No First Gear

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
1-3 Clutch Assembly	Inspect for damaged 1-3 clutch piston assembly. Inspect for worn or damaged 1-3 splines.
Drive Motor with Generator Position 2	Inspect splines. Inspect HV connections.
Hybrid Low 1-2 Clutch Assembly	Inspect for damaged 1-2 clutch piston assembly. Inspect for worn or damaged 1-2 splines.