Limp mode

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Well, that just plain stinks. I'm sorry you're dealing with that. Reversing the polarity like that can cause significant damage to the electrical system. Even after replacing the alternator, battery, and fuses, the low power code suggests there may still be underlying issues. It's possible that other components, such as the engine control module (ECM) or various sensors, have been damaged as well. A thorough diagnostic scan by a qualified mechanic is essential to identify all affected components and assess the extent of the damage. Don't hesitate to seek professional help to get your Chrysler 300 back on track. If you have any other questions feel free to call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!