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Emergency Locking Retractors

WARNING: Perform this test in an area clear of other vehicles or obstructions. Do not conduct this test on the open road. A large, empty parking lot is suitable. Failure to observe this precaution may result in damage to the vehicle and possible personal injury.
  1. Fasten the seat belts, an assistant is needed when the retractor under test is not part of the driver seat belt.
  2. Accelerate the vehicle slowly to 16 km/h (10 mph) and apply the brakes firmly.
  3. Verify that the seat belt locks when braking firmly.
  4. If the belt does not lock, proceed with the following steps.

    Important:  When performing this check, note the position that the retractors are mounted. Some retractors are not mounted at a zero degree inclination.

    1. 4.1. Remove the seat belt retractor assembly.
    2. 4.2. Tilt the seat belt retractor slowly.
    3. 4.3. Ensure that the seat belt webbing can be pulled from the retractor at an inclination of 15 degrees forward or less, from the retractors mounted position.
    4. 4.4. Ensure the retractor cannot be pulled from the retractor at an inclination of 45 degrees forward or more.
    5. 4.5. If a seat belt retractor does not operate as described, replace the retractor assembly.
    Fig 1: Ensuring Proper Operation Of Seat Belt Retractors
    G02423696Courtesy of GENERAL MOTORS CORP.
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