Sun and Sound Package option discount package, not desired

Years 2005, 2014–16, 2018–27 Models 10 Factory citations 25

Also described as Roof, two-tone deleteCustom Interior Trim and Seat CombinationGCWR, 35,000 lb (15,875 kg)Sun, entertainment and destinations package, discount not desiredPackage discount not desiredDiscount, Safe and Secure Package not desiredPackage, luxury, discount not desired

Also documented for Cadillac GMC

Documented applications

Blazer — C1XX (2019–2026)

2026 Factory-verified

2LT, 3LT: not available; RS: O

GM factory document — 2026 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer fleet order guide, p.11.

Corvette — C8 (2020–2027)

2020–2027 Factory-verified

GM factory document — 2020 chevrolet corvette stingray order guide copy corvetteblogger, p.41.
GM factory document — 2021 chevrolet corvette fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet corvette stingray order guide copy corvetteblogger, p.52.
GM factory document — 2023 chevrolet corvette stingray z06 order guide copy corvetteblogger, p.96.
GM factory document — 2024 chevrolet corvette stingray z06 e ray order guide copy corvetteblogger, p.152.
GM factory document — 2025 chevrolet corvette fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet corvette fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet corvette fleet order guide rpo codes, p.1.

Impala — eighth generation (2000–2005)

2005 Factory-verified internal

Kit-only code (2005 order guide p.99, 106, 119).

GM Heritage factory kit — 2005 Chevrolet Impala, p.119.

Monte Carlo — sixth generation (2000–2007)

2005 Factory-verified internal

Kit-only code (2005 order guide p.100, 105, 121).

GM Heritage factory kit — 2005 Chevrolet Monte Carlo, p.121.

Silverado Medium Duty (GM515, 2019–2026)

2025–2026 Factory-verified

GM factory document — 2025 chevrolet silverado 4500 hd 5500 hd and 6500 hd fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 4500 hd 5500 hd and 6500 hd fleet order guide rpo codes, p.1.

Suburban — GMT900 (2007–2014)

2014 Factory-verified internal

Required when only part of the PCJ content is ordered. Trim marks in the 2014 guide: LT, LTZ: O.

GM factory document — 2014 chevrolet suburban fleet order guide wayback, p.2.

Suburban — K2XX (2015–2020)

2015–2016, 2018–2019 Factory-verified internal

for orders that take a package's content without the package: 2015 PCJ; 2016 PDP (LS) or PCJ (LT, LTZ); the Yukon XL K2XX doc names it for its Open Road package; 2018–2019 from GM's 2018 and 2019 Suburban order guides (GM Authority copies)

GM factory document — 2015 chevrolet suburban fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet suburban fleet order guide wayback, p.2.
GM factory document — 2018 chevrolet suburban order guide copy gm authority, p.19.
GM factory document — 2019 chevrolet suburban order guide copy gm authority, p.19.

Tahoe — GMT800 (2000–2006)

2005 Factory-verified internal

the 2005 order guide prints it as "Safe and Secure Package discount not desired"

GM Heritage factory kit — 2005 Chevrolet Tahoe, p.121.

Tahoe — K2XX (2015–2020)

2015–2016, 2018–2019 Factory-verified internal

for orders that take a package's content without the package: 2015 PCJ; 2016 PDP (LS) or PCJ (LT, LTZ); the Yukon XL K2XX doc names it for its Open Road package; 2018–2019 from GM's 2018 and 2019 Tahoe order guides (GM Authority copies)

GM factory document — 2015 chevrolet tahoe fleet order guide wayback, p.3.
GM factory document — 2016 chevrolet tahoe fleet order guide wayback, p.2.
GM factory document — 2018 chevrolet tahoe order guide copy gm authority, p.19.
GM factory document — 2019 chevrolet tahoe order guide copy gm authority, p.19.

TrailBlazer — GMT360 (2002–2009)

2005 Factory-verified

only in: LT; the kit prints it as the PDB discount-not-desired code; the service lists do not print it

GM Heritage factory kit — 2005 Chevrolet Trailblazer, p.115.

This page aggregates every documented appearance of R6X in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.