Vehicle won't pass 40mph the battery save mode have activated. Now vehicle will not start.
Hi There, This can be caused by a loose battery cable which is often times the problem. Try checking to be sure they are connected properly. Also, there is a sensor that has 3 small wires running to it that is likely taped to one of the large battery cables. This sensor can fail at times as well causing this to happen. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your car.
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