The 2026 Fleet Order Guide is out
https://www.gmfleetorderguide.com/brand-list
Silverado and Sierra get two new colors and lose 2 colors.
Both get the "new" (RWQ) LPO, Exhaust Calibration
Silverado loses removable carpet inserts.
RWQ = "NEW!LPO, Exhaust Calibration. more aggressive sport exhaust valve tuning. - Requires (L87) 6.2L EcoTec3 V8 engine"
So, the RWQ is apparently an add on to NPP "Active Exhaust, Dual, sport-mode enabled. -Required and only available with (L87) 6.2L EcoTec3 V8 engine."
Chevrolet Truck Silverado 1500 Retail and Fleet
New Features:
Exterior color (G42) White Sands
Exterior color (G4J) Polar White Tricoat
(RWQ) LPO, Exhaust Calibration
(PDJ) LPO, Realtree Appearance Package
Changes:
(CWM) Technology Package is now standard on (3LT) ZR2 trim
(QK2) Multi-Flex tailgate is now standard on (3LT) ZR2 trim
Deletions:
Exterior color (G1W) Iridescent Pearl Tricoat
Exterior color (GNO) Slate Gray Metallic
(G0S) Realtree Special Edition
(BKF) Floor liners, with removable carpet inserts, front
(BKE) Floor liners, with removable carpet inserts, rear
GMC Sierra 1500 Retail and Fleet
New Features:
Exterior color (G4J) Glacier White Tricoat
Exterior color (G42) Coastal Dune
(RWQ) Exhaust calibration, LPO
Deletions:
Exterior color (G1W) White Frost Tricoat
Exterior color (GNO) Thunderstorm Gray