Tag Archives: window defrost failure

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.

Jaguar I-Pace Coolant Heater Failure

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Rrecently, Jaguar has faced an issue with a small number of its 2021-2022 I-Pace vehicles, where a high voltage coolant heater failure could lead to a defroster malfunction, posing potential risks to the drivers. In response to customer complaints and reports of cabin heating loss, a Product Safety and Compliance Committee (PSCC) investigation was initiated in April 2022. The findings revealed a concerning trend, prompting Jaguar to take action and issue a recall.

Jaguar became aware of the potential problem in April 2022 when they began receiving reports of a loss of cabin heating in specific I-Pace models. In response, the Product Safety and Compliance Committee (PSCC) launched an investigation into the matter. An engineering team was assembled to look into the nature of these reports to identify the potential failure modes, and understand their potential consequences.

Throughout the investigation Jaguar collaborated with the component suppliers to determine the underlying factors contributing to these reported field failures. As the investigation progressed, the PSCC requested a detailed analysis of high voltage coolant heater build periods to ascertain whether there was any discernible pattern or trend associated with the failure occurrences. By analyzing the data from various sources, the team worked to identify any consistent factors that might help them understand the root cause of the issue.

After an examination of the investigation’s outcome in June 2023, it was determined that the consequences of a high voltage coolant heater failure, coupled with the identified trend and pattern of incidents, were significant enough to warrant an immediate recall. The decision to recall the affected vehicles was made to mitigate any potential risks.

Owners of the affected vehicles are being contacted by Jaguar, requesting them to return to their nearest Jaguar dealership for a high voltage coolant heater replacement.

The recall, identified by Jaguar as H448, is officially registered with the National Highway Traffic Safety Administration (NHTSA), campaign number 23V-519. To date, there have been 64 field reports in the United States related to this issue.