2020 GMC Sierra Owner’s Manual

2020 GMC Sierra Owner’s Manual Review

Our website provides the latest GMC owner's manuals with essential information on vehicle operation, care, and maintenance. On this page, you can find the 2020 GMC Sierra Owner’s Manual in PDF, available for full-screen online viewing or download to your computer or smartphone.

If your car is not listed on our website or if you have any questions, please check manuals for other model years below.

As for the interior, it almost completely repeats the version from Chevy. But as we all know, GMC is the more “luxury” version of Chevrolet. Therefore, in terms of material quality and the number of interior trim variations, the 2020 GMC Sierra slightly surpasses the Chevrolet. From this comes the rich list of equipment: fully LED optics, 22-inch wheels, adaptive cruise control, emergency braking system, blind spot monitoring, lane-keeping assist, seat ventilation and memory, heated steering wheel, 360-degree camera, color head-up display (a first for the class), 8-inch screen with Apple CarPlay and Android Auto support, rearview mirror display, keyless access, Bose audio system, and a whole range of other assistants.

Naturally, as before, the 2020 GMC Sierra is available in a couple of cab versions: Double (extended cab) and Crew Cab (double cab) – and bed versions: standard (2018 mm) and short (1776 mm).

The engine lineup is already well known from the pickup with the cross-shaped logo. This includes a turbocharged 2.7-liter four-cylinder (314 hp, 473 Nm) and two improved naturally aspirated V8 engines: 5.3 liters (316 hp, 519 Nm) and 6.2 liters (426 hp, 621 Nm) with the Dynamic Fuel Management system, which has 17 cylinder operation schemes and, depending on the load, can stop or resume oil supply to the hydraulic valve lifters. The previous engines with “cylinder deactivation” of 4.3 and 5.3 liters also remain in service. Depending on the choice of power unit, the truck can be equipped with three automatic transmissions with 6, 8, or 10 speeds.

We also have owner's manuals for other vehicle years:

• 2024 GMC Sierra Owner’s Manual
• 2023 GMC Sierra Owner’s Manual
• 2012 GMC Sierra Owner’s Manual
• 2013 GMC Sierra Owner’s Manual
• 2014 GMC Sierra Owner’s Manual
• 2015 GMC Sierra Owner’s Manual
• 2000 GMC Sierra Owner’s Manual
• 2016 GMC Sierra Owner’s Manual
• 2001 GMC Sierra Owner’s Manual
• 2017 GMC Sierra Owner’s Manual
• 2002 GMC Sierra Owner’s Manual
• 2018 GMC Sierra Owner’s Manual
• 2003 GMC Sierra Owner’s Manual
• 2019 GMC Sierra Owner’s Manual
• 2004 GMC Sierra Owner’s Manual