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 2009 GMC Acadia, both ongoing and closed, are listed below:

  1. INVESTIGATION: Loss of Headlamp Illumination

    NHTSA Defect Investigation #DP12003

    • Status:
    • Date Opened: June 04, 2012
    • Date Closed: July 24, 2014
    • Recall: No recall issued

    Component(s): Exterior Lighting:Headlights

    Summary: As of July 16, 2014, out of a population of 248,453 subject vehicles, NHTSA received 473 consumer complaints of inoperative head lamp. Many of these complaints indicated that the head lamp harness suffered damage from overheating. After reviewing the complaints, ODI found: -69% (328) alleged that a single head lamp was inoperative. -18% (86) alleged that both head lamps were inoperative but not at the same time. -9% (41) alleged that both head lamps were inoperative but the complaints did not indicate whether the failures had occurred at the same time. -4% (17) alleged that both head lamps were inoperative at the same time. -One additional complaint cited wire harness damage to both sides but did not specify an outage -No crashes or loss of vehicle control were reported. -Any alleged thermal damages were limited to melting of the head lamp harness and the head lamp housing. -A head lamp would intermittently fail to come on or flickers before becoming completely inoperative. For the seventeen complaints that alleged simultaneous failure of both head lamps while attempting to turn them on or while driving, the head lamp failures likely had occurred one at a time. The subject vehicle's head lamps are connected in a parallel circuit and each circuit is fused. Therefore, failure of one head lamp or its harness should not affect the other head lamp operation. Over the last 25 years, ODI has opened numerous defect investigations of the loss of headlamp illumination.Investigations that resulted in safety recalls involved simultaneous loss of illumination from both headlamps. NHTSA does not consider the loss of a single headlamp as presenting an unreasonable safety risk-such failures are readily detectable by the driver while allowing the vehicle to retain forward visibility and conspicuity from the remaining headlamp.There is typically enough time between the failure of the first headlamp and the second during which the vehicle operator can obtain the needed repairs. Based on the information currently available, NHTSA does not believe that the headlamp condition as alleged by the petitioner indicates the likelihood of a safety-related defect that would warrant a formal investigation.Therefore, in view of the need to allocate and prioritize NHTSA's limited resources to best accomplish the agency's safety mission, the petition is denied.Further specifics can be found in the Federal Register Notice ODI complaint ID numbers are referenced on the next page.

  2. INVESTIGATION: Seat Belt Anchor Cable Failure

    NHTSA Defect Investigation #RQ19003

    • Status:
    • Date Opened: May 28, 2019
    • Date Closed: N/A
    • Recall: No recall yet

    Component(s): Seat Belts:Front
    Seat Belts:Front:Anchorage
    Seat Belts:Pretensioner

    Summary: On May 19, 2014, General Motors LLC (GM) notified the Office of Defects Investigation (ODI) that it would conduct Safety Recall 14V266 to address fatigue and separation of the flexible steel cable that connects the front outboard safety belts to the seat-mounted pre-tensioner in 1.4 million Model Year (MY) 2009-2010 Saturn Outlook, 2009-2014 Buick Enclave, GMC Acadia and Chevrolet Traverse (Lambda Platform) vehicles.The remedy was to inspect for signs of damage and replace pre-tensioners as needed.Subsequently, ODI has received 4 Vehicle Owners Questionnaires (VOQ) reporting anchor cable separations with no warning in Model Year (MY) 2010-2014 vehicles after the Recall 14V266 remedy had been applied.ODI has opened a Recall Query to assess the effectiveness of the Recall 14V266 remedy and to evaluate the durability of this architecture in service.The ODI complaints cited above can be viewed at under the following ODI identification numbers: 10967518, 11076704, 11113486, 11144704

  3. INVESTIGATION: Fleet Vehicle Recall Completion Audit

    NHTSA Defect Investigation #AQ10001

    • Status:
    • Date Opened: November 18, 2010
    • Date Closed: December 28, 2015
    • Recall: No recall issued

    Component(s): Unknown Or Other

    Summary: On November 18, 2010, NHTSA's Recall Management Division (RMD) opened an audit query (AQ10-001) to investigate recall remedy completion by rental car companies on safety recall campaigns.It was expected to provide the agency an indication of how completely and how quickly rental car fleets perform necessary recall-related remedies on the vehicles owned and then rented/leased for use on the roadways.RMD queried three (3) major motor vehicle manufacturers (Ford, Chrysler, and General Motors) and requested data regarding completion figures for fifteen (15) discreet safety recalls.Analysis of this data demonstrated that rental car recalls completion was neither complete nor consistent.The rental car companies representing the largest market share in the industry were then queried as to their respective policies for the rental, lease, and sale of vehicles with open recalls.The data and responses from the manufacturers and the rental car companies can be found in the document repository by accessing the ""Associated Documents" link above.In December 2015, Congress enacted the Fixing America's Surface Transportation (FAST) Act.One section of the Act prohibits rental car companies from renting, leasing, or selling motor vehicles subject to open safety recalls.With the passage of the FAST Act and its prohibition, there is no continuing need for the agency to investigate rental car recall completions.Accordingly, this investigation is closed.The agency reserves the right to open any future investigations, including audits of individual recalls, or groups of recalls, or rental car companies, to examine more closely safety recalls performance and completion issues in this area.