New Delhi, Nov. 14 -- Tata Motors Passenger Vehicles Ltd slipped into losses in the September quarter as its British subsidiary Jaguar Land Rover faced output cut and pared its profit margin guidance due to a cyberattack at manufacturing plants, higher US tariffs and a new tax in China.

Jaguar Land Rover, which accounts for 80% of its newly demerged parent's revenue, cut its operating profit margin guidance to 0-2% from 5-7% for the 2025-26 fiscal amid multiple headwinds, even as it works to bring production back to the original level. JLR has projected to end the year with a negative cash flow of 2.2-2.5 billion euros, moving away from its earlier guidance of ending with nearly no free cash flow.

Tata Motors Passenger Vehicle Ltd's (TM...