Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
VEHICLE SPEED CONTROL
0147001/01/200401470A10004413Erratic idle, idle surge, rough run, or near stall. *tt12/05/2003
VEHICLE SPEED CONTROL - CRUISE CONTROL
307301/01/200410009593Downhill cruise control surge. *tt10/08/2004

Investigations


NHTSA IDManufacturerDate openDate closeSubjectRecall campaign
VEHICLE SPEED CONTROL - LINKAGES
EA02015GENERAL MOTORS CORP.08/01/200201/12/2004THROTTLE STICKING CLOSED
 This investigation involves the general motors corporation (gm)throttle body (tb) utilized in model year (my) 1999-2002 silverado, sierra, tahoe, suburban, avalanche and yukon (subject vehicle(s)) with 4.8l, 5.3l, and 6.0l engines. the tb valve may intermittently stick in a closed position.in such a situation, an operator may apply additional accelerator pedal force to increase engine speed.the application of additional accelerator pedal force, to open a stuck throttle valve, may open the throttle valve more than intended and, in turn, accelerate the engine and vehicle more than intended and reasonably expected by the driver.on august 1, 2002, the office of defects investigation (odi), of the national highway traffic safety administration (nhtsa), opened this engineering analysis.the investigation revealed that two factors may cause the defect: 1) tb manufacturing process problems; and 2) accumulation of deposits (a pcv system by-product) on or around the tb throttle valve and bore.odi concludes that the tb performs in a defective manner after analyzing gm

Consumer Complaints


Fail datemilesoccurencesPurchase date
VEHICLE SPEED CONTROL
05/15/200889100
 When applying the brakes at low speeds the abs kicks in making the vehicle shutter to a stop which makes the vehicle unable to stop right away.
12/12/200225000106/15/2001
 Dt: the vehicle speed control failed. when starting vehicle had to apply additional pressure on the accelator, it seemed to be stuck. this only happened when putting the vehicle in park or reverse. this started happening on december 12, 2005. dealer did look at vehicle but they were going to charge consumer for repairs. is an nhtsa action investigation ea02015 dealt with the same problem. *ak
01/10/20031
 Consumer stated while driving, the gas pedal sticks intermittently then the vehicle experienced sudden acceleration. dealer has inspected and could not duplicate or correct problem. please provide further information.*jb
06/01/2000
 Throttle constantly sticks causes unsafe surging. dt
04/10/2002203/01/2000
 Consumer states intermittently the accelerator pedal sticks in the upward position. the consumer will depress harder to unstick the pedal causing the vehicle to lurch forward or take off with force. the dealer is aware. *jb *scc
07/03/2000
 While pressing on brakes vehicle surges forward.*ak
VEHICLE SPEED CONTROL - ACCELERATOR PEDAL
01/07/200620006/21/2003
 Throttle sticks from stopped position. additional force needed to depress gas pedal at times causing vehicle to accelerate more quickly than needed. *tr
07/05/20031
 Consumer states that while driving at any speed and with no warning accelerator pedal would stick, and it will be hard for the consumer to get control of the vehicle. dealer notified.*ak
12/12/20026400001
 The accelerator pedal was stuck, the dealer stated the vehicle's throttle was stuck in the close position. *jb
 Consumer states while traveling at highway speed consumer would have to use force on the accelerator pedal to gain speed. dealer has been contacted. please provide further information. ts
10/18/20021
 While the consumer was driving the accelerator pedal stuck causing rapid acceleration and the vehicle was difficult to control. *yh *dt
VEHICLE SPEED CONTROL - CRUISE CONTROL
04/21/200310000407/01/2000
 Cruise control does not work after 3 different modules were replaced by dealer. works initially but after few days stops functioning. maybe electrical problem shorting out cruise module. chevrolet not questioning 3 modules replacements in 1 year's time. *nlm