Rear Brake Disc Corrosion
MinorBrakesRegenerative braking means the rear friction brakes do relatively little work on the IS 300h, so discs can corrode badly and fail MOT inspections despite otherwise easy lives.
Est. Repair Cost: £200–£400
Reliability GuideCommon Problems with the
Common Problems with the
2020 Lexus IS (XE30)
The final year the IS was officially sold in the UK market before Lexus withdrew it to focus on SUV models. These late cars represent the pinnacle of the XE30's development and are exceptionally reliable.
What changed for 2020
- •Final production year for the UK market.
- •Availability of high-specification run-out editions.
Common MOT watch-outs
- !General wear and tear; these models are exceptionally reliable.
- !Minor interior trim rattles.
2
Known Issues
0
Serious
0
Moderate
2
Minor
All Known Issues
Weak 12V Battery Causing Hybrid Warnings
MinorElectrics & ElectronicsA tired auxiliary battery can trigger misleading warning messages, slow startup and odd behaviour even though the main hybrid system is healthy.
Est. Repair Cost: £150–£250
Buying Tips for 2020 Lexus IS (XE30)
- ✓Late models hold their value exceptionally well due to their legendary reliability; verify the condition justifies the price.
- ✓Ensure the car has a full Lexus service history to maintain the extended hybrid battery warranty.