Good morning my name is Roy and I will assist.
The reduced power light is an indication that the throttle control system has a fault. There is a sensor on the throttle body that is a common failure for this but we need the code set for the failure to further help you. I suggest taking it to a parts store and have them check the code for you. This is a free service from the parts store. Once you have the code, report back to us so we can help you get to the root cause of the failure.
If the light returns and there is no throttle response, just pull over, turn the car off and restart. That will clear the system and it will work until the fault returns.
Roy
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Wednesday, December 20th, 2017 AT 6:54 AM