general problems of the 2011 Chevrolet Impala - part 1

Service stabilitrak warning, followed by reduced engine power, then car starts jerking.

I own a 2011 chevy Impala 4 door that has a very serious engine issue. I was on my way home and suddenly the service stability trac, and check engine light came on, then the message center displayed reduced engine power and low oil pressure then the engine shut off. I tried to restart the vehicle and it would not restart. I got it towed to a parking lot where it sat over night then it would restart but only for a few minutes. Once I got a scanner hooked up it had a p0642 code lost 5 volt reference circuit 1 and a cam sensor code I worked on this vehicle for two days and still have not found the issue. This vehicle needs a recall since this is a recurring issue with a few different model years of this vehicle and its always the same issue word for word, check engine light comes on, service stability trac, reduced engine power and low oil pressure lights come on the same p0642 lost 5 volt reference circuit 1. This is a very dangerous situation when going down the road and you lose engine power, steering and braking power. Gm needs to correct this issue too many people have had this same issue.

This problem has happened for many many years. Made appointments @ fuccillo chevy dealer, by then it’s gone off & they don’t know! well, just occurred again when getting new tires @dunn pulling in. 2011 Impala stabilitrak, engine power loss, then check engine light! thank goodness the mechanic printed me the codes & what they mean!! so- p2138 throttle/pedal pod sensor voltage correlation dtc p0523 engine oil pressure sensor/switch high input same complaint of loss of power as I’ve now seen others write about!! voltage referring to throttle ‘s ability to open/close properly. An electrical malfunction in manufacturing! recall!!! obviously I actually have another Impala- 2007 that the rear defrost wire’s actually burnt @ control junction, been replaced now. Could’ve caused a fire !! high beam lights come on intermittently when using the turn signals!! stand by your product !!!! I have 2 Impala’s, 2007, 2011. My mother has Impala, 2015. My sister has an Impala, 2017. Impala family I guess- kinda funny, all are black Impalas!!! I’ve seen numerous complaints of this same issue! defect! r u waiting 4 an accident or a death? go !!!! has happened numerous times b4 this report, chevy dealer has previously stated can’t anything because the code disappears on its own. What’s with that? resets itself?? it does!! sure have had it happen, 20 x’s?? I make an appointment & by that time- gone! seriously!!! finally caught it 2 code it !!.

Service stabilitrak warning light goes off and on intermittently when this happens the traction control light comes on when hooked up it shows no codes everything I’ve read on line is that it’s a electrical issue to replace wheel bearings or gas pedal or other list of sensors shouldn’t this be something that you should investigate to let owners know what to fix it seems to be a issue on several different models of chevy autos if forums are correct next step is it will go into limp mode or shut off completely that one would think would be a serious safety issue as you loose power steering as you have to fight to get to shoulder of the highway.

Today, 6-12-2022, driving on us highway 80 at 65 mph headed toward phenix city, al from columbus, GA, the the engine shuddered, then the "stabilitrack service light" came on, along with the check engine light, and a message for "reduced engine power. " then, the engine suddenly cut out as I was going uphill between the riverchase exit and the summerville exit. Luckily, I was driving and not my wife. I was able to glide the car back to the right shoulder of the road under zero power, and shut the ignition down. Cars were passing me at 65-75 mph, and I was very fortunate not to have caused an accident. After sitting there for about 5 minutes in 96 degree heat and my wife freaking out in the passenger seat, I restarted the car and eased it to the summerville exit, and slowly drove home, about another 6 miles. We were damn lucky not to have been hit by another car, as this happened on a what is essentially a freeway. After researching this , it seems this is a common problem being reported on this model, the chevy Impala. I'm sure Chevrolet knows about this. . . The company should be forced to recall this car model and fix it before folks start getting killed due to total engine failure. . . Especially at a high speed like I was driving.

The car was purchased 06/23/2021. Approx 2 weeks or less later the car had to be taken to the shop where it was purchased at due to the engine going in the car. There have been 3 loaner cars given while car is being fixed however after now 4 months the car is still just sitting at the shop where it was purchased at without the engine being replaced or repaired. There is a loan on this vehicle and it is very unfair that the loan has to continue to be paid for when the car is not in possession of the owner. I do not want the car back at this point because it is now out of warranty and has been sitting for a long time without being fixed. I have called many times and have been getting the run around. Now the owner of the shop or workers will not answer my phone calls. My name is [xxx] my contact information is [xxx]. I am helping my son out because he is and have been getting the runaround since he purchased this vehicle from ecars. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2011 Chevrolet Impala. The contact stated while driving approximately 55 mph, the vehicle stalled without warning. The contact mentioned that the key was unable to be removed from the ignition. The vehicle was unable to restart. The vehicle was towed to an empty parking lot. The dealer was not contacted. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 145,000.

- service stabilitrak. A reduced power light usually indicates a fairly serious problem with the throttle system. When this light illuminates the vehicle will often go into a �safe mode�, which will severely limit the speed of the car and in some cases will render the vehicle un-drivable.

Worst car gm is horrible.

I was driving on the highway and received the following message, service stabilitrak - reduced engine power. This has come up a few times. This time though while still driving my engine power was greatly reduced with the error, "starter disabled, service throttle". This led to a drastic decrease in speed with zero control over throttle and moved to the shoulder and the car rolled to a halt.

Get an error out of nowhere stating service stabilitrack, loss of engine power.

While in motion my 2011 chevy Impala up a highway my vehicle dash will come up and say stabilitrak disabled traction control disabled then engine power reduced then the vehicle will begin to not steer correctly then I will have to pull over and restart the vehicle it then repeats itself after a short period of time.

Tl the contact owns a 2011 Chevrolet Impala. While making a turn, the vehicle completely lost power. Also, the stabilizer track and engine service indicators illuminated. The vehicle coasted as it regained some power, but the contact pulled over to the side of the road. The vehicle was able to slowly be driven to its destination. The dealer and the manufacturer were not contacted. The vehicle was not diagnosed or repaired. The failure mileage was 124,000.

I keep getting errors of check stabilitrak engine power reduced I have changed the throttle body.

You really want to know what I think? ok. . . Here's what I think. I think that is beyond comprehension and personally I think it's illegal that gm can get away with not having to put out a recall for the "engine power is reduced" issue that just about every make and model of gm vehicles have. It's not only time consuming to try and figure out what the fix would be because it's not always the same thing wrong on each vehicle (and when you do have it fixed it doesn't last very long until the "engine power is reduced" warning comes back), it's also very expensive but the biggest problem is that it's extremely dangerous. The power is reduced and actually turns the car engine off no matter if you're driving or not. It shut my 2011 Chevrolet Impala engine off as I was driving down the interstate. Thank god there was very little traffic or it could have been catastrophic. I didn't realize how big of a problem this was until I started researching the problem. It's absolutely criminal that you pay your hard earned money for a vehicle and it not only isn't what you thought you were paying for but it can actually take your life and ruin your family because gm's bottom line is more important than their customers lives. I've filled a complaint on this problem already and if something isn't done and it's the cause of grief for my family I will make it my mission to make sure gm not only fixes their crappy workmanship but that they also dig into their bottom line and compensate their customers for the heartache and grief they have caused. It's a pretty simple fix for them and that would be to acknowledge the problem and just fix it, but I just don't think they care enough to do that. I've always been a chevy guy, but after this Impala I will never own or drive another gm product for as long as I am around. That's what I think. Signed, chevy guy forced to not be a chevy guy.

I was driving on the interstate and a message came up saying "engine power is reduced". It was during rush hour and I almost got rear ended because my vehicle slowed down to about 15 miles per hour.

I was driving on I-695 (in baltimore) with my 3 daughters I received "service stabilitrak, traction control, engine power reduced" message while driving around 65 mph. The engine and tracking light came on and the messages would not go away. I was frighten and hopeful that we would not only make it to our destination but then back home again. Fortunately we did but the very next day I have researched this issue. It seems to be a ongoing issues and maybe cost me hundreds of dollars to repair. That makes me nervous because I am a single mother with only one source of income.

Takata the problem that is wrong with my car is the engine power reduce is always come on and when I'm on the interstate or highway my speed reduce and my car can shut off at any time while driving and it can cause a bad wreck. The problem been happen for a minute now.

Why is there not a recall on stability traction control? I see thousands of complaints on the internet for gm vehicles. It seems to me that gm just doesn't care enough after the sale. I just bought 2011 Impala and now the stabalitrack service light keeps coming on while going down the road. It will do this for no apparent reason but happens mostly when accelerating. Using the cruise control on level road and dash warning light comes on and throws car out of cruise, decelerating while gages flip around all over the place. Power loss and lack of acceleration are definitely safety issues. Pulling out of my driveway onto michigan highway and I get halfway across highway and car stops. This highway is 55 mpg and while I would have had plenty of time to cross the lane, car looses all power. Looking on the internet gives no help for a fix. I turned the stability traction control off, but the problem does not go away. I see on the internet that many people have taken there vehicle to the dealer garage only to get charged exorbitant prices for "possible" that do not seem to help. Gm should get this figured out and not let every dealer garage do their own guessing on what will fix this very dangerous problem that is not limited to single model or year but spans many years with many models. My first vehicle was a gm but this may be my last gm. I would like to give a date below but this has been happening since I bought the vehicle about a month ago and getting steadily worse. I have had it checked out but nobody can give me any useful answers.

Reduced engine power, service stabilitrak and traction control. Spent $300 to get the gas pedal sensor replaced 4 days ago and its doing it again. Car loses power (I was I-65 going about 60 mph). Shifts hard, too.

The check engine and stabilitrak light has come on and off several times and also causing my vehicle to slow down. I am now at the point of desperation as this morning, while I was on my way to work, the lights came on again, only this time the car turned itself off but proceeded to roll even with me attempting to put on brakes. I have read in several forums that this has happened to others, including someone crashing into a light pole. Please advise what can be done, as I now fear for my life with this car.

Bought 2011 Impala lt 2 weeks ago, first time driving to work on freeway - engine light comes on and message comes up - engine power loss, stabilitak traction control. Car completely shut down!! almost got hit by semi . No one has any answers!?.

Traction control light, stabilitrac light, and engine light all came on while driving down highway. This caused the car to start jerking and shifting hard, also engine running like it has a misfire now. Before this began the car was running and shifting perfect.

The contact owns a 2011 Chevrolet Impala. While driving 45 mph, the traction control, service stability, check engine, and engine power indicators illuminated. The vehicle jerked and the contact decelerated the vehicle to 10 mph; however, the speedometer indicated 40 mph. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but there was no answer. The approximate failure mileage was 94,000. The VIN was not available.

My service stabilitrack, reduce engine power light came on while I was exiting the freeway. When this happened I had almost no brake pedal. I couldn't stop at the light at the end of the exit, luckily no other cars were around. If I had been on a main street at 45mpr and had to stop for a red light I would have never stopped on time. I'm very lucky no cars were at the light waiting or coming in a different direction with the green light. I see this problem all over edmunds and on you tube and as far as I can tell it's 100% Chevrolet. How can this not be a recall. There are dozens and dozens of the same complaint on edmunds and you tube. It seems like every you tube video has a different fix for the problem. . . . From pulling out the fuse to the stabilitrack to over a thousand dollars in repairs. Does there have to be a death to get the attention of Chevrolet. The light had come on a few times before but this was the first time it happened while I was driving. Usually it came on and I would turn the car off for a few minutes and it would be fine. . . . . . So how could this be anything but a malfunction if it goes off and on at any whim. They must know about this problem as it seems to be very prevalent and again from what I have read it's always a Chevrolet.

Check engine - then power reduction - down to about 20 miles per hour - jerking all over the place - then stableteck light comes on. . . Extremely dangerous. Local dealership says this happens frequently - and they don't really know whats going on. . . Gm fix it please. . . I don't have 80,000 and now a busted vehicle - won't buy another gm product ever. . . Oh yeah - retired from gm family.

Transmission failure, vehicle cut off in the middle of the street during rush hour. People could not push the vehicle out of street. Transmission /engine locked.

When starting from a stop the car jerks as if the transmission is trying to catch up and it feels like you've been hit from behind. It's an on and off problem but it happens in the rain and is dangerous the dealer changed the trans oil and it still does it. Next the car goes into "reduced engine power" and "service stabilitrak" while driving and will not let me finish my highway drive safely, no one at the dealer can help with this except to say it will cast a lot of money to fix. Headlights constantly burn out and I bought expensive lights last time and one is already burnt out. I have only 1 payment left and the car is ready for the junkyard, you would think after $28000. 00 it would last a little longer. What happened to gm??.

While driving the car I came up to a red light it started shaking then a message came up that said service stabilitrack after it turn off and wouldn't turn back on I had to push it out of the main st to avoid getting hit or causing an accident I ended up getting it towed to my house called a mechanic to look at it and he says it might be my motor so I called the chevy dealer in lakewood and they told me my warranty was up last year so they say they could not do nothing for me I have to fix it out of my pocket this car had already too much problems from the start my transmission broke also under 60000 miles luckily is was covered by warranty but now I got no car no money and I'm still paying for the car I got about 2 yrs left to finish it and it didn't even get to 100000 miles I got played on buying this car all my hard work money is being taken for them selling me a problematic car I spoke to general motors and all they said they have to talk to a senior advisor it's become dangerous to even drive this car because when something happens to it it stops were ever now I have a family kids I don't feel safe driving this car no more I need to know what could be done to fix this problem if not I have to proceed with legal matters and also get a class action lawsuit started cause theirs many people with similar problems and the same car.

My car all of a sudden beeped and 3 warnings came up saying "engine power reduced" ,"service traction control" and "service stabilitrak" 2 images came on as well the engine light and the traction one. The car seemed to be running fine I was almost home. But it scared me since all those lights were flashing. Especially the engine power reducing. Reading all these stories I feel lucky that my car did not stop on me. I remembered id received a letter that was not a recall but mentioned to take in if you had any issues with this and should be covered or refunded if fixed in the past. I found it called gm and have an appt in 2 weeks which worries me hope nothing happens between then. The bad and good thing is that now all the lights have come off. Hoping they are still able to fix it and I am not having to pay anything for it. I feel like this is very dangerous and should be a recall.

Today our 2011 Impala displayed msgs for "service traction control, service stabilitrack, engine power reduced". We started to pull over as it dramatically slowed. The engine then died. We were on a 6 lane highway going 45. This could have been deadly. We received a recall letter for the throttle position sensor. The dealer did not repair it because they could not reproduce the error.

The contact owns a 2011 Chevrolet Impala. While driving various speeds, the engine warning indicator illuminated and a beeping sound was heard. The engine power reduce warning message also displayed. The vehicle would decelerate, but once the vehicle was powered off and restarted, the issue would be corrected. The contact stated that the failure occurred at any time. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The VIN was unknown. The failure mileage was 112,000.

Vehicle slowed on highway, reduced engine power warning message and stabilitrak meassage displayed also engine indicator light is on.

Started seeing error message this morning on start up of the car: engine power reduced service traction control service stabiltrak experienced reduced engine power, traction light on, engine light on.

G. M. Replaced my ingintion switch on a national recall. I was hit in left rear qtr. Panel. I lost all power and could not stop or steer the car. I careened across highway and ran into a house. No air bags deployed either. G. M. Sent a team to recover computer info and has now told me there is no problem.