IsItAGoodCar

Common Problems with the
2021–2023 Lexus NX (Mk2)

We've identified 3 known issues that can affect the 2021–2023 Lexus NX (Mk2). 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
1
Moderate
1
Minor

The 2021–2023 period has 2 more issues than the Lexus NX (Mk2) average across all year periods.

All Known Issues

Rear Motor Cable Corrosion ("Cablegate")

SeriousElectrics & Electronics

The high-voltage cable connector to the rear electric motor (MGR) is exposed to the elements. Road salt and water can cause the connector to corrode, eventually leading to a loss of AWD and a "Hybrid System Malfunction" warning.

Most affected: NX 350h AWD, NX 450h+

Estimated cost: £3,000–£5,000Affects: 2021–2024Often appears around: Any

Typical symptoms

  • •Hybrid System Malfunction warning
  • •Loss of rear-wheel drive / AWD
  • •AM radio interference

What to inspect before you buy

  • ✓Ask if the cable has been inspected or replaced
  • ✓Check for the updated cable shield/protector
  • ✓Look for any signs of corrosion at the rear motor junction if the car is on a lift

12V Battery Failure (Critical)

ModerateElectrics & Electronics

The 12V auxiliary battery on the NX Mk2 is a major pain point for UK owners, often failing after only a week of the car being parked.

Estimated cost: Warranty / £200Affects: 2021–2024Often appears around: Low mileage/infrequent use

Typical symptoms

  • •Car completely dead/won't unlock
  • •Alarm sounding weakly
  • •Login profile deleted

What to inspect before you buy

  • ✓Ask if the battery has been upgraded to the newer, higher-capacity version authorized by Lexus
  • ✓Check for the presence of a jump-starter pack

Infotainment Software Bugs

MinorElectrics & Electronics

The newer widescreen system can suffer from wireless CarPlay/Android Auto disconnects and "profile" login errors.

Estimated cost: Software UpdateAffects: 2021–2023Often appears around: Any

Typical symptoms

  • •Screen freezing
  • •Navigation maps not loading
  • •Phone connectivity drops

What to inspect before you buy

  • ✓Try to log into a user profile during the test drive
  • ✓Check the software version in the settings menu

Buying Tips for the 2021 Lexus NX (Mk2)

  • ✓Ensure all software updates have been applied to the new Lexus Link Pro infotainment system.
  • ✓Test the e-latch electronic door handles; they have a manual override, but you should know how it works.
  • ✓On the 450h+ (PHEV), check that the charging cable is present and the port opens/locks correctly.
2024 Lexus NX (Mk2)

Browse 2021–2023 Lexus NX (Mk2) in our Directory

View MOT history, registration data, and reliability scores for 2021–2023 Lexus NX (Mk2) vehicles.

View 2021–2023 Directory

Other Lexus NX (Mk2) Year Periods

2021–202320242025

Looking at a specific 2021 Lexus NX (Mk2)?

Enter the registration number to check its full MOT history, outstanding finance, write-off status, and more.

Free Vehicle Check