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Chevrolet TSB #A202301230
2021 Chevrolet Trailblazer
TSB Document:
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- SUB - Certain 2021 model year Chevrolet Trailblazer, and 2020-2021 model year Buick Encore GX vehicles, equipped with a continuously variable ratio (CVT) transmission, may experience reduced launch performance during a quick exit from a stop/start event. DTC?s P0746 and P0776 may also set illuminating a Check Engine Light. The main pump in the CVT has a priming delay under certain conditions. Dealers will reprogram the transmission control module (TCM) with updated software.
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