2021 diesel Tahoe engine turn off when driving

[blanchard7684]

Bcm issue or ignition switch issue. Dealer should be able to see if you have latest program for bcm.

 

[nfarios]

Here’s my experience with a similar issue. It was a cracked crank position sensor. If the truck sat for a while I would be able to take short drives without a problem. Once the oil got in to the sensor and made it to the connector, it would start to short out the electronics. I ended up replacing the sensor on my own because the technicians didn’t have the authority to replace it on their own accord with out a bulletin that told them to. Once I disconnected the sensor from the harness it was wet with engine oil and the problem never happened again. I drove the truck from San Antonio to Houston for an initial test and then made it cross country from San Antonio to Los Angeles. Loving my 3.0 regardless of gas prices.