AM/FM stereo radio without clock, ETR full feature

Years 1986–88, 2018–19, 2025–27 Models 7 Factory citations 14

Also described as Radio, AM/FM stereo, ETR, full featureTire pressure displayRadio, AM/FM stereo, ETR, seek and scanRadio, AM/FM stereo, electronically tuned, seek and scanTire pressure display, by tire

Also documented for Buick GMC

Documented applications

Caprice — third generation, B-body (1983–1990)

1986, 1988 Factory-verified

GM Heritage factory kit — 1986 Chevrolet Caprice, p.42.
GM Heritage factory kit — 1988 Chevrolet Caprice, p.69.

Cavalier — first generation (1982–1987)

1986, 1987 Factory-verified

seek and scan

GM Heritage factory kit — 1986 Chevrolet Cavalier, p.38.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.38.

Celebrity — A-body (1982–1990)

1986–1987 Factory-verified

GM Heritage factory kit — 1986 Chevrolet Celebrity, p.42.
GM Heritage factory kit — 1987 Chevrolet Celebrity, p.42.

Cruze — second generation (2016–2019)

2018–2019 Factory-verified

2018: sedan S on all; hatch S on all; 2019: sedan S on all; hatch S on all

GM factory document — 2018 chevrolet cruze order guide copy gm authority, p.46, p.54, p.87.
GM factory document — 2019 chevrolet cruze order guide june 1 2018 copy gm authority, p.33, p.38, p.71.

El Camino — fifth generation (1983–1987)

1986 Factory-verified

The 1987 order guide prints UKA, so 1987 is not claimed

GM Heritage factory kit — 1986 Chevrolet El Camino, p.6.

Monte Carlo — fourth generation (1983–1988)

1986–1987 Factory-verified

includes dual rear speakers

GM Heritage factory kit — 1986 Chevrolet Monte Carlo, p.32.
GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.

Trailblazer — First generation, VSS-F (2021–2027)

2025–2027 Factory-verified

all trims: S; does not monitor the spare tire

GM factory document — 2025 chevrolet trailblazer fleet order guide, p.4.
GM factory document — 2026 chevrolet trailblazer fleet order guide, p.4.
GM factory document — 2027 chevrolet trailblazer limited fleet order guide, p.5.

This page aggregates every documented appearance of UK4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.