1999 Chevrolet U Van

ON NOVEMBER 18, 2002, ODI OPENED A PRELIMINARY EVALUATION (PE02-086) TO EVALUATE ALLEGATIONS OF REAR AXLE TRAILING ARM FAILURES IN THE SUBJECT VEHICLES (U-VAN) WHICH INCLUDED TWO REPORTING CRASHES.ON APRIL 9, 2003, ODI UPGRADED PE02-086 TO AN ENGINEERING ANALYSIS (EA03-005) TO CONTINUE ITS EXAMINATION OF THE ISSUE. THE TRAILING ARM DESIGN IN THESE VEHICLES HAS BEEN USED IN THE U-VAN FROM MY 1997 THROUGH THE PRESENT.THE GM ANALYSIS CONCLUDED THAT THE SUBJECT TRAILING ARMS COULD CRACK OR BUCKLE IF THEY WERE DAMAGED DURING ASSEMBLY, PRE-DELIVERY HANDLING, OR SUBJECTED TO CERTAIN SERVICE RELATED ABUSE CONDITIONS SUCH AS IMPROPER TOWING OR JACKING.ANALYSIS OF ODI AND GM DATA HAS IDENTIFIED 19 INCIDENTS OF REAR AXLE TRAILING ARM FAILURES IN THE SUBJECT VEHICLES.THERE HAVE BEEN NO NEW REPORTS TO ODI OR GM IN THE LAST 12 MONTHS AND ONLY ONE NEW COMPLAINT IN THE LAST 21 MONTHS. DUE TO THE LOW COMPLAINT RATE AND THE ABSENCE OF A CONTINUING TREND IN REPORTED FAILURES, A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED. THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST. THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.

MY VAN HAS BEEN IN THE SHOP FOR THE MONTH OF JAN. IT'S BEEN TO 2 DEALERS AND THEY ARE STILL NOT SURE WHAT IS CAUSING THE LOW COOLANT LIGHT TO BE DISPLAYED. SO FAR THEY REPLACE, HEAD GASCKET, MANIFOLD AND MANIFOLD GASKET, PISTONS, CYLINDERS, THERMOSTAT AND WATER PUMP. AT THIS TIME THE LOW COOLANT LIGHT IS STILL DISPLAYING. THE VAN HAS BEEN IN THE SHOP 4 TIMES FOR THE SAMETHING. I NEED SOME HELP?

NHTSA ID

10004883

Incident

Jan 1, 2003

Mileage

46,250 mi

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE MEDIA DISC PLAYER WITH THE LATEST CALIBRATIONS TO CORRECT A CONDITION OF THE REAR ENTERTAINMENT SYSTEM NOT OPERATING AS INTENDED IN COLDER AMBIENT TEMPERATURE AREAS DUE TO CALIBRATION CONCERNS.

Vehicle Recalls

Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.

Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.

Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.