Service and repair manuals for 4 model years of the Hummer H1, 2002 to 2006. Each manual is matched to one exact year — the specifications and procedure sequences are the ones Hummer published for that year's engine and trim, not values carried across the whole production run.
Engines across the range: 6.5L V8 — OHV, turbocharged · 6.6L V8 — OHV, turbocharged.
Federal safety record, all years: 1 recalls, 7 owner complaints and 66 technical service bulletins are logged for the H1. Refreshed 2026-08-21.
01 / Model yearsChoose your H1 year
| Year | Price | Recalls | Engines | Trims | |
|---|---|---|---|---|---|
| 2006 | $29.99 | 1 | 6.6L V8 | Alpha Sport Utility 4-Door | details → |
| 2004 | $29.99 | — | 6.5L V8 | Base Sport Utility 4-Door | select |
| 2003 | $29.99 | — | 6.5L V8 | Base Sport Utility 2-Door · Base Sport Utility 4-Door | select |
| 2002 | $29.99 | — | 6.5L V8 | Base Sport Utility 2-Door · Base Sport Utility 4-Door | select |
02 / InsideSample pages
From the 2006 H1 manual.
03 / ContentsWhat the manual covers
- General Information 1,501
- Transmission 326
- Engine Performance 74
- Valve Body Assembly to Transmission Case 12
- N.m 108
- Flange/Yoke to Output Shaft 123
- Speed Sensor to Torque Converter Housing 12
- Piston Housing to Transmission Case 56
- Mode Switch (IMS) Assembly Bolt to 10
- Spring to Control Valve Body Assembly 12
- Transmission Oil Pump Cover Assembly 26
- Oil Pan to Transmission Case 26
- Low and Reverse Clutch Piston Housing 12
- Take-Off (PTO) Cover to Transmission Case 43
- Shift Valve Body to Main Valve Body 12
- Bracket to Torque Converter Assembly 27
- Switch to Main Valve Body Assembly 12
- Assembly to Torque Converter Housing 56
04 / Other yearsOther H1 years
2004 Hummer H1 · $29.99 select →
Engines: 6.5L V8 — OHV, turbocharged. Trims: Base Sport Utility 4-Door.
No recalls on federal record for the 2004 H1. 0 complaints · 1 TSBs.
2003 Hummer H1 · $29.99 select →
Engines: 6.5L V8 — OHV, turbocharged. Trims: Base Sport Utility 2-Door · Base Sport Utility 4-Door.
No recalls on federal record for the 2003 H1. 6 complaints · 62 TSBs.
2002 Hummer H1 · $29.99 select →
Engines: 6.5L V8 — OHV, turbocharged. Trims: Base Sport Utility 2-Door · Base Sport Utility 4-Door.
No recalls on federal record for the 2002 H1. 1 complaints · 0 TSBs.
05 / OwnershipOwn it — don't rent it
| Option | What you pay | After a year |
|---|---|---|
| eManualStore H1 manual | $29.99 once | Still yours |
| Per-vehicle online subscription | from $29 / year, renewing | Pay again or lose access |
| Library membership services | $33 / month, capped | $396 spent, nothing kept |
| Professional shop databases | $499–$2,388 / year | Renew or lose access |
Competitor figures as published on their sites, August 2026.
FAQQuestions about the H1 manual
Which H1 years does this manual cover?
Every year from 2002 to 2006 — 4 separate manuals, one per model year. Pick your year in the selector; the manual you receive is matched to that exact year, engine and trim.
Is this the OEM Hummer H1 manual or an aftermarket guide?
The OEM version. It carries the procedures, specifications, torque values and wiring diagrams Hummer published for the H1, organized by system — not a condensed aftermarket summary.
Does it include H1 wiring diagrams?
Yes. Full wiring diagrams are part of every H1 manual, alongside repair procedures, specifications and diagnostic information.
Does the manual cover H1 recalls?
1 recalls are on federal record across the 2002–2006 H1, listed by year below. The manual carries the manufacturer's diagnostic and repair procedures behind the systems involved; the recall repairs themselves are performed free by Hummer dealers.
Why do some H1 years cost more?
Every H1 year is $29.99.
Is this a subscription?
No. One payment, and the manual is yours to keep — unlike per-vehicle subscriptions that renew every year.
How do I get the manual after purchase?
It is a digital manual — nothing ships. Access details arrive by email right after checkout, and you can use it on any device.
RelatedSame-era Hummer manuals
- Hummer H2 2003–2009
- Hummer H3 2006–2010
- Hummer H3T 2009–2010