Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Symptom

Suspected Area

Link

Low or spongy pedal

Fluid leaks in brake system

-

Air in brake system

Front piston seals (worn or damaged)

Rear piston seals (worn or damaged)

Brake master cylinder sub-assembly (faulty)

Brake booster push rod (adjustment necessary)

Parking brake actuator O-ring

Brake drag

Brake pedal free play (insufficient)

Parking brake actuator

Front disc brake pad (cracked or distorted)

Rear disc brake pad (cracked or distorted)

Front brake piston (stuck)

Front brake piston (seized)

Rear brake piston (stuck)

Rear brake piston (seized)

Vacuum leaks in booster system

Brake master cylinder sub-assembly (faulty)

Brake booster push rod (adjustment necessary)

Brake pull

Front brake piston (stuck)

Rear brake piston (stuck)

Front disc brake pad (oily)

Rear disc brake pad (oily)

Front brake piston (seized)

Rear brake piston (seized)

Front disc (scored)

Rear disc (scored)

Front disc brake pad (cracked or distorted)

Rear disc brake pad (cracked or distorted)

Hard pedal but braking inefficient

Fluid leaks in brake system

-

Air in brake system

Front disc brake pad (worn)

Rear disc brake pad (worn)

Front disc brake pad (cracked or distorted)

Rear disc brake pad (cracked or distorted)

Front disc brake pad (oily)

Rear disc brake pad (oily)

Front disc brake pad (glazed)

Rear disc brake pad (glazed)

Front disc (scored)

Rear disc (scored)

Vacuum leaks in booster system

Noise from brakes

Front disc brake pad (cracked or distorted)

Rear disc brake pad (cracked or distorted)

Front disc brake cylinder mounting bolt (loose)

Rear disc brake cylinder mounting bolt (loose)

Front disc (scored)

Rear disc (scored)

Front disc brake pad support plate (loose)

Rear disc brake pad support plate (loose)

Front disc brake cylinder slide pin (worn)

Rear disc brake cylinder slide pin (worn)

Front disc brake pad (dirty)

Rear disc brake pad (dirty)

Front disc brake pad (glazed)

Rear disc brake pad (glazed)

Front brake anti-squeal shim (damaged)

Rear brake anti-squeal shim (damaged)

    Brake System
    ...

    Vacuum Pump
    ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Using an external device: Using USB memory device
    Connecting a USB memory device enables you to enjoy music from the vehicle speakers. Select "USB" or "USB2" on the audio source selection screen. USB top screen Pressing the "MEDIA" button displays the USB top screen from any screen of the selected source. ■ Selecting a file Press the ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Steering Heater Switch: Components
    COMPONENTS ILLUSTRATION *1 STEERING HEATER SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) *2 LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY *3 COWL SIDE TRIM BOARD LH *4 NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY *5 FRONT DOOR SCUFF PLATE LH *6 HOOD LOCK CONTROL ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.0189