You are in the limp mode, you need to have the car scanned for the code for what's causing it to go into the limp mode.
My 04 did the same thing. The MAF sensor had to be changed.
I owned a chevy cruze did that all the time,big issue no recall at all for that.we paid 160 to fix it,had warranty but it did not cover that.we drove on the winter highway it reduced power,we shut off car worked again,barely
2007 Pontiac Grand Prix Base
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Maintenance & Repair
2004 GrandPrix-I just got my car back from AAmco who put in a transmission and a thermostat and both front wheel bearings. The display on my dash says "Reduced Engine Power".-- what does that mean?
2004 Pontiac Grand Prix
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Maintenance & Repair
Was checking fuses to see why I didn't have low beams to find out switch went out. When checking fuses the Reduced Engine Speed light came on. Now every time I drive my car the Reduced Engine Spee...
2004 Pontiac Grand Prix GT1
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Maintenance & Repair
Every winter when the weather drops my check engine light comes on in my 2007 Pontiac Grand Prix.
2007 Pontiac Grand Prix GXP
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Maintenance & Repair
Changed water pump and after putting it together car will start but runs like crap then traction control comes on then reduced engine power and stalls out ran fine before
2007 Pontiac Grand Prix GT
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Maintenance & Repair
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