Engine Stalling After Letting off Brake


Buick Newbie
Buick Ownership
My 2012 Verano would stall after letting off the brake. If I give gas quick and hard enough the car would jerk in front and get going. Is it a vacuum leak in the brake booster? It only happens when the car is warmed up. I went to a store to get something after maybe 30 minutes in traffic (20-30mph), and it happened after I came out from the store and start the car. Having this issue two times in a row now.

It reminds me of my last 2012 Focus. The car had similar issue when it would stall after a period of stop and go traffic and sometimes it won't start right back up. Turned out it was a bad transmission control module.
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