NHTSA Complaint #11712427 — 2024 JEEP WRANGLER

Following a manufacturer over-the-air (OTA) software update released in Fall 2025 and subsequent completion of Safety Recall 68C, my vehicle exhibits new and dangerous driving behavior that did not exist prior to these updates. While operating in electric mode, the vehicle can unexpectedly lose power during acceleration, including at roadway speeds and while climbing hills, creating a risk of sudden deceleration in traffic. Under electric operation, the vehicle accelerates normally up to approximately 45 mph. Beyond that point, electric power output progressively decreases even as accelerator input is maintained or increased. Vehicle speed can decline while the accelerator is further depressed, and the electric power indicator visibly drops. This often results in abrupt internal combustion engine (ICE) engagement, aggressive downshifting, and sudden acceleration. This loss-and-surge behavior is unpredictable and hazardous, particularly in traffic or on inclines. Prior to the OTA update and recall action, the vehicle provided consistent electric power well beyond 45 mph, and ICE engagement was smooth and nearly imperceptible. I consistently achieved approximately 22–23 miles of electric range on the same daily route. Post-update and post-recall, usable electric range has been reduced to approximately 14–15 miles under similar conditions, regardless of weather. The issue also occurs at low speeds, including complete loss of electric momentum while climbing hills, followed by harsh ICE engagement that can cause wheel spin. This behavior raises safety concerns related to power loss and unexpected acceleration. Based on the timing and nature of these changes, I am concerned that software updates may be intentionally limiting battery power output and usable capacity to reduce stress on potentially defective high-voltage batteries rather than correcting the underlying hardware defect. This materially alters vehicle performance and safety and requires investigation.