Skip the auto shop - Our mechanics make house calls

Q: High-pitched constant beep

asked by on

I recently purchased a used 2010 Lexus GX460. One owner, 83000 miles on it, it now has 86,00 miles. Two days ago it began to make this high pitched noise that if I were a dog it would set me to howling (but it is driving me crazy). No lights go on. Not heard outside of the car. Sound occurs while engine running and a few seconds after engine turned off security light goes on when sound stops. Can drown out sound with radio. Hear sound with AC off or in and with all other gadgets off/on. Help!!

My car has 86000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. There are two places that this can normally come from. The air suspension compressor is known to make this kind of high pitch sound. The third row seats will also make this kind of high pitch sound when not fully raised or lowered. Try running them through a full cycle from up to down and back up. Once this is done the sound should go away. If it doesn’t and you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Over heating

Hello. Thank you for writing in. It sounds like you need to replace the thermostat housing, and possibly the thermostat as well. The temperature gauge on your dashboard is commonly misunderstood. The thermostat and temperature gauge will only give you...

Q: Overheating

Overheating is not unusual for the Disco. If it makes you feel any better, you probably didn't do any real damage with the washer fluid. I suspect the problem was already there. If the reservoir was low enough that you...

Q: Average tune up cost on Nissan versa 2010 1.6 4 cycl.

There is no average cost of a tune up because such a service is no longer specified in the Factory Service Manual. Tune-up is a term that was mainly used decades ago when carburetors existed and ignition system distributors required...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.