Buggy software update causes powertrain failures in Jeep Wrangler 4xe hybrids

A recent over-the-air software update released by Jeep on October 10, 2025, for the Uconnect infotainment system in Jeep Wrangler 4xe hybrids caused serious powertrain malfunctions. The flawed update led to vehicles losing power while driving, stranding owners and creating hazardous situations, including failures at highway speeds. Jeep quickly pulled the update after reports emerged and advised owners who had not yet installed it to ignore it, while recommending those who had installed it to avoid using hybrid or electric driving modes until a fix was issued. The update did not immediately disable vehicles but caused failures during operation, resulting in emergency mode activations and loss of propulsion. Jeep issued a fix shortly after and encouraged owners to apply it. This incident highlights the risks of deploying software updates without thorough testing and the dangers posed by OTA updates that affect critical vehicle systems. Jeep and its parent company Stellantis responded swiftly to the crisis but faced criticism for the timing and handling of the rollout.