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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. High-pitched constant beep

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: The car pulls to the right upon deceleration

Hi. It should be a fairly simple cause. I suggest checking your tires for uneven wear because that is the number one cause of pulling next to an alignment being out up specifications. So have the alignment checked as well....

Q: My 2015 Lexus GX460 parking brake needs adjusting, is there any way to adjust it? The car is AWD , an think it has 4 wheel disk br

There are adjusters within the parking brake shoe assembly on each rear wheel. To access the adjusters, the rotors are removed, and through an iterative process, the adjustment is made. If you desire that your parking brake be adjusted, please...

Q: Truck is not getting fuel until holding the ignition in for a few seconds.

You may very well be on the right track with this and you should check the control module to be sure. You may also want to check the fuel pressure regulator as well to be sure you are getting enough...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
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.