My 2019 has just over 36000 miles, just out of warranty. Line failed, got the message to shut down engine. GM only gave me a partial credit for the repair. This is absolutely unacceptable. Because I don’t live in Alaska or Canada I’m not covered by the service bulletin, even though it’s been below freezing here for 3 weeks. Waiting to hear back from them if they’ll make this right. Truck is still at dealership waiting to be repaired, still waiting to find out if there’s engine damage.