Traction control, stabilitrak, engine power reduced. Turning the car off an on fixed the power problem the … At all. What Does the ‘Reduced Engine Power’ Warning Light Mean? I travel 40+ miles each way to work in Atlanta traffic with speeds around 65-80 (big trucks). My 2016 1.5T LT threw up the check engine light along with reduced engine power. Sometimes, it can be a dangerous situation. When specific faults are detected electronically, the engine control module begins the process of limiting vehicle speed, gear range, and engine power. I am so frightened that this will occur when I am on my way to work and no time to recover and get off to a safe location. Apr 13 2019, 2:29am. Driving along and suddenly noticing that you have reduced engine power isn’t a feeling anybody likes. You have to watch what’s going on all around you and be very aware of staying out of the way of faster-moving traffic. It comes on in instances when the battery or lines between electrical systems in the engine … 11 Silverado 1500, been throwing a code where it cuts off power, and traction control and stabilitrak are shut off. Recommended Services. Reduced Engine Power – What’s Causing It And How To Fix It. Engine power reduced I realized I have a fuel problem but the specifics are very limited because I bought this car used in august and problems started coming about a month ago.. I’d drive maybe 5-6 miles if not more before it starts to go into that mode and now My check engine … Engine power reduced 1 Answer. Modern vehicles which use this feature are pre-programmed to limit the performance of the vehicle to prevent further damage. The reduced engine power warning message can come on your car or truck.Today’s vehicles are for the most part completely electronically controlled. The reduced engine power light is a bright yellow indicator on the dashboard of some vehicles that shows there is a problem with the power source of a car or truck. The check engine light came on and then 'Engine Power is Reduced' 'Service Traction Control' 'Service Stabilitrak' popped up. Unfortunately, the reduced engine power issue on Chevrolet trucks has more than one possible root cause. Keep in mind when I mention Chevy I'm also including the GMC trucks in this article as well. Stabilitrak and traction control needs Servicing with the message of reduced engine power have to turn off and restart engine to get it to full power but message reappears after a few minutes & engine light is on. And boy did it reduce. I will be driving and then out of nowhere the car will slow down, check engine light comes on and the message “engine power reduced” and “low traction” will come up. 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