Investigations
High Voltage Coolant Heaters may fail to defrost windshield
NHTSA Audit Query AQ24004 — open, opened 2024-04-03 and involving the LAND ROVER ROVER.
NHTSA investigation AQ24004 is a Audit Query opened on 2024-04-03 and currently open. The subject of record is LAND ROVER ROVER, which places this file inside the Office of Defects Investigation queue for LAND ROVER. Latest activity on this investigation was logged on 2024-04-03 — NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
An Audit Query like AQ24004 is how NHTSA checks that manufacturers are meeting their statutory obligations — things like notifying owners, reporting foreign recalls, and tracking remedy completion rates under TREAD and FMVSS requirements.
Investigators summarized the matter as follows: "In a Part 573 Report dated July 27, 2023, Jaguar Land Rover North America, LLC (JLR) notified NHTSA of a safety-related defect in 2021-2022 Jaguar I-Pace vehicles. This filing was assigned Recall No. 23V-518. JLR noted t..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time. Related LAND ROVER files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.
Investigation Summary
In a Part 573 Report dated July 27, 2023, Jaguar Land Rover North America, LLC (JLR) notified NHTSA of a safety-related defect in 2021-2022 Jaguar I-Pace vehicles. This filing was assigned Recall No. 23V-518. JLR noted that the subject vehicles are equipped with High Voltage Coolant Heaters (HVCH), supplied by Webasto Group (Webasto), that can develop cracking and delamination of the heating element, leading to an inability to defrost the front windshield, which may increase the risk of a crash. In a Part 573 Report dated January 11, 2024, Lucid USA, Inc. (Lucid) notified NHTSA of a safety-related defect in 2022-2023 Lucid Air vehicles. This filing was assigned Recall No. 24V-011. Lucid noted the subject vehicles are equipped with HVCH, supplied by Webasto, that can delaminate, leading to an inability to defrost the front windshield, which may increase the risk of a crash. The purpose of this Audit Query (AQ) is to: 1. Obtain a complete list of purchasers and the quantities for which the same or similar HVCH were supplied; 2. Obtain copies of all written communications initiated by Webasto and sent to its purchasers regarding the subject equipment; and 3. Request Webasto, per 49 CFR 573.3(f), submit a requisite Part 573 Recall Report for defective HVCH installed into motor vehicles of multiple vehicle manufacturers.
About This Investigation Type
An Audit Query (AQ) is conducted to verify manufacturer compliance with safety standards and recall requirements.
Other LAND ROVER Investigations
Rear Seat Belt Stitching Failure and Detachment
2014-2017 Land Rover Range Rover Sport (L494) front steering knuckle fractures
Loss of Brake Power Assist
Spoiler Cover Detachment
Fuel Tank Flange Leak
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. Learn more.
Read our methodology — how this data is sourced, computed, and verified.