Http://townhall.edmunds.com/direct/view/.f0e807e/115 http://www.gminsidenews.com/forums/f31/2003-yukon-xl-reduced-power-issue-help-90910/ http://www.justanswer.com/gm/5bfxf-gmc-2003-gmc-yukon-5-3-motor-code-p1518.html http://www.chevyavalanchefanclub.com/cafcna/index.php?topic=43119.0;wap2 please check out these links as i have been searching for a fix for my "reduced engine power" issue with my yukon. i've come across several others with the same issue. most of which have taken the issue back to gm dealers, who get no support for the problem from the home office. i believe this could be a very dangerous issue. the issue itself is the truck kicks into "reduced engine power" mode and then it does not go any faster than idle which means it all of the sudden reduces the speed to 5 mph maximum as well as the power steering goes out and the abs brakes. that is very dangerous if you are on the highway. people have been troubleshooting the issue with no solid fixes from what i can find. i believe gm should come up with a fix so that isn't a dangerous hazard to consumers and owners of what looks like there 2003 model years, it seems to be mostly there 2003 model years. gm doesn't seem to want to recognize this as an issue. please help us consumers out, we would just like this problem solved. thank you very much. *tr
This is the second time for this problem to occur with this vehicle. i filed a complaint ( 10398842 ) with your department on 05/03/2011. since that date, we drove the vehicle to dallas, tx for a convention with no vehicle problems. then on june 5th, we were returning from houston when the vehicle without any warning gave a message that the engine was going to reduced power while we were driving in traffic. we had to work our way to a safe area to park because we were a hazard to other drivers. this afternoon i called general motors to get some response to this problem. i was told again that the engine was protecting itself from damage. again, i asked if it was more important to protect the engine than the occupants, the representative was rather testy about the issue. there was no response when i said that no automobile in america should shut down in traffic for a non emergency. especially since the driver looses control of the operation of the vehicle. i have a picture of the instrument cluster during the reduced power interval which shows that all gauges were normal so there was no reason to expect any issues with the vehicle. the engine was at 500 rpm and would not gain speed. this is causing us to fear driving this vehicle. in any case, i cannot see any reason for any vehicle on the american roads to be under the control of itself while in traffic. the passengers should be the primary concern. i hope you can get to the bottom of this before an accident occurs with this vehicle. if there isn't a current recall on this vehicle for this problem, should there be? this is a low mileage well maintained vehicle. *tr