Common Problems with the
2015 Lexus CT 200h

At high mileages, carbon buildup in the Exhaust Gas Recirculation (EGR) system restricts flow, increasing cylinder temperatures and eventually blowing the head gasket. This is the most common major engine failure on high-mileage CT 200h cars, particularly those used for frequent short journeys that prevent the EGR system from reaching self-cleaning temperatures.

Dust, pet hair, and road grime accumulate on the hybrid battery air intake filter located near the rear passenger seat base. A clogged filter reduces airflow, triggering a 'Hybrid System Fault' warning and reducing fuel economy. In extreme cases, prolonged overheating can shorten battery life.

The CT 200h’s front suspension uses drop links and anti-roll bar bushes that wear over time, particularly on F Sport models with stiffer springs. Worn links produce a dull clunk over speed bumps and uneven road surfaces, and can lead to inner-edge tyre wear if not addressed promptly.

Due to regenerative braking, the rear discs often don't get 'cleaned' by the pads, leading to surface corrosion and pitting that causes MOT failures. The issue is especially pronounced in damp UK winters where road salt accelerates rust formation on the lightly used mechanical rear brakes.

Early CT 200h models fitted with the Remote Touch mouse-style controller suffer from laggy cursor movement, unresponsive inputs, and occasional screen freezes. Over time, the controller mechanism wears, making menu navigation frustrating. Screen delamination can also occur on pre-2014 cars, reducing readability in bright sunlight.

The CT 200h’s 12V battery is located in the boot and is relatively small. Cars used mainly for short urban trips or left unused for long periods can suffer rapid discharge, triggering false 'Check Hybrid System' warnings, resetting clock and trip settings, and preventing the car from entering READY mode.