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. 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. Nothing better than going down the highway and the the car has no grunt anymore. Traction Control Light is on Inspection: $79.99 - $89.99: 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 … Keep in mind when I mention Chevy I'm also including the GMC trucks in this article as well. What Does the ‘Reduced Engine Power’ Warning Light Mean? When specific faults are detected electronically, the engine control module begins the process of limiting vehicle speed, gear range, and engine power. I can shut off engine and let sit for 30 seconds and re fire and keep going with 0 issue. Unfortunately, the reduced engine power issue on Chevrolet trucks has more than one possible root cause. Turning the car off an on fixed the power problem the … 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. Sometimes, it can be a dangerous situation. At all. Modern vehicles which use this feature are pre-programmed to limit the performance of the vehicle to prevent further damage. Apr 13 2019, 2:29am. Traction control, stabilitrak, engine power reduced. 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 … And boy did it reduce. Back in the day, before these electronically controlled throttles, everything was cable actuated. The check engine light came on and then 'Engine Power is Reduced' 'Service Traction Control' 'Service Stabilitrak' popped up. The reduced engine power warning message can come on your car or truck.Today’s vehicles are for the most part completely electronically controlled. 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. 11 Silverado 1500, been throwing a code where it cuts off power, and traction control and stabilitrak are shut off. From every button and switch on the dash down to the ‘fly-by-wire’ throttle control system. My 2016 1.5T LT threw up the check engine light along with reduced engine power. Engine power reduced 1 Answer. 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