2009 Chevrolet Impala: sudden loss of power

Filed Apr 6, 2021 · Transmission · 40,000 miles · IL

Power reduced to engine and traction control light come on and loss of power

Filed Mar 4, 2021 · Electrical, Engine · 100,000 miles · MI

Car continuously gets a reduced power message and goes down to 25 MPH. In mid january did the same thing, but stalled on i90 ohio turnpike. Almost hit by a semi truck. Have had the car in the shop no less than 5 times for the same problem. At gm and non gm repair shops. We have had this same reduced power on city roads, and the highway, it seems always when it is wet, rainy or slushy. It really appears to be a water causes the problem. We have paid for two sets of throttle body, speed control sensor and harnesses. The problem continues to persist and appears to be dangerous.

Filed Sep 7, 2020 · Brakes, Engine · 180,000 miles · GA · crash · fire · 1 injury

I crashed heading down a hill .I crashed into a telephone pole after my car suddenly revved up,gained speed as I headed towards a telephone pole ,with loss of power steering ,brakes because my car quit after gaining speed due to the rpms amping up on their own and going down a hill. When I hit the pole,the telephone lines snapped and I was trapped in the car because they landed on my driver window and were shooting out sparks as if they were roman candles and a fire started on the right side of my car in some pine straw. When the firemen was able to get me out of the car he came to the passenger side and by then I had taken my seat belt off and the fireman advised me to get out of the passenger side if I was able and I told him that I was scared to let off the brake because I thought for some reason being out of my head that the car was going to roll if I let off the brake and he took his hand and slammed the car up in to park because I didn't even realize I had not put it in park. He said you can let your foot off the brake because it will not roll and I said I'm too scared .I asked..can I put the emergency brake on and he said yes and when I did it went straight to the floor. Then I continued to come out the passenger side and hop to the sidewalk with my feet together just in case anything was hot and to keep from getting electrocutied just in case something was still hot around us. When I was struck by the airbag the and the seat belt did its job I suppose but for some reason my neck was yanked so hard that it hurts so badd everyday when I didn't go to the hospital.I was unaware of any recalls when I purchased from a dealership on jan 18 2020. The day before I crashed we were traveling uphill &I had a friend with me that helped grab the wheel until it stopped after it revved up & quit.I attempted to crank it 3xs with success. I was stunned as to why it did it .

Filed Jul 26, 2020 · Engine · 204,000 miles · VA

This has been happening for several years, and happened again yesterday..... Pulled out onto 4 lane divided highway and traction control light came on, dash said "engine power reduced", but did not seem to be significantly low on power. Drove about 5 miles down the road, then car suddenly died. Was able to pull over to side of the road (with three small children in the vehicle), tried to restart the car but display said "starting disabled, service throttle". Waited about 5 minutes and car restarted. Was able to drive home, no reduced power but check engine light remained on. I have seen many comments online from others who own similar gm vehicles that have had similar issues. We have also had similar issues with our 2011 suburban, although no stalling. There should be an immediate recall for all 2008 - 2011 gm vehicles to repair this issue, most likely accelerator pedal position sensor.

Filed May 4, 2020 · Driver assistance, Engine · 100,000 miles · IA

While driving, the car in motion it completely loses power. Have experienced this while on highway, interstate, and in town roads. So problem occurs at any speed, and results in vehicle coasting to a stop as the steering and brakes stop working too. Has happened to me hundreds of times as we can not pin point problem, and has replaced numerous different parts trying to solve it. When power loss occurs there is very little to no time at all for driver to coast & steer vehicle & occupants to safety area on side of road. The dashboard information center will state "starting disabled, service throttle" also engine power reduced" and "service stablitrak." a new throttle has been put in vehicle and still does same thing. Over the year ive been dealing with this issue ive noticed it does it more in warm weather. After vehicle coast to a stop and is put in park and turned off, wait 5 to 10 minutes then vehicle will start up and no information or lights display in dash center, like it never happened.

Filed Aug 28, 2018 · Airbags, Engine · 131,000 miles · IL

Tl* the contact owns a 2009 chevrolet impala. While driving 70 MPH, the traction control indicator illuminated and the message "losing engine power" appeared. Afterwards, the steering wheel seized and the check engine warning indicator illuminated. The contact applied the emergency brake and the vehicle stopped. The contact stated that the vehicle was also included in the federal safety agency campaign number: 16v507000 (air bags). The vehicle was taken to yemm chevrolet buick gmc chrysler dodge jeep ram (2195 n henderson st, galesburg, il 61401, (309) 271-0106), but no assistance was provided. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failures. The failure mileage was 131,000.

Filed Feb 7, 2018 · 133,000 miles · WI

Service traction control message, check tire pressure light, check engine light, reduced engine power lights intermittently go on when driving down the highway. Problem accelerating when reduced engine power message is on. Lights/messages go away sometimes when driving and when I turn car off sometimes. Lights come back on in varying combinations with no warning when driving down the road.

Filed Dec 27, 2017 · Fuel system · 120,750 miles · IL

120,757 miles and the car is needing a 3rd gas pedal. The gas pedal was already replaced a few years back and gm was made aware of the issue, but I am having to replace it again, $339.00. Did I recieve a faulty replacement? Warning lights for traction control, check engine and message of reduced engine power. I've never had to replace a sensor/accelerator pedal once, let alone twice on a car!!

Filed Dec 24, 2017 · Electrical, Lights · 121,000 miles · IA

Low beam headlights quit working driving in the city , traction control and engine loss of power lights came on and car shut down while driving down the interstate doing 70 MPH . Door locks malfunction and quit working . This has happened to many times . Affraid to let the wife drive it to work because it has shut down quite a few times .

Filed Dec 19, 2017 · Acceleration, Engine · SC

Tl- contact owns a 2009 chevy impala lt... Transmission shut off while driving down main road... Transmission started having problems back in june of 2017. Transmission reduced power and shut off completely...contact was on main road when vehicle shut off vehicle shut off after a second time of the beltway.......vehicle started back up after thirty minutes.... Tr..... Received tk holdings notice traction control system light comes on .... Contact called chevy and airbags were replaced already.... 0 recalls associated with this VIN

Filed Nov 13, 2017 · Engine · 88,000 miles · VA

Displays "reduced engine power" on the dashboard and the engine light is on

Filed Sep 20, 2017 · Driver assistance · 131,100 miles · TX

Lost power and shut off completely when accelerated at high speed when getting onto a freeway. My husband was able to coast to an exit and get off. After waiting some minutes, turned car back on and was able to go home. Also traction control alert comes on when driving slow in a parking lot or making a slow right or left turn. Causes a grinding noise.