GMC Sierra 1500 Interior by Year
The GMC Sierra 1500 interior catalog covers front legroom and seating capacity for model years 1999 through 2023. Listed front legroom ranges from 41.3 to 45.3 inches, and seating capacity ranges from 3 to 6 seats.
These ranges summarize differences across catalog years and configurations; they are not a single figure that applies to every Sierra 1500. The listed facts do not break down measurements by year or trim, so check the entry for the specific vehicle when comparing versions.
Luggage capacity is not listed here. For any interior figure not shown in the catalog, confirm it on the door jamb or in the owner's manual.
Passenger room and cargo volume where the catalog stores them. Pickup rows often have no luggage volume.
Interior by year
| Year | Seats | Front legroom |
|---|---|---|
| 2023 | 3–6 | 44.5 in |
| 2022 | 3–6 | 44.5 in |
| 2021 | 3–6 | 44.5 in |
| 2020 | 3–6 | 44.5 in |
| 2019 | 3–6 | 44.5 in |
| 2018 | 3–6 | 45.3 in |
| 2017 | 5–6 | 45.3 in |
| 2016 | 3–6 | 45.3 in |
| 2015 | 3–6 | 45.3 in |
| 2014 | 3–6 | 41.3–45.3 in |
| 2013 | 3–6 | 41.3 in |
| 2012 | 3–6 | 41.3 in |
| 2011 | 3–6 | 41.3 in |
| 2010 | 3–6 | 41.3 in |
| 2009 | 3–6 | 41.3 in |
| 2008 | 3–6 | 41.3 in |
| 2007 | 3–6 | 41.3 in |
| 2006 | 3–6 | 41.3 in |
| 2005 | 3–6 | 41.3 in |
| 2004 | 3–6 | 41.3 in |
| 2003 | 3–6 | 41.3 in |
| 2002 | 3–6 | 41.3 in |
| 2001 | 3–6 | 41.3 in |
| 2000 | 3–6 | 41.3 in |
| 1999 | 3–6 | 41.3–41.7 in |