FEB 09, 2004

1997 CHEVROLET CORVETTE

ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH ELECTRONIC COLUMN LOCK SYSTEMS (ECL), WHEN THE IGNITION SWITCH IS TURNED TO ¿LOCK,¿ THE ECL SYSTEM PREVENTS TURNING OF THE STEERING SYSTEM. WHEN THE VEHICLE IS STARTED, THE ECL UNLOCKS THE STEERING SYSTEM. THE VEHICLE IS DESIGNED SO THAT IF THE COLUMN FAILS TO UNLOCK WHEN THE VEHICLE IS STARTED AND THE CUSTOMER TRIES TO DRIVE, THE FUEL SUPPLY WILL BE SHUT OFF SO THAT THE VEHICLE CANNOT MOVE WHEN THE VEHICLE CANNOT BE STEERED. IF VOLTAGE AT THE POWERTRAIN CONTROL MODULE IS LOW OR INTERRUPTED, HOWEVER, THE FUEL SHUT OFF MAY NOT OCCUR AND THE VEHICLE CAN BE ACCELERATED WHILE THE STEERING SYSTEM IS LOCKED. ALSO WHEN THE CONTROL SYSTEM SHOWS THAT THE ECL IS UNLOCKED AND THE VEHICLE IS BEING DRIVEN, THE LOCK PIN LOCATION CAN VARY. DEPENDING ON THE LOCATION OF THE LOCK PLATE RELATIVE TO THE SWITCH TRANSITION POINT, THERE COULD THEN BE CONTACT BETWEEN THE LOCK PLATE AND PIN CAUSING THE STEERING TO LOCK WHILE DRIVING .

IF THIS OCCURS, A CRASH COULD OCCUR WITHOUT WARNING.

ON VEHICLES EQUIPPED WITH AN AUTOMATIC TRANSMISSION, THE DEALER WILL DISABLE THE STEERING COLUMN LOCK BY REMOVING THE COLUMN LOCK PLATE. WHEN THE IGNITION KEY IS REMOVED, THE TRANSMISSION SHIFTER WILL LOCK BUT THE STEERING COLUMN WILL NOT LOCK. ON VEHICLES EQUIPPED WITH A MANUAL TRANSMISSION, THE DEALER WILL REPROGRAM THE POWERTRAIN CONTROL MODULE, PERFORM A DIMENSIONAL CHECK OF THE COLUMN LOCK AND, IF NECESSARY, REPLACE THE LOCK PLATE. THE STEERING COLUMN ON THESE VEHICLES WILL CONTINUE TO LOCK WHEN THE KEY IS REMOVED. OWNER NOTIFICATION TO OWNERS OF 1997 VEHICLES EQUIPPED WITH AUTOMATIC TRANSMISSIONS BEGAN ON APRIL 26, 2004. OWNERS OF 1998 THROUGH 2004 VEHICLES (EXCEPT 1997-1998 MANUAL TRANSMISSION VEHICLES) WILL BE NOTIFIED BEGINNING ON AUGUST 2, 2004. THE REMAINING OWNERS (1997-1998 MANUAL TRANSMISSION VEHICLES) WILL BE NOTIFIED LATER IN 2004, WHEN PARTS ARE AVAILABLE. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438.

126624

GENERAL MOTORS CORP. 04006

APR 17, 2000

1997 CHEVROLET CORVETTE

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE LAP BELT WEBBING CAN TWIST ALLOWING THE WEBBING TO BECOME JAMMED IN THE RETRACTOR.

WHEN THE BELT WEBBING BECOMES JAMMED IN THE RETRACTOR, THE SEAT BELT MAY BE UNUSABLE.

DEALERS WILL INSTALL INSERTS TO THE BELT WEB GUIDE OF EACH LAP BELT RETRACTOR.

71569

GENERAL MOTORS CORP. 00034

MAR 20, 1997

1997 CHEVROLET CORVETTE

THE REAR SUSPENSION TIE ROD ASSEMBLY CAN FRACTURE.

IF THIS WERE TO OCCUR WHILE THE VEHICLE WAS IN MOTION, LOSS OF DIRECTIONAL CONTROL CAN RESULT INCREASING THE RISK OF A VEHICLE CRASH.

DEALERS WILL REPLACE THE LEFT AND RIGHT-HAND REAR SUSPENSION TIE ROD LINKS.

1414

GENERAL MOTORS CORP.

JUN 28, 1997

1997 CHEVROLET CORVETTE

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SEAT BELTS IN THESE VEHICLES INCORPORATE AN ENERGY MANAGEMENT LOOP. THIS LOOP IS INADEQUATE TO ABSORB THE NECESSARY FORCES THAT CAN BE EXERTED ON IT. THEREFORE, THE VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FMVSS NO. 208, "OCCUPANT CRASH PROTECTION."

IN THE EVENT OF A VEHICLE CRASH, THE ENERGY MANAGEMENT LOOP WILL NOT ABSORB ENOUGH ENERGY, AND INJURY TO THE SEAT OCCUPANT CAN OCCUR.

DEALERS WILL REPLACE THE DRIVER AND PASSENGER SIDE SEAT BELT RETRACTOR ASSEMBLIES.

4369

GENERAL MOTORS CORP.

JUN 23, 1997

1997 CHEVROLET CORVETTE

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES HAVE A TORN FUEL TANK SENDING UNIT/PUMP SEAL. THIS CAN CAUSE FUEL ODOR AND/OR LEAKAGE AT THE ATTACHMENT LOCATION.

FUEL LEAKAGE FROM A TORN SEAL CAN RESULT IN A FIRE IF AN IGNITION SOURCE IS PRESENT.

DEALERS WILL REPLACE THE LEFT AND RIGHT HAND FUEL TANK ASSEMBLIES (INCLUDING FUEL SENDING UNIT AND PUMP).

3792

GENERAL MOTORS CORP.