That annoying noise
#1
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#3
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It's explained in the Owner's Manual. If I remember correctly it's priming the braking system.
I too found it quite unnecessary when I'm spending all day at the vehicle (not driving it), and often getting in and out of it.
I too found it quite unnecessary when I'm spending all day at the vehicle (not driving it), and often getting in and out of it.
#5
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The sound you hear when you open the door, put in the key, or otherwise get ready to drive is the ABS System being primed. There is a possibility, as expressed by some, that some sounds are the airbag system being set up but I doubt it. Lately I have been getting some squeals from the battery pack area (in extreme heat - 110+) here in desert southern CA. It sounds like a venting.
Mike
Mike
#6
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The sound is the accumulator for the braking system. Since there's no guarantee you'll have engine vacuum available when you want to brake, the system uses a pump to pressurize the braking system.
You'll also hear a self-test of the system after you exit the car and lock up (about 5 minutes afterwards). This is part of the reason why Ford advises against DIY brake jobs. You have to put the brake system into maintenance mode so it doesn't pressurize while you've got the calipers taken apart!
You'll also hear a self-test of the system after you exit the car and lock up (about 5 minutes afterwards). This is part of the reason why Ford advises against DIY brake jobs. You have to put the brake system into maintenance mode so it doesn't pressurize while you've got the calipers taken apart!
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hsolo142
Toyota Highlander Hybrid
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05-17-2008 02:46 PM