Tag Archives: software update

Unexpected ABS Activation In 2024 Acura ZDX All-Wheel Drive Vehicles

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In a concerning development for Acura ZDX All-Wheel Drive owners, a potentially dangerous issue has been identified within certain 2024 models. The problem, rooted in the vehicle’s anti-lock brake system (ABS), could lead to unexpected activation of the ABS, causing a release of brake pressure that significantly diminishes braking performance. This defect poses an increased risk of accidents, particularly during specific low-speed braking events.

The problem first came to light in July 2024 when Honda, Acura’s parent company, was notified by General Motors (GM) about the issue. GM had received reports of two minor accidents, both allegedly linked to a sudden loss of braking, which were suspected to be caused by a software glitch in the ABS. In addition to these accidents, GM also reported a field complaint regarding the issue, though no accident had occurred in that instance.

Honda quickly launched an investigation into the matter. Upon closer examination, it was discovered that the issue was indeed related to a defect in the anti-lock brake system. Specifically, during certain braking events at speeds below 25 mph on dry surfaces, the ABS may activate with undue sensitivity. If this occurs and a specific sequence of wheel movements follows, the ABS will continue to release brake pressure in the service brake system. The result is a dramatic reduction in stopping performance, or in some cases, a complete failure of the brakes, greatly increasing the risk of a crash.

After confirming the defect, Honda determined that it posed a significant safety risk and initiated a safety recall. The company has emphasized that, as of now, no warranty claims, field reports, or incidents involving injuries or crashes related to this defect have been reported in Acura vehicles.

Affected vehicle owners will be notified of the recall and instructed to perform an iN VIN status inquiry to verify if their vehicle is eligible for the update. This notification is crucial for ensuring that all potentially affected vehicles, including those in new or used vehicle inventories, are addressed promptly.

To resolve this issue, Acura will be updating the electronic brake control module software. This update will be delivered either through an over-the-air (OTA) update or by visiting an Acura dealership. The update is designed to correct the sensitivity of the ABS, preventing the unexpected release of brake pressure and restoring normal braking function.

Acura has designated this recall with the internal number UJE, while the National Highway Traffic Safety Administration (NHTSA) has assigned it the campaign number 24VC-614.

Owners of the 2024 Acura ZDX All-Wheel Drive are urged to check whether their vehicle is affected by this recall. If you own one of these vehicles, it’s important to respond to the recall notice and ensure that the necessary software update is performed as soon as possible. This proactive step will help avoid the risks associated with the ABS defect and ensure your vehicle operates safely.

2021 Jeep Wrangler and Gladiator PCM Software Update

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A select number of Jeep Wrangler and Jeep Gladiator vehicles that were previously repaired under NHTSA recall number 23V-116 are now slated for a crucial Powertrain Control Module (PCM) software update.

In February 2023, FCA US LLC’s Vehicle Regulations Committee launched a safety recall (19A) targeting specific 2018-2023 Jeep Wrangler and 2020-2023 Jeep Gladiator models with manual transmissions. This recall was triggered by reports of potential overheating of the clutch pressure plate due to friction. Such overheating could cause the pressure plate to fracture rapidly, leading to cracks or holes in the transmission case. This damage could result in the expulsion of heated debris from the transmission case, posing safety risks to vehicle occupants and other road users.

By June 2024, FCA’s Technical Safety and Regulatory Compliance (TSRC) organization received reports of vehicles stalling after undergoing the 19A recall remedy. An investigation focused on specific 2021 Jeep Wrangler and 2021 Jeep Gladiator vehicles with manual transmissions that had received the initial remedy under FCA US Recall ID 19A / NHTSA Recall 23V-116. The investigation found that these vehicles might encounter an issue with the Revolutions per Minute (RPM) reduction feature in the PCM software.

The issue was traced to a suspect software release that began on June 19, 2024. This software release introduced a malfunction affecting the RPM reduction feature. The release period ended on June 26, 2024, when the software was withdrawn from availability. Affected vehicles were identified using PCM scan data, ensuring precise identification of those needing further attention. It was confirmed that similar vehicles not included in the recall either lacked manual transmissions or were not updated with the problematic software version.

The remedy involves updating the PCM software in the affected vehicles to ensure the RPM reduction feature operates correctly. This update aims to eliminate the risk of stalling and enhance overall vehicle performance.

Owners of the affected Jeep Wrangler and Jeep Gladiator models will receive notification letters by August 15, 2024. These letters will provide detailed instructions on how to proceed with the necessary software update.

For reference, FCA US LLC has assigned the number 92B to this recall, and the NHTSA campaign number is 24V-572. It is crucial for vehicle owners who had previously completed repairs under recall 23V-116 to ensure this new remedy is completed to maintain vehicle safety and reliability.

Rear View Camera Issue Prompts FCA Recall of Over One Million Vehicles

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blank-dashboard-displayChrysler (FCA US, LLC) is taking steps to address an issue affecting the rear view cameras in over a million of its vehicles. On October 23, 2023, the FCA Technical Safety and Regulatory Compliance (TSRC) organization was alerted to a potential problem where rear view cameras were not displaying images in certain Dodge, Chrysler, Jeep, and Ram models. This issue potentially violates the Federal Motor Vehicle Safety Standards (FMVSS) for rear visibility.

An investigation revealed that a software glitch in the radio system of these vehicles could cause the rear view camera to fail to display the required image when the vehicle is put into reverse. This noncompliance with FMVSS No. 111, which mandates that rear visibility systems must default to showing the rear view image and adhere to specific field of view and image size requirements at the start of each backing event, regardless of any prior modifications made by the driver.

The issue, affecting 1,033,433 units, was identified during a thorough investigation. By June 2024, FCA US’s Vehicle Regulations Committee determined that a voluntary safety recall was necessary to rectify the problem.

The vehicles affected include:

2021-2023 Chrysler Pacifica
2021-2022 Dodge Durango
2022-2023 Jeep Compass
2021-2023 Jeep Grand Cherokee
2022-2023 Jeep Grand Wagoneer
2022-2023 Jeep Wagoneer
2022 RAM 1500
2022 RAM 2500
2022 RAM 3500
2022-2023 RAM Promaster

NOTE: Owners of these vehicles will notice that the rear view image does not appear when the vehicle is placed into reverse.

To resolve this issue, dealers will update the radio software in the affected vehicles. Owner notification letters are scheduled to be mailed out by August 2, 2024. FCA has designated this recall with the number 66B, and it corresponds to the National Highway Traffic Safety Administration (NHTSA) campaign number 24V-436.

Ford Hybrid – Unexpected Neutral Shifting

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Ford Escape GearshiftFord has discovered a problem affecting specific hybrid vehicles, including the 2022-2024 Maverick, 2020-2022 Escape, and 2021-2022 Lincoln Corsair models. These vehicles may contain software that could cause the vehicle to shift into neutral unexpectedly.

Investigation and Findings

In March 2024, Ford’s Critical Concern Review Group (CCRG) initiated an investigation following field reports indicating that some vehicles were shifting to neutral after receiving a Hybrid Powertrain Control Module (HPCM) software update at dealerships. The powertrain controls and calibration team discovered that the new Hybrid Transmission Internal Park Module (HTIPM) software, which had been released for service in January 2024, was incorrectly detecting noise in the Park Motor Position Sensor. This led to the generation of erroneous Park Motor Position Sensor Diagnostic Trouble Codes (DTCs) U1010 and U1011.

Field Action Approval

On May 3, 2024, Ford’s Field Review Committee examined the issue and approved a field action to address the problem. According to the defect report, the affected vehicles received HPCM software that could force the vehicle into a neutral state while driving. As the vehicle coasts to a stop, the transmission will automatically shift to “Park”. Despite this issue, drivers retain functionality for power braking and power steering. Once the driver shifts back to drive, the vehicle enters a limp home mode, which provides limited torque at low speeds up to 30 mph.

Reported Incidents and Warranty Claims

Ford has reported 315 warranty claims in North America and 125 Vehicle Owner Questionnaires (VOQs) that may be related to this software issue. These incidents highlight the importance of addressing the defect to ensure driver safety and vehicle reliability.

Recall Details and Owner Notification

To rectify the problem, dealers will update the HPCM software free of charge. Ford plans to mail owner notification letters starting on May 23, 2024. For reference, Ford’s recall number for this issue is 24S33, and the National Highway Traffic Safety Administration (NHTSA) campaign number is 24V-330.

Owners of the affected vehicles are encouraged to contact their dealers promptly to schedule the necessary software update. Ensuring that your vehicle receives this update is crucial for maintaining optimal performance and safety.

Summary

  • Affected Vehicles: 2022-2024 Ford Maverick, 2020-2022 Ford Escape, and 2021-2022 Lincoln Corsair hybrid models.
  • Issue: Software may cause unexpected shifts into neutral.
  • Investigation Start: March 2024 by Ford’s CCRG.
  • Findings: Noise in Park Motor Position Sensor detected by HTIPM software, causing erroneous DTCs U1010 and U1011.
  • Action Approved: May 3, 2024, by Ford’s Field Review Committee.
  • Incidents Reported: 315 warranty claims and 125 VOQs in North America.
  • Solution: HPCM software update by dealers.
  • Owner Notification: Letters to be mailed starting May 23, 2024.
  • Recall Numbers: Ford 24S33, NHTSA 24V-330.

Ford Bronco & Maverick Undetected Low Battery

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In recent years, advancements in automotive technology have led to increasingly sophisticated control systems within vehicles, aimed at enhancing performance, efficiency, and safety. However, with these advancements come the potential for unforeseen challenges and issues to arise.

One such challenge has been identified in certain models of Ford vehicles, specifically the 2021-2024 Ford Bronco Sport and the 2022-2023 Ford Maverick. The concern centers around the failure of the body control module (BCM) and powertrain control module (PCM) to accurately detect changes in the state of charge of the 12-volt battery. This oversight has significant implications, as it could result in a loss of drive power, thereby increasing the risk of accidents and compromising the safety of both drivers and passengers.

The issue first came to light in October 2023, when the National Highway Traffic Safety Administration’s Office of Defects Investigation (NHTSA ODI) initiated an inquiry following reports of loss of motive power (LOMP) and subsequent loss of 12-volt accessories in 2021 model year Bronco Sport vehicles. Upon receiving 29 potentially relevant Vehicle Owner Questionnaires (VOQs) from NHTSA, Ford’s Critical Concern Review Group (CCRG) promptly launched an investigation to delve deeper into the matter.

Subsequent testing and analysis revealed a fundamental flaw in the BCM and PCM calibrations, rendering them incapable of accurately detecting battery failure in the affected vehicles. This deficiency becomes particularly pronounced during instances where the alternator struggles to meet the electrical load demand or during Auto Stop-Start events. As a result, drivers may experience unexpected loss of drive power, posing a serious safety hazard.

In response to these findings, Ford’s Field Review Committee took decisive action and authorized a vehicle recall to address the underlying issue. Under the recall, authorized dealerships will undertake corrective measures by re-calibrating the BCM and PCM to ensure accurate monitoring of the 12-volt battery state of charge. The recall process is expected to commence soon, with owner notification letters slated to be mailed out on May 13, 2024.

However, the implications of this issue extend beyond the immediate safety concerns. Ford acknowledges a significant number of warranty reports, field reports, and customer complaints related to this issue, totalling 917, 11, and 54 respectively. Moreover, there have been alarming reports of three unverified incidents of fire and two property damage claims allegedly linked to this concern. These statistics underscore the urgency of addressing the issue promptly and comprehensively.

In light of these developments, Ford has assigned a unique recall number, 24S24, and the corresponding NHTSA campaign number is 24V-267.

Phantom Braking Issue In Certain 2023 Chevrolet Colorado and GMC Canyon Trucks

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2023 Chevrolet Colorado and GMC CanyonIn the realm of automotive safety, the emergence of advanced driver assistance systems (ADAS) has promised to revolutionize the driving experience, offering heightened levels of safety and convenience. However, as with any technological advancement, occasional glitches and malfunctions can arise, potentially jeopardizing the safety of drivers and passengers alike. Such is the case with the “phantom braking” issue that has plagued certain 2023 Chevrolet Colorado and GMC Canyon trucks.

The issue came to light in September 2023, when reports of unexpected automatic emergency braking (AEB) incidents surfaced in General Motors (GM) vehicles in China. GM initiated an investigation through its Speak Up For Safety (SUFS) program, aiming to identify the root cause of the problem and implement appropriate corrective measures.

Upon investigation, it was discovered that the faulty behavior stemmed from the Front Camera Module (FCM) system, a crucial component responsible for detecting obstacles and triggering AEB when necessary. Under certain conditions, the FCM’s software exhibited erroneous detection of obstacles, resulting in unwarranted activation of the AEB system. This phenomenon, referred to as “phantom braking,” poses a significant safety risk, potentially leading to accidents and injuries.

GM, in collaboration with its supplier, conducted rigorous testing and analysis to pinpoint the underlying cause of the malfunction. This involved examination of field data from various sources, including different versions of the FCM software, vehicles produced in different periods, and reports from both the U.S. and China.

A total of 234 field complaints in the U.S. were potentially linked to the phantom braking issue. Among these incidents, four resulted in accidents, with three causing minor injuries to occupants. GM’s Safety Field Action Decision Authority (SFADA) made the decision to initiate a safety recall in February 2024.

The recall, identified by GM as A232424660 and by the National Highway Traffic Safety Administration (NHTSA) as campaign number 24V-133, involves a corrective measure aimed at rectifying the software glitch in the FCM. Authorized dealerships will apply updates to the FCM software, effectively addressing the root cause of the phantom braking issue and restoring the intended functionality of the AEB system.

In conclusion, while the emergence of advanced driver assistance systems has undoubtedly enhanced automotive safety, incidents such as the phantom braking issue serve as a stark reminder of the importance of vigilance and proactive intervention. Through swift action and collaboration between manufacturers, suppliers, and regulatory agencies, the automotive industry can continue to push the boundaries of safety innovation, ensuring that drivers can enjoy the benefits of technology without compromising their well-being on the road.

Jeep Safety Alert: Windshield Defrosting Systems

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Chrysler (FCA) will be contacting the owners of certain 2021-2024 Jeep Wrangler and 2022-2024 Jeep Grand Cherokee over a failure to comply with Federal Motor Vehicle Safety Standards (FMVSS) related to windshield defrosting and defogging systems. Owners of affected vehicles are urged to take immediate action to rectify this potentially hazardous issue.

In June 2023, FCA Technical Safety and Regulatory Compliance (TSRC) organization received reports indicating a potential malfunction in the windshield defrost system of certain 2021-2024 Jeep Wrangler Plug In Hybrid Electric Vehicles (PHEVs) and 2022-2024 Jeep Grand Cherokee PHEVs. This issue raised concerns about the vehicles’ compliance with FMVSS.

An investigation conducted by FCA determined that a subset of these vehicles may have been built with incorrectly programmed hybrid control processor (HCP) software. This flaw could result in the disabling of the windshield defrost system under specific conditions. The affected period for the Jeep Wrangler spans from September 2, 2020, to August 24, 2023, while for the Jeep Grand Cherokee, it extends from July 23, 2021, to December 5, 2023.

A disabled windshield defrost system poses a significant safety risk, as it can impair outward visibility during critical driving conditions, potentially leading to accidents. In response to this safety concern, FCA has initiated a voluntary safety recall of the affected vehicles.

To address the issue, authorized dealerships will update the HCP software to rectify the programming error. This corrective action aims to restore the proper functioning of the windshield defrosting and defogging systems, ensuring optimal visibility and driving safety for affected vehicle owners and occupants. This recall, identified as recall number 04B by Chrysler, carries the NHTSA campaign number 24V-111.

GM “Stop Delivery” On Certain Chevy Blazer, Chevy Equinox And GMC Terrain Vehicles

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Chevy Blazer EV Stop Delivery

General Motors (GM) has announced an immediate stop delivery order for certain 2024 model vehicles, including the Chevrolet Blazer, Chevrolet Blazer EV, Chevrolet Equinox, and GMC Terrain vehicles. This decision, taken as a precautionary measure to ensure customer satisfaction and vehicle reliability.

The specific issue prompting this stop delivery order has not been publicly disclosed by General Motors. The order is categorized under “Global Safety Field Investigations,” suggesting that GM is actively working to identify and rectify the underlying problem. The lack of detailed information at this stage highlights the company’s cautious approach in handling potential vehicle issues.

Affected vehicles have been identified through their Vehicle Identification Numbers (VINs), with a clear directive that these vehicles should not be sold or delivered by dealers until further details and solutions are provided. This restriction also prohibits dealer trades, auction releases, demonstration uses, or any other dealership activities involving these models. To facilitate this process, GM has updated the Investigate Vehicle History (IVH) screen in the Global Warranty Management (GWM) system, which now tags the affected vehicles with a “Stop Delivery” status and labels the VIN as “Incomplete Remedy Not Available.”

One significant concern that has emerged is related to software issues in the 2024 Chevrolet Blazer EV, which uses GM’s advanced Ultium battery system. A small number of Blazer EV owners have reported issues with the software quality, prompting Chevrolet to temporarily halt sales and deliveries of this model. This pause is intended to ensure that the vehicles delivered meet GM’s high standards for quality and reliability. Notably, the software problems cannot be resolved through an over-the-air (OTA) update, necessitating a visit to the dealership for service.

GM has assured customers and stakeholders that these software issues are not safety-related and do not pertain to the Ultium battery system or the Google Built-in features. The engineering teams at GM are actively working on a solution. Affected vehicle owners will be contacted by GM with instructions on scheduling their software updates.

This stop delivery order, labeled under GM number N232429910, is a measure by GM to preemptively address potential issues before they impact customers. As the situation evolves, GM is expected to provide further updates and guidance to both dealerships and vehicle owners.