Reliability Guide

Common Problems with the
2021 Lexus ES

We've identified 2 known issues that can affect the 2021 Lexus ES. None are considered critical, but they're worth knowing about before you buy.

2
Known Issues
0
Serious
1
Moderate
1
Minor

All Known Issues

12V Auxiliary Battery Drain

ModerateElectrics & Electronics

The 12V battery can drain quickly if the car is not driven for more than a few days, leading to a "dead" car that requires a jump start.

Est. Repair Cost: £150–£250
Warning Signs:

Car won't unlock, Flickering dashboard lights, Hybrid system warning on startup

What to Inspect:
  • Ask if the battery has ever been replaced
  • Check for a trickle charger in the boot (a common owner addition)
  • Test the voltage after the car has been sitting
Verified by IsItAGoodCar Research Team

Brake Actuator "Squawk"

MinorBrakes

Some owners report a barking or squawking noise when the brake pedal is released, caused by the electronic brake actuator calibration.

Est. Repair Cost: Software Update / £1,500 if failing
Warning Signs:

A brief "squawk" or "bark" sound from the footwell when braking, Pulsing feel through the pedal

What to Inspect:
  • Listen carefully during the test drive for any unusual hydraulic noises when braking
Verified by IsItAGoodCar Research Team

Buying Tips for 2021 Lexus ES

  • The 2022 facelift replaced the controversial trackpad with a touchscreen; it is worth the extra cost if you value ease of use.
  • Check the 12V battery health, especially on cars that have sat in dealer lots for long periods.
  • Test the sunroof (if fitted) for any signs of water ingress or slow operation.