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Problems with 2011 Chevrolet Impala UNKNOWN OR OTHER

On average, the 2011 Chevrolet Impala starts to “feel” problems with the UNKNOWN OR OTHER and its various aspects after 78 517 miles.

Recently reported UNKNOWN OR OTHER problems on 2011 Chevrolet Impala

I was driving my car and suddenly it flashed across the screen service stabilitrak, then service traction control system, then reduced engine speed. this caused my vehicle to slow way down out of no where from 70 to less than 30, and made steering near impossible. i have my two children i drove around and i'm afraid to even drive because if there's an accident with them in the car because my cars slowing unexpectedly someone will be paying for this. this is a huge safety issue and i see all over it is and it needs to be fixed!

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

Door system on the car has failed multiple times where i have to take the door apart and fix it. it's not all 3 doors it's just one door. i understand you may not think this is a safety thing. but i'm a firefighter and let me tell you that if i had someone in the back seat and i get in a crash. how are they suppose to get out? since i have a car seat on the other side. especially if the car catches fire. i guess someone dying will have to changed that.

I have been having problems off an on with several issues i don't know if it's sensor , wiring, wheel, or other related but i have been having issues with service stabil trak, service airbags, traction control, braking related, etc. most recent has been with service stabil trak . i took to dealership and they said computer showed throttle body needed replaced and i've done that then a couple weeks later same lights coming on only this time dealership says it's the right wheel speed sensor harness but i didn't have that repaired because i am seeing in forums online others having same issues and it's an ongoing problem no matter what part of the system you fix so i've been turning off traction control so i don't get warning lights . vehicle always in motion with these problems and after all the issues i've had and still have i know now that an accident that happened about a year ago is definitely related to all this . i was approaching a busy intersection and saw light was yellow so i started slowing down and came to a complete stop i remember having my foot on brake pedal and next thing i knew my car had slammed into the rear of the car in front of me it happened so fast i was stunned and couldn't comprehend what had just happened and the person i hit was a pregnant female who was very upset. i told her i had no idea how the incident could've happened with my foot on brake we were both on our way to work and since there was no real physical damage to our vehicles we just exchanged info and headed to work. i know now it was related to this somehow and wished i would've reported it. the car had accelerated on its own!! i bought this car from the dealership with 41,000 miles (highway miles ) i was told it now has 92,000 miles on it and i have done all the oil changes and required maintenance but have spent several thousand hours at dealership with every issue imaginable.

I left work to go pick up my daughter at the airport (about an hour away) but heard dinging and saw that i was getting the message to service stabilitrak/traction control and that engine power is reduced. luckily i was not on a highway at the time, but i would have been if it had happened while i was picking up my daughter. i drove straight home instead and my husband had to leave work to pick up our daughter. i am taking the car to the dealer next week for service. it appears that this is a very common issue with this model and needs to be addressed by gm.

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.

P0128 code. engine hot a/c off light on dash heat guage drops all the way down and ac does not work. i have replaced thermostat twice and ect sensor once please advise. thermostat relacement gave me aprox 200 miles each time, ect sensor replacement aprox 50 miles. all driving on city streets in town. please advise!!

While accelerating, at approximately 45 mph, the acceleration pedal became stuck and the car would not stop. brakes were applies and engine fought the brakes until i could get the car stopped. engine continued to rev high and i called 911. police dispatcher advised to turn off car in drive. police arrived and saw that there was no floor mats over the pedals. a few moments later, police and i heard a snap under the dash. at that time we had no idea what the sound was. i subsequent started the car and it idled perfectly. i later figured that the snap sound was the accelerator pedal returning to the outward position. very scary experience that almost caused several accidents, during the ordeal.

Problem with the actuator--makes loud clicking noise. don't know which actuator is causing the problem. problem occurs when it is stationary and in motion. lasts from a minute to 3 minutes.

After starting the my chevy impala the engine started shaking rapidly. it showed service stabiltrak, low engine power & the check engine light came on. i shut the car off & started it again. it did the same thing. i cut it off but it did the same thing. i cut it off 1 more time because i did not feel safe driving it & waited a minute before trying to start it again. surprisingly the engine was running rough. i took it to an auto store where the codes showed throttle issues. i took it to a mechanic. he did some additional tests & informed me that i had a bad throttle body. i had to have this replaced which i was informed that gm has had issues with throttle body & components. very disappointed that this would happen. im concerned that this might happen again or happen during driving.

If idle or running the vehicle makes an extremely loud ticking nose. it turns out that it's the blend door acuator.

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

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.

Relay switch on driver side for air conditioner clicks for several minutes and blows hot air. the passenger side currently blows cold but now the clicking has been happening there also. i had a total stranger hear the noise while i was pumping gas who said his impala did the same thing. this is obviously a common defect in chevrolet impalas that should be taken care of. this happens everywhere all the time moving and parked

Bought car 4 days ago. now the warning light and message keeps coming on about service brake system assist and traction control system needs service. the car bogs. it does this while driving and when at start. the tcs iimblim stays on at all times. shouldn't this be a recall or under warrenty?????

Takata recall - service air bags warning just recently came up on my dashboard when driving. passenger side seat belt sounds off, and flashes to fasten seat belt when there is no passenger is in the car, and the air bag panel flicks on and off consistently. when i open the drivers door, there a tapping like sound starts and continues for five to six seconds and then stops. when i push the heat and air levers, it stops. when i turn on the air or heat, it will make the tapping noise and stop after a short while. the noise seem to be getting louder. when the car is sitting in the heat or when in the car just sitting and the car not turned on, the same tapping noise will occur. the noise sounds like a wood pecker sound. it sound like it is located in the cooling system area, close by the dashboard area.

Service traction control and check engine lights came on this morning. then a message saying my engine power is reducing. i just bought this car 3 weeks ago. i called gm customer service and they told me there was nothing they could do, even though there was a recall regarding this because it was over the 120000 mile warranty (but i just bought this car 3 weeks ago!!!)

on the morning of tuesday, june 2nd, 2015 just after 10am i was leaving my apartment managers office and when i was going in reverse and then to drive and touched the accelerator the impala began to shake and on the dashboard it said the engine power reduced to half and there was a problem with the stabilitrak. when i parked in front of my apartment building, i turned the car off then back on and it was still shaking/ idling rough and on the dashboard is continued to read, "engine power reduced by half" and mentioned stabilitrak. the engine light was also on during this time. i left the car and returned 10 minutes later and engine light was still on and while it no longer idled roughly, it still had stibilitrak on the dashboard.

Driving along and car just accelerated and could not get it to stop or slow down. traction control light came on, engine reduce power, low engine power, service stability trak, check engine light. i was pushing down on the brake trying to get the car to stop or at least slow down but the car seems as if it was getting fasting then it made a jerk and i bumped my head against the window, and my foot got stuck under the pedal and knee got jammed . my mom got hurt also and being jerked back and forth.

Car was going about 40mph. reduced engine power warning, loss of traction control, and stabiltrak to be serviced. gm will not cover under warranty and is a common problem. some cars will automatically just shut down.

I made an appointment with the chevy dealer after receiving the recall notice. when we took the car in as instructed, we were told they did not have time. but they did have time to try to sell us some services from them. what is the companies responsibility to fix our car? *tr

When the traction control system activated the engine idle decreased and the system could not locate the new throttle position. this caused the eng power reduction and fault warnings on eng tcs and scs to light in order to drive i had faults cleared and turned off systems. gm says the codes have to be read to fix.unsafe.

July 2015, "service stabitrac, losing power" lights came on. took to local dealer and spent $600 for repairs. september 2015, same problems, took for repairs - no charge. less than 2 days later the error code is back. dealer has no clue on problem remedy. when the lights come on, acceleration is affected.

I think there should be a recall on the stabilizer bar. our engine powers down if the wire behind the gas pedal gets loose. this has happen to my husband car more than once driving down the road.

I was driving down the highway on the homestretch of a roadtrip from pa to fl when the "service stabilitrak" , followed by "engine power reduced" message started flashing. the two lights on the dashboard also went off. since i was in the middle of the highway, i was unable to find a good place to address the issue, and i figured like most times the "check engine" light goes on, that it was something that i could wait to deal with when i got home. i continued driving for about 15 minutes and then the message changed and said "disabling throttle" or something to that effect, and i felt the engine losing power. i was in the middle lane, doing around 55 miles per hour with cars all around me. i immediately put on my four-way flashers and fortunately people in the right lane slowed down and let me coast to the shoulder but it could have been disastrous. i sat there for a few minutes trying to figure out what to do. finally after a few minutes i decided to try starting the car again and it started, with just the check engine light on and i was able to continue on my way. since then it has continued to occur intermittently. i took it to the dealer, but they told me it was a sensor in the gas pedal but that it was not under warranty. *tr

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