OnStar, 2 years Directions and Connections service

Years 1994, 2007, 2014–15 Models 6 Factory citations 5

Also described as Powertrain package, enhancedOnStar Directions and Connections service, 1 additional yearOnStar Directions and Connections, 1 additional year (fleet)

Documented applications

S-10 Blazer — First generation (1983–1994)

1994 Factory-verified

L35 4.3L CPI V6, M30 4 speed electronic automatic and engine and transmission oil coolers

GM Heritage factory kit — 1994 Chevrolet S 10 Blazer, p.21.

Camaro — Gen 5 Zeta (2010–2015)

2014 Confirmed

GM Authority 2014 RPO list

Corvette — C7 (2014–2019)

2014–2015 Factory-verified

all models: O; 2015: from GM order-guide copy (Corvette Action Center)

GM factory document — 2014 chevrolet corvette stingray fleet order guide wayback, p.1.

Impala — ninth generation (2006–2016)

2007 Factory-verified

Fleet or government orders. Not on the factory lists.

GM Heritage factory kit — 2007 Chevrolet Impala, p.129.

Tahoe — GMT900 (2007–2014)

2007 Factory-verified

OnStar fleet code from the 2007 kit order guide (fleet or government order types); the service lists do not print it. MSRP $399; the RFB footnote names R8G or R8Y as the plans that, with UE1, give two years.

GM Heritage factory kit — 2007 Chevrolet Tahoe, p.144, p.172, p.177.

TrailBlazer — GMT360 (2002–2009)

2007 Factory-verified

OnStar fleet code from the 2007 kit order guide (fleet or government order types); the service lists do not print it.

GM Heritage factory kit — 2007 Chevrolet Trailblazer, p.153.

This page aggregates every documented appearance of R8Y in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.