2012 CHEVROLET IMPALA Engine Problems

I have about 08/1825 had the throttle body replaced on my vehicle which assisted with the problem temporarily. Then the problem started again 09/20/25 the car act like it’s stalling while driving and can’t see what hear the vehicle is in. The car is not getting any signal to the engine as I have been advised the TCM is faulty. There was a code of U0101.

I have trouble codes that occasionally come up even after vehicle has been serviced. The vehicle used to drive fine. Now it started miss firing. I was told the problem was coming from the engine compartment/sensors. An OBDII diagnosis detects a problem with B Camshaft Position Timing Over Advanced or System Performance Bank 2 (p0024). I fear that without the fix, the miss firing can cause an accident. The engine light is illuminated when this happens.

I put my car in reverse and the car turned off and have turn back on. When I try to start it, I don’t hear any fix or crank. Before this happened, my car was slow to change gear or it would will change so fast that my car will lose control and I did not feel safe at all.

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING AT 15 MPH, THE VEHICLE STALLED CAUSING THE STEERING TO LOCK AND THE BRAKES TO FAIL. AS A RESULT, THE VEHICLE CRASHED INTO STREET SIGN CAUSING THE VEHICLE TO FALL INTO A DITCH. THE CONTACT STATED THE ABS AND CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED.THERE WERE NO INJURIES SUSTAINED. THE VEHICLE WAS NOT DRIVABLE AND WAS TOWED TO AN IMPOUND LOT. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED AS OF YET. A DEALER WAS NOT CONTACTED. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 176,000.

Mileage: 176,000

MY CAR'S ENGINE ALWAYS FEELS LIKE IT'S DRAGGING IN THE FRONT AND SOUNDS REALLY REALLY BAD LIKE IT'S ABOUT TO EXPLODE OR SOMETHING IT MAKES A LOT OF NOISE AND TICKING SOUND AS WELL WHEN I'M DRIVING

Mileage: 162,500

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED THAT AFTER STARTING THE VEHICLE, THERE WAS AN ABNORMALLY LOUD SOUND COMING FROM BEHIND THE DASHBOARD. THE VEHICLE WAS DIAGNOSED BY AN INDEPENDENT MECHANIC AND THE CONTACT WAS INFORMED THAT THE AIR CONTROL MOTOR WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE AIR CONTROL REGULATOR ARM MOTOR WAS REPLACED HOWEVER, THE FAILURE RECURRED. A DEALER WAS NOT CONTACTED OR INFORMED OF THE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000.

Mileage: 90,000

ENGINE WARNING LIGHT AND CODES FOR TIMING CHAIN PROBLEM WHILE I WAS DRIVING. UNRESOLVED BY DEALERSHIP OR MANUFACTURER; BBB AUTOLINE SAID I SHOULD TURN TO NHTSA.

Mileage: 45,545

1ST - 8/11/2018 - 79,653 MILES - CHECK ENGINE LIGHT CAME ON, CODE P0411 SECONDARY AIR INJECTION SYSTEM INCORRECT FLOW DETECTED. DEALERSHIP STATED THE SOLENOID MALFUNCTION CHECK ENGINE CAME BACK ON, CODE P0411, CHEVROLET STATED THE SECONDARY AIR INJECTION SYSTEM IS FUNCTIONING AS DESIGNED AND RESET THE CODE. CHEVY'S STATED THE FAULTY SIR INJECTION SOLENOIDS BANK 1 AND 2 WAS THE CAUSE OF THE CHECK ENGINE LIGHT CODE P0411. ADVISED ME THAT THE BATTERY TERMINAL MAY BE THE ISSUE AND RECOMMENDED CHANGING IT. RECOMMEND A NEW ALTERNATOR. CHEVY WAS UNABLE TO VERIFY THE CODE P0411 BUT MADE A RECOMMENDATION FOR THE ISSUE. CHECK ENGINE LIGHT CAME BACK ON AGAIN, NO OTHER ISSUES WITH THE VEHICLE AT THAT TIME. GM OPENED A TAC CASE. ADVISED BY TAC THAT CARBON BUILDUP IN THE CYLINDER VALVES FROM THE CYLINDER HEADS WAS THE CAUSE. TOLD TO DRIVE VEHICLE FOR A FEW DAYS. WITHIN 3 DAYS CHECK ENGINE LIGHT CAME BACK ON. CHEVY INSTALLED A VEHICLE DATA RECORDER PER THE GM FIELD SERVICE ENGINEER. TEST RESULTS SHOWED BOTH AIR INJECTION CUT OF VALVES NEEDED TO BE REPLACED. FUTURE ALSO UPDATED ECM CALIBRATION AND PROGRAMMED IT - COVERED UNDER WARRANTY. 6TH VISIT ON 9/3/2019 AT 85970 MILES CHEVROLET ADVISED THE CAUSE IS DUE TO THE LEFT TEMPERATURE CONTROL AND AIR INLET ACTUATORS. 7TH - 9TH TIME, ADVISED BY INDEPENDENT AUTO REPAIR SHOP, THAT EVERYTHING WAS WORKING AS NORMAL. CHECK ENGINE LIGHT CODE WAS RESET. ADVISED CAR NEEDS TO BE CALIBRATED AT GM-APPROVED DEALERSHIP. AS OF TODAY, THE CHECK ENGINE LIGHT REMAINS ON. THE FINAL SHOP ADVISED THE ISSUE MAY BE THAT THE SYSTEM WAS NOT CALIBRATED OR JUST NEEDED TO BE CALIBRATED EVERY TIME THE CHECK ENGINE LIGHT CAME ON. I BELIEVE THAT THOUSANDS OF GM CUSTOMERS ARE PAYING OUT OF POCKET FOR UNNECESSARY P0411 REPAIR WORK.*DT*JB

ABOUT 2 MONTHS AGO THE ENGINE STARTING DIESELING (THE ENGINE WILL STILL HAVE COMBUSTION AFTER THE IGNITION WAS TURNED OFF). DURING A TRIP ON CITY STREETS THE ENGINE SUDDENLY STOPPED WHEN DRIVING. I WAS ABLE TO PUT THE CAR IN NEUTRAL AND RESTART THE ENGINE. ABOUT 15 MINUTES LATER THE ENGINE STOPPED AGAIN THIS TIME WHILE STOPPED ON A TRAFFIC LIGHT. I COULD NOT RESTART THE CAR. I HAD IT TOWED TO THE AUTOLAB IN PLYMOUTH MI WHERE THEY DIAGNOSED IT WITH ENGINE FLOODING. YOU COULD SMELL THE UNBURNED GASOLINE ON THE TAIL PIPE. HOWEVER NO ERROR CODES WERE REPORTED. AFTER A FEW DAYS IN THE FACILITY AND WITHOUT THE EVEN DUPLICATED I HAD THE CAR BACK. COUPLE WEEKS LATER IT STARTED DIESELING AGAIN SO I WENT BACK TO THE AUTOLAB. THIS TIME THEY WERE ABLE TO DIAGNOSE THE INJECTION PUMP AS BEING FAULTY AND THE O2 SENSOR NOT BEING ABLE TO CONTROL THE FUELING. THEY REPLACED THE INJECTION PUMP AND SINCE THEN THE VEHICLE IS RUNNING WITHOUT PROBLEM. THE LACK OF ERROR REPORTING BY THE OBD AND THE SUDDEN ENGINE STOP WHILE THE CAR WAS IN MOTION MAKES ME FEEL I WAS LUCKY. I USUALLY DRIVE 30 MILE EACH WAY TO MY WORK PLACE. IF THE ENGINE STOPS ON THE HIGHWAY IT WILL CAUSE AN ACCIDENT AS I AM NOT ABLE TO USE THE BRAKES (POWER BRAKES!) OR THE STEERING WHEEL (POWER STEERING) PROPERLY TO TRY TO GET AWAY FROM THE TRAFFIC BEHIND BY GOING TO THE SHOULDER.

Mileage: 113,000

SERVICE STABILITRAK CAME ON WHEN MERGING ON TO THE FREEWAY, (WHICH INVOLVED A TURN TO GET ON THE ON-RAMP,) SHUTTING DOWN THE CAR COMPLETELY. ALMOST HIT BY A SEMI. I HAVE HAD THE BEARINGS REPLACED BECAUSE OF STABILITRAK LIGHT. HOW HAS THIS NOT BEEN RECALLED? MY FRIEND AND I ALMOST DIED BECAUSE OF THE FAULTY SENSORS OR WHATEVER IT IS WITH THESE CRAP BEARINGS. I WAS TOLD HOW THE BEARINGS ARE MADE WITH THE SENSORS BEING PLACED IN A COMPLETELY RIDICULOUS SPOT BY AUTO PARTS STORES. SAW PLENTY OF COMPLAINTS ONLINE WITH THIS VEHICLE. SAME ISSUE. HOW HAS NOTHING BEEN DONE WITH THIS?

Mileage: 93,775

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE SHUT OFF WITHOUT WARNING. THE VEHICLE WAS TOWED TO PREMIER NISSAN OF METAIRIE (504-455-5800, LOCATED AT 6636 VETERANS MEMORIAL BLVD, METAIRIE, LA 70003) TO BE DIAGNOSED, BUT THE FAILURE COULD NOT BE DUPLICATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND RECOMMENDED A DIAGNOSTIC TEST. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE SEVEN DIFFERENT FAILURE CODES WERE LOCATED, INCLUDING THE CAM SHAFT POSITION SENSOR AND THE POWER TRAIN CONTROL RELAY. THE CONTACT REPLACED THE PARTS, BUT THE FAILURE RECURRED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 76,000. THE VIN WAS NOT PROVIDED.

Mileage: 76,000

TAKATA RECALL MY CAR FEEL LIKE ITS LOOSING POWER WHEN I START IT UP AND THE IGNITION HOUSING NEED TO BE REPLACE

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING AT APPROXIMATELY 35 MPH, THE VEHICLE OVERHEATED WITHOUT WARNING. THE VEHICLE HAD TO BE JUMP STARTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE GASKETS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. A LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE BUT OFFERED NO FURTHER ASSISTANCE. THE FAILURE MILEAGE WAS 100,000. THE VIN WAS NOT AVAILABLE.

Mileage: 100,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING 40 MPH, THE TRACTION CONTROL, TRACTION STABILIZER, AND REDUCED ENGINE POWER WARNING INDICATORS ILLUMINATED. THE CONTACT STATED THAT THE VEHICLE NEVER STALLED; HOWEVER, THERE WAS NO RESPONSE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE VEHICLE WAS NOT DIAGNOSED AND A DEALER WAS NOT CONTACTED. THE MANUFACTURER STATED THAT THE ISSUE COULD BE DUE TO THE THROTTLE BODY. THE CONTACT WAS ALSO INFORMED BY THE MANUFACTURER THAT THERE WAS A SPECIAL COVERAGE TO HAVE THE VEHICLE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 84,000.

Mileage: 84,000

I PURCHASED THIS CAR USED IN 2014 WITH ~30,000 MILES, AND IT PRESENTLY HAS ~85,000 MILES. IN THAT TIME I HAVE REPLACED 4 GAS PEDALS BECAUSE THE ALERT TRIGGERED "SERVICE STABILITRAK" TELLS THE TECHNICIAN TO REPLACE THE GAS PEDAL - CLEARLY NOT THE PROBLEM. ESSENTIALLY, WHEN THE DEFECT OCCURS, ENGINE POWER IS REDUCED TO WHERE THE CAR CAN BARELY GET OUT OF ITS OWN WAY WHICH IS REALLY DANGEROUS DURING HIGHWAY RUSH HOUR (WHEN FOLKS DRIVE MORE AGGRESSIVELY) OR PULLING ONTO A ROADWAY FROM A DEAD STOP. IF I POWER THE CAR DOWN AND RESTART IT, THE ERROR WILL USUALLY CLEAR, BUT OFTEN REOCCURS. SINCE IT TENDS TO HAPPEN ON HOT, SUNNY DAYS (TEMP >75F) WHEN THE A/C IS RUNNING, IT FEELS LIKE A WIRING PROBLEM. THE DEALER SERVICE DEPARTMENT SUGGESTED REPLACING THE BODY CONTROL MODULE, BUT COULD NOT GUARANTEE THAT WOULD RESOLVE THE ISSUE. BASED UPON THE NUMBER OF COMPLAINTS OVER A SIMILAR ISSUE, IT APPEARS THAT GM HAS A PROBLEM THAT IT IS NOT WILLING TO ADDRESS WITH A RECALL OR SERVICE BULLETIN.

Mileage: 85,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING VARIOUS SPEEDS, WHEN THE CONTACT WOULD MAKE A TURN OR HIT A BUMP IN THE ROAD, HE HEARD AN ABNORMAL POP SOUND WITHOUT WARNING. IN ADDITION, THE CONTACT OBSERVED FLUID LEAKING IN THE FRONT MIDDLE OF THE VEHICLE. THE DEALER (HENDRICK CHEVROLET, 100 AUTO MALL DRIVE, CARY, NC, 27511, 919-439-5132) ADVISED THE CONTACT TO TAKE THE VEHICLE TO A LOCAL CHEVROLET DEALER SINCE THEY WERE OUT OF STATE. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (DAN VADEN CHEVROLET SAVANNAH, 9393 ABERCORN ST, SAVANNAH, GA, 31406) WHERE IT WAS DIAGNOSED THAT THE STEERING RACK, BRAKES/ ROTORS, AND TIE ROD NEEDED TO BE REPLACED. ALSO, AN ALIGNMENT WAS NEEDED. THE STEERING RACK, BRAKES/ROTORS, TIE ROD, AND ALIGNMENT WERE REPAIRED. THE CONTACT STATED THAT THE ENGINE NOW SHAKES INDEPENDENTLY WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED FOR THE FAILURE. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 8-3209374202. THE FAILURE MILEAGE WAS APPROXIMATELY 86,800.

Mileage: 86,800

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHEN THE VEHICLE MADE LEFT TURNS AT LESS THAN 5 MPH, IT WOULD SOMETIMES STALL AND DECELERATE. THE CONTACT DID NOT NOTICE IF THERE WERE ANY WARNING INDICATORS ILLUMINATED AT THE TIME OF THE FAILURE. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 36,000. UPDATED 01/11/2017*CT *TR

Mileage: 36,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE THE VEHICLE WAS STATIONARY, THE PASSENGER SIDE AIR BAG COVER DETACHED FROM THE VEHICLE. IN ADDITION, THE REAR FRAME OF THE VEHICLE WAS RUSTED, THE ENGINE LEAKED TRANSMISSION OIL AND FUEL, AND THE BRAKES MALFUNCTIONED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 20,000.

Mileage: 20,000

I WAS STANDING IN TRAFFIC AND SMOKE START COMING INSIDE THE CAR FROM ENGINE AND THE ENGINE START ON FIRE THE CAR BURN FROM THE ENGINE OUT ??? AND I FOUND THIS INFORMATION ABOUT SAFETY PROBLEMS AND RECALLS ON THIS CAR MODEL ON THE INTERNET ABOUT THIS CAR MODEL AND YEAR HAVE FIRE HAZARD PROBLEMS PLEASE REVIEW AND HELP ME TO FOUND ANY ANSWER THANK YOU *TR

Mileage: 93,700

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING 50 MPH, THE VEHICLE JERKED. IN ADDITION, THE CHECK ENGINE AND TRACTION CONTROL WARNING LIGHTS ILLUMINATED. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000.

Mileage: 100,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING AT AN UNKNOWN SPEED, THE ACCELERATOR PEDAL WAS DEPRESSED AND THE ENGINE REVVED AND STALLED. AN UNKNOWN WARNING INDICATOR ILLUMINATED. THE FAILURE RECURRED TWICE. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.

Mileage: 40,000

I WAS DRIVING DOWN A HILL ON KALAMAZOOST IN LANSING MICH. MY POWER STEERING AND POWER BRAKES STOPPED WORKING. I PULLED ON THE STEERING WHEEL TO TURN THE CAR INTO A HEDGE OF BUSHED ON THE SIDE OF THE ROAD. IT STOPPED BEFORE I HIT THEM.

Mileage: 70,517

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 5-10 MPH, THE VEHICLE STALLED AND DID NOT RESTART. THE VEHICLE WAS TOWED TO THE DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MECHANIC REPLACED THE IGNITION LOCK SWITCH, THE CODES WERE RESET, AND THE BODY CONTROL MODULE WAS REPLACED; HOWEVER, THE FAILURE RECURRED MULTIPLE TIMES. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS APPROXIMATELY 20,624. UPDATED 09/10/15*LJ UPDATED 10/26/2017*CN

Mileage: 20,624

GM SERVICE BULLETIN ID: 3650687. *TR

Mileage: 25,000

ACCELERATOR RESPONSE TIME TAKES TOO LONG TO RE-ACCELERATE . AFTER LETTING OFF GAS THEN RE-APPLYING PEDAL WHILE DRIVING, RESPONSE TIME SHOULD BE 800 MILI SECONDS FOR AN ELECTRONIC ACCELERATOR BUT , IT IS WAY LONGER AND MAKES CAR BACKFIRE AT TIMES IF I HOLD PEDAL AFTER THE LAG IN RESPONSE . THIS CAUSES CAR TO LUNGE AND COULD CAUSE ME TO GET REAR ENDED OR DAMAGE ENGINE. SECOND, RUBBING GRINDING NOISE (NOT LOUD) FROM RIGHT FRONT AND MORE NOTICEABLE WHILE TRAVELING AT 35-40 MPH AROUND A LEFT BEND IN ROAD OR BY MOVING STEERING WHEEL TO LEFT ABOUT AN INCH WHILE DRIVING STRAIGHT DOWN ROAD. DEALER CLAIMED NO PROBLEM FOUND ON EITHER ISSUE , ALTHOUGH THEY CLAIMED TO HAVE REPLACED A STRUT BEARING ON RIGHT FRONT. THERE MUST HAVE BEEN A PREVIOUS ISSUE JUDGING BY THE WORN TIRE BEFORE I PURCHASED CAR. I FIGURED IT WAS AN ALIGNMENT PROBLEM THAT MAY HAVE BEEN FIXED BECAUSE CAR DIDN'T PULL TO ONE SIDE AND DROVE STRAIGHT , BUT APPARENTLY THERE IS STILL AN ISSUE AND NOISE IS SLOWLY GETTING MORE NOTICEABLE UNLESS I'M JUST TUNED INTO IT. *TR

Mileage: 18,120

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED THAT THERE WAS AN ABNORMAL NOISE COMING FROM THE ENGINE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 20,000.

Mileage: 20,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED THAT THE VEHICLE STALLED AND A CLICKING SOUND EMITTED FROM THE FRONT DRIVER'S TIRE. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 32,000.

Mileage: 32,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING 40 MPH, THE ENGINE STALLED. THE CONTACT WAS ABLE TO MERGE TO SIDE OF THE ROAD AND RESTARTED THE VEHICLE. THE CONTACT RECEIVED A NOTIFICATION FOR RECALL NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM).THE VEHICLE WAS TAKEN TO DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 30,000.

Mileage: 30,000

I AM EXTREMELY UNSATISFIED WITH MY AUTO. I DO NOT WANT A AUTO THAT I CAN NOT TRUST. THIS VEHICLE IS NOT WORTH WHAT I PAID FOR IT. I AM IN AN UPSIDE DOWN LOAN AND CAN NOT GET RID OF IT. WHAT CAN YOU DO TO HELP ME? *TR

Mileage: 22,000

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE SUDDENLY ACCELERATED, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER, AND THE ENGINE STALLED. AS A RESULT OF THE FAILURE, THE REAR END OF THE VEHICLE CRASHED INTO A POLE. THE CONTACT SUSTAINED NECK AND BACK INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT WAS INFORMED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM). THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 88,000.

Mileage: 88,000

THE ENGINE SHUT OFF AFTER HITTING A LARGE BUMP IN THE ROAD. THE ENGINE SHUT OFF A SECOND TIME AGAIN AFTER HITTING A LARGE BUMP IN THE ROAD. THE POWER STEERING AND POWER BRAKES WERE BOTH AFFECTED. THE CAR RESTARTED. THE DEALER LOOKED AT THE CAR AND COULDN'T DUPLICATE THE CONDITION. THE PROBLEM WENT AWAY AFTER I REMOVED ALL THE KEYS FROM THE KEY-RING. *TR

Mileage: 11,500

CAR EXPERIENCED COMPLETE ENGINE AND ELECTRICAL SYSTEM FAILURE WHILE ACCELERATING ONTO BUSY HIGHWAY. THERE WAS NO EMERGENCY LANE, SO BROUGHT CAR TO A HALT BLOCKING ONE LANE. THIS WAS AS VERY DANGEROUS SITUATION. LATER DETERMINED THAT THE CAUSE WAS A LOOSE HOT WIRE TERMINAL CONNECTION TO THE FUSE BOX. IT HAD EITHER VIBRATED LOOSE OR WAS NOT TIGHTENED ADEQUATELY AT TIME OF MANUFACTURE. LOCAL DEALER WAS NOT INTERESTED IN REPORTING THIS EVENT TO THE GM DATA BASE, SO GAVE ME A CHEVROLET CUSTOMER SERVICE NUMBER TO CALL, WHICH I DID. *TR

Mileage: 66,000

WHEN DRIVING WITH THE ENGINE AT LOWER THAN NORMAL DRIVING TEMPERATURE, DRIVER STOPS AT A STOP SIGN AND WITH HARD ACCELERATION THE ENGINE SURGES FROM FULL POWER TO DYING OUT AS THO FUEL STARVED.THIS CONTINUES IN A JERKING ACTION. UNTIL; THE DRIVER REMOVES HIS FOOT FROM THE ACCELERATOR AND THEN PRESSES THE GAS FEED AGAIN AT WHICH TIME THE ENGINE RUNS SMOOTHLY. THIS HAS HAPPENED ON NUMEROUS OCCASIONS, HOWEVER THE DEALERSHIP CAN FIND NOTHING WRONG AS THE ENGINE IS NOW AT NORMAL RUNNING TEMP. DRIVER WAS TOLD THE PROBLEM IS IN THE THROTTLE BODY OF THE FUEL SYSTEM --- HELP.. *TR

Mileage: 29,000

THE ENGINE DIED IN A HARD RAIN,WIPERS QUIT, FLASHERS CAME ON, WINDOWS WENT UP AND DOWN, CD PLAYER QUIT AND RADIO CAME ON, THEN FLASHERS WENT OFF. WINDOWS WOULD NOT GO BACK UP SOAKING THE INSIDE OF THE DOORS.THIS IS MY WIFE'S CAR AND NOW SHE IS AFRAID TO DRIVE IT. I CALLED THE DEALER TWICE AND GOT A RECORDING ASKING ME TO LEAVE A BRIEF MESSAGE. IF THEY DON'T HAVE TIME TO ANSWER THE PHONE, HOW LONG WILL IT TAKE TO FIX IT? *TR

Mileage: 3,360

PURCHASED A GM CERTIFIED VEHICLE. VEHICLE STALLED SEVERAL TIMES WHENEVER MAKING A LEFT HAND TURN. WHEN I WOULD MAKE A LEFT HAND TURN, THE VEHICLE WOULD DIE COMPLETELY IN THE MIDDLE OF THE TURN. I WOULD HAVE TO RESTART THE CAR. ONE INSTANCE WHEN TRYING TO RESTART THE CAR, THE IGNITION ACTED "STUCK." I ONLY TURNED THE IGNITION ONCE AND THE CAR CONTINUED TO CRANK OVER TO RESTART THE CAR ON ITS OWN. THE LAST COUPLE OF INSTANCES WHEN TAKING THE CAR TO THE DEALERSHIP, IT DIED, EVEN WHEN NOT MAKING A LEFT HAND TURN. IT WOULD DIE PERIODICALLY WHILE DRIVING DOWN THE STREET. I TOOK THE VEHICLE INTO MAIN MOTORS (A GM DEALERSHIP) TO HAVE IT FIXED. THEY SAID THE WIRES WERE WORN THROUGH IN THE ENGINE COMPARTMENT THAT RUN TO THE ELECTRONIC CONTROL MODULE. THEY STATED THEY REROUTED THE WIRES. MY BILL WAS ONLY FOR LABOR, NO REPLACEMENT OF PARTS. I ASKED GM TO COVER THIS. THE SERVICE ADVISER TOLD THE FIRST AGENT AT GM THAT IT WAS A DEFECTIVE WIRE HARNESS. THEN THE CASE WAS DIRECTED TO A "DISTRICT SPECIALIST." THE DISTRICT SPECIALIST STATED THAT THE SERVICE MANAGER AT MAIN MOTORS RETRACTED THE STATEMENT THAT IT WAS A DEFECT AND STATED IT WAS NORMAL WEAR AND TEAR FOR ELECTRICAL WIRES IN THE ENGINE COMPARTMENT TO BE WORN THROUGH. NOT A SAFE DESIGN FOR AN ELECTRICAL SYSTEM TO NOT LAST PAST 55000 MILES. *TR

Mileage: 55,000

I STOPPED AT A INTERSECTION,AND PULLED OUT ONTO ANOTHER ROAD,THE CAR BACKFIRED AND QUIT RUNNING ,LEAVING ME IN THE MIDDLE OF THE INTERSECTION,AND ALMOST GOT HIT. I HAVE TAKEN CAR TO DEALER AND THEY SAY THE CAR IS OPERATING NORMAL. THIS HAPPENS ALOT WITHIN THIS VEHICLE WHEN ACCELERATING. *TR

Mileage: 17,500

TL* THE CONTACT OWNS A 2012 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING AT LOW SPEEDS, ENGINE VIBRATIONS WERE EXPERIENCED. THE VEHICLE WAS TAKEN TO A DEALER FOR REPAIR BUT THE TECHNICIAN WAS UNSURE OF WHAT COMPONENT FAILED OR HOW TO REMEDY THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE FAILURE AND WAS AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 50 AND THE CURRENT MILEAGE WAS 12,000. UPDATED 3/14/13 *CN

Mileage: 50

I HAVE NOTICED WHEN TAKING OFF FROM A STAND STILL THE RPM ARE HIGH AND THE ENGINE IS VERY LOUD AND NOISY. IT SEEMS AS I AM DRIVING WITH A V-8 OR EVEN A DIESEL ENGINE. I AM SURE GM HAS BEEN NOTIFIED OF THIS AS WELL AS SOME OF THE OTHER COMPLAINTS I HAVE REVIEWED HAS STATED THE SAME THING. SOMETHING NEEDS TO BE DONE ABOUT THE IDLING OF THE RPMS WHEN YOUR JUST TAKING OFF AT A NORMAL SPEED AND THE REDUCTION OF THE ENGINE NOISE AS WELL. MY 2002 IMPALA WITH 136K MILES ON IT SOUNDED BETTER THAN THIS AND IT NEEDED SOME WORK DONE TO IT. I THOUGHT I WOULD AT LEAST GET THE BEST QUALITY FROM UPGRADING TO SOMETHING MORE UP TO DATE BUT WAS VERY DISAPPOINTED. IF YOUR GOING TO PAY GOOD MONEY FOR A VEHICLE YOU SHOULD HAVE A DECENT CAR THAT DOESN'T SOUND LIKE A PIECE OF CRAP. CAN GM GET IT TO WHERE IT IS RUNNING AS GOOD AS IT LOOKS? *TR

Mileage: 11,140

VEHICLE STARTED VIA NORMAL KEY IGNITION. AFTER HIGH IDLING STOPS FOR WARM UP, VEHICLE STARTS TO HAVE ODOMETER NEEDLE MOVE FROM 500 RPM TO 1000 RPM FOR A STEADY 5 TO TEN MINUTES. IN ADDITION, EVENT OCCURS FREQUENTLY AT LONG STOPS EVEN AFTER CAR WARM. USUALLY, RPM MAY STEADY AT ABOUT 750 OR SO A NORMAL RPM SETTING FOR THIS VEHICLE. TOOK VEHICLE TO DEALER WHO KEPT IT FOR A WEEK. NO CORRECTION MADE. DEALER STATE WAITING TO HEAR FROM MANUFACTURER. VEHICLE STILL HAVE PROBLEM HAVING NEEDLE FLUTTER BETWEEN THE RPM MENTIONED CAUSING UNDUE DISTRESS TO ENGINE COMPONENTS. PLEASE ASSIST. *TR

Mileage: 7,000

ENGINE MAKES A KNOCKING NOISE WHILE ACCELERATING. I DROVE ANOTHER ONE AND THE NOISE WAS EVEN WORSE, THAT ONE HAD 15000 MILES ON IT. THIS SEEMS TO BE A COMMON PROBLEM WITH THEM ALL. I AM VERY UNHAPPY WITH THIS CAR. I DON'T ENJOY HEARING ALL THIS NOISE FROM A NEW CAR. (NOW HAS 6000 MILES ON IT) IF I CAN'T RESOLVE THIS PROBLEM IT WILL BE THE LAST GM CAR I EVER BUY. THE DEALER HAD ME DRIVE ANOTHER NEW 2012 IMPALA WHEN I MENTIONED THE NOISE, IT ALSO SOUNDED THE SAME. GM DEFINITELY DIDN'T ADDRESS THIS PROBLEM BEFORE PRODUCTION. *JS

Mileage: 10