Reduced Engine Power Light On

6.0

fairly significant
Typical Repair Cost:
No data
Average Mileage:
63,900 miles
Total Complaints:
5 complaints

Most Common Solutions:

  1. not sure (4 reports)
  2. replace wire harness and accelerator (1 reports)
2009 Buick LaCrosse engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2009 Buick LaCrosse:

Unsubscribe any time. We don't sell/share your email.

2009 Buick LaCrosse Owner Comments

problem #5

Apr 222016

LaCrosse 3.2L V6

  • Automatic transmission
  • 94,329 miles

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

Send Comment Add Complaint
problem #4

Jan 022016

LaCrosse CXL 3.6L

  • Automatic transmission
  • 84,235 miles

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.

- Robert H., Jeffersonville, IN, US

Send Comment Add Complaint
problem #3

Jul 152015

LaCrosse CX V6

  • Automatic transmission
  • 74,800 miles

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!

- wpgranny, Waite Park, MN, US

Send Comment Add Complaint
problem #2

Oct 012014

LaCrosse V6

  • Automatic transmission
  • 21,000 miles

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.

- geosinner101, Towaco, NJ, US

Send Comment Add Complaint
problem #1

Feb 192011

LaCrosse 3.8L V6

  • Automatic transmission
  • 45,000 miles

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.

- Heidi N., Minooka, IL, US

Send Comment Add Complaint

Not what you are looking for?