NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
47 reportsClear category filter60,500 miles · Mar 10, 2012
Power Train
MY VEHICLE HAS 73000 MILES ON IT THE TRANSMISSION HAS BEEN SLIPPING AND SHIFTING HARD SINCE NOV 2011. I HAD THE TRANSMISSION SERVICED AS ADVISED BY A DEALERSHIP. NO CHANGE I HAVE A N EXTENDED WARRANTY THAT COVERS THE PROBLEM IF THE DEALER SHIP FINDS THE PROBLEM. I TOOK IT TO THE PLACE I BOUGHT THAT CAR FROM . THEY HAD A MECHANIC…
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MY VEHICLE HAS 73000 MILES ON IT THE TRANSMISSION HAS BEEN SLIPPING AND SHIFTING HARD SINCE NOV 2011. I HAD THE TRANSMISSION SERVICED AS ADVISED BY A DEALERSHIP. NO CHANGE I HAVE A N EXTENDED WARRANTY THAT COVERS THE PROBLEM IF THE DEALER SHIP FINDS THE PROBLEM. I TOOK IT TO THE PLACE I BOUGHT THAT CAR FROM . THEY HAD A MECHANIC GET IN TEST DRIVE IT WITH A HAND HELD METER FOR ABOUT 15 MINUTES A. THEY REPORTED THAT NOTHING SHOWED UP AND THE TRANS IS FINE. I TOOK IT HOME AND THE ENTIRE WAY THERE IT SLIPPED FROM ASTOP POSITION AND SHIFTED HARD INTO GEAR. I OWE OVER A YEAR AND A HALF STILL IN PAYMENT'S FOR THE CAR AND THE EXTENDED WARRANTY EXPIRES ON APRIL 22 20012 . I DON'T HAVE MUCH TIME TO GO WHAT DO I DO. JOHN B I HAVE REPORTED THE CAR A ND DEALER TO BBS FOR WHAT THAT IS WORTH. *TR
NHTSA ODI #10451075
Mileage unknown · Jul 28, 2011
Electrical SystemPower Train
I BOUGHT A 2004 CHEVY IMPALA WITH 76,000 MILE'S ON IT AND I HAVE BEEN HAVING A TON OF PROBLEMS WITH IT EVEN AFTER SPENDING HUNDREDS OF DOLLARS IN SHOP FEES TRYING TO FIX THE PROBLEM'S, THE SPEEDOMETER STICKS OR JUST DOESN'T WORK AT ALL SO I CAN NEVER TELL HOW FAST I'M GOING ALONG WITH THE TEMP. GAUGE SO I CAN'T TELL IF THE CAR I…
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I BOUGHT A 2004 CHEVY IMPALA WITH 76,000 MILE'S ON IT AND I HAVE BEEN HAVING A TON OF PROBLEMS WITH IT EVEN AFTER SPENDING HUNDREDS OF DOLLARS IN SHOP FEES TRYING TO FIX THE PROBLEM'S, THE SPEEDOMETER STICKS OR JUST DOESN'T WORK AT ALL SO I CAN NEVER TELL HOW FAST I'M GOING ALONG WITH THE TEMP. GAUGE SO I CAN'T TELL IF THE CAR IS OVER HEATING OR NOT. THE GAUGE CLUSTER IS FAULTY AND THE GAUGES ONLY WORK WHEN THEY WANT TO. I ALSO HAVE PROBLEMS WITH THE AUTOMATIC TRANSMISSION SLIPPING FROM 1-2, THE HIGH BEAM SWITCH DOESN'T WORK UNLESS YOU HOLD IT AND ANY TIME YOU USE A WINDOW OF HAVE THE REAR WINDOW DEFROST ON THE RADIO IS ALL STATIC. *TR
NHTSA ODI #10415563
90,000 miles · Sep 9, 2010
Power Train
THE TRANSMISSION IN MY 2004 IMPALA HAS SLIP SO BAD THAT I WAS ALMOST HIT FROM BEHIND. IT KICKED SO HARD IN RAINING WEATHER THE CAR SWERVE ON THE ROAD. *TR
NHTSA ODI #10354780
86,000 miles · Dec 29, 2009
Electrical SystemPower Train
VEHICLE SPEEDOMETER SUDDENLY QUITS FUNCTIONING. SPEEDOMETER SUDDENLY SHOWS HIGH SPEED (EXAMPLE 120 MPH) WHEN DRIVING HIGHWAY SPEEDS. SPEEDOMETER REMAINS STUCK IN THIS POSITION. I WAS ABLE TO CLEAR THE ERROR AFTER RETURNING HOME AND CYCLING THE IGNITION FROM OFF TO ON MANY MANY TIMES. NOW THE TACH JUST '!@#$% OUT AND STAYS AT 6:0…
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VEHICLE SPEEDOMETER SUDDENLY QUITS FUNCTIONING. SPEEDOMETER SUDDENLY SHOWS HIGH SPEED (EXAMPLE 120 MPH) WHEN DRIVING HIGHWAY SPEEDS. SPEEDOMETER REMAINS STUCK IN THIS POSITION. I WAS ABLE TO CLEAR THE ERROR AFTER RETURNING HOME AND CYCLING THE IGNITION FROM OFF TO ON MANY MANY TIMES. NOW THE TACH JUST '!@#$% OUT AND STAYS AT 6:00. I BEEN ALSO HAVING TRANSMISSION ISSUES TO WHERE THE TRANNY WOULD OCCASIONALLY SHIFT HARD THEN BE FINE FOR A WHILE THEN BACK TO SHIFTING HARD? *TR
NHTSA ODI #10297379
64,000 miles · Jul 17, 2009
Power Train
MY 2004 CHEVROLET IMPALAS TRANSMISSION JUMPS INTO GEAR MAKING THE CAR GO FORWARD IN AN UNSAFE MANNER. I CONTACTED GM AND THEY TOLD ME TOUGH LUCK. THE CAR ONLY HAS 65,000 MILES ON IT. I CAN'T BELIEVE THEY WON'T FIX THIS DEFECTIVE TRANSMISSION. I WENT TO CAR COMPLAINTS DOT COM AND FOUND HUNDREDS OF SIMILAR COMPLAINTS. *TR
NHTSA ODI #10277072
60,000 miles · Apr 14, 2009
Power Train
I PURCHASED MY 02 IMPALA LATE 07 USED, IT HAD APPROX. 30K MILES. ABOUT 60K MILES IT STARTED TO HARD SHIFT, THEN STARTED OVERHEATING. IT WOULD ONLY HARD SHIFT WHEN PUT INTO REVERSE, 1ST AND 2ND EVERY NOW AND THEN AND AS THE TIME HAS GONE ON ITS DOING IT MORE AND MORE, AND SHIFTING EVEN HARDER, I CALLED A DEALERSHIP AND THEY SAID …
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I PURCHASED MY 02 IMPALA LATE 07 USED, IT HAD APPROX. 30K MILES. ABOUT 60K MILES IT STARTED TO HARD SHIFT, THEN STARTED OVERHEATING. IT WOULD ONLY HARD SHIFT WHEN PUT INTO REVERSE, 1ST AND 2ND EVERY NOW AND THEN AND AS THE TIME HAS GONE ON ITS DOING IT MORE AND MORE, AND SHIFTING EVEN HARDER, I CALLED A DEALERSHIP AND THEY SAID TOUGH. I AM VERY UNHAPPY WITH THIS PROBLEM, I HAVE A 2 YEAR OLD IN MY CAR WITH ME AT ALL TIMES AND THIS ISSUE IS NOT SAFE. OTHER THAN THIS I LOVE THE CAR. ITS GREAT ON GAS AND ALL AROUND WONDERFUL, I AM JUST VERY UNHAPPY WITH THE TRANSMISSION. I TOOK IT TO AAMCO AND THEY SAID ITS GOING TO NEED TO BE REPLACED SOON, HARD SHIFT AND LONG SHIFT. AND THEY SAID THAT IF I KEEP DRIVING IT I WILL BE DOING MAJOR HARM TO THE TRANNY. I CANT AFFORD THIS AND IT SEEMS AS IF I AM NOT THE ONLY ONE WITH THIS PROBLEM. I KNOW 1 OTHER PERSON THAT HAS AN 04 IMPALA AND THEY HAVE THE SAME PROBLEM. *TR
NHTSA ODI #10265198
55,000 miles · Oct 20, 2008
Electrical SystemPower Train
THE SPEEDOMETER DOESN'T WORK SOMETIMES. WHEN IT MOVES IT DOESN'T MOVE SMOOTHLY, BUT IT JERKS UP AND DOWN, OFTEN INDICATING AN INCORRECT SPEED. THE CAR HAS LOW MILES ON IT AND THE TCC SOLENOID AND ANOTHER SOLENOID REGULATING LINE PRESSURE IN THE TRANSMISSION HAS FAILED, REQUIRING REPLACEMENT. *TR
NHTSA ODI #10246147
13,000 miles · Sep 11, 2008
Electrical SystemEquipmentPower Train
TL*THE CONTACT OWNS A 2004 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 15 MPH, ALL OF THE INSTRUMENT PANEL GAUGES STOPPED WORKING. PRIOR TO THE FAILURE, THE HEATER UNIT SHUT OFF WITHOUT WARNING. IN ADDITION, AFTER SEVERAL ATTEMPTS TO START THE VEHICLE, IT FINALLY STARTED AND DROVE ROUGHLY. THE VEHICLE WAS TAKEN TO AN INDEP…
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TL*THE CONTACT OWNS A 2004 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 15 MPH, ALL OF THE INSTRUMENT PANEL GAUGES STOPPED WORKING. PRIOR TO THE FAILURE, THE HEATER UNIT SHUT OFF WITHOUT WARNING. IN ADDITION, AFTER SEVERAL ATTEMPTS TO START THE VEHICLE, IT FINALLY STARTED AND DROVE ROUGHLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC AND IT WAS DISCOVERED THAT THE FAILURES WERE RELATED TO THE SECURITY SYSTEM IN THE CONTROL PANEL. THE VEHICLE WAS REPAIRED FOR THE MALFUNCTIONS. RECENTLY, THE DRIVER MESSAGE CENTER AND HORN WERE NOT OPERATING, AND THE TRANSMISSION WAS NOT RUNNING PROPERLY. THE VEHICLE HAS NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS 13,000 AND CURRENT MILEAGE WAS 27,000.
NHTSA ODI #10241807
5,900 miles · Aug 24, 2008
Electrical SystemPower Train
2004 CHEVROLET IMPALA LS, SPEEDOMETER IS WAY OFF. SOMETIMES SHOWS 60 MPH WHEN PARKED, OR UP TO 160 MPH ON INTERSTATE, WHEN TRAVELING 65 OR 70. NO WAY TO KNOW WHAT ACCURATE SPEED IS, AND COULD BE DANGEROUS. *TR
NHTSA ODI #10239522
87,000 miles · Jul 19, 2008
Power Train
THERE ARE 2 PEOPLE OTHER THAN MYSELF THAT HAVE CHEVROLET IMPALAS. ONE PERSON HAS A 2005 BUT THE OTHER AND MYSELF HAVE THE 2004. ALL THREE ARE HAVING THE SAME PROBLEM YOU WILL BE STOPPED AND START THE GAS PEDAL AND THERE IS A JERK . FEELS LIKE SOME ONE HAS HIT THE BACK OF THE CAR. (TRANSMISSION OR TORQUE CONVERTER.) *TR
NHTSA ODI #10234904
Official recalls
4Oct 26, 2015
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.
Consequence & remedy
Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.
Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engines front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.
Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.
Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engines front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.
Engine And Engine Cooling:engine
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.
Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.
Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engines front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.
Apr 6, 2015
General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2004 Chevrolet Impala vehicles manufactured April 8, 2003, to June 23, 2003, and 2004 Chevrolet Monte Carlo vehicles manufactured April 7, 2003, to June 23, 2003. On May 18, 2015, GM expanded the recall to cover an additional 49,751 2004 Pontiac Grand Prix vehicles manufactured January 6, 2003, to June 25, 2004. In the affected vehicles, the valve cover gasket may leak.
Consequence & remedy
Consequence: The leaking engine oil can drip onto the hot surface of the exhaust manifold, increasing the risk of a fire.
Remedy: GM will notify owners, and dealers will remove the plastic cover and plastic oil fill tube extension and replace the front valve cover and gasket. These repairs will be done free of charge. The recall began on April 24, 2015. Owners may contact Buick customer service at 1-800-521-7300, Pontiac customer service at 1-800-762-2737 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14574.
Jul 3, 2014
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 3, 2014, that they are recalling 5,877,718 model year 2000-2005 Chevrolet Impala and Monte Carlo, 1997-2003 Chevrolet Malibu, 2004-2005 Malibu Classic, 1999-2004 Oldsmobile Alero, 1998-2002 Oldsmobile Intrigue, 1999-2005 Pontiac Grand Am and 2004-2008 Pontiac Grand Prix vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Consequence & remedy
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 9, 2014. GM's number for this recall is 14350.
Jun 23, 2004
CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH LOWER THAN SPECIFIED TORQUE ON BOTH FRONT BRAKE CALIPER TO STEERING KNUCKLE ATTACHMENT BOLTS. WITH IMPROPER TORQUE, THE CLAMP LOAD AT THE JOINT MAY NOT BE ADEQUATE TO PREVENT MOVEMENT BETWEEN THE CALIPER BRACKET AND KNUCKLE.
Consequence & remedy
Consequence: DEPENDING ON WHETHER ONE OR BOTH BOLTS BACKS OUT OR FRACTURES, THE RESULT CAN BE LOCKING OF THE AFFECTED WHEEL DURING BRAKING AND AN ABRUPT STEERING INPUT IN THE DIRECTION OF THE LOCKED WHEEL, REDUCED BRAKING AND NOISE FROM THE AFFECTED WHEEL, OR SEVERING OF A BRAKE HOSE, INCREASED BRAKE PEDAL TRAVEL, AND REDUCED STEERING CONTROL. REDUCED BRAKING OR STEERING CONTROL COULD CAUSE A CRASH.
Remedy: DEALERS ARE TO TIGHTEN BOTH BOLTS TO THE SPECIFIED TORQUE. OWNER NOTIFICATION BEGAN ON JUNE 28, 2004. OWNERS SHOULD CONTACT CHEVROLET 1-800-630-2438 OR PONTIAC 1-800-620-7668.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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