In September 2016, two Arizona women were killed when their Polaris tipped over and sparked a fire. A 15-year-old girl was killed when the RZR she was a passenger in caught fire in July 2015. Her right leg and left foot were later amputated. In July 2014, an 11-year-old girl from Texas suffered 3rd and 4th degree burns on 60% of her body when the Polaris she was riding in tipped over and ignited. However, no recall was performed, with Polaris issuing a service bulletin which does not require Polaris to issue notice to consumers or the Consumer Product Safety Commission. Customers soon reported plastic panels between the passengers and the engine were melting and smoking and Polaris' safety director at the time believed the vehicle should be recalled. This design creates a hot spot directly behind passengers that can degrade components and ignite debris, fuel and plastic panels. Unlike the previous engine, which had the exhaust cooled by airflow, the ProStar equipped Polaris connected the engine to the exhaust header pipe in the front of the engine, before making a 180 degree turn and exiting at the rear of the vehicle. United States Special Operations CommandДЄ Polaris RZR on fire in the Mojave desertДЇor 2010, developed their own engine for the RZR, known as the ProStar.Portuguese Army ( Special Operations Troops Centre).Army soldiers with Special Operations Task Force / South also used Commercial Off The Shelf (COTS) Polaris RZR 800 Light Tactical All-Terrain Vehicles (LT-ATV), internally transportable by CH-47 Chinook helicopter, and rapidly off-loadable, during operations in 2010 in the Maruf District, Kandahar Province, Afghanistan. The vehicles were delivered from late-January to April 2017. Plans are to field 18 MRZR-Ds per infantry regiment. The vehicles can carry four marines and have a small cargo bed capable of carrying 1,500В lb (680В kg) of payload. The Marines bought the unarmored vehicles because they can fit inside an MV-22 Osprey, enabling them to be deployed from long distances, to provide logistics support to ground combat units, assisting them to travel and transport supplies quicker and easier than previously on foot. Called the Utility Task Vehicle ( UTV), it is designed to be diesel-powered and can run on JP-8 fuel.

Marine Corps signed a $2.5 million contract with Polaris to deliver 144 MRZR-D vehicles.

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