A pulsating brake pedal on your Prado 120 usually means warped brake discs. This guide explains the likely causes, which parts to inspect first, and whether you can keep driving safely.
Likely Causes of Brake Pedal Pulsation
The most common culprit is warped brake discs. Over time, repeated hard braking or rapid cooling (like driving through water after a long descent) can cause the discs to wear unevenly or develop thickness variations. This creates a vibration you feel through the pedal. Other possible causes include uneven pad deposits from glazed brake pads, or a slightly out-of-calibrated ABS wheel speed sensor—though this is far less common.
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