Lexus GX470 Problems

RepairPal has identified the most common problems with the Lexus GX470 as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

Refine by vehicle
×
Choose your vehicle
15
Known Problems

Drivers may hear a loud noise, much like a vacuum cleaner, coming from their engine on cold starts. This affects the 2003-2004 Lexus GX470. 

The noise is from the secondary air pump, which sends hot air to the catalytic converter when the engine is cold. This allows the catalytic converter to clean exhaust better, and lower emissions while the engine is warming up.

Pump failure may result in:

Fixing the issue involves removal of the intake manifold, and replacement of the secondary air pump.

A clunk type noise may be noted from the rear of the vehicle just before or just after coming to a stop. Our Technicians tell us a revised rear driveshaft and rear suspension control arms are available to correct this concern.

Various radio issues may develop, including: volume control, radio shuts off by itself, or the radio screen is scrambled or blank. Our technicians tell us an improved radio is available to address these concerns.

The Check Engine Light may illuminate with various EVAP system fault codes stored. Our technicians tell us this may be caused by a sticking EVAP Purge Vacuum Switching valve. An improved valve is now available to remedy this problem.

The Check Engine Light may illuminate with five EVAP system related fault codes stored. Our technicians tell us this is generally caused by a faulty EVAP system pump module, which is an integral part of the charcoal canister. A revised canister is available to correct this concern.

The sunroof may not close correctly or jam due to alignment issues. Our technicians tell us a wind deflector kit is available to correct this issue.

The air conditioning switch may flash due a faulty AC compressor clutch relay. The AC operation may be erratic while the light is flashing. Our technicians tell us an improved relay is available which should correct this concern.

The Check Engine Light may illuminate with a stored code P2742 for a transmission fluid temperature sensor fault. Our technicians tell us a revised wiring harness is available which should correct this concern.

The Check Engine Light may illuminate with any of the following codes stored: P0171, P0174, P2195, or P2197, signifying a lean running condition. Our technicians tell us this is commonly caused by a faulty air fuel ratio sensor. A revised sensor is available to correct this concern.

The airbag warning light may illuminate whit code B0111 and/or B0116 stored. Our technicians tell us the an updated wiring harness is available which should correct this concern.

The Check Engine Light may illuminate with EVAP system related fault codes. Our technicians tell us this can be due to a gas cap issue, a revised gas cap is available which should correct this concern.

Our technicians tell us that GPS errors that may develop can generally be correct by installing an updated Navigation map disc..

An inconsistent or unusual feeling may be noted on brake application. Our technicians tell us a new anti-squeal shim is available which should correct this concern.

A seat position sensor fault code, B1153 may be set. Our technicians tell us a revised wire harness is available which should correct this concern.