2004 Hummer H2: recalls and complaints
NHTSA lists 3 recall campaigns for the 2004 Hummer H2. The newest campaign is 05V163000. NHTSA received the report on 22 Apr 2005. The NHTSA record gives the component Seat Belts / Rear/Other. NHTSA has 59 complaints on file for this model year. 2 NHTSA investigations name this model year.
The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.
This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.
Remedy of the newest campaign, 05V163000, in the NHTSA record
Dealers will cut open the guide loop, remove a portion of the loop, and then the remaining two sides should be folded over and secured with a retainer free of charge. The recall began on july 21, 2005. Owners may contact cadillac at 1-866-982-2339, chevrolet at 1-800-630-2438, GMC at 1-866-996-9463, or hummer at 1-800-732-5493.
Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.
NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .
Since the last update
No tracked figure of this page changed in a data update. What the log tracks
Recall campaigns
3 campaigns, newest first. 1,506,110 units in total.
05V163000Received . 1,359,824 units.
Seat Belts / Rear/Other
- Defect, in the NHTSA record
On certain crew cab pickup trucks and sport utility vehicles, the 2nd row center occupant seat belt routing may make it difficult to position the lap portion of the safety belt low around the hips of occupants, especially smaller occupants, seated in this position. Appropriate use of a child seat or booster seat, as recommended for small children, does improve the fit condition for this user group. In addition to instructions on proper infant and young child restraint (with child seats or boosters), special verbiage for restraining older child is included in the owner's manual. Also, the suggested seat belt fit/routing for adults, irrespective of seating position, is described in the owner's manual text.
- Consequence, in the NHTSA record
A lap portion of the seat belt routing that is not low and snug on the hips can allow the lap belt to ride up on an occupant's abdomen instead of fitting low around their hipbones, and therefore, can expose them to more risk of abdominal and internal organ injury.
- Remedy, in the NHTSA record
Dealers will cut open the guide loop, remove a portion of the loop, and then the remaining two sides should be folded over and secured with a retainer free of charge. The recall began on july 21, 2005. Owners may contact cadillac at 1-866-982-2339, chevrolet at 1-800-630-2438, GMC at 1-866-996-9463, or hummer at 1-800-732-5493.
Report filed by GENERAL MOTORS CORP.. Manufacturer campaign number 05037. Owner notification date in the NHTSA record: .
05V043000Received . 77,411 units.
Service Brakes, Hydraulic
- Defect, in the NHTSA record
Certain trucks, sport utility vehicles, and vans equipped with bosch hydro-boost brake assemblies, the hydraulic brake booster pressure accumulator may crack and separate from the hydro-boost assembly during normal operating conditions.
- Consequence, in the NHTSA record
If a separation occurred and the hood of the vehicle were open, fragments from the accumulator could cause injury to people in the immediate area. The presence of this crack or fractured surface could allow the hydraulic fluid to leak from the accumulator circuit of the booster assembly. The loss of fluid would cause increased steering and braking effort and a crash may occur without prior warning.
- Remedy, in the NHTSA record
Dealers will test the hydro-boost assembly for functional operation of the two-function valve. If the hydro-boost assembly fails the test, dealers will replace the assembly free of charge. The recall began on march 23, 2005. Owners may contact chevrolet at 1-800-630-2438, GMC trucks at 1-866-996-9463 and hummer at 1-800-732-5493.
Report filed by GENERAL MOTORS CORP.. Manufacturer campaign number 05006. Owner notification date in the NHTSA record: .
04V045000Received . 68,875 units.
Service Brakes, Hydraulic
- Defect, in the NHTSA record
Certain sport utility vehicles, pickup trucks, and passenger vans fail to comply with the requirements of federal motor vehicle safety standard no. 135, ?passenger car brake systems.? Some of these vehicles were produced with an out-of-specification brake hydro-boost housing relief valve bore.
- Consequence, in the NHTSA record
Consequently, the valve o-ring seal may fracture. Steering efforts may be slightly increased while braking or parking. Under certain driving conditions, a fractured seal may require a slight increase in the applied brake pedal effort to achieve the same vehicle deceleration rate as prior to the seat fracture.
- Remedy, in the NHTSA record
Dealers are to replace the hydro-boost relief valve. The recall began on june 18, 2004. Owners should contact cadillac at 1-866-982-2339; chevrolet at 1-800-630-2438; GMC at 1-866-996-9463; or hummer at 1-866-486-6376.
Report filed by GENERAL MOTORS CORP.. Manufacturer campaign number 04004. Owner notification date in the NHTSA record: .
The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.
Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.
Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.
Complaints by component
59 complaints, 74 component mentions.
A complaint can name more than one component. Each component that a complaint names is one component mention. The figure per 1,000 component mentions shows how many of each 1,000 mentions name the component.
- 2004 Hummer H2
- All 2004 vehicles
| Component | 2004 H2 | All 2004 vehicles | H2, all years | Mentions |
|---|---|---|---|---|
| Electrical System | 189.2 | 129.3 | 172.5 | 14 |
| Visibility | 148.6 | 39.6 | 195.8 | 11 |
| Service Brakes | 108.1 | 28.6 | 65.3 | 8 |
| Steering | 81.1 | 71.7 | 76.9 | 6 |
| Service Brakes, Hydraulic | 81.1 | 44.1 | 46.6 | 6 |
| Suspension | 40.5 | 51.1 | 49 | 3 |
| Structure | 40.5 | 73.3 | 49 | 3 |
| Air Bags | 40.5 | 78.9 | 51.3 | 3 |
| Visibility/Wiper | 40.5 | 4.1 | 37.3 | 3 |
| Power Train | 27 | 113.4 | 55.9 | 2 |
The table shows the 10 components with the most mentions, of 22.
- Complaints that report a crash
- 6
- Complaints that report a fire
- 1
- Injuries in the complaints
- 5
- Deaths in the complaints
- 0
- Date of the newest complaint
- 10 Feb 2026
These figures are the entries of the persons who sent the complaints.
Complaint: A report about a possible safety problem that a person sends to NHTSA. This site shows the number of complaints and not their text.
Investigations
| Number | Type | Subject | Component | Opened | Closed | Campaign |
|---|---|---|---|---|---|---|
| EA05017 | Engineering analysis | HUMMER H2 STEERING KNUCKLE FAILURES | Suspension / Front / Control Arm / Lower Ball Joint | 28 Oct 2005 | 30 Apr 2007 | |
| PE04080 | Preliminary evaluation | STEERING KNUCKLE FRACTURE | Steering / Linkages / Tie Rod Assembly | 2 Dec 2004 | 28 Oct 2005 |
Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.
Other model years
The number under each year is the number of recall campaigns.
A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.
Follow by RSS:Vehicle recalls
Official channels
- NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
- NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
- NHTSA page of the 2004 Hummer H2The recalls, the complaints and the investigations that NHTSA shows for this model year.
Cite this page
Recall Register. 2004 Hummer H2: recalls and complaints. https://recallregister.com/vehicle/hummer/h2/2004/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .
Sources
- Source
- NHTSA Office of Defects Investigation
- Licence
- US government work, public domain
- Recall file through
- 30 Sep 2026
- Complaint file through
- 30 Sep 2026
- First complaint in the file
- 1 Jan 1995
- Manufacturer in the recall file
- GENERAL MOTORS CORP.
The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.
Questions
- How many units are in the recall campaigns for the 2004 Hummer H2?
- 1,506,110 units in 3 campaigns. A campaign can name other models and model years, and its units include them.
- How many recall campaigns does the Hummer H2 have for all model years?
- NHTSA lists 11 recall campaigns for the Hummer H2, model years 2002 to 2009. 3 of them name the 2004 model year.
- Which component do the complaints about the 2004 Hummer H2 name most often?
- Electrical System: 14 of 74 component mentions, or 189.2 per 1,000. For all 2004 vehicles the figure is 129.3 per 1,000.
- Is an NHTSA investigation of the 2004 Hummer H2 open?
- No. Each of the 2 investigations that name this model year has a closing date in the NHTSA file.