Chevrolet Silverado 1500 Reduce Engine Power light repeatedly activates on Chevrolet Silverado 1500

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Chevrolet Silverado 1500 owners report experiencing repeated activations of the "Reduced Engine Power" light, indicating potential issues affecting engine performance. Common causes include a faulty throttle body, which may require replacement or repair to resolve the problem. Additionally, malfunctioning sensors, such as the throttle position sensor, can lead to reduced engine power, necessitating proper functioning or replacement of these components. Electrical problems, including damaged wires or a faulty PCM system, are also cited as contributors to this warning light, and addressing these issues is crucial for restoring optimal performance. Fuel system concerns, such as inspecting components and decoding trouble codes, are essential steps in troubleshooting this issue. Furthermore, some owners note that factors like a failing torque converter or radiator problems may also trigger the warning light. It is recommended that affected owners have their vehicles inspected by a qualified mechanic to diagnose and address the specific causes of the "Reduced Engine Power" light activation.

1 person reported this problem
0 comments
Schedule Repair

Chevrolet Silverado 1500 vehicles with this problem

0 model year affected

Search for another problem

RepairPal Car Genius

Ask our experts about your Chevrolet.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts