Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello, my name is Bobby. Thank you for the question. If the gauge is reading hot then you need to see if the engine is overheating. This can be caused by a number of issues. How long does she need to drive it before it gets hot? As for the check engine light it can come on due to the engine running hot and it can also come on for other issues. You can have the engine scanned for codes at most auto parts stores for free. If you have this done bring me the codes and I can tell you what is going on.
I would definitely check the coolant first and take it back to the dealer. She needs to tell them that she is very unhappy with what happened and that they should take a look at it and repair it. Hopefully she turned it off in time and did not cause any damage.
If all she has to pay is $75 then that is not to bad to get the car back on the road. If you have further questions along the way please let me know.