General Motors option code
TT5
TT5: a General Motors factory option code reused for more than one part across 1980–1985 and 4 models — see the table for what it named each year, with installs and price where a source states them.
General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.
4 models · 6 model years · 6 sources
Every sourced appearance
| Year | Model | As named that year | Price | Installs |
|---|---|---|---|---|
| 1980 | Buick Riviera | Tungsten Halogen Upper Beam Headlamps (std. on S-Type) order code (Buick option code) | $27 | Unknown |
| 1980 | Pontiac Firebird and Trans Am | Halogen Headlights (Hi Beam Only) RPO/UPC | $27 | Unknown |
| 1981 | Buick Riviera | Tungsten Halogen High Beam Headlamps (std. on T Type) order code (Buick option code) | $27 | Unknown |
| 1981 | Pontiac Firebird and Trans Am | Halogen Headlights (Hi Beam Only) RPO/UPC | $29 | Unknown |
| 1982 | Chevrolet El Camino SS | Halogen hi-beam headlamps RPO | $10 | Unknown |
| 1983 | Buick Riviera | Tungsten-halogen Headlamps (std. on T-type) order code (Buick option code) | $22 | Unknown |
| 1983 | Chevrolet El Camino SS | Halogen hi-beam headlamps RPO | $10 | Unknown |
| 1983 | Chevrolet Monte Carlo SS | Halogen hi-beam headlamps RPO | Unknown | Unknown |
| 1984 | Chevrolet El Camino SS | Halogen hi-beam headlamps RPO | $10 | Unknown |
| 1985 | Buick Riviera | Halogen Lights (Std. T-Type) order code (Buick option code) | $25 | Unknown |
Every row traces to the source it links from on that model's own year page; this table only collects them in one place.