Reliability Guide

Common Problems with the
2018 Lexus RX (AL20)

Lexus finally addressed the need for a seven-seater by introducing the RX L. Featuring a stretched rear body, it offered a third row of seats, though space was tight for adults.

What changed for 2018

  • Introduction of the RX L, a stretched seven-seat version.
  • Minor equipment upgrades across the range.

Common MOT watch-outs

  • !Wear on suspension components, particularly on the heavier RX L models.
  • !Tyre wear on the inner edges.
3
Known Issues
0
Serious
2
Moderate
1
Minor

All Known Issues

Power Tailgate Strut or Spindle Failure

ModerateElectrics & Electronics

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

Front Lower Arm Bush Wear

ModerateSuspension & Chassis

The RX is heavy, and its front lower-arm bushes can soften or tear, leading to vague steering, inner tyre wear, and a dull thump over poor surfaces.

Est. Repair Cost: £350–£700

Rear Brake Disc and Caliper Corrosion

MinorBrakes

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

Buying Tips for 2018 Lexus RX (AL20)

  • On the RX L, test the motorized folding mechanism for the third-row seats to ensure it operates smoothly.
  • Check the rear climate control functions correctly on seven-seat models.