Having problems with your 2000 Lexus RX 300 ?
Transmission! Sometimes the transmission will not shift into high gear after stopping at a stop light unless the vehicle is turn off and restarted? This is for a 1999 Lexus RX 300.
Transmission problems in the RX300 are common for those who never flush the transmission fluid. I would strongly urge you to quit driving your RX300 and get it to a dealership where they can flush the transmission fluid. There is no transmission fluid filter (per say) but there is a "screen" inside the transmission that needs to be flushed out (this serves as the filter). Pull out your dipstick for the transmission and smell the transmission fluid - does it smell burned? I hope not, but regardless, take it to a dealership and get the tranny flushed and see if that makes a difference. Also, continue to flush the transmission every 60,000 miles at most! Lexus says that you do not need to flush the transmission, but I think you do. I have a 2001 Lexus RX300 and I have had no problems with the tranny and I've flushed it at 60,000 miles and then again at 115,000 miles. I now have just a little over 120,000 on it. It's a good running vehicle but you need to care for it!
Your transmission is going into a default mode.Have your dealership check for codes.Sounds like a failed speed sensor.
Repair Help & Product Troubleshooting for 2000 Lexus RX 300
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