2009 Chevrolet Tahoe
Problems, recalls and owner-reported issues
Air bags is the leading concern among 306 owner complaints filed for this model year. This is the 11th highest complaint count among 26 Tahoe model years with reports.
Of the 2009 reports, 5 involved a crash and 1 involved a fire. 9 people were injured.
What owners report most often
Recalls and investigations
Air bags, frontal, passenger side, inflator moduleFeb 5, 2021
General Motors, LLC (GM) is recalling certain 2013 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." Additionally, GM is recalling certain 2010 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL vehicles originally sold, or ever registered in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." Additionally, GM is recalling certain 2009 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500/3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500/3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming or "Zone C."
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 24, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on May 11, 2021. Owners may contact Cadillac customer service at 1-800-458-8006; Chevrolet customer service at 1-800-222-1020; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328790.
Campaign 21V053000 on NHTSA.gov
Air bags, frontal, passenger side, inflator moduleFeb 5, 2021
General Motors, LLC (GM) is recalling certain 2009 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 1500, Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." Additionally, GM is recalling certain 2007-2008 Cadillac Escalade, Escalade ESV, and Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming or "Zone C." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 23, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on September 20, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-458-8006, and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328780.
Campaign 21V052000 on NHTSA.gov
Air bags, frontal, passenger side, inflator moduleFeb 5, 2021
General Motors, LLC (GM) is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL, and 2009-2011 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500 and Sierra 3500 vehicles originally sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." Additionally, GM is recalling certain 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, Yukon XL vehicles originally sold, or ever registered, in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia or "Zone B." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 22, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed on March 1, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328760.
Campaign 21V050000 on NHTSA.gov
Electrical systemJun 4, 2010
GM IS RECALLING CERTAIN MODEL YEAR 2006-2009 BUICK, LUCERNE; CADILLAC DTS; HUMMER H2; MODEL YEAR 2008-2009 BUICK ENCLAVE; CADILLAC CTS; MODEL YEAR 2007-2009 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE; GMC ACADIA, SIERRA, YUKON, YUKON XL; SATURN OUTLOOK; AND MODEL YEAR 2009 CHEVROLET TRAVERSE VEHICLES EQUIPPED WITH A HEATED WASHER FLUID SYSTEM (HWFS). A RECALL WAS IMPLEMENTED IN 2008 TO ADD A FUSE TO THE CONTROL CIRCUIT HARNESS TO ADDRESS THE POTENTIAL CONSEQUENCES OF A PRINTED CIRCUIT BOARD (PCB) ELECTRICAL SHORT. HOWEVER, THERE HAVE BEEN NEW REPORTS OF THERMAL INCIDENTS ON HWFS MODULES AFTER THIS IMPROVEMENT WAS INSTALLED. THESE INCIDENTS RESULTED FROM A NEW FAILURE MODE ATTRIBUTED TO THE DEVICE'S THERMAL PROTECTION FEATURE. THE SIGNIFICANCE VARIES FROM MINOR DISTORTION TO CONSIDERABLE MELTING OF THE PLASTIC AROUND THE HWFS FLUID CHAMBER.
IT IS POSSIBLE FOR THE HEATED WASHER MODULE TO IGNITE AND A FIRE MAY OCCUR.
DEALERS WILL PERMANENTLY DISABLE AND REMOVE THE HEATED WASHER FLUID MODULE. AN UPDATED PAGE FOR THE OWNER MANUAL WILL BE PROVIDED AND INSERTED IN THE OWNER MANUAL TO DOCUMENT THAT THE FEATURE HAS BEEN PERMANENTLY DISABLED AND REMOVED FROM THE VEHICLE. THE SAFETY RECALL BEGAN ON JUNE 11, 2010. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, SATURN AT 1-800-972-8876, GMC AT 1-866-996-9463 AND HUMMER AT 1-800-732-5493 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Campaign 10V240000 on NHTSA.gov
Fuel system, gasolineMay 6, 2009
GM IS RECALLING 27,188 MY 2009 CADILLAC ESCALADE, ESCALADE HYBRID, ESCALADE ESV, AND ESCALADE EXT; CHEVROLET AVALANCHE, SUBURBAN, TAHOE, TAHOE HYBRID, AND COLORADO; AND GMC YUKON, YUKON HYBRID, YUKON XL, AND CANYON VEHICLES. THE FUEL SYSTEM CONTROL MODULES MAY HAVE A CONDITION IN WHICH AN ADHESIVE SEPARATION OF THE ROOM TEMPERATURE VULCANIZING (RTV) SEAL BETWEEN THE SEAL AND THE HOUSING MAY ALLOW WATER TO SEEP INTO THE MODULE.
WATER IN THE MODULE COULD CAUSE A SHORT OR OPEN CIRCUIT, ILLUMINATION OF THE SERVICE ENGINE SOON LAMP, SETTING OF DIAGNOSTIC TROUBLE CODES OR THE ENGINE MAY BE HARD TO START, MAY NOT START OR MAY STALL INCREASING THE RISK OF A CRASH.
DEALERS WILL INSTALL A NEW FUEL SYSTEM CONTROL MODULE FREE OF CHARGE. THE RECALL BEGAN ON MAY 18, 2009. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438 AND GMC AT 1-866-996-9463 OR AT WWW.GMOWNERCENTER.COM.
Campaign 09V154000 on NHTSA.gov
Representative owner complaints: power train
16 reports, newest first. Show all
Power train, May 14, 2026
The contact owns a 2009 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the contact noticed oil leaking from the vehicle with the transmission warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the JB Weld and the driveshaft had failed, causing the transmission to fail and needed to be replaced. . The vehicle was not repaired. The dealer was contacted;. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was not available. The VIN was not available.
Power train, Electrical system, Nov 10, 2024
P2138 code causing the car to have reduced engine power causing unsafe driving conditions and danger to other traffic. Vehicle has been to dealer multiple times for issue, ECM replaced costing thousands and still not working.
Steering, Power train, Service brakes, May 4, 2022
I purchased the gm sts2 software and program my truck and now I have no brakes, have all lights on with calibration and rams problem I’m sure that the calibration they provided to me, costed this problem and none off the lights are turning off, the truck lost brakes I have to stand on the paddle to stop the truck. Now I have no choice to send it the GM for there mistake. I spoke to acdelco sts2 rep. And he couldn’t figure out the problem. And the hybrid system issue also. Both front air bag impact sensors cracks in the middle turns the light on. That’s been a fault with all gm trucks. They need to update this problem.
Power train, Jun 22, 2021
The contact owns a 2009 Chevrolet Tahoe. The contact stated while driving at various speeds, the vehicle would jerk, accelerate independently and stall. The contact stated that the failures all occurred on different occasions. The contact stated the service engine warning light was illuminated. The contact took the vehicle to an independent mechanic where the auxiliary transmission fluid pump and auxiliary transmission control module were replaced. The vehicle was not diagnosed or repairs as of yet. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 145,000.
Power train, Electrical system, Engine, Apr 23, 2019
GM HAS NOT BEEN ABLE TO FIGURE OUT MY CAR. IT HAS BEEN IN THREE TIMES FOR AN ELTRICAL ISSUE. THE CAR REVS UP AND SPEEDS UP TO 55 MILES PER HOUR ON ITS OWN. HAS NO POWER STEERING. REDUCED ENGINE POWER. THROWING 47 CODES. NO COMMUNICATION BETWEEN TRANSMISSION AND COMPUTER. STABILITY TRACK TURNS OFF. DOORS AND AUTO SHUT OFF TURN OFF AND ON WHEN THIS OCCURS.
Power train, Vehicle speed control, Other or unspecified, Jun 29, 2018, crash
MY 2009 HYBRID TAHOE ACCELERATES UNCONTROLLABLY ON OCCASION. THE ISSUE ARRISES COMMONLY IN STOP-AND-GO TRAFFIC WHEN THE HYBRID SYSTEM STARTS/STOPS THE GASOLINE ENGINE REGULARLY. I NOTICE IN MANY CIRCUMSTANCES WHEN SWITCHING GAS/ELECTRIC MODES THE VEHICLE LURCHES FORWARD. THE FEELING IS THE SAME AS LETTING OUT THE CLUTCH QUICKLY ON A VEHICLE WITH A MANUAL TRANSMISSION. I HAVE DONE AS MUCH RESEARCH AS I CAN AND IT APPEARS THE PROBLEM POINTS TO ISSUES WITH THE TRANSMISSION FLUID PUMP(S) AND/OR CONTROL MODULES. WHEN THE SYSTEM OPERATES ON THE GAS ENGINE, THE HYBRID TAHOE'S TRANSMISSION RELIES ON AN ENGINE DRIVEN HYDRAULIC FLUID PUMP. WHEN THE SYSTEM SWITCHES TO ELECTRIC MODE, AN AUXILIARY TRANSMISSION FLUID PUMP TURNS ON, DRIVEN BY AN INDEPENDENT ELECTRIC MOTOR. THE LURCH I DESCRIBED RESULTS FROM WHAT I BELIEVE TO BE A FAILING PUMP OR CONTROL MODULE, OR A COMBINATION OF THE BOTH WHICH ENGAGES GEARS WHEN IT SHOULDN'T. THIS LURCH IS RATHER DANGEROUS AS I HAVE HAD TO JUMP ON THE BRAKES MANY TIMES TO AVOID REAR ENDING OTHER DRIVERS. I HAVE SPOKEN WITH SEVERAL INDIVIDUALS WHO OWN, DRIVE OR HAVE DRIVEN THESE GMT900 SERIES HYBRIDS (2008-2013 CHEVY TAHOE/SILVERADO HYBRIDS, GMC YUKON HYBRIDS, CADILLAC ESCALADE HYBRIDS) ALL INDIVIDUALS HAVE DESCRIBED THE DREADED LURCH. SOME SAY REPLACING THE ELECTRIC AUXILIARY TRANSMISSION FLUID PUMP SOLVES THE PROBLEM, OTHERS STILL HAVE LURCHING ISSUES. ONE INDIVIDUAL WHO DRIVES A CADILLAC ESCALADE HYBRID CLAIMED TO HAVE ACTUALLY REAR ENDED SOMEONE DUE TO THE UNCONTROLLABLE LURCH. AS FOR MY PERSONAL CAR, THE LURCH OCCURS IN STOP AND GO TRAFFIC AND OCCURS AT LEAST ONCE A WEEK, SOMETIMES MORE. THANKFULLY I HAVE NOT BEEN INVOLVED IN AN ACCIDENT YET, HOWEVER I FEEL ONE MAY BE IMMINENT. HERE IS A LINK TO A TAHOE/YUKON OWNERS FORM WHERE I HAVE SHARED SOME OF MY FINDINGS: HTTPS://WWW.TAHOEYUKONFORUM.COM/THREADS/HYBRID-TRANSMISSION.104102/
Power train, Other or unspecified, Engine, Feb 1, 2017
WARNING LIGHT, TURN OFF THE ENGINE. AND THE VEHICLE TUGGED FORWARD. THIS VEHICLE HAS TURNED OFF ON OCCASION AND HAS HAD OTHER ENGINE WARNING LIGHTS. THE ENGINE WARNING LIGHT, NOW, REMAINS LIT.
Power train, Air bags, Engine, Oct 27, 2016
DRIVE TRAIN VIBRATION SINCE TAKING DEALER DELIVERY NOV/DECEMBER 2015 @ 2830 MILES AIR BAG NOTICE NOT TO RIDE IN FRONT PASSENGER SEAT 10/27/2016 1ST OCCURENCE OF UNINTENDED ACCELERATION OCT 27, 2015 @ 8680 MILES
Power train, Service brakes, Apr 2, 2014
I HAVE HAD TO REPLACE THE BRAKES TWICE, AS WELL AS THE DRIVER SIDE HUB. I HAVE REPLACE THE DOOR TRIM AT LEAST 4 TIMES. EVERYONE I HAVE MET THAT HAS THE SAME YEAR HAS HAD TROUBLE WITH THE TRIM. I ALSO FEEL THAT THE TRANSMISSION HAS TROUBLE SHIFTING WHEN TOWING. *TR
Power train, Engine, Aug 30, 2013
WHEN DECELERATING USING BRAKING AND IN HYBRID MODE THE VEHICEL SURGES AHEAD WHEN THE HYBRID SYSTEM DISENGAGES. THIS CAUSES THE VEHICLE TO ACCELERATE AND PREVENTS STOPPING. HIGH POTENTIAL TO HIT THE VEHICLE IN FRONT OR PERSON IF AT A CROSSWALK. CHEVROLET DEALER IIN AVON CT, WAS UNABLE TO FIND CAUSE WITH TWO VISITS.
Power train, Latches/locks/linkages, Jun 26, 2012
TL* THE CONTACT OWNS A 2009 CHEVROLET TAHOE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR AN UNRELATED REPAIR AND THEY DETECTED THAT THE TRANSMISSION DIPSTICK HAD BROKEN. IN ADDITION, BOTH FRONT PASSENGER AND REAR DRIVER SIDE DOORS WOULD NOT LOCK. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 80,000. THE VIN WAS UNAVAILABLE.
Power train, Jun 12, 2012
2009 CHEVROLET TAHOE. CONSUMER STATES PROBLEM WITH VEHICLE TRANSMISSION *TGW THE CONSUMER STATED THE SIX SPEED TRANSMISSION SHIFTED CONSTANTLY, AND HARD. IT DIDN'T MAINTAIN SPEED WHEN THE CRUISE CONTROL WAS SET. THE DEALER REPLACED SEVERAL MODULES AND SENSORS WITHIN THE TRANSMISSION. *JB
Power train, Electrical system, May 10, 2012
TL* THE CONTACT OWNS A 2009 CHEVROLET TAHOE. THE CONTACT STATED THAT THE VEHICLE EXPERIENCED A FAILURE IN WHICH IT WOULD INTERMITTENTLY RESIST ACCELERATION ACCOMPANIED BY A WARNING CHIME SOUNDING. THE CONTACT ALSO STATED THAT THE DOOR LOCKS WOULD UNEXPECTEDLY LOCK AND UNLOCK. THE FAILURE OCCURRED REGARDLESS OF THE SPEED TRAVELED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS 57,000. UPDATED 07/06/12 *BF ON FOUR OCCASIONS THE DOOR BEGAN LOCKING, UNLOCKING, CHIMING AS IF THE DOORS WERE OPEN. THE WARNING LIGHTS BEGAN FLASHING AND THE VEHICLE WOULD DECELERATE QUICKLY AS IF THE VEHICLE WAS PLACED IN NEUTRAL AND THE ACCELERATOR WAS UNRESPONSIVE. THE DEALER WAS UNABLE TO DIAGNOSE THE PROBLEM. UPDATED 07/17/12
Service brakes, Hydraulic, Engine and engine cooling, Power train, Vehicle speed control, Aug 17, 2011, crash
I HAVE NEVER HAD ANY ISSUES OTHER THAN THE RECALLS WITH MY TAHOE. I PULLED INTO A PARKING SPACE AT MY BANK. AS I GOT INTO THE SPACE. THE BRAKES WENT TO THE FLOOR AND I PUT BOTH FEET ON THE BRAKE PEDAL AT THIS POINT. THE RPMS WENT UP. IT WAS LIKE THE ENGINE CAME TO LIFE BY ITSELF. IT SELF ACCELERATED OVER THE CONCRETE SPACER AND SIDEWALK INTO THE BANK'S BRICK WALL. THE AIRBAG DEPLOYED UPON IMPACT. THERE WAS NEVER A TIME IT DECELERATED. THERE WAS NO ONE IN THE CAR BUT ME THANKFULLY. THERE WERE NO WARNING LIGHTS. THERE WERE NO BELLS WARNING OF THE FAILURE. I WOULD ESTIMATE IT TOOK 2-3 SECONDS TO GO FROM ALMOST STOPPED IN A PARKING SPACE TO HITTING THE BRICK. I AM SO SHAKEN BY THIS INCIDENT AND I HAVE NO IDEA WHAT TO DO. GMC HAS BEEN INFORMED. *KB
Power train, Jul 12, 2011
TL* THE CONTACT OWNS A 2009 CHEVROLET TAHOE. THE CONTACT STATED THAT THE VEHICLE STALLED WITH THE ILLUMINATION OF THE CHECK ENGINE WARNING LIGHT, FOLLOWED BY ABNORMAL ACCELERATION. THE VEHICLE WAS TAKEN TO THE DEALER WHO DIAGNOSED THAT THE FUEL INJECTOR NEEDED TO BE CLEANED YET, THE REMEDY FAILED TO REPAIR THE PROBLEM. THE VEHICLE WAS TAKEN BACK TO DEALER WHO THEN REPLACED THE CONVERTER BUT TO NO AVAIL. THE VEHICLE WAS THEN TAKEN TO A LOCAL REPAIR SHOP FOR A SECOND OPINION WHO DIAGNOSED THAT THE TORQUE CONVERTER AND THE TRANSMISSION WERE DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE AND THE VEHICLE WAS NOT REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 35,000 AND THE CURRENT MILEAGE WAS 40,000.
Power train, Jan 13, 2011
THE VEHICLE IS A 2009 CHEVY TAHOE LTZ. AT ABOUT 9000 MILES THE VEHICLE STARTED TO HAVE PROBLEMS. WHEN YOU FIRST STARTED THE VEHICLE AND DROVE IT AND HAD TO STOP IN THE FIRST 1/2 MILE OR SO, WHEN YOU TRIED TO ACCELERATE THE VEHICLE WOULD JUMP FORWARD AND THEN LOCKUP AND THE ENGINE WOULD DIE. IT DIDN'T MATTER IF IT WAS 30 DEGREES OR 60 DEGREES OUT. IT HAPPENED EVERYTIME THE STOP HAD TO BE DONE. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY SAID THERE WERE NO CODES SO NOTHING COULD BE WRONG, GM WAS CONTACTED AND THE DEALERSHIP CALLED BACK AND HAD ME LEAVE THE TAHOE THERE. THEY WERE TOLD IT ONLY HAPPENED WHEN THE VEHICLE WAS FIRST STARTED OR WHEN IT HAD BEEN SITTING FOR ABOUT 5 HOURS. IT WAS TRIED SHORTLY AFTER I LEFT IT AND THEY CALLED AND SAID NOTHING HAPPENED SO THEY WERE GOING TO LEAVE IT OVERNIGHT AND TRY IT IN THE MORNING. THEY DID AND I GOT A CALL THAT IT ALMOST PUT THE SERVICE PERSON RIDING IN THE PASS SEAT THROUGH THE WINDSHIELD. LONG STORY SHORTENED, IT WAS FOUND THAT THE TRANSMISSION WAS MANUFACTURED WITH OUT ONE OF THE MAIN BEARINGS, THIS WAS THEIR ANSWER TO THE PROBLEM AND AFTER ABOUT THREE WEEKS IT WAS FINALLY REPAIRED AND I GOT IT BACK. GM, CHEVY KNOWS ABOUT THIS AS THEY WERE PART OF THE NOTIFICATION PROCESS AS THEY HAD TO OK ALL REPAIRS ON THE REBUILDING OF THE TRANSMISSION WOULD NOT INSTALL A NEW ONE. DON'T KNOW IF IT WAS A BEARING OR NOT AS THE TAHOE RAN FINE FOR ABOUT 9000 MILES. *TR