Pacifica and Jeep don’t have the same driveline , so whomever is telling you this has zero knowledge of the product . The Pacifica uses a 6 cyl and a one speed transmission as the Jeep uses a turbo 4 with a 8 spd powertrain that has capability to pick your drive mode , battery size is different , engine management , programming , etc . If it was a transmission issue they would swap out the entire transmission and ship the “ problematic “ one back to corp . Did they scan for codes prior to reflating the software update ? When the powertrain glitch occurred did the engine light come on ? Lots of real facts missing , did they charge the van and see if it runs in electric or ehybrid mode , is the motor constantly running on startup ? You stated that it doesn’t really run , can you expand on what doesn’t really run mean ?