Lexus RX (AL20)
The fourth-generation RX feels far more modern than the older car and is usually extremely dependable. The hybrid drivetrain is rarely the problem; most UK ownership issues are wear-related on a heavy luxury SUV or involve the electric tailgate and infotainment hardware.
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Common Faults & Reliability
These are the most common documented problems for the Lexus RX (AL20), sorted by their typical impact and frequency.
Rear Motor Cable Corrosion ("Cablegate")
high severityOn AWD hybrid models, the high-voltage cable connector to the rear motor is prone to severe corrosion from road salt and moisture. If it fails, the car may lose AWD capability and display a hybrid system fault.
Rear Brake Disc and Caliper Corrosion
low severityBecause the hybrid system handles so much of the slowing, the rear mechanical brakes can corrode and bind if the car mainly does gentle town driving.
Power Tailgate Strut or Spindle Failure
medium severityThe motorised tailgate can become slow, jerky, or fail to latch properly as the powered struts and spindle mechanisms wear with age.
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