Tag Archives: manufacturing error

2020 Mercedes Benz GLC350E 4Matic
Loss Of Drive Power

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The owners of certain 2020 Mercedes Benz GLC350E 4Matic SUVs could experience a loss of drive power due to a problem affecting the wiring harness going to the transmission in their vehicles.

In September 2020, Mercedes Benz first became aware of the problem after receiving a customer complaint regarding the loss of drive power in their vehicle. As similar complaints regarding GLC-Class vehicles increased Mercedes began an investigation into the problem. A production quality survey was initiated to double check the wiring harness installation in two plants producing the LC-Class. Mercedes investigated possible commonalities between the reported failures of two different platforms that are manufactured at three different plants. Mercedes also asked the wiring harness supplier to analyze any possible cause involving the wiring harness.

The investigation identified the root cause of the problem as an error in the installation of the wiring harness. Mercedes studied the potential effect of the transmission wiring harness production deviation on vehicle safety and identified the potentially affected vehicles. On July 1st 2022, they determined that there was a potential safety risk and decided to conduct a recall of all the potentially affected vehicles.

According to the defect report, the routing of the transmission wiring harness in certain 2020 GLC-Class (253 platforms) 4-Matic vehicles may not meet current production specifications. Due to deviations in the wiring harness length and the assembly process, the harness could come in contact with the front drive shaft and damage it over time. If this happens, drivers could experience a loss of propulsion and an increased risk of an accident. If the failure occurs, the driver would be made aware through a warning message in the instrument cluster.

Owners receiving notices will be asked to return to their dealers to have the transmission wiring harness inspected and replaced as necessary. The NHTSA campaign number for this recall is 22V-494.

2022 Ford Explorer And 2022 Lincoln Aviator Engine Rail Sub-Assembly Failure

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Ford Motor Company (Ford) will be contacting the owners of certain 2022 Ford Explorer and 2022 Lincoln Aviator SUVs because the vehicles they are driving may not comply to the Federal Motor Vehicle Safety Standards for occupant crash protection and fuel system integrity.

Ford first became aware of the problem in April 2022 when one of their assembly plants started experiencing intermittent bolt strip-out conditions when securing the front sub-frame to the front apron assembly. An investigation into engine rail sub-assembly failures found that the mechanical properties of the engine rails did not meet the intended strength requirements. Supplier records showed that over six hundred engine rail sub-assemblies were sent out for an unapproved repair procedure (thermal e-coat stripping) which degraded the mechanical properties and weakened the metal. Some of the suspect rails were used at the Tier 1 supplier and 137 suspect rails were shipped to the assembly plant. A Stop Shipment was issued on April 28, 2022 and an inspection of engine rail hardness was carried out on over 5000 vehicles.

According to the defect report, the vehicles affected were built with an engine rail that may not
maintain its integrity in a crash and as a result, does not meet the Federal Motor Vehicles Safety Standards (FMVSS) for Occupant Crash Protection and Fuel System Integrity requirements. A weakened engine rail could also become loose, resulting in a clunking noise during acceleration, deceleration, or contact with potholes, speed bumps, or other road surface irregularities.

Owners will be notified by mail and instructed to take their vehicle to a Ford or Lincoln dealer for an engine rail inspection. If the vehicle does not pass the strength test, owners will be given the option of a replacement of the engine rail assembly or, because of the extensive nature of this repair, vehicle replacement or a buyback. Owners opting for repairs will be sent awareness letters and instructed to bring their vehicles in when parts become available. Ford’s number for this recall is 22C13 and the NHTSA campaign number is 22V-454.

Are you thinking of taking a replacement or buyback? Under the California Lemon Law, if your vehicle qualifies, you should recover your down payment, (including registration fees, licensing fees, taxes, transportation costs, etc.), plus your total monthly lease or loan payments. The manufacturer will also pay off the balance of your loan or lease. The manufacturer will also pay all or most of your attorney’s fees.

If you have any questions about your rights and the California Lemon Law, please call our office at 1-888-395-3666 and get some great Lemon Law advice!

Rear Suspension Toe Link Could Separate On Cadillac And GMC SUVs

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General Motors (GM) has decided that a safety defect affecting suspension exists in certain 2022 Cadillac XT5, 2022 Cadillac XT6, and 2022 GMC Acadia vehicles. Owners will be receiving notices with instructions to return to their Cadillac or GMC dealer to have the suspension in their vehicle inspected and repaired as necessary.

GM became aware of the problem in March 2022, after a quality engineer at one of GM’s assembly plants identified a Cadillac XT6 that was missing a toe link to a knuckle bolt in the vehicle’s left side rear suspension. The manufacturing records showed that the bolt had been fully tightened, but further investigation found that the supplier’s error-proofing equipment had been improperly configured following a change in the assembly process. As a result, the tool operator could have failed to fully tighten the bolt without the error-proofing equipment detecting it.

According to the defect report, after an assembly process was moved to a new area, error-proofing equipment was not initially set up properly. This allowed a window where the operator may miss tightening certain fasteners without the failure being flagged. The affected toe links may be loose or become separated, resulting in misalignment of the left-rear wheel and increasing the risk of a crash

GM investigated the potentially affected population and inspected 271 suspensions that had been contained at the plant, with six more instances of loose fasteners identified. Although GM have not received any claims or complaints related to the subject condition and they are not aware of any associated accidents or injuries but have decided to conduct a safety recall.

Dealers will inspect the left-rear suspension and replace the fastener if it is loose or missing. GM’s number for this recall is N222364330 and the NHTSA campaign number is 22V-427. Approximately 736 vehicles may be affected.

Chevrolet HD Truck – Brake Line Leak

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General Motors (GM) will be asking a small number of 2022 Chevrolet Heavy Duty (HD) truck owners to return to their GM dealership for a problem affecting the brakes in their vehicles. The primary hydraulic brake line assembly may have not been tightened to manufacturer specifications and could loosen and leak.

The vehicles affected by this problem include:

2022 Chevrolet 4500HD
2022 Chevrolet 5500HD
2022 Chevrolet 6500HD

In April 2022, during assembly end of the line testing, GM discovered that several of their Chevrolet HD trucks were experiencing a soft brake pedal feel and/or extended stopping distances. Navistar, the manufacturer of these vehicles informed GM that they intended to file a safety recall for this condition, and in May, GM’s Safety and Field Action Decision Authority (SFADA) decided to conduct a safety recall on the GM badged vehicles produced in the same suspect production period as the recalled Navistar vehicles. GM is not aware of any relevant field reports or crashes related to this problem.

According to the defect report, an investigation by the manufacturer of these vehicles found that the pressure sensor fitting of the primary hydraulic brake line assembly may not have been tightened to the correct manufacturer torque specification. If the brake line assembly loosens and brake fluid is lost, drivers may experience a soft or low brake pedal feel, extended stopping distances and the brake warning light may illuminate. Owners may also notice brake fluid on the ground or in the engine compartment.

Owners receiving notices will be asked to return to their dealers to have the brake pressure switch tightened to specification. They will also bleed the brake system and top off the brake fluid.

GM’s number for this recall is N222368230 and the NHTSA campaign number is 22V-364.

Insufficient Welds In Ford Escape And Lincoln Corsair High Voltage Batteries

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The high voltage batteries in certain 2020 Ford Escape and 2021 Lincoln Corsair vehicles may have been manufactured with insufficient welds that could fail and cause a loss of drive power. These vehicles are equipped with 2.5L hybrid powertrains.

Ford’s Critical Concern Review Group first became aware of the problem in February 2022 when they were informed, by the supplier, that there was an issue with the weld penetration on the bus bars of certain high voltage batteries. A review of the manufacturers’ records showed that the suspect cause of the problem was damage to the laser cooling line caused by maintenance of the laser air knife. The damage to the laser cooling line resulted in an out-of-control weld process and insufficient welds. The suspect time period was between June 6, 2020, and June 12, 2020.

According to the safety report, insufficient weld penetration between the bus bar and cell terminal could result in a loss of electrical contact at the bus-bar weld joint inside the high voltage battery. Loss of electrical contact will result in a loss of motive power and an increased risk of an accident.

The vehicle warning display will illuminate a “Stop Safely Now” message, a wrench lamp, and an audible alert when the vehicle loses motive power.

Owners receiving notices will be asked to take their vehicle to their Ford or Lincoln dealer to have the High Voltage Battery replaced. The new High Voltage Battery LX68-10B759-R will have a bus bar that has proper weld penetration. The supplier repaired a damaged coolant line on June 27, 2020. High voltage batteries produced after June 27, 2020 were produced with sufficient bus bar weld penetration. Ford’s number for this recall is 22S33 and the NHTSA campaign number is 22V-331.

Software Error Could Result In An Unexpected Vehicle Roll-Away

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Automobile manufacturers Hyundai and Kia will be asking owners of certain 2022 Hyundai Ioniq 5 and 2022 Kia EV6 vehicles, to return to their dealerships for a problem affecting the parking brake mechanism. A software error in the Shifter Control Unit (SCU) may disengage the parking mechanism and allow the vehicle to roll away.

Hyundai and Kia first became aware of the problem in April/May 2022 after reports about warranty claims involving some Ioniq 5 and EV6 vehicles in Korea. The vehicles allegedly unexpectedly rolled away after being parked on an incline with the ignition off. Further investigation into the incidents found voltage fluctuations in the electrical system that could affect the command signal from the Shifter Control Unit (SCU) to the parking actuator. The result would be a momentary disengagement of the parking pawl.

According to the safety report, the subject vehicles are equipped with a shift-by-wire system with a shifter control unit and parking pawl actuator motor. If a voltage fluctuation occurs when the vehicle is off and in Park, the signal from the SCU to the actuator may be affected. The problem could result in the temporary disengagement of the parking mechanism and a potential vehicle roll away.

Owners will be asked to return to the dealerships to have the Shifter Control Unit software updated. Drivers are recommended to use the Electronic Parking Brake (EPB) when parking their vehicles until the software update has been performed. Hyundai’s number for this recall is 228 and the NHTSA campaign number is 22V-324. Kia’s number for this recall is SC236 and the NHTSA campaign number is 22V-332.

If you are experiencing repeated problems with your vehicle, it could be a lemon. If you have any questions about your rights and the California Lemon Law, please call our office at 888-395-3666 and get some great Lemon Law advice!

Tesla Center Screen Display Is Lagging Or Completely Blank

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Tesla will be contacting the owners of certain 2021-2022 Tesla model vehicles because of a problem that could cause the infotainment central processing unit (CPU) to malfunction.

The vehicles affected by this problem include:

2022 Tesla Model 3
2021-2022 Tesla Model S
2021-2022 Tesla Model X
2022 Tesla Model Y

In December 2021 during routine High Temperature Operation Endurance (HTOE) testing on the Model 3 and Model Y vehicle platform central processing unit (CPU), throttling was detected from thermal protections being engaged. An investigation into thermal management was initiated using vehicle alerts to follow the condition in the field. During this time, Tesla Engineering worked on a series of test experiments to identify the potential cause of the overheating condition. In April 2022, Tesla completed its investigation and confirmed the suspected root cause and affected vehicle population. The findings were reviewed and a recall was initiated.

According to the defect report, during fast-charging or preparation for fast-charging, the infotainment CPU may not cool sufficiently. Higher than expected temperatures could cause the CPU to slow processing or restart, and a lagging or blank center screen display. The problem could cause the rear-view camera display, windshield visibility control settings, drive modes (i.e., Drive, Neutral, or Reverse), and telltales to be unavailable.

On May 3, 2022, Tesla began deploying an OTA firmware update that will improve the management of the CPU temperature and associated communications with elevated temperature operation. This remedy will mitigate temperature elevations in the CPU when the vehicle is fast-charging or preparing to fast-charge, which will prevent slow processing or restart. Tesla’s number for this recall is SB-22-00-009 and the NHTSA campaign number is 22V-296.

Ford F-150 Transmission Shifts Into Neutral While Driving

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Some 2021 Ford F-150 trucks could unexpectedly shift into neutral while driving. The unexpected loss of engine power could increase the chance of an accident.

In February 2022, an issue was brought to Ford’s Critical Concern Review Group (CCRG) about certain 2021 F-150 vehicles equipped with 3.5L GTDI, 2.7L, and 5.0L engines, along with the 10R80 transmission. These trucks were experiencing an increase in Transmission Fluid Pressure along with a Transmission Fluid Pressure Low Diagnostic Trouble Code (DTC) of P0868. This DTC would falsely activate and cause the transmission to shift into a neutral state while the truck was driven. Once the false activation occurs, the vehicle will coast to a stop and the electronic shifter will attempt to engage Park. Once the vehicle comes to a complete stop, the electronic shifter will automatically shift into Park.

According to the engineering investigation, one of the power-train diagnostic logic software branches was turned on in error when these vehicles were produced. Under certain conditions, this diagnostic logic could inadvertently activate the pump gear failure detection logic even though the hardware is still functioning properly. When this happens, the transmission on-board diagnostics will set the DTC P0868, turn on a Wrench Light telltale, and the vehicle’s transmission will shift into a neutral state. As the vehicle slows to a speed below 2 mph/3kph, the electronic shifter will attempt to engage the Park function and will automatically shift into Park when the vehicle comes to a complete stop. The transmission function can be restored by a key-off/key-on cycle.

Between October 2021 and February 2022 there have been 28 warranty claims and one Customer Contact Center report to Ford that potentially related to this concern.

Dealers will correct the problem by updating the Power-train Control Module (PCM) software. Ford’s number for this recall is 22S15 and the NHTSA campaign number is 22V-188.