NHTSA Defect Investigations for the 1999 Cadillac Escalade

The Office of Defects Investigations (ODI) is an office within the NHTSA which investigates serious safety problems in the design, construction or performance of vehicles. The NHTSA is authorized to order manufacturers to recall and repair vehicles, if the ODI finds a safety issue. NHTSA investigations for the 1999 Cadillac Escalade, both ongoing and closed, are listed below:

  1. INVESTIGATION: SEAT BELT ANCHORAGE SEPARATION

    NHTSA Engineering Analysis #EA01018

    • Status:
      CLOSED
    • Date Opened: December 20, 2001
    • Date Closed: December 09, 2002
    • Recall: No recall issued

    Component(s): Seat Belts:Front:Anchorage

    Summary:

  2. INVESTIGATION: UNWANTED LOW-SPEED ABS ACTIVATION

    NHTSA Preliminary Evaluation #PE05020

    Component(s): Service Brakes, Hydraulic:Antilock
    Service Brakes, Hydraulic:Antilock:Control Unit/Module

    Summary: In a letter dated August 29, 2005, GM notified ODI that it was recalling certain model year 1999 through 2002 C/K pickup trucks and sport utility vehicles to correct a problem with anti-lock brake system (ABS) wheel speed sensor corrosion that may result in unwanted ABS activation and extended stopping distances during low-speed braking (recall 05V-379).GM's recall covers approximately 804,000 vehicles currently registered in the following 14 "salt-belt" states:Connecticut, Illinois, Indiana, Massachusetts, Maine, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, and West Virginia.the recall procedure will involve removing the sensor, cleaning the mounting surface, applying a rust inhibitor (zinc-X) to the surface, and reinstalling the sensor.if necessary, the sensor will be replaced. The population and failure report data given in this resume are for the full region that has been considered by ODI as the "salt-belt."that includes Delaware, Iowa, Maryland, Minnesota, Missouri, Wisconsin and the District of Columbia in addition to the 14 states included in 05V-379.the states covered by GM's recall have the highest incident rates for the subject condition, accounting for 91% of the incidents, but only 24% of subject vehicle sales in the United States.ODI's analysis determined that 840 of the complaints, 244 of the crashes, and 16 of the injuries identified in this investigation occurred in those states.the resulting incident and crash rates are 96.2 and 28.0 per 100,000 vehicles respectively (note:rates are based on vehicle sales, not registered vehicles). The corresponding numbers in the excluded portions of the "salt-belt" are 399,000 vehicles, 81 incidents (20.3 per 100,000 vehicles), 3 crashes, and no injuries.the statistics in the remaining 30 states are 2,406,000 vehicles, 168 incidents (7.0 per 100,000 vehicles), 31 crashes, and one injury.GM and ODI are continuing to monitor the problem experience in states that are not included in the recall.GM will provide ODI with updated complaint, field report, and warranty data in November 2005.ODI and GM will review that data and assess the appropriateness of the current scope of the recall at that time.

  3. INVESTIGATION: THROTTLE STICKING CLOSED

    NHTSA Engineering Analysis #EA02015

    • Status:
      CLOSED
    • Date Opened: August 01, 2002
    • Date Closed: January 12, 2004
    • Recall: No recall issued

    Component(s): Vehicle Speed Control:Linkages

    Summary: This investigation involves the General Motors corporation (GM)throttle body (TB) utilized in model year (MY) 1999-2002 Silverado, Sierra, Tahoe, Suburban, Avalanche and Yukon (subject vehicle(s)) with 4.8L, 5.3L, and 6.0L engines. The TB valve may intermittently stick in a closed position.in such a situation, an operator may apply additional accelerator pedal force to increase engine speed.the application of additional accelerator pedal force, to open a stuck throttle valve, may open the throttle valve more than intended and, in turn, accelerate the engine and vehicle more than intended and reasonably expected by the driver.on August 1, 2002, the Office Of Defects Investigation (ODI), of the National Highway Traffic Safety Administration (NHTSA), opened this engineering analysis.the investigation revealed that two factors may cause the defect: 1) TB manufacturing process problems; and 2) accumulation of deposits (a PCV system by-product) on or around the TB throttle valve and bore.ODI concludes that the TB performs in a defective manner after analyzing GM's data submissions, and test data collected by the Vehicle Research And Test Center (VRTC).fifty-nine crashes are alleged to have occurred as a result of GM's TB defect.the majority of the crashes involve a single vehicle, engaging in a close quarter vehicle maneuver (or low speed), and causing only minor property damage.four out of the fifty-nine crashes involve injury, and those injuries were minor.although GM's TB is defective, based on the evidence gathered, ODI has found that the accelerator pedal force required to open a stuck throttle valve is negligible, and the throttle valve does not stick in the open position.therefore this engineering analysis (EA02-015) will be closed at this time.the closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.for a detailed discussion of the TB component and testing, please see the attached report.

  4. INVESTIGATION: THROTTLE STICKING

    NHTSA Preliminary Evaluation #PE02021

    • Status:
      CLOSED
    • Date Opened: February 11, 2002
    • Date Closed: August 01, 2002
    • Recall: No recall issued

    Component(s): Vehicle Speed Control:Linkages

    Summary: There is no summary currently available

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