as the 1st key (last year). I'd be grateful for any suggestions and/or thoughts. Thank you.

The "beep-beep" when locking the car with the remote can be turned on/off so I would guess it's off. Not sure if you have a button to turn it on/off or needs to be reset by Lexus. Mine has always been off and I am happier with it that way. The seat memory I know nothing about. Best wishes

If memory serves, and this is all based on previous readings, when the brake pads are worn out the electrical connection between the sensor and the warning light is severed triggering the warning light and so the solution is to replace the sensor/s which come with the appropriate wiring. This is something ideally done at the point where the pads are replaced. (for future reference, if possible, it is obviously cheaper not to let the pads get that low - I changed mine when only 10% was left on the pads and the sensors were still intact and did not require replacement). I do not know whether it is economical to replace the sensors - the sensor for my windshield wiper fluid went recently and Lexus informed me that the new sensor would cost £200 (British pounds) - at that price I enjoy looking at the low windshield wiper fluid warning light! As for the brake pads light - do you really need it? Here, in the UK, every time I take the car into Lexus or other garage they automatically inform me as to the condition of the brake pads! All the best

Not quite sure what you mean, but have looked at my rev counter and cruising at 70mph it is just above 2 (slightly higher when under acceleration and just below 2 at 60mph). All the best

My Ls400 does this, my VW Passat did and my Porsche 928 also indicates a higher speed than the TomTom. Possibly they do it for fifferent reasons.. all the best

Agree with you entirely but I am trying to establish exactly what/when "proper tb service on time" is. On mine the tb was replaced (by Lexus) at 64K mls (in 2004), the car is now at 90K mls and the dealer is telling me that it should be replaced at the 100K mls service whereas the maintenance book says every 60K which would suggest 120K not 100K! The maintenance book makes no mention of time. Some confusion then, and, of course, the Lexus price here, in the U.K., just for changing the tb converts into U.S.$821! Naturally the engine would be just a tad more...

I believe the non-interference engine was only the mkI & II not the mkIII ('95-'97) I have a 1998 MkIV also and would love to know the answer. I think the MKIV is an interference engine and my maintenance book says 60Kmls but there is no mention of time. The car is now at 90K mls and the belt was done (by Lexus) at 64Kmls (in 2004) The Lexus dealer tells me that it should be done again at the 100K mls service because it's been 5 years already. Opinion on the UK LOC is split with someone who has a letter from a Lexus dealer stating it should be done at 100K mls (and no mention of time) and others with different views.

Thank you for the info - I was equally surprised to have this experience but at least now I understand why. The tires are ok and I thought the VSC should have dealt with it - am still waiting for the owner's manual.