GMC Sierra (from 2014) - fuse box diagram - Auto Genius Dec 30, 2016GMC Sierra (from 2014) – fuse box diagram. Year of production: 2014, 2015, 2016. Engine Compartment Fuse Block. The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle. SilveradoSierra • 2014 Silverado Aux switches : Interior Sep 22, 2014Chevy Truck Forum | Silverado Sierra GMC Truck Forums. 2014 Silverado Aux switches. Sep 22 2014, 7:12pm. I just purchased a 2014 Silverado LT 4.3. I've seen pictures so i'm assuming it's a package option, but I can't seem to find any information about it that's relevant. I'm looking to upgrade my upfitters (Traction control and cargo lamp) to[PDF] GMC Sierra Model Years: 2014 and - GM UPFITTER - Home Contact GM Upfitter Integration for information on whether the information is applicable your vehicle. Pin #1, 4, 14 and 20 are used for Upfitter added/configured circuits NOTE: Refer to the connector pin–out table for connector and terminal part number 2014 GMC Sierra 1500 Trailer Wiring | etrailer Lowest Price Trailer Wiring Guarantee. Installation instructions and lifetime expert support on all purchases of 2014 GMC Sierra 1500 Trailer Wiring. Order online at etrailer or call 800-298-8924. GMC 2014 SIERRA OWNER'S MANUAL Pdf Download. View and Download GMC 2014 Sierra owner's manual online. 2014 GMC Sierra Automobile pdf manual download. Also for: 2014 sierra. Check Trailer Wiring. 174. Transmission Hot Idle Engine. 174. Vehicle in 4WD Low. 174. Vehicle Reminder Messages.