× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
P2175 Sudden downshift to 1st gear 6L-80
Posted to Transmission Forum on 3/9/2021 10 Replies

We put a factory remanufactured transmission in this truck about 3,000 miles ago and all was good until a few days ago. He was driving along and the vehicle suddenly down shifted into first gear. He pulls over, and shuts the vehicle off for a few minutes and t... Login to read more.

10 Replies Received (View Replies)

 

car Vehicle Data

2016 GMC Sierra 1500 Denali 5.3L

Engine5.3 L
Trans6-speed Automatic (Electronic)

car Vehicle Data

2016 GMC Sierra 1500 Denali 5.3L

Engine5.3 L
Trans6-speed Automatic (Electronic)