All You Need To Know About The 1999 Lexus Rx300 Brake Fluid Reservoir Cap

LSC 93161150 GENUINE Brake Fluid Reservoir Cap NEW from LSC


The 1999 Lexus RX300 is a luxury SUV that offers a smooth ride and great handling. However, like any other vehicle, it requires regular maintenance to ensure its longevity and safety. One of the critical components that require attention is the brake fluid reservoir cap. In this article, we will discuss everything you need to know about this essential part.

What is a brake fluid reservoir cap?

The brake fluid reservoir cap is a cover that sits on top of the brake fluid reservoir. Its primary function is to keep the brake fluid from evaporating and to prevent dirt and debris from entering the system. It is crucial to keep the brake fluid at the right level because low levels can cause brake failure.

Signs of a faulty brake fluid reservoir cap

If you notice any of the following signs, you may have a faulty brake fluid reservoir cap: – Low brake fluid levels – Brake fluid leaks – Spongy or unresponsive brakes – Brake warning light on the dashboard

How to replace the brake fluid reservoir cap

Replacing the brake fluid reservoir cap is a simple task that you can do yourself. Here are the steps: 1. Locate the brake fluid reservoir under the hood. 2. Remove the old cap by turning it counterclockwise. 3. Clean the reservoir and the new cap with a clean cloth. 4. Place the new cap on the reservoir and turn it clockwise until it clicks into place. 5. Check the brake fluid level and add more if necessary.


The brake fluid reservoir cap is a small but essential part of your 1999 Lexus RX300’s braking system. Regularly checking and replacing it can prevent brake failure and keep you and your passengers safe on the road. If you notice any signs of a faulty cap, replace it immediately to avoid any accidents or costly repairs.