Tag Archives: unexpected engine stall

Engine Failure Risk in 2021–2024 General Motors Vehicles with 6.2L V8 Engines

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If you drive a Chevrolet Silverado, GMC Yukon, or Cadillac Escalade equipped with the 6.2L V8 engine (RPO L87), your vehicle may be at risk of sudden engine failure due to defective engine components. (Safety Recall N252494001 and NHTSA campaign number 25V-274)

Vehicles Affected by the Recall

  • Chevrolet: Silverado 1500, Suburban, Tahoe (2021–2024)
  • GMC: Sierra 1500, Yukon, Yukon XL (2021–2024)
  • Cadillac: Escalade, Escalade ESV (2021–2024)

Over 600,000 GM vehicles are included in this recall.

The Engine Defect Explained

The recall stems from manufacturing defects in the connecting rods and crankshaft, which may include:

  • Sediment in connecting rods and crankshaft-oil galleries
  • Crankshaft dimension issues
  • Improper surface finishing

These defects can lead to engine failure, posing a serious safety risk.

Potential Dangers and Symptoms

According to GM, drivers may notice warning signs before total engine failure, including:

  1. Unusual Engine Noises – Knocking, banging, or metallic sounds
  2. Check Engine Light – Illumination of the dashboard warning light
  3. Performance Problems:
    • Hesitation or stumbling during acceleration
    • High or unusual RPMs
    • Abnormal or rough shifting
    • Reduced propulsion or loss of power
    • No-start condition (engine fails to start)

If the engine fails while driving, drivers may lose propulsion, significantly increasing the risk of a crash. GM has already linked the defect to 12 potential crashes and 12 reported injuries in the U.S.

The Official GM Remedy

General Motors dealers will inspect affected vehicles. Depending on results, remedies include:

  • Higher Viscosity Oil – Offers added protection against component wear
  • New Oil Fill Cap & Oil Filter Replacement
  • Owner’s Manual Insert – Updated guidance for owners

Is My Vehicle Safe to Drive?

While GM notes that the condition does not affect braking or cause an abrupt stop, an engine failure during operation will cause a loss of propulsion, requiring drivers to coast and maneuver to the side of the road. This can create a serious safety hazard.

Until recall repairs are complete, GM advises owners to stay alert for unusual engine noises, warning lights, and changes in performance.

California Lemon Law: Your Rights as a Consumer

If you’re a California resident and your Chevrolet, GMC, or Cadillac has been in the shop multiple times for the same issue, or if you’ve lost significant time without your vehicle, you may qualify for relief under the California Lemon Law.

Lemon law protections may entitle you to a:

  • Buyback (refund)
  • Vehicle replacement
  • Cash compensation

Our experienced California Lemon Law attorneys can guide you through the process and ensure you receive the compensation you deserve.

What to Do If Your Vehicle is Affected

  1. Schedule a Dealer Inspection – Don’t wait until your engine fails; get ahead of the issue.
  2. Document All Repairs and Symptoms – Keep records for potential lemon law claims.
  3. Call for a Free Case Review – If you’ve had repeated problems, call 1-866-785-4477 for a free California Lemon Law consultation.

Final Thoughts

The 6.2L V8 engine defect in GM vehicles is a serious safety concern affecting hundreds of thousands of drivers. If you own a 2021–2024 Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, or Cadillac Escalade, don’t wait for the engine to fail — take action now to protect your safety and your rights.

✅ Free Case Review: Contact our California Lemon Law attorneys today at 1-866-785-4477 or fill out our online form at the top of the page to learn if your GM vehicle qualifies for a buyback, replacement, or compensation.

Engine Failure Problem Affects Certain GM Vehicles

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General Motors LLC (GM) has determined that certain 2021-2024 GM vehicles equipped with a 6.2L V8 gas engines could experience engine failure problems. The issue is caused by manufacturing defects in the connecting rod and/or crankshaft engine components, which can lead to engine damage and failure.

Affected Vehicles

The following GM vehicles are affected by this recall:

  • Cadillac Escalade (2021-2024)
  • Cadillac Escalade ESV (2021-2024)
  • Chevrolet Silverado 1500 (2021-2024)
  • Chevrolet Suburban (2021-2024)
  • Chevrolet Tahoe (2021-2024)
  • GMC Sierra 1500 (2021-2024)
  • GMC Yukon (2021-2024)
  • GMC Yukon XL (2021-2024)

The Problem

GM’s investigation found that the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects, including:

  1. Rod-bearing damage from sediment on connecting rods and crankshaft-oil galleries
  2. Out of specification crankshaft dimensions and surface finish

These issues can cause or contribute to bearing damage, leading to loss of propulsion and engine failure.

Warning Signs

Drivers may be alerted to the condition prior to failure by:

  • Unusual engine noises (knocking, banging, etc.)
  • Illumination of the check engine light
  • Engine-performance issues, including:
    • Hesitation
    • High RPMs
    • Abnormal shifting
    • Reduced propulsion
    • No-start condition

Consequences of Engine Failure

If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. In fact, GM has identified 12 potentially related alleged crashes and 12 potentially related alleged injuries in the U.S.

Recall Repair

Dealers will inspect the engine and, as necessary, repair or replace it. For vehicles that pass inspection, dealers will:

  • Add higher viscosity oil
  • Install a new oil fill cap
  • Replace the oil filter
  • Update the owner’s manual

Recall Details

  • GM’s recall number: N252494000
  • NHTSA campaign number: 25V-274
  • Owner notification letters are expected to be mailed on June 9, 2025

If you receive a notice saying your vehicle is affected, it is essential to take immediate action and contact your local dealer to schedule a repair. Remember to always monitor your vehicle’s performance and watch for any warning signs of engine failure.

Certain 2022-2024 Ford F-150 Lightning BEVs May Have A Battery Defect

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A potential safety issue has been identified in a small number of 2022-2024 Ford F-150 Lightning Battery Electric Vehicles (BEVs). The problem affects the high voltage battery cells, which may have a manufacturing defect that can cause an internal short circuit. This defect is due to misaligned electrodes in the battery cells, which can occur over repeated charge and discharge cycles.

The issue was first brought to Ford’s attention in October 2024, when a fire was reported in a 2022 model year F-150 BEV. Further investigation revealed two additional fires in 2022 and 2023 model year vehicles, prompting Ford to launch a broader inquiry into the matter. Although no physical samples were initially available for analysis, Ford’s Field Review Committee authorized a program to collect and evaluate additional samples from the field.

The subsequent tear-down analysis of the returned battery arrays revealed evidence of misaligned electrodes in the high voltage battery cells. The supplier also found that eight stacker machines between two production lines had produced cells with cathode shift, which did not meet the design requirements. This manufacturing concern resulted in overlap that fell short of the required standards. Notably, some of the cells from vehicles that experienced fires were manufactured during this time frame.

On February 18, 2025, Ford learned of a fifth report of a vehicle fire and decided to approve a safety recall. The recall affects certain 2022-2024 Ford F-150 Lightning BEVs, and owners are advised to take precautions until the repair is completed. Specifically, owners should only charge their vehicles to a maximum of 80% battery capacity to minimize the risk of an internal short circuit.

To address this issue, dealers will inspect and replace the high voltage battery array as necessary. Owner notification letters are expected to be mailed on March 17, 2025. Ford’s recall number for this issue is 25S18, and the National Highway Traffic Safety Administration (NHTSA) has assigned a campaign number of 25V-131.

Electrical Issues Affecting 2024 Ford Explorer and Bronco Sport Models

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battery problemsFord Motor Company has announced two significant recalls affecting its 2024 Explorer and Bronco Sport vehicles. Both recalls involve electrical issues that could potentially lead to serious problems for vehicle owners. Here’s what you need to know about each recall:

2024 Ford Explorer Recall (NHTSA Campaign Number: 24V-685)

Ford is recalling certain 2024 Explorer models equipped with 3.3L Hybrid engines. The issue stems from the 12-volt battery cable, which may chafe against the Belt-integrated Starter Generator (BiSG). If this occurs, it could lead to a short circuit.

This kind of electrical short can cause the vehicle to lose power, increasing the risk of a crash. In some cases, the short circuit could also result in a fire hazard. Ford is taking action to notify owners and replace or repair affected parts to ensure safety.

Key Concerns:

  • Affected Vehicles: 2024 Ford Explorers with 3.3L Hybrid engines
  • Problem: 12-volt battery cable could chafe against the BiSG, leading to a short circuit
  • Risks: Potential loss of power and fire hazard

2024 Ford Bronco Sport Recall (NHTSA Campaign Number: 24V-683)

The second recall involves certain 2024 Ford Bronco Sport vehicles. In these models, the body and powertrain control modules may fail to detect changes in the state of charge of the 12-volt battery. This issue can lead to incorrect readings and could affect the vehicle’s performance.

If the control modules fail to detect the battery’s actual charge, the vehicle may stall unexpectedly, which could increase the risk of an accident. Ford plans to update the control module software to fix the issue.

Key Concerns:

  • Affected Vehicles: 2024 Ford Bronco Sport
  • Problem: Control modules may not detect changes in the battery’s state of charge
  • Risks: Vehicle stalling unexpectedly, raising the likelihood of accidents

Ford will notify owners of the affected vehicles and instruct them to take their cars to authorized dealers for inspection and repair. The repairs, include replacing cables or updating control module software.

If you own a 2024 Ford Explorer Hybrid or Bronco Sport, it’s important to stay alert for communication from Ford about these recalls. In the meantime, you can also contact Ford’s customer service or visit the National Highway Traffic Safety Administration (NHTSA) website to check if your vehicle is part of the recall. By addressing these issues promptly, Ford aims to prevent potential accidents and ensure the continued safety of their customers.

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.

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.

Jeep Wrangler 4XE Plug-In Hybrid Repeated Problems

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Jeep Wrangler 4XE The Jeep Wrangler 4XE plug-in hybrid has faced a series of challenges that have left many owners questioning the reliability of their vehicles. Reports from owners highlight a range of issues, from stalling engines that cannot be restarted to transmission errors, battery defects, and more serious safety concerns.

One common complaint among Wrangler 4XE owners is the vehicle’s tendency to stall unexpectedly, leaving drivers unable to restart the car. This issue is not just inconvenient but poses a significant safety risk, especially if it occurs in traffic or remote areas. Additionally, there have been reports of defective batteries and blown fuses, further contributing to the vehicle’s unreliability.

Transmission problems are another significant issue, with some owners experiencing leaks and errors, alongside instances where the shifter becomes stuck in park, rendering the vehicle immobile. Warning lights, such as the check engine light and power steering light, frequently accompany these mechanical failures, along with messages indicating the need to “Service Electronic Stability.”

Charging issues have also been a point of frustration. Errors like “Service Charging System” have been reported, alongside malfunctions in the Power Inverter Module (PIM), further complicating the ownership experience. In some cases, these electrical issues lead to a complete loss of power, preventing the vehicle from starting.

More alarming are reports of oil leaks from the exhaust and rear undercarriage, with one vehicle diagnosed with a bad pinion seal on the rear axle at merely 241 miles on the odometer. The recurrence of such leaks, accompanied by smoke and the potential risk of fire, underscores the severity of the Wrangler 4XE’s problems.

The erratic behavior of the vehicle’s transmission and propulsion systems, including sudden stops in the middle of highways and unintended acceleration that has led to property damage, raises significant concerns about the safety and reliability of the Jeep Wrangler 4XE.

For owners facing these daunting issues, California’s Lemon Law provides a beacon of hope. This law is designed to protect consumers who have purchased or leased new vehicles covered by a manufacturer’s new vehicle warranty. If a vehicle proves to be defective and cannot be repaired after a reasonable number of attempts, the manufacturer is required to either replace the vehicle or refund the purchase price to the consumer.

Under the California Lemon Law, owners of the Jeep Wrangler 4XE experiencing repeated failures that substantially impair the vehicle’s use, value, or safety may be entitled to relief. It’s essential for affected owners to keep detailed records of all repairs and attempts made to address the issues, as these documents will be crucial in pursuing a lemon law claim.

The myriad of problems faced by Jeep Wrangler 4XE owners highlights the challenges in the automotive industry’s shift towards electrification, especially in models that are expected to perform under the demanding conditions for which Jeeps are renowned. For those grappling with these defects, understanding and utilizing the protections offered by the Lemon Law can provide a pathway to resolution and ensure that manufacturers are held accountable for the reliability and safety of their vehicles.

Nissan Ariya Inverter Software Problem

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Nissan North America, Inc. (Nissan) is reaching out to the owners of certain 2023 Ariya vehicles due to an issue with the inverter software. This problem may trigger the inverter to detect a short circuit, causing a shutdown of the EV system and a loss of drive power.

The Discovery of the Problem:

Nissan first became aware of this issue during a production trial involving an Ariya vehicle in January 2022. In this trial, the electric motor abruptly shut off shortly after the vehicle began moving at low speed. A diagnostic trouble code (DTC) revealed a short circuit inside the motor, although no actual damage to the motor or its components was observed. A deeper investigation into the problem found that in some rare instances, conductive fibers generated during the operation from the slip ring in the motor could lead to a momentary short circuit between the electrodes.

Understanding the Problem:

Nissan Ariya dashAccording to the defect report, the root cause of the issue lies in conductive fibrous shavings from the drive motors’ slip ring assembly. These shavings can occasionally cause a momentary short circuit between the two slip rings. When this occurs, the fibrous shavings are instantaneously burned out, causing no harm to any vehicle components. However, when the inverter detects a momentary over-current due to the short circuit, it reduces motor torque to protect the internal components of the controller. This leads to a loss of drive power, and an “EV System Off” message is displayed on the dashboard to alert the driver.

In the event of this issue occurring, the torque to the driven wheels is cut off. This continues until the fail-safe mode is released, which requires turning the vehicle off and then back on. An unexpected loss of motive power while driving at high speeds could potentially increase the risk of an accident.

Nissan’s Solution:

To address this safety concern, Nissan dealers will reprogram the inverter software to enhance the fail-safe protocols. This proactive measure aims to prevent such short circuits from impacting the driving experience and maintaining safety for the driver.

Recall Details:

Nissan has designated this recall as R23C6 and the National Highway Traffic Safety Administration (NHTSA) has assigned the campaign number 23V-657 to this recall.