P1S Factory-verified

GMC · Regular Production Option

API Starter, 12 months

Years 2026–27 Models 9 Factory citations 23

Query this via API →

Also described as API Starter plan, 12 months (fleet)

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Third generation (2024–2027)

2026–2027 Factory-verified

O on all trims; fleet telematics data plan

GM factory document — 2026 gmc acadia fleet order guide, p.61.
GM factory document — 2027 gmc acadia fleet order guide, p.64.

Canyon — Third generation (VSS-T) (2023–2027)

2026–2027 Factory-verified

O on all trims

GM factory document — 2026 gmc canyon fleet order guide, p.86.
GM factory document — 2027 gmc canyon fleet order guide, p.87.

Savana — GMT610 (2003–2027)

2026–2027 Factory-verified

O: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2026), Passenger 1LS, Passenger 1LT

GM factory document — 2026 gmc savana cargo fleet order guide, p.51.
GM factory document — 2026 gmc savana cutaway fleet order guide, p.69.
GM factory document — 2026 gmc savana passenger fleet order guide, p.42.
GM factory document — 2027 gmc savana cargo fleet order guide, p.48.
GM factory document — 2027 gmc savana cutaway fleet order guide, p.35.
GM factory document — 2027 gmc savana passenger fleet order guide, p.41.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

all trims: O

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.134.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra HD — T1XX (2020–2027)

2026–2027 Factory-verified

Pro, SLE, SLT, AT4, AT4X, Denali, Denali Ultimate: O

GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.126.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.120.

Sierra — T1XX (2019–2026)

2026 Factory-verified

GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Terrain — Third generation (2025–2027)

2026–2027 Factory-verified

O on all trims; fleet, fleet daily rental and government order types; fleet telematics data plan

GM factory document — 2026 gmc next generation terrain fleet order guide, p.42.
GM factory document — 2027 gmc terrain fleet order guide, p.43.

Yukon — T1XX (2021–2027)

2026–2027 Factory-verified

2027: O on all trims

GM factory document — 2026 gmc yukon denali fleet order guide, p.108.
GM factory document — 2027 gmc yukon fleet order guide, p.97.

Yukon XL — T1XX (2021–2027)

2026–2027 Factory-verified

2027: O on all trims

GM factory document — 2026 gmc yukon xl denali fleet order guide, p.108.
GM factory document — 2027 gmc yukon xl fleet order guide, p.99.

This page aggregates every documented appearance of P1S in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.