UK Reliability Directory

Lexus RX (AL20)

Production Years: 2015 - 20224 Documented Faults

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 severity

On 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.

Est. repair cost:£3,000–£5,000

Rear Brake Disc and Caliper Corrosion

low severity

Because 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.

Est. repair cost:£250–£500

Power Tailgate Strut or Spindle Failure

medium severity

The motorised tailgate can become slow, jerky, or fail to latch properly as the powered struts and spindle mechanisms wear with age.

Est. repair cost:£450–£1,000
View All 4 Documented Issues

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