NHTSA Office of Defects Investigation
Engineering Analysis EA02-031: STEERING COLUMN LOCKUP
- Closed
NHTSA's Office of Defects Investigation opened Engineering Analysis EA02-031 on November 15, 2002, the day it closed Preliminary Evaluation PE02-054, which this investigation's summary cites, and closed it on March 11, 2004. NHTSA's investigations file lists the 1997–2004 Chevrolet Corvette for it and links recall 04V-060 to it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- EA02-031 (also written EA02031)
- Investigation type
- Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
- Status
- Closed March 11, 2004
- Opened
- Closed
- Vehicle or equipment manufacturer
- General Motors, LLC
- Components
- Steering; Steering — Column; Steering — Column Locking — Anti-Theft Device
- Recall linked by NHTSA
- 04V-060: GM/ELECTRONIC COLUMN LOCK, reported
- Vehicles and equipment
- 1997–2004 Chevrolet Corvette
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA02-031.
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.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA02-031. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
What an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Chevrolet VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for EA02-031
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.