- 2014–2019 Factory-verified
2LT, 3LT, 2LZ, 3LZ, 3ZR: S; 2019: from GM order-guide copies (Corvette Action Center, GM Authority)
Also described as Theft-deterrent system, body security content
Also documented for CadillacGMC
Documented applications
- 2015–2019 Factory-verified
LT, LTZ: A; LS: not available; LT: requires PCK (2016: or PDA); includes UTR, UTV, UTU, door lock shields and glass-break sensors; the guides name it Theft Protection Package; 2018–2019 from GM's 2018 and 2019 Suburban order guides (GM Authority copies)
- 2015–2019 Factory-verified
LT, LTZ: A; LS: not available; LT: requires PCK (2016: or PDA); includes UTR, UTV, UTU, door lock shields and glass-break sensors; the guides name it Theft Protection Package; 2018–2019 from GM's 2018 and 2019 Tahoe order guides (GM Authority copies)
This page aggregates every documented appearance of UTT in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.