RX400h

Good point. I often can find an electronic version of the service manual, but there are cases when only article/video comments are found. I guess we can say that those should be taken "with a grain of salt". Thanks for your comments.

When this light comes on, it’s important to get your vehicle inspected by a professional as soon as possible to prevent any potential damage. It’s hard to say exactly what the issue is without a proper diagnosis. Your Lexus dealer or a trusted mechanic should be able to read the specific error code from the OBD system and determine the exact cause of the problem. That being said, I should also advise you to check or have checked your battery. Sometimes a failing battery or even a cell with no visible liquid in it can cause very strange warning lights to illuminate.

Hello, Chris. Car & Driver's observed fuel economy was 23 mpg: 2024 Lexus TX Hybrid Review, Pricing, and Specs (caranddriver.com)

Hello, Justin. Have you already tried reprogramming the power windows? Turn the key to the on position. At each window switch, lower the window to halfway, then immediately raise it all the way up and hold the switch up for at least 1 second. Repeat this process for all 4 doors Also, you may get lucky in finding a wrecked GX470 at a scrap yard.

The torque specification for the valve cover bolts on a 2004 Lexus RX330 is 9 ft-lbs. However, I couldn’t find the specific tightening order for the rear valve cover bolts in my current resources. You may be able to find an online service manual that should include what you are looking for.

What are the Possible Causes of the DTC P1127 Lexus? NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes. Faulty Electronic Throttle Control System (ETCS) Actuator Electronic Throttle Control System (ETCS) Actuator harness is open or shorted Electronic Throttle Control System (ETCS) Actuator circuit poor electrical connection Read more: https://www.autocodes.com/p1127_lexus.html It may be that locating the specific cause is not exactly simple for the doityourselfer.

I found this information by running a Bing CoPilot search, given your information:

It looks like this sound was not present when you bought the vehicle? Is your RX still under warranty? If there is a Toyota-equivalent vehicle, then typically the service cost would be less expensive than at a Lexus dealership. I've had our spark plugs and coolant changed at our local Toyota dealership. Its reduction in cost for the maintenance tasks were significant.