Issue:
On certain vehicles, a problem with the fuel pump may cause reduced fuel flow to the engine. If this happens, you may notice engine hesitation and the check engine light may turn on. This could also result in a sudden engine stall while driving and you may not be able to restart it.

Safety Risk:
A sudden loss of engine power could increase the risk of a crash.

Corrective Actions:
General Motors will notify owners by mail and instruct you to take your vehicle to a dealership to replace the fuel pump module.