Last post on Dec 10, 2013 at 4:27 PM
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Chevrolet Impala, Auto Repair, Electrical, Fuel System, Sedan
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#81 of 487 Re: chevy impala "REDUCED ENGINE POWER" message [idahofarmboy]
Mar 11, 2012 (5:08 pm)
I am having the same problem. It started out shifting hard, occasionally. Then it began shifting hard a lot. Little by little it has gotten worse. The engine power is reduced a lot, service traction control and service brake assist messages pop up. Sometimes it stalls, and wont start. I get a "starting disabled, service throttle" message. I wait five minutes and then it starts. The car runs like crap! I dont want to take it to a dealer because they are too pricey for me. Mine is a 2007 Impala LTZ. I agree, I doubt we are the only ones with this problem.
#82 of 487 Re: chevy impala "REDUCED ENGINE POWER" message [gmcustsvcsarah]
Mar 15, 2012 (7:45 am)
What part of the warranty are they covered under?
I have an Impala 2009 and I'm getting this issue as of today. Reduced engine power and "service traction control" messages.
If this is not covered under warranty I certainly won't be taking it to a dealership for fixing.
This is obviously a very common issue. Why has there not been a recall? Why is GM not doing anything to address the problem?
#83 of 487 Check stabilitrak light, reduced engine power
Mar 26, 2012 (1:52 pm)
I have a 2011 Impala LT with 48000 miles. The check stabiltrak light came on and reduced engine power light. This is the first time it has done this and from what I read on your forum this is an ongoing problem with GM vehicles. After years of driving Fords, this is my first GM car since 1974 and I'm really disappointed. All of my Fords had over 100,000 miles on them before I had issues. Now I'm told I need to take to the dealer to have it checked and I'm retired and living on a pension. This seems like an engineering problem to me. GM needs to recall these vehicles. I only hope it's something covered under the 100,000 mile warranty.
#84 of 487 Re: Check stabilitrak light, reduced engine power [msad]
Mar 26, 2012 (2:44 pm)
Mine was covered. They pushed it through but I had around just over 38,000 miles on mine. I also just two weeks prior to the reduced engine power and stabiletrak come on my whole transmission pump went out. So they may have been being nice. I had to get the throttle body in the foot pedal replaced. I am disappointed to and this is our first GM purchase after years of fords too. We had a lemon of a GM in 1998 and we thought we would give it a try again I wish I would have bought the Ford Fusion for the extra 2500.
Good luck I hope it work out.
#85 of 487 Re: chevy impala "REDUCED ENGINE POWER" message [mbryanton]
Mar 27, 2012 (7:47 am)
I see your Impala is a 2009, and may still have bumper to bumper coverage on it; we can check to see what warranties remain on your vehicle if you wanted to email us the last 8 of your VIN to socialmediagm.com. Have you taken any steps to get this addressed since you posted? I apologize for my late response - sometimes the tool we use to find posts doesn't catch everything.
GM Customer Service
#86 of 487 Re: Check stabilitrak light, reduced engine power [msad]
Mar 27, 2012 (7:54 am)
When are you planning on going in to the dealer? Please keep us posted on your progress, and if you would like for us to get involved further, please send an email to socialmediagm.com with more information (include your name/Edmunds username, phone and address, the last 8 digits of your VIN and current mileage, and name of your dealership).
All the best,
GM Customer Service
#87 of 487 reduced engine power
Mar 27, 2012 (5:02 pm)
i own a 2008 chevy impala lt 3.9 lt flex fuel it barely has 84000 mile on it. The darn thing is really teeing me off ive replaced 4 sets of tires on this heap and hub bearings struts and almost every other suspension part you can name, to no avail. I am so mad i could spit i wish chevy would recall like they did for the police and govt. cars but no joe public is not as important as the govt. so once again we get screwed and big business wins out.
#88 of 487 2009 chevy impla
Mar 29, 2012 (5:27 pm)
Iam having the same problem with my car. My problems started two months ago. Reduce engine power. 1st problem with this car,I was driving on I45 going to Houston,Texas. Darn car stopped on the highway. Thank God,after I completely turn the motor off,let it sit for 15 min.started the car. completed my trip. Now the car has that message every other day"reduce engine power" I am about to trade this car in for an Altima. Hopeful GM will do a recall before someone is killed.
#89 of 487 Engine Power Reduced/service traction control
Apr 01, 2012 (10:56 am)
I have had the car for a while now...right at 80000 miles and this light pops on five minutes after I pull off. I do not know much of anything about cars, so I turned right around and came back home. what does this mean?
#90 of 487 Traction Control Malfunction/Reduced Engine Power/Check Engine Light On
Apr 07, 2012 (11:50 am)
I have a 2008 Chevy Impala LT. I have had this car since October 2011. There was approx. 68,000 miles on it when I got it. Ever since I have had the car the dash has flashed 'Traction Control Malfunction' followed by 'Reduced Engine Power' then the check engine light would come on. I would pull over, turn the car off, and let it sit for at least a minute. When I would turn the car back on it would be back to normal. At first, this would only happen every few weeks when going uphill or right after it would rain so I really didn't think it was a major issue. About a month ago I gave someone a jump and noticed afterwards that my check engine light was on. I took my car to AutoZone and had them read the codes. The codes it was giving were: P0172 running rich bank one, an O2 sensor (that's no big deal and easy to replace), P2138 Throttle Position Sensor, and it said that the Powertrain Control Module indicated a Traction Control Malfunction (which was already known). I reviewed my warranty manual and found that all of these problems should be covered under my powertrain warranty. I took it to the dealership so they could look into it further by running a diagnostics test and hopefully fix the problems free of charge. I got a call back the next day from the service department and was informed that the problem was my GAS PEDAL. I asked about the other codes that I had found and also asked why my check engine light was on and they told me that they really didn't know. Hmmm. I was told that the gas pedal was not covered under the warranty, but really needed to be replaced for safety issues. I declined to let them fix it because the price was a little too steep for me. My questions are: Could a bad gas pedal trick my car into thinking that all of those other things are wrong? Why could the dealership not tell me why my check engine light was on? Shouldn't a bad gas pedal be important enough to list as a recall item? Where do I go from here?