Surburban

June-August 2021 In Austin, Texas, I purchased a new 2021 Chevy Suburban RST with the 3.0 L Duramax June 2021. Had near immediate engine light with the exhaust warnings (next day). The codes and software were reset, went home. Then again about 80 miles later. Same updates/resets. Then again about 280 more miles. Dealer replaced the DEF Tank/Module with sensors and fluid, reset/reprogram. Fourth time about 1000 miles later. Waiting for three weeks with my truck in their parking lot. They are going to put the third Tank/Module/Sensors/Fluid and reset/reprogram again. They have had my vehicle more than I have. They gave me three loaners, a Bolt, a Trax, and a Colorado. Once spent day without a loaner. They are still waiting to "find out" when they will get the new Tank/Module due to chip shortage. Anyone else having the issue still? Stingray