MH1 ✓ Factory-verified

Pontiac · Regular Production Option

Transmission, automatic 4 speed, HMD, 4T80-E, electronic converter clutch

Years 2005 Models 1 Factory citations 1

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Also documented for BuickCadillacChevroletOldsmobile

Documented applications

Bonneville — Tenth generation (2000–2005) →

• 2005 ✓ Factory-verified
  ⛭ GM factory document — 2005 pontiac bonneville rpo code list, p.1.

This page aggregates every documented appearance of MH1 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.