问:车发动不起来

车钥匙板电池就死了。改变了他们。汽车不会锁定或解锁。我们在点火制动关键是困难的。一切点亮但不会开始。刹车是非常辛苦。我开车当天早些时候和什么是错的。试图开始当天晚些时候不会开始。汽车报警器去当试图进入汽车使用的关键。我把车钥匙在点火沉默警报。 I hit the unlock button on key pad to stop alarm. It worked but then the car would not start. The key pad also will not lock or unlock car. It also will not remote start any longer. Had AAA test battery they said it was fine so I had the car towed home. Never has this happen in the six months I owned the car. Also the brake lights come on when pressed but they are extremely hard. The EPS light stays on but not sure for how long due to the fact that the car just did this. Checked the oil is is fairly dark but not low. Should I check the brake fluid level. Please help! Could it be my key pad disabling the car?

我的车有35387英里。
我的车有一个自动变速器。