Automatic headlamp control (Twilight Sentinel)

Years 1982–85, 1987, 1998, 2008–09 Models 4 Factory citations 3

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Also described as Headlamps control, automatic on-offHeadlamp control, Twilight SentinelHeadlamps, automatic on and off

Also documented for Cadillac Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Century — A-body (1982–1996)

1982–1985 Single-source

Enclave — Lambda / GMT967 (2008–2017)

2008–2009 Factory-verified

the 2009 list marks it not for use after the 2009 model year (use T83), in one reading, and after the 2009 global or new major programs, in another.

GM factory document — 2008 buick enclave rpo code list, p.1.
GM factory document — 2009 buick enclave rpo code list, p.1.

Regal — G-body (1983–1987)

1987 Confirmed

gnttype.org's 1987 option sheet

Skylark — N-body (1992–1998)

1998 Factory-verified

GM factory document — 1998 buick skylark rpo code list, p.1.

This page aggregates every documented appearance of T82 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.