Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
PIP-4568K01/01/201110037941Ready06/08/2011
PIP-4568K01/01/201110037941Gm: service engine soon light is on with a misfire and a possible tick noise. *rm06/08/2011
PIP-4138K01/01/201110037933Gm: the service engine soon light is on, there is also a misfire or engine noise. there are multiple possible causes. *rm06/08/2011
PIP-4138K01/01/201110037933Ready06/08/2011
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
09-06-03-007A02/02/201210043844Gm: malfunction indicator lamp (mil) illuminated, dtc p0480 and/or p0481 set- temperature gauge indicates hot_ cooling fans intermittent or inoperative (install revised cooling fan relay and harness assembly). *js04/30/2012
SB-09-06-03-00709/01/200910032459Chevrolet: malfunction indicator lamp (mil) illuminated, dtc p0480 and/or p0481 set-temperature gauge indicates hot-cooling fans intermittent or inoperative (install revised cooling fan relay and harness assembly). *pe03/26/2010
ENGINE AND ENGINE COOLING - ENGINE
PIP-4492P08/01/201010036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe03/16/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/03/16/2011
PIP-4814A08/01/201010036384Buick/chevrolet/pontiac: excessive oil consumption and/or blue exhaust smoke. its more apparent when driving highway speed. rare instances, a ses light and engine misfire may be encountered with a p0300 dtc. *pe03/14/2011
PIT-502809/01/201010036324Pontiac/saturn/buick/gmc/chevrolet/cadillac/hummer: vehicle start and stalls after theft deterrent module replacement. model years 2006-2011. does not apply to vehicles with keyless access system. *pe03/14/2011
PIC-533803/01/201010034426Chevrolet: ses light on and/or reduced engine power ecm setting multiple dtc's. prior to replacing either the app (accelerator pedal position) sensor or the ecm (engine control module) please check these common causes of concern-check ter11/15/2010
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CRANKCASE (PCV)
PIP-4492P08/01/201010036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe03/16/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/03/16/2011

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE
10/06/201288680
 As i was driving on the interstate all of a sudden i feel the vehicle slow down and the message center displays traction control off engine power reduced. i was traveling about 65mph at the time however to maintain that speed after this happened i had to press the gas pedal further. the stabilitrac light stayed on for a days also.
02/12/201383434
 I have a 2009 chevy impala lt & was driving aproximately 50mph down the road when all of a sudden the service traction control message came on, the check engine light came on & engine power will be reduced message came on. the cars speed dropped down to about 40mph & would hardly go. i didn't know what was going on. it really scared me because i thought my car was going to cut off. i did get to work safely but i am terrified to drive this car. i searched message boards on the internet & came across 297 messages from other people who own gm vehicles that this has happened to. a couple of people said their cars actually cut off on them while going down the highway at a high rate of speed. one was involved in an accident. the problem from what i have read has something to do with the accelerator pedal position sensor or throttle body. from what i have read gm knows about this problem but has not done a recall on this. a couple of people posted that their local chevy dealership covered the repair even though their cars were no longer under warranty. i called my local chevy dealership and they told me that they couldn't do anything about it. they said that i would have to pay for repairs myself. to me, this is unacceptable. i could have a wreck & get killed or kill someone else. i don't understand why a company would clearly know about a problem with their vehicles and do nothing about it. i think that gm should cover the repairs to my vehicle and to any others that are having this problem.
07/01/2012400001
 I have a 2009 chevrolet impala that i purchased in 2010. several months later, the car began to read check engine, service traction control, reduced engine power, then stalls and jerks while i'm driving. it happens intermittently. i took it to autozone to have them check the computer code. they said it was the accelerator pedal position sensor. the car only has about 50,000 miles on it. i am planning o taking it to the dealership because it is happening more often and i am afraid that i will have an accident as a result of this problem. *tr
12/07/201280000
 Tl-the contact owns a 2009 chevrolet impala. the contact was driving approximately 60 mph when the engine stalled with the illumination of the check engine and traction control warning indicators. the contact restarted the vehicle and it resumed as normal. the failure recurred three times. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the defect. the approximate failure mileage was 80,000. kmj
07/01/201240000
 I have a 2009 chevrolet impala that i purchased in 2010. several months later, the car began to read check engine, service traction control, reduced engine power, then stalls and jerks while i'm driving. it happens intermittently. i took it to autozone to have them check the computer code. they said it was the accelerator pedal position sensor. the car only has about 50,000 miles on it. i am planning o taking it to the dealership because it is happening more often and i am afraid that i will have an accident as a result of this problem.
12/07/201280000
 Tl-the contact owns a 2009 chevrolet impala. the contact was driving approximately 60 mph when the engine stalled with the illumination of the check engine and traction control warning indicators. the contact restarted the vehicle and it resumed as normal. the failure recurred three times. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the defect. the approximate failure mileage was 80,000. kmj
07/01/201240000
 I have a 2009 chevrolet impala that i purchased in 2010. several months later, the car began to read check engine, service traction control, reduced engine power, then stalls and jerks while i'm driving. it happens intermittently. i took it to autozone to have them check the computer code. they said it was the accelerator pedal position sensor. the car only has about 50,000 miles on it. i am planning o taking it to the dealership because it is happening more often and i am afraid that i will have an accident as a result of this problem.
12/07/201280000
 Tl-the contact owns a 2009 chevrolet impala. the contact was driving approximately 60 mph when the engine stalled with the illumination of the check engine and traction control warning indicators. the contact restarted the vehicle and it resumed as normal. the failure recurred three times. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the defect. the approximate failure mileage was 80,000. kmj
07/01/201240000
 I have a 2009 chevrolet impala that i purchased in 2010. several months later, the car began to read check engine, service traction control, reduced engine power, then stalls and jerks while i'm driving. it happens intermittently. i took it to autozone to have them check the computer code. they said it was the accelerator pedal position sensor. the car only has about 50,000 miles on it. i am planning o taking it to the dealership because it is happening more often and i am afraid that i will have an accident as a result of this problem.
12/07/201280000
 Tl-the contact owns a 2009 chevrolet impala. while driving approximately 60 mph, the engine stalled with the illumination of the engine and traction control warning indicators. upon restarting the vehicle resumed as normal. the failure occurred three times. the vehicle had not been diagnosed or repaired. the manufacturer was not notified of the defect. the approximate failure mileage was 80,000. js
09/19/2012279601
 Purchased vehicle on 9/6/2012 used with 27,479 miles. on 9/19/2012 with 27,960 miles, i was accelerating on an onramp getting on a highway and two messages appeared on my dash: reduced engine power and service traction control as well as the check engine light. experience rough and hesitant shifting between gears and could not go faster than 35mph. was able to safely navigate home on side roads. i took it to the dealer i purchased it from for service and was told it was reading code p2138 and the throttle pedal assembly needed to be replaced. the service was covered under the dealer's warranty and i was set to go. flash forward to 10/24/2012 with 29,355 miles, i was driving on a side road and the same messages came up. i called on star and they performed a diagnostic which resulted in the computer reading codes p2138 and c0242. experienced out of control wheel spinning and sensitive braking. took it to a dealer in the area i was currently in traveling for business and they could not diagnose with any issue. all codes and lights were not engaged. i still did not feel safe driving my vehicle due to problem with accelerator and had towed to the purchasing dealer near my home. they also could not diagnose with any issue as they could not duplicate the error. this is a serious safety concern and a problem (especially on the highway) with a popular model. i have also filed a complaint with gm on this issue and am hoping to have it resolved immediately. *tr
09/19/201227960
 Purchased vehicle on 9/6/2012 used with 27,479 miles. on 9/19/2012 with 27,960 miles, i was accelerating on an onramp getting on a highway and two messages appeared on my dash: reduced engine power and service traction control as well as the check engine light. experience rough and hesitant shifting between gears and could not go faster than 35mph. was able to safely navigate home on side roads. i took it to the dealer i purchased it from for service and was told it was reading code p2138 and the throttle pedal assembly needed to be replaced. the service was covered under the dealer's warranty and i was set to go. flash forward to 10/24/2012 with 29,355 miles, i was driving on a side road and the same messages came up. i called on star and they performed a diagnostic which resulted in the computer reading codes p2138 and c0242. experienced out of control wheel spinning and sensitive braking. took it to a dealer in the area i was currently in traveling for business and they could not diagnose with any issue. all codes and lights were not engaged. i still did not feel safe driving my vehicle due to problem with accelerator and had towed to the purchasing dealer near my home. they also could not diagnose with any issue as they could not duplicate the error. this is a serious safety concern and a problem (especially on the highway) with a popular model. i have also filed a complaint with gm on this issue and am hoping to have it resolved immediately.
10/01/20121700001
 While traveling on the expressway a check traction system warning appeared along with reduced engine power. after approx. 10 miles the engine shut down and i was forced to pull off to the side of the road. i shut the engine off and attempted to restart and the starter would not engage. after waiting approx. 3 minutes i was able to start the car and warning system was gone however the check engine light remained. *tr
10/01/2012170000
 While traveling on the expressway a check traction system warning appeared along with reduced engine power. after approx. 10 miles the engine shut down and i was forced to pull off to the side of the road. i shut the engine off and attempted to restart and the starter would not engage. after waiting approx. 3 minutes i was able to start the car and warning system was gone however the check engine light remained.
09/24/2012873001
 As i was driving to golf on monday september 24th, on interstate i-80 heading west, my 2009 chevy impala onboard computer stated the following, service traction control, reduced power, starter disabled and the check engine light all at roughly the same time. my car completely died and i had no power steering. luckily i was able to coast out of harms way and get to the side of the road. i checked some wires under the hood and didn't find anything loose. when i attempted to start the car back-up, the onboard computer flashed, starter disabled. i sat with the car for about 15 minutes and tried once more. this time it started and ran normal, but the check engine like was on(still is). how scary is this really? enough to make me hate driving this car anywhere. not to mention i'm a single dad of 4, who needs to get to work, school and many other things. *tr
09/24/201287300
 As i was driving to golf on monday september 24th, on interstate i-80 heading west, my 2009 chevy impala onboard computer stated the following, service traction control, reduced power, starter disabled and the check engine light all at roughly the same time. my car completely died and i had no power steering. luckily i was able to coast out of harms way and get to the side of the road. i checked some wires under the hood and didn't find anything loose. when i attempted to start the car back-up, the onboard computer flashed, starter disabled. i sat with the car for about 15 minutes and tried once more. this time it started and ran normal, but the check enigine like was on(still is). how scary is this really? enough to make me hate driving this car anywhere. not to mention i'm a single dad of 4, who needs to get to work, school and many other things.
09/22/2012400001
 While traveling on i-95 at about 75mph, the following message appeared on the dash, repair traction control system... engine power is reducing. thankfully, i was approaching a rest area, so i safely coasted to a secure area. after escaping a potentially fatal accident, i researched this traction control message, only to discover innumerable customers had the same problem. this issue should be investigated since it is a universal problem, one that is endangering the lives of gm and other drivers on the highway. *tr
09/22/201240000
 While traveling on i-95 at about 75mph, the following message appeared on the dash, repair traction control system... engine power is reducing. thankfully, i was approaching a rest area, so i safely coasted to a secure area. after escaping a potentially fatal accident, i researched this traction control message, only to discover innumerable customers had the same problem. this issue should be investigated since it is a universal problem, one that is endangering the lives of gm and other drivers on the highway.
11/07/201169001
 I was driving to work on the freeway then i noticed that my car's rpm started bouncing up and down from two and a half to two and back and forth and then my check engine light turns on and says engine power is reduced and as well as the service traction light turns on. i see that i have to press on the gas pedal a lot more further down for my car to stay at 60 mph and after 2 minutes of this my car's rpm drops to 0. my car turns off with the car reading starter disabled and service throttle. i had to pull to the shoulder. this incident had made me late for work and this incident happens a lot now. this can happen from once every two or three weeks to twice a week. just recently my car's seat belts will become undone without anyone clicking the button for it to release. also recently my service airbags light has came on. *tr
11/07/20116900
 I was driving to work on the freeway then i noticed that my car's rpm started bouncing up and down from from two and a half to two and back and forth and then my check engine light turns on and says engine power is reduced and as well as the service traction light turns on. i see that i have to press on the gas pedal a lot more further down for my car to stay at 60 mph and after 2 minutes of this my car's rpm drops to 0. my car turns off with the car reading starter disabled and service throttle. i had to pull to the shoulder. this incident had made me late for work and this incident happens a lot now. this can happen from once every two or three weeks to twice a week. just recently my car's seat belts will become undone without anyone clicking the button for it to release. also recently my service airbags light has came on.
06/23/201248800
 After braking to make a turn, the following warnings came on: reduced engine power, service stabilatrak, and traction control off. plus the engine warning light came on. fortunately no accident occured from this and i did experiance reduction in engine power. these warnings remained on from the onset until this morning, 06/25/12, when i checked it again. now the warnings are not there. i started the car and moved it to see if they would come back on and so far, nothing. i have read that there have been numerous complaints of this problem with gm vehicles particulary this model. i want to add our vehicle to the complaint list due to the uncertainty of dependability of the car and the potential for serious problem and potential for accident.. i hope that with enough complaints, a recall will be issued by gm.
ENGINE AND ENGINE COOLING
03/23/2012
 Trs/engine reduce power will display. car has stopped while driving over 75 mph on highway. while viewing web page edmund.com it appears this problem has occurred on over a dozen chevy implas. does not appear to an isolated incident. gm need to recall the cars,before someone is injured or killed.
04/27/2012502321
 I-40 east bound; 60 mph; coming down a 4 to 7% grade through the smokey mountains, north carolina side; 1st error: service traction control, reduced engine power, service engine. approximately 5 minutes later 2nd error: starting disable,service throttle lost all power to vehicle. a very dangerous and frightening event having no control of your speed, steering, and braking trying to get off to the side of i-40 with the type of grade, tractor trailer trucks that can not slow down fast enough to let you over. we were very.... very fortunate with our outcome. had to be towed to a local dealership. ran diagnostic; error codes p2122, p2138. dealership replaced the component: electronic accelerator pedal
05/01/201278000
 Tl-the contact owns a 2009 chevrolet impala. the contact stated that while driving 60 mph, the vehicle stalled without warning. the vehicle was merged to the shoulder where the contact turned the engine off and restarted, but the engine did not reset. the vehicle was towed to the dealer where they attempted to duplicate the failure to no avail. the manufacturer was notified who told the contact to take the vehicle to the dealer for inspection. the vehicle was not repaired. the failure mileage was 78,000. kmj
04/27/2012502321
 I-40 east bound; 60 mph; coming down a 4 to 7% grade through the smokey mountains, north carolina side; 1st error: service traction control, reduced engine power, service engine. approximately 5 minutes later 2nd error: starting disable,service throttle lost all power to vehicle. a very dangerous and frightening event having no control of your speed, steering, and braking trying to get off to the side of i-40 with the type of grade, tractor trailer trucks that can not slow down fast enough to let you over. we were very.... very fortunate with our outcome. had to be towed to a local dealership. ran diagnostic; error codes p2122, p2138. dealership replaced the component: electronic accelerator pedal
05/01/201278000
 Tl-the contact owns a 2009 chevrolet impala. the contact stated that while driving 60 mph, the vehicle stalled without warning. the vehicle was merged to the shoulder where the contact turned the engine off and restarted, but the engine did not reset. the vehicle was towed to the dealer where they attempted to duplicate the failure to no avail. the manufacturer was notified who told the contact to take the vehicle to the dealer for inspection. the vehicle was not repaired. the failure mileage was 78,000. kmj
04/27/2012502321
 I-40 east bound; 60 mph; coming down a 4 to 7% grade through the smokey mountains, north carolina side; 1st error: service traction control, reduced engine power, service engine. approximately 5 minutes later 2nd error: starting disable,service throttle lost all power to vehicle. a very dangerous and frightening event having no control of your speed, steering, and braking trying to get off to the side of i-40 with the type of grade, tractor trailer trucks that can not slow down fast enough to let you over. we were very.... very fortunate with our outcome. had to be towed to a local dealership. ran diagnostic; error codes p2122, p2138. dealership replaced the component: electronic accelerator pedal
05/01/201278000
 Tl-the contact owns a 2009 chevrolet impala. the contact stated that while driving 60 mph, the vehicle stalled without warning. the vehicle was merged to the shoulder where the contact turned the engine off and restarted, but the engine did not reset. the vehicle was towed to the dealer where they attempted to duplicate the failure to no avail. the manufacturer was notified who told the contact to take the vehicle to the dealer for inspection. the vehicle was not repaired. the failure mileage was 78,000. kmj
05/01/201278000
 Tl-the contact owns a 2009 chevrolet impala. the contact stated while driving 60 mph the vehicle stalled. there was no warning light illuminating. the vehicle was merged on to the shoulders the contact turned the engine off and on but the engine did not reset itself. the vehicle was towed to the dealer who stated they cannot duplicate the failure for the past two days. the manufacturer was notified who told the contact to take the vehicle to the dealer for inspection. they offered no other assistance. the failure mileage was 78,000. mw
02/24/201267000
 Tl-the contact owns a 2009 chevrolet impala. the contact stated that while driving 65 mph, the vehicle stalled. the traction control, engine and the throttle warning lights illuminated before the failure. the contact was able to turn the vehicle engine off for a moment and once restarted, the vehicle returned to normal function. the manufacturer was made aware of the failure and advised the contact to have the dealer performed a diagnostic. the vehicle was not repaired. the approximate failure and current mileage was 67,000. kmj
02/24/201265000
 Tl-the contact owns a 2009 chevrolet impala. the contact stated while driving at 65mph the vehicle stalled. the traction control, the engine, and the throttle warning light illuminated, before the failure occurred. the contact was able to move the vehicle unto the road shoulder, and turned the vehicle engine off for a moment. the vehicle returned to normal function. the vehicle was driven home. the manufacturer was made aware of the failure, and advised to have the dealership performed a diagnostic. the vehicle was not repaired. the approximate failure and the current mileage was 67,000. li
08/01/201160000
 While traveling down the highway at a speed of 40 the engine came to a stalled. i was force to pull over and wait for 15 minutes or more. the check engine light appeared alone with traction control. took into dealer and unable to diagnose the problem. this is an ongoing problem as of today october 15, 2011. also within the first six months of purchasing the vehicle the check engine light appeared because the dealer charge me 185.00 to remove the light.
06/28/20102
 2009 chevrolet impala. consumer states extreme vibration, severe steering difficulties and brake unresponsiveness *tgw the consumer stated the brakes were frozen in one position . the dealer machined the front rotors and sanded the pads. the engine shut down and the consumer had to drive in 3rd gear. *jb
ENGINE AND ENGINE COOLING - ENGINE
05/07/20095000
 Tl*the contact owns a 2009 chevrolet impala. the contact attempted to start the vehicle at least three times, but was unsuccessful. he noticed smoke coming from under the hood. he opened the hood and found flames in the engine compartment. the fire department arrived and extinguished the fire. the vehicle was destroyed and towed to the dealer. there were no injuries. the chevrolet manufacturer stated that they needed to investigate the fire. a police report was filed. the vin was unknown. the failure mileage was 5,000.