I bet you hooked cables up direct to battery didn't you red on hot and black on beg when black should have been grounded to metal on car
That certainly wouldn't damage the battery, though. Attaching ground to the chassis is to prevent the spark from igniting hydrogen gas around the battery. In fact jumping works better if the clamps are on the battery posts, it is just much more dangerous.
It might have to do with computer just saying it happened to me so I hook one ground to battery on one car and steel bumper on other
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Is there any Fuel in your Tank
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Is the car making any sounds when you turn the key? Why do you say the battery seems fine? Please add any more details you can think of.
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