NHTSA Complaint #11441112 — 2009 CHEVROLET SILVERADO 1500 POWER TRAIN

Complaint Details

ODI Number	11441112
Vehicle	2009 CHEVROLET SILVERADO 1500
Component	POWER TRAIN
Date of Incident	November 19, 2021
Date Filed	November 19, 2021
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NC

Consumer Description

For the last few months, my Silverado 1500 Hybrid has been experiencing "bump jerk" phenomenon related to the Hybrid mode auto stop mode and the auxiliary transmission pump intermittently not operating correctly. This issue is intermittent. Sometimes in autostop, the truck behaves normally in Hybrid mode. However, when the auxiliary transmission pump is not operating correctly in auto stop mode and below 25 mph, the truck is at risk of not moving forward in proportion to throttle response as well as rolling backward if my foot is let off the brake while in traffic. After some research, this issue is described in PIP4751G.

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