General Motors is recalling 686,287 units of its Lambda platform crossovers. On models equipped with a power rear hatch the system can potentially fail. This campaign includes the 2008-2012 Buick Enclave, 2009-2012 Chevrolet Traverse, 2007-2012 GMC Acadia, and 2007-2010 Saturn Outlook.

According to GM's documents to the National Highway Traffic Safety Administration (as a PDF), dirt can get into a portion of the strut that holds up the hatch and cause the part to prematurely fail. There's a redundancy in place called the Prop Rod Recovery system that's designed to shut the liftgate if there's a malfunction. However, if the breakdown happens too quickly after the hatch is opened the prop rod might not work the way it's supposed to. If someone were in the way of the falling liftgate, they could be hurt.

For the repair, dealers will update the software for the power liftgate actuator motor control unit to prevent the hatch from closing so quickly. They'll also check the operation of the system afterward.

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RECALL Subject : Liftgate Struts may Fail and Liftgate may Fall

Report Receipt Date: JUN 30, 2015
NHTSA Campaign Number: 15V415000
Component(s): STRUCTURE
Potential Number of Units Affected: 686,287
All Products Associated with this Recall
Vehicle Make Model Model Year(s)
BUICK ENCLAVE 2008-2012
CHEVROLET TRAVERSE 2009-2012
GMC ACADIA 2007-2012
SATURN OUTLOOK 2007-2010

Details

Manufacturer: General Motors LLC

SUMMARY:
General Motors LLC (GM) is recalling certain model year 2008-2012 Buick Enclave vehicles manufactured January 3, 2007, to February 29, 2012, 2009-2012 Chevrolet Traverse vehicles manufactured July 6, 2008, to February 29, 2012, 2007-2012 GMC Acadia vehicles manufactured September 15, 2006, to February 29, 2012, and 2007-2010 Saturn Outlook vehicles manufactured August 17, 2006, to March 18, 2010. The affected vehicles, equipped with the power liftgate option, have gas struts that hold the power liftgate up when open. These struts may prematurely wear and the open liftgate may suddenly fall.

CONSEQUENCE:
If the open liftgate unexpectedly falls, it may strike a person, increasing their risk of injury.

REMEDY:
GM will notify owners, and dealers will update the software for the power liftgate actuator motor control unit so that the motor will prevent the rapid closing of the lift gate, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact Buick customer service at 1-800-521-7300, Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Saturn customer service at 1-800-553-6000. GM's number for this recall is 15240.

NOTES:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

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