Recommended Services. 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. Engine power reduced 1 Answer. 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. When specific faults are detected electronically, the engine control module begins the process of limiting vehicle speed, gear range, and engine power. Keep in mind when I mention Chevy I'm also including the GMC trucks in this article as well. My 2016 1.5T LT threw up the check engine light along with reduced engine power. 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. From every button and switch on the dash down to the ‘fly-by-wire’ throttle control system. 11 Silverado 1500, been throwing a code where it cuts off power, and traction control and stabilitrak are shut off. At all. Sometimes, it can be a dangerous situation. And boy did it reduce. I travel 40+ miles each way to work in Atlanta traffic with speeds around 65-80 (big trucks). It comes on in instances when the battery or lines between electrical systems in the engine … Nothing better than going down the highway and the the car has no grunt anymore. 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 … Driving along and suddenly noticing that you have reduced engine power isn’t a feeling anybody likes. 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 check engine light came on and then 'Engine Power is Reduced' 'Service Traction Control' 'Service Stabilitrak' popped up. Traction Control Light is on Inspection: $79.99 - $89.99: I took the car to my wife's uncles shop as he only charges us for parts and I don't have anywhere to work on it myself. Unfortunately, the reduced engine power issue on Chevrolet trucks has more than one possible root cause. Apr 13 2019, 2:29am. I can shut off engine and let sit for 30 seconds and re fire and keep going with 0 issue. Back in the day, before these electronically controlled throttles, everything was cable actuated. 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. The reduced power displays on the console, the car slows to a crawl and the Check Engine light comes on. 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