Question about Lexus RX 400h

I hear a single knock in drivers side wheel area when braking firmly. I don't hear when braking softly.

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86 Answers

I would have your ABS system checked out. If it is just one KNOCK, it could be your ABS starting to engage. If it were pad / rotor problems, it would be a continuous knock until you stopped.

Posted on Mar 17, 2010

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