1988 CHEVROLET TAHOE

WINDSHIELD WIPER BLADE CHATTER(REPLACE WIPER ARM AND BLADE). *SD

On January 11, 2011, ODI opened EA11-001 to investigate allegations of premature brake line corrosion failure in model year (MY) 1999 through 2003 General Motors (GM) full-size pickup trucks and sport utility vehicles sold or registered in the following region of the United States that NHTSA has vie... wed as salt states for investigations of corrosion related issues:Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.The subject vehicles represent the first five MY's of GM's GMT800 platform production, of which approximately 2,038,504 vehicles were sold in salt states (the subject vehicles).The GMT800 platform includes the following vehicles:1999-2007 Chevrolet Silverado and GMC Sierra 1500, 2500 and 3500 series pick-up trucks; 2000-2006 Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon sport utility vehicles; and 2002-2006 Cadillac Escalade and Chevrolet Avalanche sport-utility vehicles.General Motors produced a total of approximately 10,427,062 GMT800 vehicles for sales in the United States, including almost 5 million that were sold in salt states.Although there are over 60 different brake pipe routing configuration used in GMT800 vehicles, with the exception of the rear crossover pipes in MY 200x-2007 vehicles that changed from rear disc to drum brakes, all of the vehicles use brake pipes from the same supplier with a common double-wall, brazed steel pipe design with a combination of hot dip Zinc-Aluminum corrosion protection coating and Aluminum paint outer layer known in the industry as AlGal (ASTM-B750). ODI analysis of field data regarding GMT800 vehicles identified a total of 3,645 complaints of brake pipe corrosion failures, including 107 alleging crashes, and 40 injuries.Though only 20% of total GMT800 production, due to age and region the subject vehicles account for a disproportionate share of the failure experience; with 2,702 of the complaints (75%), 88 of the crashes (82%) and 20 of the injuries (50%) reported in those vehicles.Analysis of the complaints showed strong correlations to vehicle age and region.For vehicles with less than 8 years of service, the complaint rates were minimal for all regions.In the salt states the failure rates begin to climb as the vehicles advance in age, particularly in the Northeast corner of the United States.The complaint rates in the salt states go from less than 0.1 incident per thousand vehicles (IPTV) at 7 years in service to over 1.0 IPTV after the 12th year of service for the subject pickup trucks and utility vehicles.Most of the failures reported to ODI occurred in vehicles with more than 10 years in service.ODI?s investigation did not identify any specific defect conditions that were causing or contributing to the brake pipe failures.Nor did the analysis isolate the problem to any subject vehicle sub-populations when analyzed by vehicle type or production range.The investigation found that vehicles experiencing brake pipe corrosion failures were likely to have general patterns of excessive corrosion on the majority of the brake pipe assembly and appear to be occurring due to expected wear out for the brake pipe coating material used in the subject vehicles and the environmental conditions in severe corrosion states.A safety-related defect has not been identified at this time.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 monitor tRead more

The investigated concern involved chrome plating on interior door handles that could peel or separate from the plastic base material.This de-lamination could result in a sharp edge and pose a risk of laceration.In some cases, consumers reported minor hand/skin lacerations.Of these reported injuries,... the vast majority of injuries were to adults.Ninety percent of claims associated with interior door handle de-lamination were related to the front doors.In addition to the above Tahoe/Yukon vehicles, other GMT 900 series C/K vehicles (Avalanche, Escalade, Sierra, Silverado, and Suburban) have a trim level that utilizes the chrome plated interior door handles and were included in the analysis.The resultant population group had a total of 746 complaint reports with 309 injury incidents and 43,619 unique VIN regular warranty claims over a combined 451,745 vehicle population.The door handle supplier was changed in September 2006 with new tooling and process in place by October 2006.The base population prior to the September 2006 vendor change accounted for the bulk (or 89%) of all complaints and comparable injury reports and warranty claims.Due to the nature of the failure (thin chrome plating peeling off the door handle), only minor hand/skin laceration injuries similar to a paper cut were recorded.All but a few did not require professional medical treatment such as surgical or liquid sutures (i.e. stitches).Less than 10% of injury reports had specifically involved a 3-10 year old child.This was due to the fact that 90% of the claims were associated with door handles located in the front seating area (where the window glass panels usually have less solar tinting than rear window glass panels) where children are not normally seated. In July 2010, GM issued a Special Coverage Policy (SCP 09239) on the base vehicles to extend the warranty coverage to 10 years/100k miles.Recent data indicate that the base population complaint and injury reporting have subsided since the implementation of the SCP campaign.In June 2011, GM added the remaining interim population (Sep-Oct 2006) to the SCP.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 monitor this issue and reserves the right to take further action if warranted by the circumstances.Read more

THE OFFICE OF DEFECT INVESTIGATION (ODI) HAS INVESTIGATED ALLEGATIONS OF POWER STEERING ASSIST FLUCTUATIONS IN THE SUBJECT VEHICLES.FOR DETAILS AND A BASIS FOR THE INVESTIGATION CONCLUSIONS, PLEASE SEE THE CLOSING REPORT IN THE EA99-011 PUBLIC FILE.ODI HAS NOT IDENTIFIED A SAFETY-RELATED DEFECT TREN... D IN THE SUBJECT VEHICLE POPULATION.FUTHER EXPENDITURE OF AGENCY RESOURCES ON THIS SUBJECT DOES NOT APPEAR TO BE WARRANTED AT THIS TIME.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.THE ENGINEERING IS CLOSED.Read more