Manufacturer communication — 2006 GMC YUKON DENALI XL

• Applies to 2005-2014 GM passenger cars and light duty trucks.

  the passage

  2005-2014 GM Passenger Cars and Light Duty Trucks

• Overspool lock: if the webbing snaps back to the stowed position rapidly enough, the retractor locks with the belt fully stowed.

  the passage

  If the webbing snaps back to the stowed position rapidly enough, the retractor will lock with the belt fully stowed.

• Vehicle-sensing lock occurs when the vehicle changes speed or direction abruptly: rapid acceleration, rapid deceleration or aggressive cornering.

  the passage

  The vehicle changes speed or direction abruptly (the vehicle goes into rapid acceleration OR rapid deceleration or there is aggressive cornering).

• It can also occur with the vehicle static, parked on a large slant, fore-aft or side-to-side.

  the passage

  It can also occur in a static condition when a vehicle is parked on a large slant (fore-aft or side-to-side), such as streets in San Francisco, California.

• Web-sensing lock: when the webbing reels out at an accelerated rate it goes into lock mode and stays there until tension is released.

  the passage

  When the webbing reels out at an accelerated rate, it goes into lock mode and stays there until tension is again released.

• Pulling the webbing all the way out automatically converts the retractor into a cinch-down mode (ALR), typically used to secure a child seat tightly.

  the passage

  When the webbing is pulled all the way out, it automatically converts the retractor into a cinch-down mode (i.e. ALR). This is typically used to tightly secure a child seat to the vehicle.

Possible causes

• With the webbing fully loaded on the spool the retractor cannot rewind further to release the locking mechanism, so the occupant cannot extract the belt.

  the passage

  Since the webbing is now fully loaded on the spool, the retractor cannot rewind itself further to release the locking mechanism. When this happens, the occupant cannot extract the belt to wear it.

Repair

1. Pull hard on the locked webbing and then release; the hard pull extracts a small amount of webbing, which permits a small amount of retraction when released.

   the passage

   Pull hard on the locked webbing and then release. The hard pull extracts a small amount of webbing from the retractor which, in turn, permits a small amount of retraction to occur when released.

2. The ALR mode is cancelled automatically when the belt is unfastened and stowed.

   the passage

   The ALR mode of operation is automatically cancelled when the belt is unfastened and stowed (the belt returns to normal sensitive function).

Caution

• Do not replace the retractor for this condition before first trying to disengage the locking mechanism as recommended.

  the passage

  DO NOT replace the retractor for this condition until first attempting to disengage the locking mechanism by following the recommendation listed below.

• A belt that the customer says locks intermittently in these conditions is working as designed and functioning properly.

  the passage

  Please inform customers that may comment that “the belt locks intermittently” that this is the design intent and the belt is functioning properly.