GM recalls vehicles with defective passenger presence systems


Warren, Mich. – July 13, 2018 – General Motors has recalled more than five dozen vehicles potentially equipped with defective passenger presence systems, according to documentation submitted to the National Highway Transportation Safety Administration.

The campaign affects 2016-2018 Chevrolet Malibu sedans produced between Nov. 20, 2015, and Sept. 8, 2017. The American automaker suspects all of the vehicles involved in the action contain the defective components.

The Defect

Affected models contain replacement PPS assemblies that were installed as part of an earlier service initiative. However, these features, which are designed to detect seated passengers and signal the air bags to deploy in the event of an accident, contain miscalibrated parts.

These flawed components may cause the PPS software to misclassify children or smaller adults, inhibiting air bag functionality during collisions. The defect therefore poses a serious safety hazard to passengers. That said, GM has yet to receive reports connecting the problematic PPS assemblies to any accidents or injuries.

Timeline of Events

On Feb. 8, 2018, a GM engineer managing the PPS replacement initiative noticed that the part numbers for a number of the substitute PPS assemblies installed in 2016-2018 Chevrolet Malibu sedans were incorrect. This error indicated that some dealers may have installed the wrong replacement parts in some vehicles – specifically, PPS software not calibrated to the correct vehicle seat position.

Five days later, the design release engineer who discovered the issue notified the GM corporate office via the company’s Speak Up For Safety program. The engineer then began releasing work orders in an effort to address the issue proactively and did so until March 14, 2018.

On March 16, 2018, GM launched an official internal investigation. The automaker found that the GM engineering team had released two replacement PPS assemblies as part of the earlier repair initiative: one made for vehicles with vented seats and another made for vehicles with non-vented seats. Due to a part numbering mishap, these two components were mislabeled, meaning a number of dealers had likely installed incompatible parts in numerous 2016-2018 Chevrolet Malibu sedans and had unknowingly created a serious safety hazard.

GM evaluated the issue May 25, 2018, and decided that a voluntary safety recall was necessary.

The automaker informed dealers June 14, 2018.

The Solution

GM has directed dealers to replace the front PPS assemblies in affected vehicles free of charge, according to an NHTSA recall acknowledgment document. However, the car manufacturer has yet to release an owner notification timetable.

Owners in need of assistance can speak with GM customer service personnel by calling (800) 222-1020. Callers should use the internal recall identification number 18208. 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 passenger presence systems

GM recalls vehicles over software update error


Warren, Mich. – June 29, 2018 – General Motors has recalled an estimated 3,233 vehicles after a recent update to the Hybrid Powertrain Control Module 2 could potentially disable the cell balancing function and result in a low-voltage condition. The recall affects select 2013 Chevrolet Volts, according to documents from the National Highway Transportation Safety Administration. The estimated figure of cars with this particular defect is 2 percent.

The Defect

Vehicles that received a software updated in a service procedure from a dealer may contain an error in the software update that could prevent the batteries from balancing the voltage in singular battery cells. Under certain circumstances, this may result in a low-voltage condition in one or multiple battery cells. The vehicle will notify drivers if the battery cells fall below a certain level and if the driver continues on the road after entering reduced power mode, the vehicle may lose propulsion. This incident may increase the risk of crash and injury.

Timeline of Events

A GM engineer sent in a Speak Up For Safety report on May 11 after finding that a software update used on select 2013 model-year Chevrolet Volt vehicles contained an error that could potentially prevent batteries in some of these vehicles from effectively balancing the voltage among individual battery cells, according to internal reports. Following this report’s submission, GM launched an investigation, where the investigator reviewed field data, which demonstrated elevated rates of the condition in the field for vehicles with this update.

Afterward, GM’s Open Investigation Review board reviewed the investigation June 6, and the GM’s Safety and Field Action Decision Authority ultimately decided further action was necessary and issued a safety recall for these vehicles on June 7.

GM notified dealers of this safety recall June 14 and the National Highway Traffic Safety Administration June 20. Owners will receive recall details and dates will available.

The Solution

According to an internal communication, GM will notify drivers, while dealers will reprogram the Vehicle Interface Control Module module at no cost to the cars’ owners. A notification schedule has not yet been provided, but customers who own this vehicle will be notified by mail or can check their Vehicle Identification Number on GM’s website. Owners who want further information can contact Chevrolet customer service at (800)-222-1020. They can also call the NHTSA’s Vehicle Safety Hotline at (888)-327-4236.

Sean ReyesGM recalls vehicles over software update error

GM recalls vehicles with defective engine software


Warren, Mich. – June 27, 2018 – General Motors has recalled almost 500 vehicles potentially equipped with defective engine software, according to documentation submitted to the National Highway Transportation Safety Administration. The campaign affects 2019 Chevrolet Corvette ZR1 sports cars manufactured between Dec. 8, 2017, and May 31, 2018. The American automakers suspects just 1 percent of the models involved in the action contain the defective software.

The Defect

Affected vehicles come with sensing diagnostic module software that may fail when exposed to hard braking or extreme acceleration. In the event of SDM failure, crash sensing and air bag deployment functionality may be inhibited. This defect therefore poses a serious safety risk to occupants. However, GM has yet to receive field reports connecting the defective software to any accidents or injuries.

Owners in possession of vehicles that have experience SDM failure will not receive airbag readiness or diver information center notifications.

Timeline of Events

GM personnel on April 30, 2018, hosted a media demonstration in Atlanta, during which a 2019 Chevrolet Corvette ZR1 was subjected to race-like driving conditions. Following the event, GM engineers assessed the vehicle and found that its SDM software was not operating properly. These technical specialists brought the issue to the attention of the automaker May 3, 2018, via an internal Speak Up For Safety report. GM opened an investigation in response May 8, 2018.

During this inquiry, the engineering team at the GM Proving Grounds in Milford, Michigan conducted road tests involving hard braking and extreme acceleration. Following these trials, the group reviewed vehicle performance data and concluded that such maneuvers caused SDM overstress, which in turn led to complete software failure.

The GM Open Investigation Review evaluated the the matter May 21, 2018, before sending it to the Safety Field Action Decision Authority. The SFADA ultimately decided that a voluntary recall was necessary and initiated such action May 24, 2018.

GM notified dealers of the forthcoming campaign May 31, 2018.

The Solution

The automaker has directed dealers to reprogram the SDM software in affected models free of charge, according to an internal communication. GM intends to notify owners via first-class mail June 29, 2018. Owners in need of more immediate assistance prior to the start of the recall can contact GM customer service at (866) 522-9559. They can also connect with the NHTSA directly using its Vehicle Safety Hotline at (888) 327-4236.

Sean ReyesGM recalls vehicles with defective engine software

Chevrolet Volt vehicles recalled for battery charging issue

Warren, MI – June 14, 2018 – General Motors (NYSE:GM) has recalled 4,606 hybrid vehicles, due to a battery charging issue. Low voltage may cause the vehicle to lose power, increasing the risk of a crash. The recall includes Chevrolet Volt 2013 sedans. 

Recall summary  

Due to a faulty software update, the recalled vehicles have a defect that may prevent them from properly charging the battery cells.  This may cause the vehicle to operate at lower speeds and with less acceleration. If the car continues to be driven in this reduced power mode, it will stall, increasing the risk of an injury or a crash.

The software in question runs on the Hybrid Powertrain Control Module 2 (HPCM2), which “controls almost everything the engine does” and ensures that each cell receives the proper amount of charge.


If the Volt loses power, the driver will not be able to accelerate to merge into traffic or get out of the way to avoid collision. The car may block traffic and get hit by other vehicles.

This may result in the car occupants, other drivers and pedestrians injured or killed.

The repair

To fix the issue, dealers will need to reprogram the Hybrid Powertrain Control Module 2. The repair is free of charge. This Chevy recall began on July 24, 2018.

Is your vehicle part of this recall?

As of April 2020 – the last date for which information is available – over 4,000 cars have been fixed in this Chevrolet recall. To see if your Volt is among those that still need to be repaired, use MotorSafety’s free vehicle lookup tool.

Note: March 4, 2021

We have noticed a large number of readers are interested in this recall. For that reason, we have rewritten it to include the best, most up-to-date information.

Ken BoydChevrolet Volt vehicles recalled for battery charging issue

GM recalls SUVs with defective drive shafts

Recall Masters -August 31, 2017

GM recalls SUVs with defective drive shafts

General Motors has recalled a number of sport utility vehicles believed to be equipped with defective drive shafts, according to documentation filed with the National Highway Transportation Safety Administration. The campaign affects 2017-2018 GMC Arcadia, 2018 GMC Terrain and 2018 Chevrolet Equinox models. The automaker estimates that 3 percent of the vehicles have problematic drive shafts.
The Defect
Models referenced in the recall could contain front right intermediate drive shaft assemblies prone to fracture and separation. Engineers have traced the issue to the parts manufacturer Nexteer, which failed to use properly calibrated ultrasonic scanning equipment when performing quality checks.
The defect poses a serious safety hazard to occupants, as vehicles with damaged drive shafts may lose power during operation or roll away when stopped without the parking brake engaged. However, GM has yet to receive reports of accidents or injuries connected to the defect…

Read the entire article on the Recall Masters website

Sean ReyesGM recalls SUVs with defective drive shafts

GM Recalls Sports Cars Due to Air Bag Defect

Warren, M.I. – Feb. 21, 2017 – General Motors Co. has recalled more than 91,000 Pontiac and Saturn sports cars with defective air bags. The recall affects Pontiac Solstice coupes and convertibles, as well as Saturn Sky roadsters produced between 2005 and 2009, according to documentation from the National Highway Transportation Safety Administration.

The Defect

Both vehicles are equipped with passenger air bag suppression systems that leverage seat sensors to determine if passenger safety features should be deployed in the event of a crash. The sensors used in these systems can bend and become damaged over time with repeated passenger contact. In some cases, these devices can malfunction completely and inhibit air bag deployment, even when occupants are present. This presents serious safety risks, as passengers could be left without protection when an accident occurs.

Timeline of Events

In April 2016, an owner submitted a defect petition requesting that GM investigate the PPS systems in Solstice and Sky models. Roughly one month later, the automaker opened an internal inquiry. The NHTSA made GM aware of additional complaints soon after and, in July, solicited warranty information for potentially vehicles. On Dec. 15, GM launched an official investigation. Engineers met with NHTSA officials throughout December and January 2017. The automaker’s Safety Field Action Decision Authority initiated a recall Jan. 19 and notified dealers Jan. 26.

The Solution

GM has not yet developed a workable solution to the problem, according to documents filed with the NHTSA. There is no timetable for when a solution might be available but dealers have been advised to address customer concerns. Consequently, the automaker has updated its Global Warranty Management system so dealership personnel can effectively respond to individuals who may own affected vehicles. GM also advises Solstice and Sky owners to contact customer service for additional assistance.

adminGM Recalls Sports Cars Due to Air Bag Defect

GM Recalls Buick Verano Vehicles for Fuel Line Problems

Warren, Mich. — September 27, 2016 — In recent GM recall news, some 2016 Buick Verano autos may be subject to a fire hazard due to fuel line defects. The Part 573 Safety Recall Report from the National Highway Traffic Safety Administration website stated that affected autos have a 2.0 liter turbocharged engine and were manufactured between Feb. 16 and May 12, 2016.

This source said that fuel lines in these Buicks could fail if they make contact with heated sections of the engine. This could lead to a fire if the lines in question are worn away enough, causing fuel to leak out. A total of 189 vehicles are potentially involved in this action, and all 100 percent of them are estimated to have the defect.

The first engine fire associated with this problem occurred June 20 in the car of a GM employee, according to the Report. As of Aug. 10, this was the only fire caused by this defect that had been seen in the field.

Dealer Notification was planned for Aug. 10, and the remedy requires the dealer to replace the fuel line assembly entirely. Since the defect comes from improperly assembled fuel lines, the new replacement assemblies will have the proper engine compartment routing. GM found out that the vehicle issue stemmed from “poor operator training” on July 18.

A recall bulletin from the manufacturer listed all of the parts needed to complete the recall’s system replacement. This list includes eight parts total, such as a fuel-feed pipe and charge air cooler inlet air tube adapter seal for each vehicle.

adminGM Recalls Buick Verano Vehicles for Fuel Line Problems

Chance of Fire Prompts General Motors Recalls

Warren, Mich. — September 13, 2016 — Wiring issues may make a fire more likely to break out in one Buick model. Although there is no remedy scheduled as of this writing, one of the more recent General Motors recalls addresses this problem. The component manufacturer in this recall is Lear Corporation, based in Germany.

The official Part 573 Safety Recall Report on the National Highway Traffic Safety Administration website said that the recall potentially involves 42,984 2011 Buick Regals. A full 100 percent of these are thought to have a wiring harness problem that could wear down the wires themselves.

This chafing could potentially lead to a short circuit, which in turn could start a fire within the vehicle. In addition, the report cited other possible side effects, such as smoke, sparks and flickering instrument-panel lights. Despite this, it did not list any signs to be taken as “identification” of the defect.

The fix requires dealers to repair faulty wiring, if needed, after inspecting and securing the harness. There is also no apparent danger of wire chafing in similar vehicles manufactured after 2011 in Russelheim.

Though the decision to conduct the recall only came June 29, it dates back to Dec. 21, 2015. On that date, the source said, customer reports of fire led to a a Speak Up for Safety report.

A July 7 notice for dealers said that the parts necessary to conduct this recall fix were not currently available: dealers can only proceed once they are. This statement also announced that the Global Warranty Management system would update to reflect the new recall, as a way for dealers to prepare to address owner concerns.

adminChance of Fire Prompts General Motors Recalls

Welding Issue Triggers GM Recall

Warren, MI — January 13, 2016 — Three different models of 2016 vehicles are included in one of the more recent GM recalls, with a manufacturer’s report date of December 9. This action concerns 2,633 potentially affected vehicle models, all of which could include an improperly welded seat that leaves occupants in danger during a crash. The vehicles have faulty third row lower seat frame welding as a result of problems with the robot welder at the supplier, Michigan-based Bridgewater Interiors.

Just 1 percent of the vehicle population was estimated to have this defect.

The issue was initially discovered November 2015, the same month in which the recalled vehicles were produced. According to a safety recall report also available from the organization, the welder working on the vehicles had a “defective servo motor.” Since November 2012, newly produced versions of these models have been welded by robots with the correct motors.

Dealers were notified on December 9, and just 1 percent of the vehicle population was estimated to have this defect. The report explained the actions dealers were instructed to take to correct this problem.

“Dealers will inspect the third row left side lower seat frame and, if necessary, replace the lower seat frame,” the document stated. “Vehicles built during the affected build date were inspected to identify and replace seat frames built by the defective robot welder,” it added.

In an instructional recall bulletin, General Motors noted that “only approximately 11 involved vehicles” would require a seat frame replacement. As such, it emphasized that dealers order parts only as they need them, to make the most out of the limited replacements in stock.

adminWelding Issue Triggers GM Recall

New ignition switch problem leads to GM recall [Video]

A new GM recall concerns ignition switch problems in some Chevrolet Silverado and Suburban vehicles, as well as GMC Sierras and Tahoe SUVs. Fortunately, the problem appears to have been detected early on, with only five accidental shutoffs attributed to it and just over 3,000 autos recalled. In affected vehicles, the cars can get stuck in the ignition when interior temperatures are high.

The lock cylinder in these cars could accidentally be shifted into “accessory” mode, making the truck less safe to drive and leaving it more defenseless during crashes. There have been no injuries reported yet connected to these issues, and is supposedly unrelated to a previous GM ignition switch recall.

The remedy for this issue involves changing out the housing around the ignition area.

Thank you far watching, and check back for the latest news on GM recalls.

adminNew ignition switch problem leads to GM recall [Video]