Wi-Fi hotspot capable

Years 2015–18, 2023, 2025–27 Models 16 Factory citations 45

Also described as 4G LTE Wi-Fi hotspotOnStar 4G LTE and built-in Wi-Fi hotspotOnStar 4G LTE, built-in Wi-Fi hotspotOnStar 4G LTE Wi-Fi hotspotOnStar with 4G LTE and built-in Wi-Fi hotspot, includes 3GB or 3 months of data trial, whichever comes firstOnStar with 4G LTE

Also documented for Buick Chevrolet GMC

Documented applications

ATS — Alpha (2013–2019)

2015, 2018 Factory-verified

OnStar 4G LTE in the 2015 guide, Cadillac 4G LTE with a 3 month or 3GB data trial in the 2018 guides

GM factory document — 2015 cadillac ats coupe fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats coupe fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats sedan fleet order guide wayback, p.2.
GM factory document — 2018 cadillac ats v fleet order guide wayback, p.2.

CT4 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 cadillac ct4 fleet order guide, p.3.
GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.3.
GM factory document — 2026 cadillac ct4 fleet order guide, p.3.
GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.4.

CT5 — Alpha 2 (2020–2026)

2023, 2025–2026 Factory-verified

Premium Luxury, Sport: S; V-Series, V-Series Blackwing: S

GM factory document — 2023 cadillac ct5 v ct5 v blackwing fleet order guide wayback, p.1.
GM factory document — 2025 cadillac ct5 fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac ct5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac ct5 fleet order guide, p.3.
GM factory document — 2026 cadillac ct5 fleet order guide, p.3.
GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide, p.3.
GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide, p.4.

CT6 — Omega (2016–2020)

2017 Factory-verified

all trims; 3 month or 3GB data trial

GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2.

CTS — Alpha (2014–2019)

2015, 2018 Factory-verified

Vsport, Vsport Premium: S

GM factory document — 2015 cadillac cts sedan fleet order guide wayback, p.2.
GM factory document — 2018 cadillac cts sedan fleet order guide wayback, p.2.

Escalade IQ — Ultium BEV (2025–2027)

2025–2027 Factory-verified

GM factory document — 2025 cadillac all electric escalade iq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric escalade iql fleet order guide rpo codes, p.1.

Escalade — K2XX (2015–2020)

2015–2017 Factory-verified

2015: S on all trims; the lists read mobile internet connectivity

GM factory document — 2015 cadillac escalade fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.18.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.38.

Escalade — T1XX, 5th gen (2021–2027)

2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2023 cadillac 23 escalade escalade esv electrical body builder sm en us 2022oct25, p.13.
GM factory document — 2025 cadillac new escalade escalade v fleet order guide, p.3.
GM factory document — 2027 cadillac escalade escalade v fleet order guide, p.5.

Lyriq — BEV3 (2023–2027)

2023, 2025–2027 Factory-verified

all trims: S; Professional Vehicle (S)

GM factory document — 2023 cadillac all new electric lyriq fleet order guide wayback, p.3.
GM factory document — 2025 cadillac all electric lyriq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric lyriq professional vehicle fleet order guide rpo codes, p.1.

Optiq — BEV3 (2025–2027)

2025–2027 Factory-verified

GM factory document — 2025 cadillac all electric optiq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric optiq optiq v fleet order guide rpo codes, p.1.

SRX — Theta Premium / GMT166 (2010–2016)

2016 Confirmed

all trims: S; GM's 2016 SRX order guide (GM Authority's copy, published September 18, 2015)

Vistiq — BEV3 (2026–2027)

2026–2027 Factory-verified

all trims: S

GM factory document — 2026 cadillac all electric vistiq fleet order guide, p.57.
GM factory document — 2027 cadillac all electric vistiq fleet order guide, p.57.

XT4 — E2 (2019–2025)

2025 Factory-verified

Premium Luxury, Sport: S

GM factory document — 2025 cadillac xt4 fleet order guide, p.3.
GM factory document — 2025 cadillac xt4 fleet order guide rpo codes, p.1.

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 cadillac xt5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac xt5 professional vehicles fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac xt5 fleet order guide, p.4.
GM factory document — 2025 cadillac xt5 fleet order guide, p.25.
GM factory document — 2026 cadillac xt5 fleet order guide, p.4.
GM factory document — 2026 cadillac xt5 fleet order guide, p.24.

XT6 — C1XX (2020–2025)

2025 Factory-verified

All trims: S

GM factory document — 2025 cadillac xt6 fleet order guide, p.4.
GM factory document — 2025 cadillac xt6 fleet order guide, p.65.

XTS — Epsilon II, enlarged (2013–2019)

2015 Confirmed

provides a Wi-Fi hotspot; new for the model year, with a new antenna (GM Authority 2015 XTS changes); the 2016 XTS Professional article lists it as new for 2016, which is not claimed (that article does not credit GM for its lists)

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