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.

A: Hi, thanks for writing in. There are two pl...

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

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: Engine oil leak

Hello there, thank you for asking about your 2007 Mercury Mountaineer. This is a fairly common issue on many cars. Your car is equipped with a V-8 motor which has two separate "sides" of the motor where the cylinder heads...

Q: Car is in limp mode and making strange sound when beginning to rev.

Hi there: When the oxygen sensors have a reading that is similar to each other, it is an indication that the catalytic converter is not working as efficiently as it is intended. If the voltage of the downstream oxygen sensor...

Q: My 2010 BMW 535 xDrive (n54) is making a ticking noise

It is not uncommon for BMW's to tick, but there are solutions that are helpful. Keeping the revs up (instead of lugging around like it was a big V8) is one way to do this. Keeping it at about 2000...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.