OnStar 4G LTE with built-in Wi-Fi hotspot, data trial

Years 2015–19, 2022–23, 2025–27 Models 13 Factory citations 35

Also described as OnStar 4G LTE, Wi-Fi hotspotBuick 4G LTE with available built-in Wi-Fi hotspot, data trial for 1 month or 3GBWi-Fi hotspot capableOnStar 4G LTE, built-in Wi-Fi hotspot, data trialWi-Fi Hotspot capableOnStar 4G LTE with built-in Wi-Fi hotspotOnStar 4G LTEOnStar 4G LTE with built-in Wi-Fi hotspot, 3GB or 3 month data trial

Also documented for Cadillac Chevrolet GMC

Documented applications

Cascada — Delta II (2016–2019)

2016–2019 Factory-verified

all trims: S

GM factory document — 2016 buick cascada order guide copy gm authority, p.2, p.6.
GM factory document — 2017 buick cascada order guide copy gm authority, p.2, p.11.
GM factory document — 2018 buick cascada order guide copy gm authority, p.2, p.11.
GM factory document — 2019 buick cascada order guide copy gm authority, p.2, p.11.

Enclave — C1XX (2018–2024)

2018, 2022–2023 Factory-verified

S on all trims; the guide gives this code for retail sales from 5/1/2018 and, for sales through 4/30/2018, as OnStar 4G LTE with a 3-month or 3GB trial

GM factory document — 2018 buick enclave fleet order guide wayback, p.1.
GM factory document — 2022 buick enclave order guide copy nhtsa docket, p.5, p.22.
GM factory document — 2023 buick enclave order guide copy autoevolution wayback, p.5, p.21.

Enclave — VSS-S (2025–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 buick all new enclave fleet order guide, p.4.
GM factory document — 2026 buick enclave fleet order guide, p.4.
GM factory document — 2027 buick enclave fleet order guide, p.4.

Encore — Gamma II (2013–2022)

2018–2019 Factory-verified

all trims: S; 2018: 3 months or 3GB trial; 2019: 1-month trial, worded Buick 4G LTE

GM factory document — 2018 buick encore order guide copy gm authority, p.3, p.17.
GM factory document — 2019 buick encore order guide copy gm authority, p.2, p.15.

Encore GX — VSS-F (2020–2027)

2025–2027 Factory-verified

Preferred, Sport Touring, Avenir: S

GM factory document — 2025 buick encore gx fleet order guide, p.4.
GM factory document — 2026 buick encore gx fleet order guide, p.3.
GM factory document — 2027 buick encore gx fleet order guide, p.3.

Envision — D2XX, imported from China (2016–2020)

2016–2019 Factory-verified

all trims: S; the 2019 guide calls it Buick 4G LTE, with a 1 month or 3GB data trial from May 1, 2018

GM factory document — 2016 buick envision order guide copy gm authority, p.2, p.12.
GM factory document — 2017 buick envision order guide copy gm authority, p.3, p.15.
GM factory document — 2018 buick envision order guide copy gm authority, p.3, p.15.
GM factory document — 2019 buick envision order guide copy gm authority, p.3, p.4, p.16, p.17.

Envision — E2XX (2021–2027)

2025–2027 Factory-verified

2027: all trims: S

GM factory document — 2025 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide, p.3.

Envista — VSS-F (2024–2027)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2025 buick envista fleet order guide, p.3.
GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.3.

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: all trims: S; the 2019 guide calls it Buick 4G LTE

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.2.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.2.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.3.

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2015 Factory-verified

2015: all groups: S; new for 2015

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.2.

Regal — E2XX (2018–2020)

2018–2019 Factory-verified

2019: all trims: S (2019 Sportback order guide); the Sportback list also prints Buick 4G LTE for it; the 2019 guide calls it Buick 4G LTE

GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1.
GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1.
GM factory document — 2019 buick regal sportback order guide copy gm authority, p.3.

Regal — Epsilon II, 5th gen (2011–2017)

2015–2016 Factory-verified

new for 2015 (GM's 2015 list); 2016: all groups: S; 3GB or 3 month data trial

GM factory document — 2016 buick regal order guide copy gm authority, p.3, p.17.

Verano — Delta II (2012–2017)

2016 Factory-verified

2016: all trims: S

GM factory document — 2016 buick verano fleet order guide wayback, p.2.

This page aggregates every documented appearance of VV4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.