Preferred package

Years 2014–16, 2018–19, 2021, 2025–27 Models 6 Factory citations 16

Query this via API →

Also described as LPO, Adventure PackageConvenience packageLPO, storage packageSLE preferred package

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

2025: AT4: O; Elevation, Denali: not offered; 2026–2027: AT4: O; Elevation, Denali, Denali Ultimate: not offered; includes EU2 and VQO

GM factory document — 2025 gmc acadia fleet order guide, p.17.
GM factory document — 2026 gmc acadia fleet order guide, p.17.
GM factory document — 2027 gmc acadia fleet order guide, p.19.

Canyon — Second generation (GMT31XX) (2015–2022)

2015–2016, 2021 Factory-verified

2015–2016: Canyon: O; SL, SLE, SLT: not offered; includes ATG, K34, C49, UTJ and PPA in 2015–2016; the 2021 guide names it in its notes (A91 and others come with it)

GM factory document — 2015 gmc canyon fleet order guide wayback, p.2.
GM factory document — 2016 gmc canyon fleet order guide wayback, p.5.
GM factory document — 2021 gmc canyon fleet order guide wayback, p.1.

Hummer EV Pickup (2022–2027)

2025–2026 Factory-verified

GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc hummer ev pickup fleet order guide rpo codes, p.1.

Sierra HD — GMT900 (2007–2014)

2014 Factory-verified

the guides give it different contents on the Work Truck (deep-tint glass, 17 inch machined aluminum wheels, locking EZ-Lift tailgate, fog lamps, chrome grille) and on the SLE (audio, Bluetooth, fog lamps, tailgate items)

GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2014 gmc sierra 3500hd fleet order guide wayback, p.2.

Sierra HD — K2XX (2015–2019)

2015, 2018–2019 Factory-verified

driver 10-way power seat (AG1, with the AZ3 bench), remote start (BTV), front fog lamps (T3U), universal home remote (UG1), rear-window defogger (C49), tilt and telescoping column (N37), 110-volt outlet (KI4) and dual-zone automatic climate control (CJ2); 2015 marks: Sierra, SLT: not offered; SLE: O; 2018: GM's 2018 Sierra 2500HD order guide

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2019 gmc sierra 2500hd fleet order guide wayback, p.1.
GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.14.

Sierra — K2XX (2014–2019)

2014, 2016, 2018 Factory-verified

printed twice in each guide: SLE Preferred Package on the SLE and SLT Preferred Package on the SLT; the Silverado K2XX doc reads it as an LT convenience package.

GM factory document — 2014 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2018 gmc sierra 1500 order guide copy gm authority, p.89.

This page aggregates every documented appearance of PCM in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.