Why is my truck saying reduced power

Hello, a warning of reduce power is because the engines processor has determined there's a problem that must be resolved, and this problem can affect safety and longevity of engine components. This could be throttle related, engine temperature related, or even air in fuel mixture related. Diagnostic testing is required, seek local guidance at a shop near you as soon as possible. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops