Technical Service Bulletins, 2021 CHEVROLET CORVETTE
832 manufacturer communications from 403 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
| 350000 EQUIPMENT | 138 |
| 110000 ELECTRICAL SYSTEM | 116 |
| 060000 ENGINE AND ENGINE COOLING | 106 |
| 100000 POWER TRAIN | 74 |
| 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL | 48 |
| 160000 STRUCTURE | 35 |
| 200000 WHEELS | 32 |
| 020000 SUSPENSION | 20 |
200000 WHEELS
This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
100000 POWER TRAIN
This service bulletin provides a service procedure to correct a customer concern of a noise from transmission area and an MIL illuminated.
110000 ELECTRICAL SYSTEM
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
350000 EQUIPMENT
This service bulletin provides repair information to correct a customer concern of the carpet appearance near the center console area.
350000 EQUIPMENT
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
350000 EQUIPMENT
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
110000 ELECTRICAL SYSTEM
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
350000 EQUIPMENT
This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
200000 WHEELS
This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
140110 AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE
This service bulletin provides repair information for technicians that may be Unable to Complete Serial Data Authentication on the vehicle.
118000 ELECTRICAL SYSTEM:SOFTWARE
This service bulletin provides repair information for technicians that may be Unable to Complete Serial Data Authentication on the vehicle.
350000 EQUIPMENT
This service bulletin provides repair information for technicians that may be Unable to Complete Serial Data Authentication on the vehicle.
140000 AIR BAGS
This service bulletin provides repair information for technicians that may be Unable to Complete Serial Data Authentication on the vehicle.
110000 ELECTRICAL SYSTEM
This service bulletin provides repair information for technicians that may be Unable to Complete Serial Data Authentication on the vehicle.
110000 ELECTRICAL SYSTEM
This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
110000 ELECTRICAL SYSTEM
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
350000 EQUIPMENT
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
118000 ELECTRICAL SYSTEM:SOFTWARE
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
350000 EQUIPMENT
This Preliminary information communicates the possibility of misboxed/mislabled service parts.
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).
353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
This service bulletin provides repair information to correct a customer concerns of Radio Software issues.
350000 EQUIPMENT
This service bulletin provides repair information to correct a customer concerns of Radio Software issues.
110000 ELECTRICAL SYSTEM
This service bulletin provides repair information to correct a customer concerns of Radio Software issues.
060000 ENGINE AND ENGINE COOLING
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou
110000 ELECTRICAL SYSTEM
This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.
350000 EQUIPMENT
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
100000 POWER TRAIN
This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.
060000 ENGINE AND ENGINE COOLING
This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
350000 EQUIPMENT
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
980000 UNKNOWN OR OTHER
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
110000 ELECTRICAL SYSTEM
This Preliminary Information communicates programming direction for replacing the K218 module in this vehicle.
060000 ENGINE AND ENGINE COOLING
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
060000 ENGINE AND ENGINE COOLING
This service bulletin provides repair information to correct a customer concern of a chirp, squeak noise heard coming from the rear of vehicle.
121000 EXTERIOR LIGHTING:HEADLIGHTS
This Preliminary Information communicates instructions for a dealership technician to properly diagnose a Service Headlamp System message.
350000 EQUIPMENT
This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).
110000 ELECTRICAL SYSTEM
This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).
030000 SERVICE BRAKES, HYDRAULIC
This service bulletin provides information for dealers/technicians on Brake Pulsation, Noise and/or Visible Pitting Condition to Brake Rotor Surface.
350000 EQUIPMENT
This service bulletin provides information for having brake pulsation and/or repeat brake pulsation.
030000 SERVICE BRAKES, HYDRAULIC
This service bulletin provides information for having brake pulsation and/or repeat brake pulsation.
060000 ENGINE AND ENGINE COOLING
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
070000 FUEL SYSTEM, GASOLINE
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
070000 FUEL SYSTEM, GASOLINE
Service Update. Certain vehicles may incorrectly report to test tools an active permanent status of Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) P2781 (Downshift Switch Circuit High). This could cause the vehicle to not
100000 POWER TRAIN
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle
060000 ENGINE AND ENGINE COOLING
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle
160000 STRUCTURE
This service bulletin provides a procedure to correct a customer concern of Convertible Top Leak Around Side Glass in High Pressure Car Wash.
110000 ELECTRICAL SYSTEM
This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
100000 POWER TRAIN
This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
353000 EQUIPMENT:ELECTRICAL
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.
350000 EQUIPMENT
This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.
110000 ELECTRICAL SYSTEM
This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) a?? FAQs.
350000 EQUIPMENT
This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o
110000 ELECTRICAL SYSTEM
This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present o
020000 SUSPENSION
This service bulletin informs the technician that the shocks should not be modified by removing spacer to lower vehicle and should not be submitted as a warranty repair whenever there is a customer concern of a Service Front Lift System Mes
160000 STRUCTURE
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
350000 EQUIPMENT
This service bulletin advises the technician to take a screen shot of the park position sensor and send it to TAC, where they will determine trans replacement or vehicle repair to correct customer concerns of a Dead Battery, No Start, and/o
110000 ELECTRICAL SYSTEM
This service bulletin advises the technician to take a screen shot of the park position sensor and send it to TAC, where they will determine trans replacement or vehicle repair to correct customer concerns of a Dead Battery, No Start, and/o
100000 POWER TRAIN
This service bulletin advises the technician to take a screen shot of the park position sensor and send it to TAC, where they will determine trans replacement or vehicle repair to correct customer concerns of a Dead Battery, No Start, and/o
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
060000 ENGINE AND ENGINE COOLING
This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
120000 EXTERIOR LIGHTING
This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
060000 ENGINE AND ENGINE COOLING
This PI bulletin advises the technician on the proper way to install the pistons in an engine.
100000 POWER TRAIN
This PI bulletin advises the technician on the proper way to install the pistons in an engine.
353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT
This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen. While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will st
110000 ELECTRICAL SYSTEM
This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
103110 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
This Preliminary information communicates that characterizing certain parts is no longer required, the service instruction was changed but technicians are still trying to perform the function causing further confusion.
340000 COMMUNICATION
This Preliminary information communicates that characterizing certain parts is no longer required, the service instruction was changed but technicians are still trying to perform the function causing further confusion.
980000 UNKNOWN OR OTHER
This Preliminary information communicates that characterizing certain parts is no longer required, the service instruction was changed but technicians are still trying to perform the function causing further confusion.
060000 ENGINE AND ENGINE COOLING
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
110000 ELECTRICAL SYSTEM
This service bulletin provides repair information to correct a customer concern of the Convertible Top May Not Lower Intermittently, TDTC B19E4 SYM64 Stored in History.
160000 STRUCTURE
This service bulletin provides repair information to correct a customer concern of the Convertible Top May Not Lower Intermittently, TDTC B19E4 SYM64 Stored in History.
350000 EQUIPMENT
This service bulletin provides repair information to correct a customer concern of the Convertible Top May Not Lower Intermittently, TDTC B19E4 SYM64 Stored in History.
980000 UNKNOWN OR OTHER
This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
110220 ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS
This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
353000 EQUIPMENT:ELECTRICAL
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.
353650 EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.
350000 EQUIPMENT
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
350000 EQUIPMENT
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
353650 EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
110000 ELECTRICAL SYSTEM
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
060000 ENGINE AND ENGINE COOLING
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
353610 EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
117100 ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.
350000 EQUIPMENT
This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).
110000 ELECTRICAL SYSTEM
This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).
110000 ELECTRICAL SYSTEM
This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
100000 POWER TRAIN
This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.
100000 POWER TRAIN
This service bulletin provides a Diagnostic Aid for PicoScope Information and Setup for Transmission Related Concerns.
200000 WHEELS
This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.
010000 STEERING
This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.
020000 SUSPENSION
This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.
120000 EXTERIOR LIGHTING
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
350000 EQUIPMENT
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
110000 ELECTRICAL SYSTEM
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
Showing 100 of 832 bulletins.
NHTSA Safety Investigations, CHEVROLET CORVETTE
Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.
EA, Closed
, Model Year: 2005
Simultaneous Loss of Low-Beam Headlights
On May 14, 2014, General Motors (GM) submitted a Part 573 defect information report initiating NHTSA Safety Recall 14V-251 to remedy the subject vehicles.GM will remedy a defect condition in the underhood bussed electrical center (UBEC) by modifying the vehicle's electrical harnessing.GM also announ
... ced a customer satisfaction bulletin to address this issue on model year (MY) 2008-2013 Chevrolet Corvettes.Both programs will be conducted free of charge.According to GM, when the engine heats up and cools down (from normal use), the plastic material in the UBEC housing expands at a different rate than an electrical conductor routed within it.The difference in expansion rates results in bending of the conductor, a control circuit for the low beam headlights.After multiple thermal cycles, often taking several years of use, the conductor fractures resulting in an open circuit.When this occurs the low-beam headlights will not illuminate.After the engine is turned off and the UBEC cools, the conductor may temporarily reconnect and restore low-beam function, although subsequent failures will occur.This condition does not affect high-beam headlights, marker lamps, turn signals or fog lamps.Simultaneous loss of low-beam headlights could reduce the driver's visibility, increasing the risk of a crash. The ODI report counts noted above, involving the loss of low beam headlights, represents those received at the time of GM's recall filing; however NHTSA has since received additional complaints.GM submitted similar complaints in response to the agency's information request.Among the complaints reported to NHTSA, five alleged minor crashes in which the vehicle ran off the road or into roadside objects due to the sudden loss of headlights.Two of these complaints alleged minor injuries and three alleged property damage.Several other reports to NHTSA alleged close calls due to the loss of lighting.GM states that it has received no reports of crashes, injuries or fatalities as a result of this condition. GM's recall action appears to adequately address the safety risks in the subject vehicles of concern to ODI.Accordingly, the investigation is closed.In addition to recalling the subject vehicles, GM is covering MY 2008-2013 Corvettes, which contain essentially the same UBEC, under a customer satisfaction campaign.ODI notes that these vehicles exhibit a lower likelihood of failure due to their comparatively shorter service life. The VOQs cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers: 10400308, 10415603, 10415867, 10416531, 10421639, 10424391, 10424543, 10445971, 10451733, 10454919, 10460674, 10460750, 10463546, 10466342, 10466857, 10468128, 10469057, 10470616, 10471595, 10474350, 10474368, 10475257, 10486597, 10491670, 10496592, 10496788, 10498100, 10502059, 10505606, 10508507, 10510052, 10511467, 10511517, 10511576, 10511696, 10511699, 10511789, 10511837, 10511994, 10512072, 10512093, 10512154, 10512292, 10512341, 10512856, 10513422, 10514576, 10514802, 10514978, 10515162, 10515311, 10515821, 10519426, 10519879, 10520155, 10521036, 10521585, 10522260, 10523059, 10523064, 10523190, 10525646, 10531602, 10531631, 10532221, 10532439, 10533227, 10533251, 10533339, 10536835, 10537561, 10537612, 10538184, 10541749, 10542468, 10542540, 10542576, 10542708, 10542726, 10543187, 10543970, 10544083, 10544810, 10545441, 10545516, 10547343, 10547561, 10547600, 10548492, 10548588, 10548687, 10548982, 10549272, 10549487, 10550079, 10550260, 10551233, 10551867, 10551926, 10551978, 10552019, 10553258, 10554456, 10554573, 10556002, 10556433, 10556844, 10556984, 1Read more
PE, Closed
, Model Year: 2005
Loss of Low Beam Headlights
The Office of Defects Investigation (ODI) opened this investigation based on 30 reports from consumers alleging that, after driving for a short time (5 to 30 minutes), both low beam headlights stopped working simultaneously and without warning. The low beam headlights remained inoperative for the re
... mainder of the drive cycle, however no other lighting is affected.General Motors (GM) provided information in response to ODI's information request letter explaining that the loss of headlights is caused by a fractured low beam circuit wire in the underhood bussed electrical center (UBEC), a device that is similar to a fuse box. The UBEC is located in a high heat area near the engine, and the low beam circuit wire routing within the UBEC makes it susceptible to cyclical stress caused by thermal expansion.The investigation covers model years 2005-2007 Corvettes however ODI also has received four VOQs alleging the same condition in model year 2008 Corvettes. ODI is upgrading the investigation to an Engineering Analysis to further examine the consequences, frequency and scope of this problem. The ODI reports cited above can be reviewed at http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers.For MY 2005-2007: 10400308, 10415603, 10415867, 10416531, 10421639, 10424391, 10424543, 10445971, 10451733, 10454919, 10460674, 10460750, 10463546, 10466342, 10466857, 10468128, 10469057, 10470616, 10471595, 10474350, 10474368, 10475257, 10486597, 10491670, 10496592, 10496788, 10498100, 10502059, 10505606, 10508507, 10510052, 10511467, 10511517, 10511576, 10511696, 10511699, 10511789, 10511837, 10511994, 10512072, 10512093, 10512154, 10512292, 10512341, 10513422, 10514802, 10514978, 10515162, 10515311, 10515821, 10519426, 10519879, 10520155, 10521036, 10521585, 10522260, 10523064, 10523190, 10525646, 10531602, 10531631, 10532439, 10533227, 10533251, 10533339For MY 2008: 10512856, 10514576, 10523059, 10532221Read more
PE, Closed
, Model Year: 2004
Fuel Tank Leak
In its June 30, 2010 response to ODI's Information Request letter, General Motors (GM) identified the leak source as cracks in either the fuel tank cross-over tube quick connector (connector) and/or the hot-plate weld joint of the connector to the tank.The root causes are attributed to errors in con
... nector material processing, variations in the welding process, and high stresses placed on the driver's side connector during vehicle use.GM also identified the scope of the subject vehicles involved to be those produced from approximately October 22, 2003 through March 19, 2004.GM does not believe the cracks represent an unreasonable risk to motor vehicle safety based on factors that include; low rate of fuel leaking to the ground, detectable fuel odor, the cracks are at the top of the tank, leaks are detectable during refueling, small quantities of fuel that leaks out, and no associated property damage or personal injury claims.On August 13, 2010, GM issued a Special Coverage Adjustment to remedy fuel tank quick connector leaks and extend the warranty for this issue to 10 years or 100,000 miles in certain 2004 Chevrolet Corvette and Cadillac XLR vehicles.Vehicle owners will be notified by mail of the adjustment and will also be entitled to reimbursement for previously paid repairs covered under the adjustment.(See file for, SERVICE BULLETIN 10150: SPECIAL COVERAGE ADJUSTMENT-FUEL TANK QUICK CONNECTOR LEAK).The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency reserves the right to take further action if warranted by the circumstances.Read more
EA, Closed
, Model Year: 2005
Electronic Stability Control
On April 26, 2010, at NHTSA's request following this investigation, General Motors submitted a Defect Information Report to NHTSA to correct a defect associated with the Vehicle Stability Control (VSC) system in approximately 40,000 Model Year (MY) 2005 and 2006 Chevrolet Corvette vehicles (NHTSA Re
... call No. 10V-172).According to the report, these vehicles may have a problem with the Steering Wheel Position Sensor (SWPS) connector created by a fretting condition in the connector (small movement of the pins back and forth creating a residue build up) which could change the electrical resistance and corrupt the information signal to the VSC computer.The VSC system uses the information from the SWPS to calculate the driver's intended vehicle direction; this information is cross referenced to sensors that tell the system which direction the vehicle is actually going and the system will, if it determines a variance indicating the vehicle is in a over-steer or under-steer condition, reduce throttle control and apply braking to make a correction in vehicle direction towards what the system believes is the driver's intended path.GM dealers will inspect the SWPS connector of recalled vehicles and, if necessary, install a terminal position assurance clip to the connector.GM has advised NHTSA that its position is that the inappropriate activations of the VSC system do not present an unreasonable risk to safety because GM believes that the activations are low in occurrence, a rare set of conditions would need to be present, the driver has the ability to maintain direction control if the alleged condition were to occur, and that there are no reports of injuries.NHTSA does not agree.Based on interviews with complainants and testing performed at the NHTSA Vehicle Research and Testing Center in East Liberty, Ohio, ODI believes that the majority of the unwarranted activations of the VSC system occur when turning, in such scenarios as travelling highway entrance or exit ramps or in street traffic conditions.Complainants report the effect produced by the malfunction of the VSC system is sudden unexpected braking and in some cases a sudden unexpected change in vehicle direction which some complainants indicate was sufficient to cause a movement into an adjoining lane of traffic or in some cases into curbing or stationary objects.During the VSC event the brake lights of the Corvette are not illuminated, depriving trailing traffic from indication that braking is occurring and some complainants indicate the braking effect can be severe and last up to 10 seconds in length.Based on available information ODI counts four crashes due to a malfunction of the VSC system; GM is counting one crash due to the problem.In these circumstances NHTSA believes the defect presents an unreasonable risk to motor vehicle safety, and so advised GM when requesting this recall.This investigation is closed based on GM's recall.Read more
PE, Closed
, Model Year: 2005
ELECTRONIC STABILITY CONTROL MALFUNCTION
ON SEPTEMBER 17, 2008, ODI OPENED PRELIMINARY EVALUATION PE08-056 TO INVESTIGATE ALLEGATIONS OF INAPPROPRIATE ACTIVATION OF THE ELECTRONIC STABILITY CONTROL (ESC) SYSTEM IN MODEL YEAR (MY) 2005 AND 2006 CHEVROLET CORVETTE VEHICLES.SOME REPORTS RECEIVED BY ODI AND SOME REPORTS TO GENERAL MOTORS (GM)
... CONTAINED IN GM'S RESPONSE TO PE08-056 ALLEGE THAT THE ESC SYSTEM MALFUNCTIONED CAUSING A SUDDEN AND INAPPROPRIATE BRAKING ACTION WITHOUT ILLUMINATION OF THE BRAKE LIGHTS AND CAUSING THE VEHICLE TO SWERVE LEFT OR RIGHT UNEXPECTEDLY. GM ISSUED A TECHNICAL SERVICE BULLETIN IN JANUARY 2006, LATER REVISED IN OCTOBER 2007 (BULLETIN NO. 06-02-35-002B) CONCERNING ESC PROBLEMS IN MY 2005 AND 2006 CHEVROLET CORVETTE VEHICLES WITH THE TELESCOPING STEERING WHEEL OPTION.THE BULLETIN WAS INTENDED TO CORRECT A FRETTING CORROSION PROBLEM WITH THE STEERING WHEEL POSITION SENSOR CONNECTOR C202. AN ENGINEERING ANALYSIS HAS BEEN OPENED (EA09-002) TO CONTINUE TO ASSES THE SCOPE, FREQUENCY, AND SAFETY-RELATED CONSEQUENCES OF THE ALLEGED DEFECT.Read more
EA, Closed
, Model Year: 1997
STEERING COLUMN LOCKUP
IN 2001, GENERAL MOTORS (GM) ISSUED CUSTOMER SERVICE CAMPAIGNS 1044 AND 1044A TO ADDRESS A CONDITION WHERE THE STEERING COLUMN WOULD FAIL TO UNLOCK DURING THE INITIAL KEY-IN AND START-UP IN CERTAIN MY 1998-2000 CORVETTE VEHICLES.HOWEVER, ODI CONTINUED TO RECEIVE COMPLAINTS CONCERNING STEERING COLUMN
... LOCKUP ON CORVETTE VEHICLES.AS A RESULT, PE02-054 WAS OPENED AND LATER UPGRADED TO EA02-031 FOR MY 1997-2001 SUBJECT VEHICLES.ODI'S ANALYSIS IDENTIFIED CONCERNS WITH POST-REPAIR FAILURES IN VEHICLES SERVICED THROUGH THE CAMPAIGNS, AS WELL AS, FAILURES IN MY 1997-2003 SUBJECT VEHICLES NOT INCLUDED IN THE CAMPAIGNS.(NOTE: THE MANUFACTURER FAILURE DATA ABOVE IS LIMITED TO MY 1997-2003 VEHICLES THROUGH 10/17/2003.)ON FEBRUARY 6, 2004, GM NOTIFIED NHTSA OF A SAFETY DEFECT IN MY 1997-2004 CORVETTE VEHCLES EQUIPPED WITH MANUAL TRANSMISSIONS AND MY 1997-2000 CORVETTE VEHICLES WITH AUTOMATIC TRANSMISSIONS.THE NOTIFICATION STATED THAT IF THE VOLTAGE AT THE POWERTRAIN CONTROL MODULE (PCM), WHICH WAS DESIGNED TO SHUT DOWN THE FUEL SUPPLY WHEN THE STEERING COLUMN FAILED TO UNLOCK AND THE CUSTOMER TRIED TO DRIVE THE VEHICLE, IS LOW OR INTERRUPTED, THE FUEL SHUT OFF MAY NOT OCCUR.AS A RESULT, THE CUSTOMER COULD DRIVE THE VEHICLE WHILE THE STEERING COLUMN WAS LOCKED CAUSING THE DRIVER TO LOSE STEERING CONTROL AND POSSIBLY CRASH WITHOUT WARNING.GM WILL INSTRUCT OWNERS TO BRING THEIR VEHICLES TO A DEALER TO HAVE THE PCM REPROGRAMMED FOR MANUAL TRANSMISSION VEHICLES AND THE ELECTRIC COLUMN LOCK DISABLED FOR AUTOMATIC TRANSMISSION VEHICLES.ODI WILL MONITOR THE EFFECTIVENESS OF THE REMEDY IN THE MANUAL TRANSMISSION VEHICLES AND TAKE FURTHER ACTION IF WARRANTED.Read more
PE, Closed
, Model Year: 1997
STEERING COLUMN LOCKUP
SEE RESUME IN REPOSITORY.
EA, Closed
, Model Year: 1997
FRONT LAP BELT MALFUNCTION
ODI OPENED THIS EA00-009 ON MARCH 16, 2000, TO CONTINUE ANALYSES BEGUN UNDER PRELIMINARY EVALUATION PE99-076.THE ALLEGED DEFECT: LAP BELT WEBBING IN BOTH SEATING POSITIONS TENDS TO FOLD OVER WHILE ENTERING THE RETRACTOR OPENING.THESE FOLDS FREQUENTLY IMPEDE PROPER WEBBING RETRACTION.IF THE RETRACTOR
... HAS BEEN INADVERTENTLY TOGGLED INTO AUTOMATIC LOCK RETRACTOR (ALR) MODE BY BEING EXTENDED TO ITS FULL LENGTH, IT MAY FAIL TO RESET ITSELF TO THE NORMAL EMERGENCY LOCK RETRACTOR (ELR) MODE.SUCH A CONDITION HAS BEEN SHOWN TO RENDER THE ACTIVE RESTRAINT UNUSABLE.CONCLUSION: GM WILL REMEDY THE ALLEGED DEFECT IN 71,569 SUBJECT VEHICLES BUILT PRIOR TO AUGUST 1999 BY ADDING WEBBING GUIDE INSERTS TO THE LAP RETRACTOR OPENINGS OF BOTH SEATING POSITIONS TO PREVENT THE ADMISSION OF FOLDED WEBBING ONTO THE RETRACTOR SPOOL.THIS ENGINEERING ANALYSIS HAS BEEN CLOSED.Read more
PE, Closed
, Model Year: 1997
FRONT LAP BELT MALFUNCTION
There is no summary currently available
PE, Closed
, Model Year: 1998
STEERING COLUMN LOCK MODULE
There is no summary currently available
DP, Closed
, Model Year: 1984
BRAKE PULL
THE PETITIONS STATED THAT:WE REPRESENT THE OWNER OF A 1990 CHEVROLET CORVETTE WHICH, WHEN THE BRAKES WERE APPLIED, SUDDENTLY, VIOLENTLY, AND UNEXPECTEDLY PULLS TO THE LEFT.THIS IS A INTERMITTENT DEFECT WHICH DOES NOT OCCUR WITH AN REGULARITY.
SQ, Closed
, Model Year: 1994
ENGINE WIRING HARNESS ROUTING
THIS CONDITION POSES NO SAFETY-RELATED CONSEQUENCE IF THE IDENTIFIED WIRING HARNESS WERE TO CONTACT THE EXHAUST SHIELD.ONLY ONE MONTH OF PRODUCTION WAS INVOLVED IN THIS CAMPAIGN.THE SUBJECT WIRING HARNESS CONTAINS THE GROUND WIRES FOR THE ENGINE OIL TEMPERATURE SENSOR, O2 SENSOR, KNOCK SENSOR, AND T
... HE OIL LEVEL SENSOR.ALL SENSORS INVOLVED OPERATE AT A VERY LOW VOLTAGE (LESS THAN 1 V).THE ONLY REPORTED ADVERSE EFFECT IF THE HARNESS WERE TO CONTACT THE EXHAUSE SHIELD, WOULD BE THE ILLUMINATION OF THE CHECK ENGINE LIGHT OR ERRATIC DASH GAUGE MOVEMENT.THIS SQ IS CLOSED.Read more
DP, Closed
, Model Year: 1990
AIRBAG FAILED TO DEPLOY
AIRBAG FAILED TO DEPLOY
PE, Closed
, Model Year: 1992
INCONSIS.BRK LGT OPERATION
There is no summary currently available
EA, Closed
, Model Year: 1985
SAFETY BELT RETRACTOR FAIL
There is no summary currently available
PE, Closed
, Model Year: 1986
SAFETY BELT RETRACTOR FAIL
There is no summary currently available
PE, Closed
, Model Year: 1990
PARKING BRAKE FAILURE
There is no summary currently available
PE, Closed
, Model Year: 1990
UNDER DASH FIRE
There is no summary currently available
PE, Closed
, Model Year: 1984
TIE ROD SOCKET FAILURE
There is no summary currently available