2009 Lacrosse Reduced Engine Power - My 09 Lacrosse has been having intermittent issues over the last year or so. I already changed the Throttle Body Sensor. Improved my fuel mileage but problem came back within 60 days. Additional research shows GM is aware of this and you can follow link I provided from Vitaly's website. It lists the problem and should be repaired at dealership at no charge if under 10 years and 120k miles. Will be taking mine in tomorrow morning.
Driving home yesterday the reduced engine power light came on, then the T/C light, the engine symbol and the T/C were both illuminated. Taking it to a dealer today.
While driving on the interstate, i went to pass a large truck at 65 mph, after pressing on the accelerator, when my rpm reached 3000, the power dropped from the engine and the warning "reduced engine power" came on. I had to slow to 60 mph and get back behind the large truck. My rpm would not go above 3000 during the rest of my trip. The next morning, on the way to work, car drove normal, acceleration and all.
I don't understand why this isn't a recall. Obviously, from other posts I'm not the only one with this problem and, in fact, the 2009 LaCrosse is noted for the problem. Problem is in the accelerator, causing warning lights for ABS and traction control, as well as reduced engine power. Our very nice neighbor, who is an ace mechanic for a dealer's reconditioning service offered to repair. He wasn't going to charge me anything, but I gave him what I thought MIGHT be fair. Then I Googled the problem and then I was upset, to say the least. Not because I was out $40, but because GM has decided not to warn about this problem. He said he replaced an electric wire harness and the accelerator. Next vehicle won't be GM!
Engine light on. Reduced Engine Power message. Followed by Traction Control Off message followed by Service Traction Control message. Definite change in engine performance. When engine is shut down, Traction control message disappears. Engine performance returns to normal. Dealer scanned trouble codes and worked on problem. Trouble returned and is pending as of this date.
My reduced engine power light came on and I noticed the reduced engine power right away; vehicle became sluggish when accelerating. Also my traction control light came on and flashed alternately with the reduced engine power light.
A D V E R T I S E M E N T S
Driving home yesterday the reduced engine power light came on, then the T/C light, the engine symbol and the T/C were both illuminated. Taking it to a dealer today.
- flood, Tiny, ON, Canada