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Thanks for the reply
The tire pressure light and vsc light normally turn on right after the check engine light and are irrelevant at this time, the next step would be to get diagnostic codes from the computer, this requires a code reader connected to the diagnostic port, most people don't have one of these but most auto parts stores like Autozone can help you get these codes at no charge, if you could do that at your convenience it would help a lot in finding out what the problem may be, I would need the actual code numbers, I still kind of think that when they replaced the alternator something was not reconnected but let's find out what the codes are and it will be easier to identify and where to go next.
That's no problem, I'll be here most of the day.