The other day I had the battery light come on, so I replaced the battery. Now the battery light comes on whenever Im under 10mph. Today I was driving and the ABS and Break lights come on, and the ride wasnt feeling right. I turn around to go to the auto shop and all my guages go off, all my lights. I relize this is usually an alternator problem, but had it replaced earlier this year already. But when I turned again and had the room to give the car a little more gas, everything came back on and the ride was feeling better. Then I hit a red light, and the battery light came back on, all gauges worked, turned into the lot of the autoshop and everything was shutting down again as I parked it.
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First off, whenever you disconnect battery on Chrysler products (or about any other these days) when reconnecting ALWAYS!!! Connect ground cable (-) LAST. You can try re-connecting battery as you mentioned and "maybe" it will cure your lights. But if it doesn't have local parts store scan your fault codes & reset your lights.
You are describing a situation that would be solved by a replacement alternator. You say yours is fine ... I think I'd be inclined to have it checked by another mechanic.
The battery light comes on when you are using more power than you are making. Your car died because it had no electricity to run the spark plugs, the electric fuel pump, the computer, the lights, the instruments, the cooling fans, the security system, the automatic locks, the heater/AC - ventilation system, and other electrical powered devices required to make a modern car run.
In the good old days, a battery would run a car for weeks, in the day time (no lights) - with the only power requirement was the starter and the ignition. Today - cars are power hungry.
Yes, your car ran out of power last night and this morning it strarted fine and ran for a while. That was because your battery has SOME capability to recover overnight. Don't push your luck. Have an evaluation done by a professional mechanic.
There is a small black box under dash by steering column that has a little red button on it. Push that button and it will reset the alarm. Whenever the power is removed from the system it will trigger that alarm and flash your lights. Easy quick fix. Box is about 4" x4" and just to the left of the column. Good luck and have a great day.