tmo

Dealer already replaced the battery and checked the connections. I have a couple of friends with rx300's and their lights are rock solid, have to live with the flickering for now, I guess.

I removed the negative cable with the engine running and the problem got WAY worse, headlights and all other lights pulsated wildly, worse as the engine revved. I pulled the vehicle out of the garage and tried to drive it and it just stalled. I think this may be a bad alternator/ voltage regulator problem. If it is, I will expect that Lexus reimburse me for the cost of the alternator.

I'm having the same problem too. 2000 rx300. Took it back to dealer twice and they can't figure it out. They told it was "normal". Unsatisfied, I called Lexus customer service to report the problem. They called back but they said they never heard of this problem and they'd get back to me. That was 2 months ago. I give up.

I've also experienced this when turning the wheel but haven't identified a solution yet.

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My RX300 did the same thing and the dealer needed to lube the steering shaft and the sqeaking went away. It has been about a year and the sqeaking has started to return