GM Recalls Numerous Vehicles Due to Electronic Stability Control Malfunction

Laguna Hills, CA – Nov. 1, 2019 – General Motors recently informed the National Highway Traffic Safety Administration of a recall involving five different vehicle models, all of which share the same defect. The field action includes certain 2015-2020 Chevrolet Suburban, Tahoe and Yukon vehicles, as well as certain 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive.

The Defect

According to the official report regarding this issue filed by GM with the NHTSA, the vehicles involved in the recall contain a defect caused by incorrect axle-ratio calibrations in the vehicles’ electronic-brake control module (EBCM). The flaw can cause the module to incorrectly calculate the speed of a wheel that has a faulted wheel-speed sensor. In specific operating conditions and vehicles, this can trigger the vehicle’s driveline protection system at an inopportune time.

“If a wheel-speed sensor fails in these vehicles, a software error in the vehicle’s EBCM can cause the vehicle’s driveline protection system to activate when (i) the vehicle’s electronic transfer case is set to four-wheel drive or automatic mode, and (ii) the vehicle is driven between the speeds of 41 and 60 MPH,” stated GM’s report on the matter. “If the [system] activates, the driver will experience unintended braking on the wheel on the opposite side of the failed sensor … increasing the risk of a crash.”

Timeline of Events

The first report involving the recall arrived May 21, when a GM dealer submitted a warranty report to the manufacturer involving a 2018 GMC Yukon whose owner reported that, while driving between 40 and 45 MPH, the brakes were involuntarily applied and caused the vehicle to pull leftward. A test of the vehicle confirmed the report, and further investigations revealed all the vehicles which might contain the defect.

“GM and ZF (the EBCM supplier) isolated the condition to certain K2 platform vehicles equipped with 5.3 liter engines, four-wheel drive, and 3.08-ratio rear axles, and to specific operating conditions,”
the chronology report provided by GM explained.

The decision to conduct the recall was made official Oct. 17. 

The Solution

Owners of vehicles involved in the recall will be notified sometime in the near future, although the exact schedule has yet to be set. Authorized dealers will reprogram the EBCM for affected automobiles on behalf of GM, free of charge. Those with further questions may contact Chevrolet customer service at 1 (800) 630-2438, GMC customer service at 1 (800) 462-8782, or the NHTSA hotline at 1 (888) 327-4236.

For more information on additional GM recalls, and other news from the automotive industry, be sure to read MotorSafety.org regularly. 

Sean ReyesGM Recalls Numerous Vehicles Due to Electronic Stability Control Malfunction

General Motors Recalls Various Vehicles Due to Vacuum Pump

Laguna Hills, CA – Sept. 17, 2019 – The possibility that vacuum pumps on various General Motors vehicles may fluctuate in performance over time has caused the company to conduct a vehicle recall. According to the “Frequently Asked Questions” document provided by the manufacturer, “General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2014-2018 model year Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon vehicles.”

The Defect

Within the vehicles that contain this defect, the engine-mounted mechanical vacuum pump output may decrease over time, diminishing the power brake assist and therefore increasing the distance required to stop the vehicle. This ultimately leads to an increased possibility of crash or collision. According to documents filed with the National Highway Traffic Safety Administration, the number of vehicles that potentially contain the defect is greater than 3,450,000, with GM estimating that 2 percent of the autos in that total are almost certainly affected by this issue. The following vehicles make up the group possibly saddled with the vacuum pump problem:

  • Cadillac Escalade 2015-2017
  • Chevrolet Silverado 1500 2014-2018
  • Chevrolet Suburban 2015-2018
  • Chevrolet Tahoe 2015-2018
  • GMC Sierra 1500 2014-2018
  • GMC Yukon 2015-2018

There are certain symptoms that drivers may experience if their car is among those affected by the vacuum pump defect. For instance, they may feel vibration in the brake pedal, or experience a change in the amount of pressure required to depress the brake. Other possible signs of the problem include a ticking noise coming from within the engine compartment) and unintentional activation of the secondary hydraulic brake assist system, according to GM. Finally, the manufacturer noted that if the vacuum level drops to a level below 10 kPA, a “Service Brake Assist” message will appear in the Driver Information Center within five minutes.

GM has determined that while the defect may potentially increase the possibility of collision, all of these vehicles are otherwise safe to drive before undergoing repair of the vacuum pump.

Timeline of Events

According to a chronology provided by GM, the NHTSA opened a preliminary investigation into the subject in November 2018, at which point the manufacturer also began an internal investigation of the same issue. In December, after reviewing the results of both investigations, GM’s Safety & Field Action Decision Authority decided to extend the warranty on vacuum pumps for all the vehicles listed above. Then, in July 2019, GM received results of additional investigation into the subject by the NHTSA, which prompted yet another internal inquiry on the part of the manufacturer.

This final study concluded Aug. 29, 2019, when GM decided to conduct an official recall on the automobiles to provide them with new software calibration. Dealers were notified of the recall in early September 2019, with GM planning to send direct notifications to affected drivers in the near future.

The Solution

Vehicles that contain the defect can be brought to a local dealership, where the dealer will reprogram the electronic brake control module with a new calibration that corrects the problem, should the vacuum assist become depleted. Drivers who own a vehicle involved in the recall will ultimately be notified by mail, but they can check if they are affected in advance by entering their Vehicle Identification Number at the GM Owner Center website, or checking the NHTSA’s website. Additionally, drivers may call the customer service line associated with the make and model of their automobile to find out if their vehicle is affected. There will be no cost to vehicle owners for the repair or remedy.

For more information on this recall or others involving General Motors, visit MotorSafety.org.

Sean ReyesGeneral Motors Recalls Various Vehicles Due to Vacuum Pump

Glass Mix–Up Prompts Recall of GM Vans

Laguna Hills, CA – June 7, 2019 – Over a thousand Chevrolet Express and GMC Savana vehicles with model years 2016 to 2019 produced by General Motors LLC, are due to be recalled as a result of the possible wrong installation of tempered glass in the automobiles’ rear windows. The vans were meant to be installed with laminated glass, which tend to be more resistant to shattering, but instead feature tempered glass. In the event of a serious accident – such as a rollover – the tendency of tempered glass to explode increases the risk of injury. GM intends to send out advisories to owners of these vehicles, urging them to take the automobiles to their nearest GM dealer for a free repair. It’s unclear as of yet when those notifications will begin.

The Defect

According to documentation filed with the National Highway Traffic Safety Administration, General Motors is recalling an estimated 1,159 Chevrolet Express and GMC Savana vans, whose model years range between 2016 and 2019. An internal investigation determined that some of these automobiles may have been installed with tempered glass, described as such because they’re reinforced with heat to strengthen their resilience. While tempered glass has more safety properties than standard glass, laminated glass – the type the vehicles are meant to have – has an extra layer of vinyl, which enables the glass to hold its shape more effectively in the event of a crash. This also helps prevent the potential of ejection from the vehicle should motorists not have their seatbelts on during an accident.

Because the vehicles in question do not comply with Number 226 of the government’s Federal Motor Vehicle Safety Standard, which relates to ejection mitigation, GM has decided to pull the 1,150+ vans from the marketplace so that tempered glass can be swapped out with laminated where necessary.

Timeline of Events

The flaw in question came to the attention of General Motors March 18 of this year, when an engineer for the company happened to notice that both a Chevrolet Express and GMC Savana had rear-quarter windows installed with tempered glass instead of the correct laminated type. The engineer made the company aware of the flaw through its Speak Up For Safety, which was formally launched in 2014 and serves as a “see something say something” outlet for GM employees when something is amiss.

A formal investigation was launched roughly a week after the engineer first spotted the flaw, and concluded May 13. GM’s Field Action Decision Authority determined as a result of the findings that some of the cars in question may indeed fail to comply with the ejection mitigation rule established by NHTSA and recommended a recall.

The Solution

Although GM has not yet determined when notifications will be distributed, it intends to inform owners of 2016-2019 Chevrolet Express and GMC Savana to bring their automobiles back to any GM dealer so the proper glass can be installed. The fix will come at no charge to owners. For more information, visit MotorSafety.org or contact GM’s customer service department at 1-586-596-1733. The recall number is N192218960.

Sean ReyesGlass Mix–Up Prompts Recall of GM Vans

GM Recalls GMC Sierra 3500 And Chevrolet Silverado 3500 Trucks For Fueling Issue

 

Laguna Hills, CA – March 27, 2019 – General Motors is recalling certain 2016-2018 GMC Sierra 3500 and Chevrolet Silverado 3500 pickup trucks equipped with gasoline engines and dual fuel tanks. If the fuel level sensor in the front tank becomes stuck in a low-level position, the fuel transfer pump may continue to pump fuel from the rear tank to the front tank even after it is full, causing an overpressure condition in the front tank. As many as 18,574 vehicles may be affected.

The Defect

According to the National Highway Traffic Safety Administration report on this problem, the fuel level sensor in the front tank may stick in a low-level position, allowing the rear tank to overfill the front tank. In rare circumstances, the front fuel tank could expand and contact a moving drive shaft, which could create a hole in the front fuel tank and allow fuel to leak. If this happens in the presence of an ignition source, a fire could occur. Customers may hear a grinding or knocking noise if the overpressurized front fuel tank contacts the moving drive shaft.

Timeline of Events

GM originally recalled certain 2011-15 heavy duty trucks equipped with gas engines and dual fuel tanks for the same issue starting Oct. 12, 2017. Although the automaker saw no indications at that time that the condition existed in similar trucks built after 2015, it began to monitor field data for later model years. GM conducted an initial review April 16, 2018 and a subsequent review Oct. 28.

GM’s Open Investigation Review board looked at potentially relevant new field reports identified through the monitoring process Nov. 28 and decided to open an investigation into applicable 2016-18 trucks.

The investigator reviewed the new field data with GM’s subject matter experts. It was found that the problem may be present in vehicles built before the carmaker began using a new low pressure fuel pump in October 2017, but there was no evidence that the condition existed in vehicles equipped with the new fuel pump. As with the previous recall, the issue was limited to heavy duty trucks with gas engines and the dual-tank option, and the only trucks produced with those options were the 3500 series chassis-cab vehicles.

The Open Investigation Review board reviewed the results of the investigation Jan. 28, 2019. As a result, GM’s Safety & Field Action Decision Authority decided Jan. 31 to launch a safety recall for heavy duty trucks built between 2016 and 2018, before GM began using the new low-pressure fuel pump.

The Solution

The recall began March 5, 2019 when owners were sent an interim notification. A second notification will be issued when the remedy becomes available. Dealers will replace the rear tank fuel pump module free of charge. Dealers will also inspect the front tank and replace if necessary. Courtesy transportation is available for customers whose vehicles are involved in this recall and are within the warranty coverage period. GM’s number for this recall is N182204190.

Owners may also contact the NHTSA Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov. The NHTSA Campaign Number for this recall is 19V088000.

Sean ReyesGM Recalls GMC Sierra 3500 And Chevrolet Silverado 3500 Trucks For Fueling Issue

GM Recalls More Than 150 Vehicles for Damaged Airbag Modules

Laguna Hills, CA – December 27, 2018 – General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500 Crew Cab and GMC Sierra 1500 Crew Cab vehicles due to potential issues with airbag modules. The potential number of units affected is 154.

The Defect

According to the NHTSA notification, these vehicles have a retainer ring within the passenger-side airbag module that may have been damaged during the assembly process. This damage could allow gas to escape during airbag inflation and deployment, which would reduce the amount of gas available to fill the airbag. Since the passenger-side frontal air bag module in affected vehicles may have been damaged during assembly, possibly resulting in the air bag not inflating properly in the event of a crash, the risk of injury is significantly increased if a crash does occur.

Timeline of Events

On December 6, 2018, the manufacturer notified Gm of the issue. On December 17, 2018, General Motors LLC (GM) informed the NHTSA. On December 26, 2018, the recall began. This recall is not connected to the widespread Takata airbag recall which has been ongoing, and affected certain Saab, Chevrolet, Pontiac, Saturn and GMC models.

The Solution

GM will notify owners, and dealers will replace the passenger side air bag module, free of charge. The recall began on December 26, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020 and GMC customer service at 1-800-462-8782. GM’s number for this recall is N182198820.

Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the warranty coverage period. Owners may also call the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153). The NHTSA Campaign Number for this recall is 18V-868.

Sean ReyesGM Recalls More Than 150 Vehicles for Damaged Airbag Modules

GM Recalls over One Million 2015 Vehicles Due to Faulty Steering Assist

 

Lilburn, Georgia – September 22, 2018: General Motors has discovered a defect which relates to motor vehicle safety exists in certain 2015 model year Chevrolet Silverado LD, Suburban, and Tahoe vehicles; GMC Sierra LD and Yukon vehicles; and Cadillac Escalade vehicles. GM has issued a recall for over one million vehicles.

The Defect

According to the NHTSA Safety Recall Report, the affected vehicles may experience a temporary loss of EPS assist, followed by a sudden return of EPS assist. This is most likely to happen during low-speed turning maneuvers. The loss and sudden return of EPS assist typically occurs within a 1 second period. The steering malfunction is caused by an electrical/software issue.

The danger lies in the fact that if EPS assist is lost and suddenly returned, the driver could have difficulty steering the vehicle. The likelihood of a crash is increased, especially at low speeds. Low speed turns can cause temporary low voltage conditions, and if system voltage drops below 8.8 volts for more than 1 second, EPS assist is disabled. When voltage returns to 9 volts for a minimum of 40 milliseconds, EPS assist returns.

If power steering assist is lost a driver information center message may alert the driver to an EPS problem, and other electrical sub-systems may shut down just prior to or at the same time as the EPS event, which can cause disruption to operation of the radio, stabilitrack, the DIC, chimes, door-lock cycling, air conditioning, or cruise control.

Timeline of Events

In late June 2018, an increase in field reports and customer complaints about EPS issues led GM to open a safety investigation into loss of EPS in the subject vehicles.  GM’s safety investigator and engineering-analysis experts determined the loss-of-EPS issues was caused by the same electrical issue discovered in trucks that GM recalled in 2017. GM’s Safety Field Action Decision Authority subsequently chose to conduct a safety recall.

The Solution

According to an NHTSA FAQ published for the recall, customers who own a vehicle involved in the field action will be notified by mail by General Motors, but the exact date the recall will begin is not yet set and the manufacture has not published a notification schedule.

Dealers will perform a reflash of the EPS module software. The inspection/repair will be done at no cost to the customer, and is available at Cadillac, Chevrolet and GMC dealers. Customers are strongly urged to repair their vehicle as soon as possible.

Courtesy transportation is available for customers whose vehicles are involved in the recall, and whose vehicles are still within the warranty coverage period for the warranty which is associated with the recall.

Owners may contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or check their Vehicle Identification Number (VIN) for field actions in GM Owner Center at my.gm.com/recalls or via NHTSA’s website at vinrcl.safercar.gov/vin/.

Owners may also contact manufactures directly: Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020 and GMC customer service at 1-800-462-8782. GM’s number for this recall is 18289.

Sean ReyesGM Recalls over One Million 2015 Vehicles Due to Faulty Steering Assist

GM recalls vehicles with defective fuel system parts

 

Warren, Mich. – June 27, 2018 – General Motors has recalled almost 850 vehicles potentially equipped with defective fuel system components, according to documentation submitted to the National Highway Transportation Safety Administration. The campaign affects vehicles across multiple brands, including:

  • 2018 Buick LaCrosse sedans produced March 27, 2018, and April 20, 2018.
  • 2018 Cadillac ATS sedans produced March 20, 2018.
  • 2018 Chevrolet Equinox sport utility vehicles produced between March 26, 2018, and April 20, 2018.
  • 2018 Chevrolet Colorado pickup trucks produced March 22, 2018, and April 27, 2018.
  • 2018 Chevrolet Malibu sedans produced between April 19, 2018, and April 27, 2018.
  • 2018 GMC Arcadia sport utility vehicles produced between April 5, 2018, and April 23, 2018.
  • 2018 GMC Canyon pickup trucks produced between March 23, 2018, and April 24, 2018.

GM suspects all of the vehicles referenced in the recall contain the defective components.

The Defect

Affected vehicles contain high-pressure fuel pump’s whose housings are not properly welded nearby flanges. These faulty welds could crack over time, resulting in fuel pump flange separation. Should this occur, the pump may oscillate within the engine compartment, leading to fuel leakage and, in some cases, fire. This defect therefore poses a serious risk to owners. However, GM has yet to receive field reports connecting the problematic parts to any accidents or injuries.

Timeline of Events

On April 25, 2018, Robert Bosch LLC, the vendor that supplied the fuel pumps installed in the recalled vehicles, contacted GM to disclose the potential existence of problematic housing and flange welds. The American automaker opened an official investigation into the issue May 5, 2018. While this inquiry uncovered zero occurrences of fuel leakage, GM determined, via Bosch engineering analysis, that the faulty fuel pump welds could fracture and lay the groundwork for this dangerous outcome.

Members of the GM Safety Field Action Decision Authority conducted a final review May 24, 2018, and determined that a voluntary safety recall was necessary.

GM notified dealers of the impending action May 31, 2018.

The Solution

The car manufacturer has yet to develop a workable solution, according to an FAQ document. There is therefore no timetable for owner notification. However, GM is working with Bosch to create a cost-free fix. Owners in need of assistance prior to the start of the recall can connect with GM customer service personnel by calling (866) 522-9559. Individuals in possession of recalled vehicles can also reach out to the NHTSA directly using its Vehicle Safety Hotline at (888) 327-4236.

Sean ReyesGM recalls vehicles with defective fuel system parts

GM recalls vehicles with defective safety equipment

Warren, Mich. – General Motors has recalled almost 13,000 vehicles potentially equipped with defective safety equipment, according to documentation submitted to the National Highway Transportation Safety Administration. The campaign affects multiple models across three GM brands, including:
  • 2009-2018 Chevrolet Express passenger vans produced between Sept. 9, 2008, and March 23, 2018.
  • 2009-2014 Chevrolet Silverado Heavy Duty pickup trucks produced between Oct. 13, 2008, and Nov. 6, 2013.
  • 2009 GMC 5000, 6000, 7000 and 8000 Series pickup trucks produced between Aug. 20, 2008, and July 31, 2009.
  • 2009-2018 GMC Savana passenger vans produced between Sept. 12, 2008, and March 10, 2018.
  • 2009 Isuzu F Series diesel commercial trucks produced between Aug. 20, 2008, and Dec. 19, 2008.
GM suspects all of the vehicles involved in the action contain the defective components.
The Defect
Affected vehicles come with portal fire extinguishers that clog easily may become inoperable in the event of an engine fire. Additionally, individuals who attempt to unclog them by force may sustain injury due to nozzle detachment. As a result, these components pose a serious hazard to occupants. However, GM has yet to receive field reports linking these fixtures to any accidents or injuries.
Timeline of Events
Personnel from the Isuzu Technical Center of America on Nov. 4, 2017, learned that fire extinguisher supplier Kidde had recalled a large number of defective products, according to an internal chronology document given to the NHTSA. Isuzu quickly reviewed its production records and found that many vehicles, including some Chevrolet trucks, included these components. On Nov. 14, the brand issued a voluntary recall. Three days later, GM began reviewing historic production records dating back decades to see if other past models had been equipped with the defective extinguishers, some of which could have been used in vehicles assembled in the 1990s and early 2000s. The automaker conducted this review over the course of nearly three months, evaluating production documents dating from 1992 to the present.
By January 2018, GM had identified approximately 100 different fire extinguisher models used across several brands. Engineers managed to trim this number to 13 – all of which Kidde manufactured – by March. Members of the GM Open Investigation Review assessed this data and transferred the case to the Safety and Field Action Decision Authority, which chose to conduct a voluntary safety recall April 19. GM notified dealers of the forthcoming action April 26.
The Solution
GM intends to notify owners via first-class mail when replacement parts are available, according to an NHTSA recall acknowledgement document. By this point, owners will need to contact Kidde directly to receive replacement extinguishers free of charge. Owners in need of additional assistance prior to or after the start of the recall can contact GM customer personnel at (800) 462-8782. Callers should use the internal recall identification number 18146. Owners can also reach out to the NHTSA directly using the agency’s Vehicle Safety Hotline at (888) 327-4236.
Sean ReyesGM recalls vehicles with defective safety equipment

GM recalls vehicles with defective fuel sensors

 

Warren, Mich. – Nov. 21, 2017 – General Motors has recalled more than 35,000 vehicles potentially equipped with defective fuel tank sensors, according to documentation submitted to the National Highway Transportation Safety Administration. The campaign affects 2011-2015 Chevrolet Silverado 3500 and GMC Sierra 3500 pickup trucks produced between May 24, 2010 and Sept. 30, 2015. GM believes all of the vehicles named in the recall contain the defective parts.

The Defect

Affected models include dual fuel tank assemblies. The first of these tanks includes a defective fuel-level sensor that sometimes stalls in the lowest position, offering an inaccurate reading and increasing the likelihood of overfilling and tank expansion. This, in turn, could then allow the tank to come into contact with the moving driveshaft, creating a hole and causing fuel leakage. As a result, the defect poses a serious threat to occupants. However, GM has received no reports linking the defective component to any accidents or injuries thus far.

Timeline of Events

In April 2017, the NHTSA notified GM about a vehicle owner questionnaire it had received that detailed an instance of fuel leakage in a 2015 GMC Silverado 3500 pickup. One month later, the GM engineers familiar with the VOQ submitted a report via the company’s Speak Up For Safety program. The automaker launched an internal investigation in response to the submission on May 16.

Over the course of May, June and July, engineers evaluated field data to pinpoint the root cause of the leakage, which apparently initiated in the front fuel tank. On July 27, GM met with the NHTSA to review the results of the three-month inquiry. The two parties came to the conclusion that the fuel leaks were not developing in vehicles manufactured after 2015. In August, GM completed a design failure mode and affect analysis, and determined that the problem was confined to Chevrolet Silverado 3500 and GMC Sierra 3500 trucks equipped with dual fuel tanks. These vehicles were manufactured without beds and other conventional pickup features, as they were intended for commercial use or modification.

GM personnel reviewed the matter in two separate sessions on Aug. 28 and Sept. 25. The NHTSA revaluated the defect on Oct. 2 as well. The GM Safety and Field Action Decision Authority looked over the issue Oct. 12 and decided to conduct a voluntary safety recall. GM notified dealers Oct. 19.

The Solution

GM has directed dealers to inspect the front fuel tanks in the affected models and either replace the rear tank fuel pumps or updated the fuel sensor software, according to an NHTSA recall acknowledgement document. These fixes, which will be ready for implementation in early 2018, are to be executed free of charge. The automaker plans send an initial notification to owners via first-class mail Dec. 18 and follow-up document in February 2018, when the remedy is ready for implementation. Owners in need of more immediate assistance can contact Chevrolet customer service at (800) 222-1020 or GMC customer service at (800) 462-8782. Callers should use the GM recall identification number 17399.

Owners can also contact the NHTSA directly using the toll-free Vehicle Safety Hotline at (888) 3274236.

adminGM recalls vehicles with defective fuel sensors

GM recalls vehicles with defective air bags

 

Warren, Mich. – Nov. 9, 2017 – General Motors has recalled more than one-dozen vehicles potentially equipped with defective air bag assemblies, according to documentation filed with the National Highway Transportation Safety Administration. The campaign affects multiple models across two brands, including:

  • 2015-2016 Chevrolet Colorado pickup tucks produced between Oct. 10, 2014 and Feb. 6, 2016.
  • 2016 Chevrolet Volt electric sedans produced between Oct. 16 and Dec. 14, 2015.
  • 2015-2016 GMC Canyon pickup trucks produced between Oct. 13, 2014 and Aug. 2, 2015.

GM suspects that all of the vehicles referenced in this recall contain the defect components.

The Defect

Affected vehicles include driver-side front air bag assemblies with second-stage inflators that may malfunction upon deployment, thus failing to completely fill the corresponding air bags or do so within the regulated time span. This poses a serious risk to drivers involved in collisions, as they are less protected and therefore more likely to sustain injuries upon impact. However, GM has yet to receive reports connecting the defective air bag assemblies to any injuries or accidents.

Timeline of Events

In March 2016, GM recalled more than 1,500 vehicles after its air bag supplier, Key Safety Systems, discovered that some of its shipped frontal air bag assemblies failed to meet cold-weather fill-time requirements, according to an NHTSA Safety Recall Report. Specifically, these fixtures came equipped with second-stage inflators without the chemical mixture required to effectively facilitate deployment and fill frontal air bags as much or as quickly as required by law.

In the months following the March 2016 recall, KSS evaluated its inflators to determine whether mistakes were made during assembly or problems developed due to long-term vehicle use. During this analysis, the parts provider discovered another batch of defective filters that had been shipped to GM and installed in vehicles not referenced in the March 2016 action. KSS notified GM of the issue May 4, 2017. Approximately six days later, the automaker opened an internal investigation to better understand the problem.

Over the next four months, GM and KSS worked together to analyze the filters received during the March 2016 recall. This data allowed KSS to improve the accuracy of its existing strategy for detecting incorrectly assembled inflators, which involved the evaluation of component weight. The parts provider used this methodology to find defective inflators installed in non-recalled GM vehicles.

With this new information in hand, the GM Safety and Field Action Decision Authority elected to issue a voluntary safety recall Sept. 28. The car manufacturer notified dealers Oct. 5.

The Solution

GM has directed dealers to replace the driver-side frontal air bag assemblies in affected models free of charge, according to an NHTSA recall acknowledgment document. The automaker plans to notify owners via first-class mail Dec. 4. Those in need of more immediate assistance can contact Chevrolet customer service at (800) 222-1020 or GMC customer service at (800) 462-8782. Callers should use the internal GM recall identification number 17387. Owners can also reach out the NHTSA directly using its toll-free Vehicle Safety Hotline at (888) 327-4236.

adminGM recalls vehicles with defective air bags