20 Most Recent 2002 Lexus RX 300 Questions & Answers


This could be caused by a variety of things.....but, coolant temperature is a significant input to the transmission control module for the overdrive gear engagement. If the transmission ECU determines the engine is not coming up to operating temperature, it will delay the engagement of the overdrive. There is also the possibility that the throttle position sensor has an issue as well....is the check engine lamp illuminated??? A scan of the engine control module and the trans module is in order....a good tech. will be able to discover the cause very quickly!

2002 Lexus RX... | Answered on Sep 10, 2019


The 1999-2003 Lexus RX300 models have a common failure of the engine computer that causes the harsh shifting of the transmission. You need to get the computer (ECM - Engine Control Module) rebuilt or replaced before it causes permanent damage to the transmission. Even if the transmission is already ruined, the ECM will still need to be repaired. Most often, the transmission is fine though, and rebuilding the ECM will restore the smooth shifts that the Lexus should have. Circuit Board Medics can rebuild the ECM and reprogram it so that you only have to plug it back in when you get it back. See the link below:

http://circuitboardmedics.com/1999-2003-lexus-rx300-hard-transmission-shifting-ecm-ecu-computer-repair/

2002 Lexus RX... | Answered on Jun 10, 2019


Yes, I would have to agree that it is a wheel bearing if the noise is only coming from the left side. Not uncommon on this year and model.

2002 Lexus RX... | Answered on Dec 09, 2017


Have you checked the switch on the brake pedal?
Need to find out if computer is part of brake light circuit if everything else is working.

2002 Lexus RX... | Answered on Sep 15, 2017


if it has only happened the twice when you have went over high snow , it seems to me the sensors have just got wet then sent the signal through to the computer as they normally do , i would'nt worry about it unless it came on constantly ....

2002 Lexus RX... | Answered on Apr 21, 2017


Maybe the battery was the problem but I would have that alternator rechecked while hot & cooled off & ck for electrical shorts. Good luck

2002 Lexus RX... | Answered on Apr 10, 2017


So I talked to someone who suggested my battery might be dead and that I try charging it, but as "Bullmtnbiker" mentions, the horn blasted as soon as I connected the negative terminal of the battery to charge. Finally, I just tried connecting it and running into the vehicle to start it, and that stopped the horn blasts immediately and it started and ran fine. I just hooked up to a trickle charge overnight to get the wounded battery back in shape.

2002 Lexus RX... | Answered on Sep 29, 2016


Past due for a tune-up? Dirty fuel injectors, clogged catalytic converter, dirty/clogged air filter, low tire pressure, transmission fluid low...? Dirty fuel filter?

2002 Lexus RX... | Answered on Jul 11, 2016


leave well alone as the confort system is playing up this is a compliated set of microprocessors and relays in a box built into teh motor and the only way to sort it is to replace the whole motor assembly ,

2002 Lexus RX... | Answered on Dec 30, 2015


broke the crank. that is not easy to do. you got a piston that locked up or there was a major problem when they made the crank. crankshaft broke where? I seen them break at the end where its close to the transmission and that's from beating on the car to much. most times something else will break before the crank. you will have to pull the motor apart to find the real reason.

2002 Lexus RX... | Answered on Mar 18, 2015

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