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Lexus Problems

RepairPal has identified the most common problems for 43 Lexus models based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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168
Known Problems

Occasionally, the Check Engine Light is illuminated due to failures in the evaporative emission (EVAP) system. Our technicians tell us that proper diagnoses is generally required to confirm the exact fault causing the warning light to come on.

Our technicians tell us that some navigation system problems may be corrected by installing an updated navigation map disc.

Various user interface issues regarding GPS, radio system, and heater controls, along with bluetooth operation have been addressed with a software upgrade. Our technicians recommend that if you have issues with these systems, checking for the latest software should be the first step in diagnoses.

An intermittent no start condition may be caused by a failed "Push Start" switch. Replacing the failed switch should correct this concern.

Vehicles equipped with the Lexus Dual Mode Mobile phone system may experience poor quality sound, particularly from land-line calls. A redesigned telephone computer and microphone are available to correct this problem.

The multi-cluster display screen may remain blank and navigation system errors may be noted. Our technicians tell us that these issues can often be corrected by reloading current software upgrades.

When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.

There are reports of intermittent failures with the heating and air conditioning control. The digital display might fail or the control might fail to switch between heater functions.

All wheel drive models may develop a creaking type noise from the front suspension when driving over uneven road surfaces. Our technicians tell us revised front sway bar bushings are available which may correct this concern.

The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.

An abnormal fan belt noise may be noted. Our technicians tell us a revised fan belt tensioner is available to correct this concern.

The motor for the rear window sunshade in the Lexus LS400 is known to fail. When this occurs, the sunshade will not extend over the window, and a grinding noise is heard until the motor fails as well. 

Replacement of the sunshade assembly is necessary to correct this failure, however, removing the fuse for the sunshade will stop the motor from making the irritating grinding noise. 

The motor for the rear window sunshade in the 2001-2006 Lexus LS430 is known to fail. When this occurs, the sunshade will not extend down the window, and a grinding noise is heard until the motor fails as well. 

Replacement of the sunshade assembly is necessary to correct this failure, however, removing the fuse for the sunshade will stop the motor from making the irritating grinding noise.