2009 Chevrolet Impala VEHICLE SPEED CONTROL

The contact owns a 2009 Chevrolet Impala. The contact stated that while driving at an undisclosed speed on separate occasions, the messages “Reduce Engine Power” and "Service Traction Control" were displayed on the instrument cluster, and the check engine warning light was illuminated. Additionally, the contact stated that the failure reoccurred while driving on a bumpy road surface and while turning the steering wheel. The vehicle was taken to an independent mechanic, where it was diagnosed that the throttle position sensor had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact stated that her father used an OBD reader and retrieved codes indicating that the throttle position sensor was faulty and needed to be replaced. The vehicle was repaired; however, the failure persisted. The contact stated that while driving at an undisclosed speed, the vehicle decelerated unintendedly. The vehicle was taken to an unknown dealer, who informed the contact that the VIN was not included in a recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 169,000.

My car has started slowing down abruptly and displaying Engine Power has been Reduced at random times, but has become more frequent. I have had an independent service center tell me it was the throttle body, so they replaced it. That didn't fix it, so they replaced the accelerator pedal/sensor. It still is happening and when on the interstate, it is so dangerous to slow down with no warning because you can get rear ended quite easily. This first started August 2021 when my wife and I started on a vacation and had to turn around and go home and is still happening, only more frequent. This past Saturday 7/16, I was traveling on Interstate 77 and the engine power kept cutting down about every 10 minutes, so I had to pull over and cut the engine off for a while until it reset. I can't trust it to go anywhere.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. WHILE ATTEMPTING TO ACCELERATE FROM A STOP, THE VEHICLE DID NOT MOVE AND THE CHECK ENGINE INDICATOR ILLUMINATED. THE CONTACT STATED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO GEORGE MATICK CHEVROLET (14001 TELEGRAPH RD, REDFORD, MI 48239, 313-531-7100) WHERE IT WAS DIAGNOSED THAT THE ACCELERATOR PEDAL NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS APPROXIMATELY 154,000.

TL* THE CONTACT'S BOYFRIEND OWNS A 2009 CHEVROLET IMPALA. ON SEVERAL OCCASIONS, WHILE THE CONTACT WAS DRIVING HER BOYFRIEND'S VEHICLE AT NORMAL SPEEDS, THE VEHICLE INDEPENDENTLY SLOWED DOWN. THE CONTACT PULLED OVER TO RESTART THE VEHICLE. WHILE THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE ACCELERATED RAPIDLY AND THE TRACTION CONTROL INDICATOR ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000.

WHILE ACCELERATING THE TRACTION CONTROL KICKS IN AND CANNOT ACCELERATE. THIS HAS HAPPENED WHILE BACKING UP, DRIVING STRAIGHT, AND TURNING. IT HAS MAINLY BEEN HAPPENING WHILE DRIVING IN THE CITY. WHEN I PUSH THE GAS PEDAL THE CAR DOESN'T MOVE. I HAVE ALMOST BEEN HIT BY OTHER VEHICLES WHILE STUCK.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. WHILE DRIVING 25 MPH AND APPROACHING AN INTERSECTION THE VEHICLE SUDDENLY DECELERATED. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT A SOLDER CONNECTION IN THE ACCELERATOR POSITION SENSOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 85,000. UPDATED 02/21/17*LJ *CN

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING 15 MPH, THE ACCELERATOR PEDAL FRACTURED BEING DETACHED FROM THE FLOORBOARD. THE CONTACT WAS ABLE TO COME TO A COMPLETE STOP AND ACTIVATE THE HAZARD LIGHTS. THE VEHICLE WAS TAKEN TO THE DEALER, HOWEVER THE VEHICLE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT DIAGNOSED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 147,000.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT THE VEHICLE HAD A FRACTURED SOLDER DEVICE, WHICH CAUSED THE ACCELERATOR PEDAL TO MALFUNCTION. THE DEALER DIAGNOSED THAT THE ACCELERATOR PEDAL WAS REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 153,000.

DRIVING DOWN ROAD, ENGINE LIGHT CAME ON, DISPLAYING "REDUCED POWER AND TRACTION CONTROL PROBLEM. TO IT TO CHEVY DEALER IN TOPEKA KS. THEN FOUND OUT THAT THIS HAPPENS A LOT, SOMETIMES CAR SHUTS OFF ALL TOGETHER. MAJOR SAFETY ISSUE, WHY IS THIS NOT A RECALL BY GM. LAW SUIT WAITING TO HAPPEN. CAN I FALL BACK ON GM FOR THE EXPENSE?.

I HAVE GOTTEN SERVERAL ERROR WITH CHECK SERVICE TRACTION CONTROL SINCE I PURCHASE THE USE CHEVELOT IMPALA LS 2009 BACK IN 2012. IT ALREADY HAD 88,000 MILES ON IT AND ABOUT A YEAR AFTER I HAD THE CAR I STARTED TO GET THIS MESSAGE. THE SECOND IT OCCURED I WAS ON FREEWAY AND THE ERROR CAME ON AND AFTER I GOT OFF ON THE EXIT MY CAR SHUT DOWN FOR ABOUT 5 MINUTES BEFORE I WAS ABLE TO START IT BACK UP. NOW I HAVE THIS ERROR THIS TIME AND EVERY NOW AND AGAIN IT FEEL LIKE THE CAR WANTS TO JERK EVERY NOW AND AGAIN AND IF I PRESS THE GAS PEDAL DOWN TO QUICKLY THE LIGHT ERROR FLASH WITH THE CAR SIGN SWIRLING MESSAGE ON THE DASHBOARD.

MY CAR WAS TAKEN INTO THE DEALER TO CHECK ON THE "SERVICE ENGINE SOON" WARNING AND I WAS INFORMED THAT THE COMPUTER SHOWED IT AS AN APPS ISSUE. THEY CHECKED THE APPS AND I WAS INFORMED THAT THEY COULDN'T FIND ANYTHING WRONG AND THAT IT HAD BEEN RESET WITHIN THE COMPUTER SYSTEM AND I WAS GOOD TO GO. TWO MONTHS LATER WHILE TRAVELING AT A SPEED OF 55 MPH ON A HIGHWAY, THE SERVICE ENGINE LIGHT CAME ON, SERVICE STABILITRAK APPEARED ON THE INSTRUMENT PANEL, TRACTION CONTROL OFF LIGHT UP ON THE INSTRUMENT PANEL AND THEN THE RING TONE AND THE "ENGINE POWER IS REDUCED" CAME ON THE INSTRUMENT PANEL. THE NEXT THING I KNEW WAS THAT I HAD ABSOLUTELY NO ACCELERATION AT ALL! I WAS EXTREMELY FORTUNATE THAT THE VEHICLES BEHIND ME WERE FAR ENOUGH BEHIND ME AND I WAS ABLE TO GET OFF OF THE ROAD AND ON TO THE SHOULDER. HAD THAT NOT BEEN THE CASE THERE COULD HAVE BEEN A SERIOUS ACCIDENT CAUSING NUMEROUS INDIVIDUALS TO BE INJURED OR KILLED. I HAD THE VEHICLE TOWED AND CHECKED AND IT WAS DEFINITELY THE APPS (ACCELERATOR PEDAL PERFORMANCE SENSOR) THAT WAS DEFECTIVE. NOW NEARLY 2 YEARS LATER, IT HAS HAPPENED AGAIN. THE EXACT SAME WARNINGS CAME ON AGAIN, ONLY THIS TIME I WAS TRAVELING IN INCLEMENT WEATHER AND DURING RUSH HOUR TRAFFIC. THERE ARE NUMEROUS COMPLAINTS REGARDING THE EXACT SAME ISSUE AND CHEVROLET/GM NEEDS TO ISSUE A RECALL AS THE APPS IS DEFECTIVE. IF NO RECALL IS ISSUED IT IS A MATTER OF TIME BEFORE INNOCENT PEOPLE ARE KILLED.

2009 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO CONNECTION WITHIN THE ACCELERATOR PEDAL POSITION SENSOR MAY REDUCED ENGINE POWER AND CAUSE LOSS OF TRACTION CONTROL ASSIST. *SMD

2009 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO ACCELERATOR PEDAL POSITION SENSOR ISSUES. *SMD THE CONSUMER DID NOT AGREE WITH CHEVROLET WHEN THEY STATED TO LET THE FAILURE OCCUR FIRST, THEN THEY WILL FIX IT. *JB

WHILE DRIVING, THERE IS A SUDDEN LOSS OF POWER. ENGINE AND TRACTION CONTROL LIGHTS COME ON. DRY PAVEMENT WITH NOTHING ON SURFACE TO LOSE TRACTION. HAVE TO COAST TO SIDE OF ROAD TO AVOID BEING STRUCK BY OTHER VEHICLES.

WHEN IM DRIVING ON THE FREEWAY OR DRIVING 35 MPH THE CAR GETS ON A LIMP MODE AND SHOWS A "POWER ENGINE REDUCE: AND TRACTION CONTROL AND SOMETIMES TURNS OFF ON ME WHILE DRIVING I ALREADY REPLACE THE (TPS) AND THE THROTTLE BODY BECAUSE THAT'S WHAT THE CAR COMPUTER WAS TELLING ME AND I ALREADY TOOK THE CAR TO A DIFFERENT MECHANICS AND THEY TELL ME NOTHING IS WRING WITH IT.

CAR STRUGGLES THEN KICKS INTO GEAR. GOT WARNING ABOUT TRACTION CONTROL FAILING THEN THE CAR SAYS 'ENGINE POWER REDUCED' AND SPEED CUTS IN HALF. *TR

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 30 MPH, THE REDUCE POWER AND THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A CERTIFIED MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE ACCELERATOR POSITION SENSOR FAILED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 102,000.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE SERVICE TRACTION CONTROL AND THE ENGINE POWER REDUCED WARNING LIGHT ILLUMINATED. IN ADDITION, THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN DIAGNOSED THAT THE ACCELERATOR PEDAL AND THE POSITION SENSORS NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 64,000.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 55 MPH, THE TRACTION CONTROL AND THE CHECK ENGINE INDICATORS ILLUMINATED. THE VEHICLE BEGAN TO DECELERATE AND THEN STALLED. THE DEALER STATED THAT THE FAILURE WAS DUE TO THE ELECTRONICS IN THE ACCELERATOR PEDAL. THE VEHICLE WAS REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 100,630. UPDATED 08/11/14*LJ

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT THE ACCELERATION SENSOR WAS MALFUNCTIONING WHICH CAUSED THE ENGINE TO IDLE. THE CONTACT MENTIONED THAT THE CHECK ENGINE AND TRACTION LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE TECHNICIAN DIAGNOSED THE ACCELERATION SENSOR NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 84,000 AND THE CURRENT MILEAGE WAS 86,490.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 75 MPH, THE VEHICLE SUDDENLY STALLED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AFTER APPROXIMATELY 30 MINUTES AND THE VEHICLE OPERATED NORMALLY. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE THROTTLE BODY SWITCH WAS FAULTY. THE THROTTLE BODY SWITCH WAS REPLACED AND THE DEFECT WAS REMEDIED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 94,600.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING 60 MPH, THE VEHICLE DECELERATED TO 20 MPH AS THE DECREASED POWER ENGINE LIGHT ILLUMINATED. THE FAILURE WAS EXPERIENCED SEVERAL TIMES AND AT VARIOUS SPEEDS. A LOCAL MECHANIC PERFORMED A DIAGNOSTIC AND LOCATED THE FAILURE AT THE THROTTLE POSITIONING SENSOR. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 48,000.

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE AT A STOP LIGHT WITH THE BRAKES APPLIED, SEVERAL WARNING LIGHTS ILLUMINATED INCLUDING THE ENGINE POWER REDUCTION AND TRACTION CONTROL LIGHTS. THE CONTACT INDICATED THAT THE VEHICLE SUDDENLY EXPERIENCED UNINTENDED ACCELERATION AND TRAVELED INTO A BUSY INTERSECTION, CRASHING INTO A SECOND VEHICLE. NO INJURIES WERE REPORTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE INCIDENT. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 100,000.

WHILE DRIVING ON THE FREEWAY THE ENGINE REDUCE POWER LIGHT CAME ON AND SECONDS LATER THE CAR LOST POWER. THIS HAS HAPPEN SEVERAL TIMES. TODAY 1/30/14 THIS HAS HAPPENED 4 TIMES. THIS IS A SAFETY HAZARD! I'VE SEEN SEVERAL COMPLAINTS ABOUT THIS ISSUE, PEOPLE ARE SPENDING HUNDREDS OF DOLLARS THINKING THE ISSUE IS BEING FIXED AND THE PROBLEM IS NEVER FIXED. AT THIS POINT IT LOOKS LIKE 100 OF PEOPLE WILL HAVE TO LOSE THEIR LIFE BEFORE A RECALL TAKES PLACE. AS A SINGLE PARENT (MY CHILDREN'S ONLY LIVING PARENT) THIS ISSUE SHAKE ME TO MY SOUL! *TR

DRIVING ABOUT 25MPH ON FEEDER, ENGINE REDUCED SPEED WITHOUT ANY WARNING. THEN PANEL SHOWED TRACTION CONTROL AND ENGINE REDUCED SPEED. I WAS THANKFUL I WAS GOING HOME. TERRIFIED EXPERIENCE. CHECKED ONLINE. OTHER PEOPLE BAD THE SAME EXPERIENCE AND ALMOST COSTING LIVES BECAUSE OF CLAIMS THE ENGINE STOPS ALSO WITHOUT WARNING. EVERYONE SAID FROM ACCELERATION PEDAL. WHY WAS THIS NOT RECALLED AND I'M HAVING TO TAKE THE CAR TO A SHOP. I CALLED A DEALER BUT DIDN'T OFFER MUCH ASSISTANCE. THIS IS DANGEROUS! *TR