K4E ✓ Factory-verified

Buick · Regular Production Option

Battery, 70AH, 12 volt, 760 cold-cranking amps

Years 2025–26 Models 1 Factory citations 4

Query this via API →

Also documented for ChevroletGMC

Documented applications

Envista — VSS-F (2024–2027) →

• 2025–2026 ✓ Factory-verified

  all trims: S

  ⛭ GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2025 buick envista fleet order guide, p.6.

  ⛭ GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2026 buick envista fleet order guide, p.6.

This page aggregates every documented appearance of K4E in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.