Lexus RX 1999-2003 Brakes Specifications

The 1999-2003 Lexus RX uses front and rear disc brakes. The front brake rotors are typically 11.7 inches in diameter, while the rear rotors are 11.3 inches. Brake pads are semi-metallic or ceramic, depending on the model. Ensure compatibility by checking the VIN or consulting a Lexus parts guide. Always verify fitment for specific trims, as variations may exist between AWD and FWD models.

Regular maintenance includes inspecting brake pads and rotors every 12,000 miles or as recommended in the owner's manual. Replace pads when thickness is below 3mm. Rotors should be resurfaced or replaced if worn or warped. Brake fluid should be flushed every 30,000 miles or 2 years. Always check for uneven wear, noise, or vibration, which may indicate alignment or caliper issues.

To replace brakes, lift the vehicle and remove the wheels. Unbolt the caliper and hang it securely. Remove old pads and inspect the rotor. If replacing the rotor, remove the caliper bracket. Install new rotors and pads, then reassemble the caliper. Pump the brake pedal to restore pressure before driving. Torque bolts to manufacturer specifications and test brakes at low speed.

Squeaking may indicate worn pads or glazed rotors. Inspect pads for wear and replace if necessary. Vibrations often suggest warped rotors, which require resurfacing or replacement. Check for uneven wear or debris lodged in the brake assembly. If issues persist, inspect calipers for sticking or improper lubrication. Always ensure proper installation and torque specifications.

Use high-quality ceramic or semi-metallic brake pads for improved performance and reduced dust. Ensure rotors are properly resurfaced or replaced during pad changes. Regularly flush brake fluid to maintain hydraulic efficiency. Avoid aggressive driving to reduce wear. Consider upgrading to slotted or drilled rotors for better heat dissipation and performance in demanding conditions.