- 2019, 2025–2026 Factory-verified
LT trim; 2019: 1NK26 and 1NR26, V6 leather; 2025–2026: model numbers printed 1NK26 and 1NR26; perforated leather-appointed seats (H0Y)
Also described as Equipment group, 3LTPackage, LT option 3Equipment group 3LT (Stingray and Grand Sport)Equipment group 3LTEquipment group 3LT, RSEquipment group 3LT, LT, CNGTrim group, 3LTTrim group, LT, extended rangeTrim group, ZR2Equipment group: LT3 (3LT)Preferred equipment group, LT (3LT)Trim group, LT Leather
Documented applications
- 2007–2008 Factory-verified
2007 comes from the 2007 kit order guide, whose column headings show it; the 2007 factory list has no entry.
GM Heritage factory kit — 2007 Chevrolet Cobalt, p.119.
- 2007–2009 Factory-verified
The NICB 2012 manual prints "Premium 3LT" in its 2011 column; 2011 is not claimed because no 2011 factory list exists.
- 2014–2019 Factory-verified
only in: Stingray, Grand Sport; 2014, 2019: from GM order-guide copies (Corvette Action Center; 2019 also GM Authority)
- 2020–2027 Factory-verified
only in: Stingray, Grand Sport, Grand Sport X; Stingray coupe 1YC07 and convertible 1YC67 in the 2020–2024 guides
- 2007 Factory-verified
Equipment group in the 2007 kit order guide.
GM Heritage factory kit — 2007 Chevrolet Equinox, p.83.
- 2018 Single-source
NICB series LT (3LT) NICB 2018 p.168
- 2019 Factory-verified
FWD and AWD, LH7 diesel
- 2020–2021 Disputed
sources conflict: NICB 2020 p.164 and NICB 2021 p.169 print it, but GM Authority 2020 changes page says 3LT and 3LZ ended with the diesel after 2019, and its 2021 page lists 3LZ as dropped for 2021 (so on sale in 2020)
- 2023 Single-source
NICB series RS (3LT) NICB 2023 p.154; NICB 2024 prints the 2024 RS without a group code
- 2006–2007 Factory-verified
LT; the order guides print it as a column heading only, with no description.
GM Heritage factory kit — 2006 Chevrolet Impala, p.111.GM Heritage factory kit — 2007 Chevrolet Impala, p.113.
- 2025–2027 Factory-verified
page 1 trim headings and the color and trim page show it
- 2027 Factory-verified
- 2006–2007 Factory-verifiedGM Heritage factory kit — 2006 Chevrolet Silverado, p.231.GM Heritage factory kit — 2007 Chevrolet Silverado, p.234.
- 2025–2027 Factory-verified
only in: 2500 HD; ZR2: available on Crew Cab CK20743
- 2023–2026 Factory-verified
trim group printed under the ZR2 heading of the guides; the guide limits it to 4WD Crew Cab Short Bed;
- 2007 Factory-verified
Named as an equipment group in the 2007 kit's order-guide pages, where p.143 pairs LS (1LS), LT (1LT), LT (2LT), LT (3LT) and LTZ (1LZ); no GM list prints it.
GM Heritage factory kit — 2007 Chevrolet Tahoe, p.131, p.143.
- 2018–2020 Factory-verified
LT Leather: S; FWD and AWD; 2020: GM Authority's 2020 changes page, its BGP lines (BGP available on 3LT; BGP adds KI3 on 3LT) and its KI3 line (KI3 in BGP on 3LT)
- 2006–2008 Factory-verified
the 2006 kit prints the group in its color and trim table; the 2006 lists do not print it
GM Heritage factory kit — 2006 Chevrolet Uplander, p.149.
This page aggregates every documented appearance of 3LT in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.