2003 GMC Sierra 1500 Q&A

2003 GMC Sierra 1500 Question: what i can do. my truck turns a light on REDUCE POWER ENGINE

I have turn off the motor and restarting the engine -
Answer 1
your sensors telling you there is a prob. get diagnostic run to find out what it is. might be easy fix now or big fix later. best to find out. -
Answer 2
have codes scanned and post so we can adv -