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January 1, 2004 Service bulletin

Allison LCT1000 will not shift from park due to ice, snow or mud build-up on shift linkage

Chevrolet technical service bulletin 01856 for 2001-2004 Chevrolet Silverado and 2001-2004 GMC Sierra.

Bulletin number
01856
Component
Power train: automatic transmission: lever and linkage: column shift
Summary
Allison lct1000 will not shift from park due to ice, snow or mud build-up on shift linkage. Mr

Owners of these vehicles have filed 343 complaints in the transmission category.

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