Is this normal?
On my 2015 Jeep Grand Cherokee if I'm idling and press the brake pedal a few times the brake pedal becomes still as if the engine was off but once I start moving its ok again. Is this some kind of feature? Thanks
Our 2015 Altitude does the same thing, I think it may be using up available vacuum while idling because of a check valve. This is just my theory of mine because I don't believe anything is malfunctioning.
Yes it is normal. You're pressurizing the brake system. The master cylinder is sending pressure to the calipers via the brake fluid. There's a vacuum line off the master cylinder that runs to somewhere in the engine.
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