Slight humming noise when using the All Speed Cruise Control
12-04-19, 10:13 PM
#1
Lexus Test Driver
Thread Starter
Slight humming noise when using the All Speed Cruise Control
I've been noticing my car makes a slight humming noise when using the All Speed Cruise Control, this can be heard when the car is braking and slowing down on its own, especially when the radio volume is low or off, basically in a quiet environment with self driving on. The noise isn't coming from the engine but from the electronics under the dash I think.
Is this normal or a sign of problem?
Is this normal or a sign of problem?
12-04-19, 10:25 PM
#2
Racer
Totally normal. It's just the car braking on its own. Sounds like some sort of pump or motor. I've had a Ford Fusion & Infiniti Q50 that both had adaptive cruise control. Both made similar noises while braking themselves. The GS makes the quietest and more refined sounding noise in comparison to the other two systems.
Last edited by signdetres; 12-04-19 at 10:29 PM.
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ItzFilyO (12-04-19)
12-04-19, 10:48 PM
#4
Lexus Test Driver
Thread Starter
Yea I think it's the CD player trying to spin during braking. 
12-05-19, 09:16 AM
#5
Lexus Test Driver
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