2016 Transmission Software update

AE1M · 2020-11-18T19:58:48+0000

Took 2016 Silverado HC 1500 in for service and dealer found a software update for ECM and TCM Code#08YN50455501 (what my repair order says). Anyone know what this is for? Truck seems less responsive to acceleration. Bob

By AE1M
November 18, 2020 in 2014-2018 Silverado 1500 & Sierra 1500

https://www.gm-trucks.com/forums/topic/245201-2016-transmission-software-update/

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