Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
PIP-4568K01/01/201110037941Gm: service engine soon light is on with a misfire and a possible tick noise. *rm06/08/2011
PIP-4568K01/01/201110037941Ready06/08/2011
PIP-4138K01/01/201110037933Ready06/08/2011
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
ENGINE AND ENGINE COOLING - COOLING SYSTEM
390810020490Full size utilities with coolant loss, rough running, and misfire. equipped with lmg lyd or lc0 5.3l engines. *kb10/27/2006
ENGINE AND ENGINE COOLING - COOLING SYSTEM - HOSE
08-04-19-00408/01/200810026624Gmc: correct front axle vent hose routing. the front axle vent hose is mounted in the left side of the engine compartment, and may not be correctly routed. *pe11/19/2008
ENGINE AND ENGINE COOLING - ENGINE
PIT-4769B03/01/201110038624Ready06/24/2011
PIT-4769B03/01/201110038624Gm: the air bag light is on with a stored trouble code. *rm06/24/2011
PIP-3783C12/01/201010037809Gm: the engine light is on and the vehicle lacks power. there are multiple possible trouble codes. *rm06/06/2011
PIP-3783C12/01/201010037809Ready06/06/2011
PIP-485111/01/201010037492Gm: there is an intermittent engine light on due to five possible internal trouble codes. there may also be an extended crank after filling the fuel tank. *rm05/24/2011
PIP-485112/01/2010PIP-4851A10037492Gm: there is an intermittent engine light on due to five possible internal trouble codes. there may also be an extended crank after filling the fuel tank. *rm updated 5/31/11. *pe05/24/2011
PIP-485111/01/201010037492Ready05/24/2011
SB-07-06-03-002C07/01/201010036524Cadillac/chevrolet/gmc: information on inspecting top post battery cable bolts, clamps and nuts during pre-delivery inspection (pdi). *pe03/28/2011
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-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
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
SB-10-06-01-00809/01/201010035804Cadillac/chevrolet/gmc/pontiac: engine oil consumption on aluminum block engines with active fuel management (afm) (install afm oil deflector and clean carbon from cylinder). caused by an uncovered afm valve that sprays oil on the bottom o03/04/2011
SB-09-06-01-00605/01/200910030724Gmc/cadillac/chevrolet: check engine light on, engine misfire, hard start, rough idle, hesitation, loss of power, poor performance, noise, dtcs p0300, p0301, p0302,p0303, p0304, p0305, p0306, p0307, p0308 set (replace engine). *pe11/23/2009
PIT-4846A05/06/200910030244Cadillac/chevrolet/gmc: locations of high speed gmlan wiring concerns. gauges inoperative, no crank, harsh transmission shifting, no transmission shifting, door locks cycling and indicators on. *pe09/02/2009
08-06-04-012B11/19/200810026627Gmc: ei08047-intermittent mil/ses, dtc(s) p2120, 02122, 02123, 02125, p2127, p2128, p2138 with reduced engine power (replace accelerator pedal). this may be caused by corrosion at the accelerator pedal connector. *pe11/19/2008
08-06-03-00707/01/200810026007Gmc: no start, no crank, intermittent electrical operations (check for poor connections within engine wiring harness junction block). *pe09/23/2008
08-07-30-02105/01/200810025668Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, u0121, u0140 set (repair backed out terminal in transmission08/28/2008
08-07-30-02104/01/200810025402Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, 70140 (repair backed out terminal in transmission harness co08/06/2008
08-06-04-01203/01/2008080604012A10024742Ei08047 - intermittent mil/ses, dtc's p2120, p2122, p2123, p2125, p2127, p2128, p2138 with reduced engine power. *nj05/15/2008
PIP432102/01/2008PIP4321A10024285Oil leak at rear of engine. equipped with a 4.8, 5.3, 6.0 or 6.2 v8 engine. *nj04/01/2008
PIT428402/01/2008PIT4284A10024282Engine stalls after being remote started. *nj04/01/2008
PIP434402/01/200810024204Short duration cold start lifter tick noise. equipped with the 5.3 or 6.0 active fuel management engines. *nj03/24/2008
391712/01/20073917E10022901Engine has low power on acceleration or when towing. equipped with the 6.0l ly6 and l76 engine. *nj updated 1/29/08. *nj10/03/2007
07060401305/01/200710021841Chuggle, surge or hesitation may be felt with active fuel management system cylinder deactivation transition from v8 mode to v4 mode. *kb06/22/2007
06060301309/01/2007060603013B10021448Intermittent low battery voltage, engine will not crank, engine cranks but will not start, charging system light on, service battery charging system message displayed, dtc b1405 and/or b1516 set. (reprogram bcm). *kb updated 11/0204/27/2007
40404040A10021394Harsh tcc apply or tcc cycling. *kb04/24/2007
06060301101/01/2007060603011A10021118Humming or buzzing from rear of vehicle and/or possible dead battery. (check fuel pump relay and replace, if necessary). *kb03/07/2007
400610021023Whine howl noise from the rear differential on vehicles equipped with an 8.6 rear axle. *kb02/22/2007
39503950C10020968Intermittent service 4 wheel drive lamp on and code c0378. *kb updated 10/03/07. *nj02/02/2007
393910/05/200610020965Transfer case control module investigation. *kb02/02/2007
06060300910/01/200610020948Diagnostic information on battery draw no start - body control module, bcm power timer. *kb02/01/2007
06060200705/01/200610020955Ly2, ly5, ly6, lh6, l76, lmg, lc9, l92, coolant or rubber type odor, loss of engine coolant and/or overheat condition. *kb02/01/2007
06084500709/01/200610020889No start/loss of low speed lan, dtc's set. *kb01/26/2007
06060404209/01/2006060604042A10020880Lr4, ly2, l33, lh6, lm7, l59, lc9, lmg, ly5, ls2, lq9, lq4, l76, ly6 throttle actuator control (tac). module codes, mil/ses dtc's p2108, p1516, u0107, reduced engine power. *kb01/25/2007
ENGINE AND ENGINE COOLING - ENGINE - DIESEL
PIP-4574M08/01/201010036485Buick/chevrolet/gmc/pontiac/saab: excessive oil consumption and/or blue exhaust smoke-investigation update. in most cases did not start until the engine accumulated approximately 30,000 miles or more. *pe03/21/2011
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
PIP-4574M08/01/201010036485Buick/chevrolet/gmc/pontiac/saab: excessive oil consumption and/or blue exhaust smoke-investigation update. in most cases did not start until the engine accumulated approximately 30,000 miles or more. *pe03/21/2011
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
PIP334302/01/2008PIP3343A10024344Possible engine oil leak due to pcv freeze-up, equipped with the 4.8, 5.3, 6.0, and 6.2 v-8 engines. *nj04/07/2008

Investigations


NHTSA IDManufacturerDate openDate closeSubjectRecall campaign
ENGINE AND ENGINE COOLING
EA08010GENERAL MOTORS CORP.06/12/200809/08/2008NON-CRASH ENGINE COMPARTMENT FIRES08V441000
 In a letter dated august 27, 2008, general motors corp. (gm) notified nhtsa that it will conduct a safety recall (nhtsa recall number 08v-441) to address a safety relateddefect that can result in engine compartment fire in approximately 850,000 vehicles equipped with a heated windshield washer fluid option.the subject vehicles of this investigation comprise over three-quarters of the recall population. according to gm, a short circuit on the printed circuit board for the windshield washer fluid heater module may overheat the control-circuit ground wire. this may cause other electrical features to malfunction, create an odor or cause smoke and in rare cases it may cause a fire.as a remedy, gm dealers will install a wire harness with an in-line fuse. in addition to the subject vehicles, several other gm models with the heated windshield washer fluid option are included in recall 08v-441: my 2006-2008 buick lucerne (manufactured august 2005 through november 2007); my 2008 buick enclave (manufactured february 2007 through april 2007); my 2006-2008 cadillac dts (manufactured may 2007 through november 2007); my 2007-2008 saturn outlook (manufactured august 2006 through april 2007); and my 2007-2008 gmc acadia (manufactured august 2006 through april 2007) vehicles.gm is instructing owners to take their vehicle to a dealer for service if they experience symptoms of windshield washer heater module short circuits. gm's recall resolves the safety defect concerns pursued by this investigation.this engineering analysis is closed.
PE08010GENERAL MOTORS CORP.02/04/200806/12/2008NON-CRASH ENGINE COMPARTMENT FIRES
 In response to an information request letter sent by the office of defects investigation(odi) during preliminary evaluation pe08-010, gm provided odi with 41 allegations of non-crash engine compartment fires including 16 allegations of fires originating with the ignition in the off position.one of the fires was determined to be caused by an arson event.odi has also received 5 reports, 4 of which are of duplicative of reports provided by gm, alleging non-crash engine compartment fires in the subject vehicles.in total, odi is aware of 41 non-crashengine compartment fires in the subject vehicles that are unrelated to arson.eight of the 41 fire allegations also allege property damage as a result of the fires.this preliminary evaluation has been upgraded to an engineering analysis (ea08-010) to further assess the scope, frequency, origin and cause of the alleged non-crash related engine compartment fires in the subject vehicles.
ENGINE AND ENGINE COOLING - ENGINE
EA08010GENERAL MOTORS CORP.06/12/200809/08/2008NON-CRASH ENGINE COMPARTMENT FIRES08V441000
 In a letter dated august 27, 2008, general motors corp. (gm) notified nhtsa that it will conduct a safety recall (nhtsa recall number 08v-441) to address a safety relateddefect that can result in engine compartment fire in approximately 850,000 vehicles equipped with a heated windshield washer fluid option.the subject vehicles of this investigation comprise over three-quarters of the recall population. according to gm, a short circuit on the printed circuit board for the windshield washer fluid heater module may overheat the control-circuit ground wire. this may cause other electrical features to malfunction, create an odor or cause smoke and in rare cases it may cause a fire.as a remedy, gm dealers will install a wire harness with an in-line fuse. in addition to the subject vehicles, several other gm models with the heated windshield washer fluid option are included in recall 08v-441: my 2006-2008 buick lucerne (manufactured august 2005 through november 2007); my 2008 buick enclave (manufactured february 2007 through april 2007); my 2006-2008 cadillac dts (manufactured may 2007 through november 2007); my 2007-2008 saturn outlook (manufactured august 2006 through april 2007); and my 2007-2008 gmc acadia (manufactured august 2006 through april 2007) vehicles.gm is instructing owners to take their vehicle to a dealer for service if they experience symptoms of windshield washer heater module short circuits. gm's recall resolves the safety defect concerns pursued by this investigation.this engineering analysis is closed.
PE08010GENERAL MOTORS CORP.02/04/200806/12/2008NON-CRASH ENGINE COMPARTMENT FIRES
 In response to an information request letter sent by the office of defects investigation(odi) during preliminary evaluation pe08-010, gm provided odi with 41 allegations of non-crash engine compartment fires including 16 allegations of fires originating with the ignition in the off position.one of the fires was determined to be caused by an arson event.odi has also received 5 reports, 4 of which are of duplicative of reports provided by gm, alleging non-crash engine compartment fires in the subject vehicles.in total, odi is aware of 41 non-crashengine compartment fires in the subject vehicles that are unrelated to arson.eight of the 41 fire allegations also allege property damage as a result of the fires.this preliminary evaluation has been upgraded to an engineering analysis (ea08-010) to further assess the scope, frequency, origin and cause of the alleged non-crash related engine compartment fires in the subject vehicles.

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
02/19/2013901561
 While driving 72 mph on highway stabilitrak light, traction control light and flashing engine light came on and engine bogged down with no power. after almost getting hit by 2 semis i got the truck off the road.. i have read up on this issue and chevy needs a recall on this.. someone is gonna get killed. *tr
04/14/200935000
 Tl- the contact owns a 2007 chevrolet tahoe. the contact stated that the check engine warning light illuminated and the vehicle was started to mis-fire. the contact took the vehicle to the dealer and was told that the piston rings were fracturing and needed to be replaced. the dealer advised the contact that replacing the piston rings would not correct the failure and that the engine would require replacement. the dealer stated they would not rebuild the engine even though just replacing the rings will not correct the problem. in addition, the contact stated that the vehicle was consuming excessive oil for a period of three years. the vehicle was scheduled for repairs. the vin was not available. the failure mileage was 35,000 and the current mileage was 80,000. kmj
04/14/200935000
 Tl- the contact owns a 2007 chevrolet tahoe. the contact stated the check engine light illuminated on the instrument panel and the vehicle was skipping when being driven and mis-firing. the contact took the vehicle to the dealer and was told the rings were cracking and needed to be replaced. the dealer stated they will not rebuild the engine even though just replacing the rings will not correct the problem. the contact stated the vehicle had been burning oil for three years. the vehicle was being repaired. the vin was not available. the failure mileage was 35,000 and the current mileage was 80,000.rl
03/01/201217
 2007 chevrolet tahoe. consumer states several issues with vehicle and request information on recalls, service bulletins, warranties or lemon law *tgw the consumer stated the cruise control down shifted to 2nd while driving at highway speeds and on hills, the starter would hang, there was a noise coming from the ac compressor. the transmission was replaced. however, it continued to hesitate after the vehicle was started, as well as a vibration. there was a clicking noise coming from the differential, the idle needle would rise, while at a stop, the battery drained, the engine stalled, the dash was cracked, there was a problem with the suspension, the tire pressure monitoring system was repaired three times, the passenger side mirror was inoperable, the weather strip had come off the vehicle and there was a clicking noise coming from the u-joint. *jb
06/01/201152000
 Excessive oil consumption
02/20/200830001
 We have had several problems with this vehicle. we've had tires replaced twice, rotors, and brakes resurfaced, and rear-end dropped so the springs could be adjusted. but the biggest problem has been with the roaring in the motor. the dealership has had the vehicle for more than 20 days on and off looking for this noise. i've had it to them 8 times or so trying to find it. the noise didn't start until around 3,000 miles, and gets worse and easier to duplicate with more miles. the first 7 visits they said they didn't know what it was and was clueless to it, but the last visit, and 4 days of it, they and gm decided it was a characteristic of the vehicle, and nothing could be done. on the otherhand, one mechanic says it's coming from the drivetrain, but others say it's an improper balance in the motor. either way i'm paying too much money for whatever it is! *tr
06/10/2008288081
 Our 2007 chevrolet tahoe will not start. there have been four occasions where my family and i were getting ready to take a trip and when my husband went to turn the car on it would not start. we have had the vehicle jump started twice and have taken the car to antwerpen chevrolet twice and each time we were told that there was no real problem. it happened again an no one seems to know what the problem is, this has become a big problem for my family and unfortunately we can't seem to get any help from anyone. *tr
10/12/200710948312/02/2006
 Tl*the contact owns a 2007 chevrolet tahoe. on january 12, 2007, the check engine light illuminated intermittently. the vehicle was taken to the dealer and they reinstalled the cam shaft clip into the harness, and replaced the cam shaft position sensor. on november 21, 2007, the vehicle was taken back to the dealer because the engine light illuminated again. the cam shaft sensor was replaced again. on january 29, 2008, the engine light illuminated again and the vehicle was difficult to start. in addition, the auto start remote would not work. the dealer replaced the cam sensor again. since the last replacement, the engine light has not illuminated again. the current mileage was 16,000 and failure mileage was 10,948.
12/31/200712000102/22/2007
 I own a new 2007 chevy tahoe that i purchased on 2/22/07 for $49k. on dec 31st, 2007 i came home from work at 3pm and parked my car in our attached garage (car obviously turned off). at 3:45pm my wife started to smell smoke -- upon entering the garage i noticed that the car was smoking (fire dept thinks its electrical in nature - definitely smelled like it was). i have not had a problem at all with this car and kept up with all maintenance only using the gm dealership for work. we immediately called the fire dept -- when the police and fire made it to the scene the engine burst into flames. my one year old son was sleeping in his room right above the garage. there are a lot of what ifs that go through your head if we had not smelled the smoke and the car blew up. not even taking into account that there was another car right next to the tahoe which was full of gas. gm has given me the run around and does not feel that my car deserves to be replaced. they are very happy letting my insurance pay for the damage to my house and letting me suffer a $16k loss out of pocket for this incident. i am currently pursuing legal avenues and am in the process of looking at the lemon law that massachusetts has on the books. *tr
11/30/200610605803/17/2006
 We took our vehicle to the dealer for a 3rd time now (look for my other complaint on this website on electrical problems/windshield problems) for the same problem plus a number of multiple other problems. the problem that the dealer can't seem to remedy is the windshield wipers and wiper spray keep coming on all by themselves and cannot be turned off unless you turn the vehicle off and then restart it. they've replaced the windshield wiper module but they still come on randomly. the heated seats sometimes don't work and in order to get them to work you must restart the car. the front passenger window will randomly not roll up or down from the drivers side master switch and will only start working after restarting the vehicle. when i took my car to get serviced (oil change) the mechanic noticed several leaks under the vehicle, one coming from the engine bell housing another from the rack and pinion area and the third from the power steering pump housing area. when we took it to the dealer they cleaned the engine pan (i have before pictures) and added an engine dye and they stated they found no leaks, we'll check it again after a few hundred miles. they also cleaned up the other leaks from the other areas and claimed no leaks. our mechanic also noticed while rotating the tires that the front right rotors were deeply grooved which answers my question as to why my brakes have been squeaking. he says that with only 10,000 miles it is not normal for them to be grooved, and is definitely a defect with the calipers probably sticking. showed the dealer and the service writer stated it was normal, that cannot be normal. so now they resurfaced the rotor and the brakes are still squeaking. after bringing my vehicle home from the dealer for repairs the car locked itself i did not lock it, the car keys were not even in my hands anymore they were hanging on the key rack. there are definitely some major electrical problems and mechanical problems with this vehicle. *jb
09/09/2006208/05/2006
 My 2007 chevrolet tahoe that i have had for only 1 month 3 weeks the engine shut down and went into a theft code and on star could not fine the problem. the next time this happen i was driving my truck and the motor shut down and went into a theft code lucky no one was behind me. this happen 9/9/06& 9/28/06. *jb
06/05/20061964305/20/2006
 Reference: near death experiences while driving our brand new (2 week old, chevrolet tahoe ) my family and i have experienced 3 near death situations on two major interstates while driving the two week old 2007 tahoe that i purchased on may 20. i will explain the dangerous experiences we were subjected to in chevrolet tahoe. the chevrolet tahoe i just purchased 2 weeks ago has stalled on three occasions, while i was driving at 65-70 mph, on a busy interstate. when the incidents occurred there were many motorist on the interstate (at night and during the day) we went to two dealers and spoke with on star four times. the repairs were supposed to be completed but each time the suv stalled on the interstate causing a possibly fatal incident for my family and other motorist. the 2007 tahoe that i have been sold is clearly dangerous and defective. now it's friday, june 9, 2006, and i have a brand new 2007 tahoe that is truly malfunctioning; my family needs safe and reliable transportation. *jb *nm
ENGINE AND ENGINE COOLING - COOLING SYSTEM - RADIATOR ASSEMBLY
01/22/20072000211/17/2006
 Tl*- the contact stated that while driving the 2007 chevrolet tahoe at 65 mph the vehicle began to overheat and slowed down to 25 mph. the vehicle had to be driven slowly for 20 miles off the road to safety, before being towed. there was a large hole in the generator, and the radiator had to be replaced. *ak
ENGINE AND ENGINE COOLING - ENGINE
05/01/2011130000
 Tl-the contact owns a 2007 chevrolet tahoe. the contact stated while driving at various speeds her engine was a v-8 and should switch to a v-4 when she reaches to higher speeds to save on gas. the vehicle was inspected by a dealer and they advised her that the engine got stuck in v-8 and caused a misfire. the vehicle was repaired for 8 lifters, the manifold, and all the gaskets surrounding them. the failure mileage was approximately 130,000. tb
09/16/200948000
 2007 chevy tahoe using 2.5 qts oil every 1500 miles. 5.3l v-8. oil consumption test done. on to the dealer for the next step.
06/08/20089000106/01/2007
 Tl*the contact owns a 2007 chevrolet tahoe. the vehicle had not been driven for 10 hours when a fire started under the hood and caused the front tire to explode. the entire front of the vehicle melted on the ground. the vehicle was approximately a foot from the house and as high as the two story house. after hearing the explosion, the contacts husband used a garden hose to keep the flames away from the house. an additional vehicle that belongs to the contact was damaged by the fire. there was also property damage to the siding and bricks on the house. the fire department extinguished the fire, filed a report, and stated that the cause was an electrical short. the insurance company towed the vehicle to general motors to conduct an investigation. there were no injuries. the failure and current mileages were 9000.update 09/10/08 *cw updated 09/17/08. *jb
02/27/200813000109/05/2007
 Tl*the contact owns a 2007 chevrolet tahoe. the contact stated that he noticed smoke coming from underneath the hood of the vehicle approximately an hour after he parked. the fire department stated that the cause of the fire could have been electrical. in addition, they disconnected the battery. as of february 27, 2008, the dealer had not inspected the vehicle. there is a defect investigation open for the engine and engine cooling: engine (nhtsa action number pe08010). the current and failure mileages were 13,000.
06/01/200620005005/25/2006
 After only one month of purchase auto start feature does not work unless you were 3 feet away. the vehicle once sat over night would make a really loud clattering sound when you would turn on the engine. i took the car into the dealer and told them about the problems the dealer indicated that they had to reprogram the software in the tahoe to reprogram auto start. the next morning i was called and informed that they were unable to reproduce the clattering sound and that nothing wrong was detected with the vehicle so that it was ready for pick up. everything was o.k. for about a couple of months. auto start wasn't working again. at my third service visit to the dealer i noticed the tires were starting to get wasted towards the inside. the vehicle only had about 5,000 miles on it at the time. when the dealer was informed he indicated that the tires needed to be rotated. after about three tire rotations i noticed the tires getting warn out pretty badly on the inside. he indicated that the problem could be that it needs a front end allingnment only after the vehicle having less than 12,000 miles. the front end alignment was done on the vehicle.to this day that the tires are wasted more on the insides than the outsides.this last month we have had a problem again with the loud clattering sound in the engine when we start the vehicle.it has gotten alot worse i took it into the dealer and they said that they were aware of the problem and that it appears to be oil build up in the air compressor that when it sits for more thatn 3 hours it apparently makes this loud sound when you start the engine. he indicated that chevy is looking into the problem and to this day has not done anything about the problem.i was furious when they refused to do anything about a problem that chevy well knows is a manufacturer defect. *tr