2002 Hummer H2 problems

General information about Hummer-H2
Overview of popular issues
Analysis of common problems
Сomplaints list

The Hummer H2 is an full-size off-road sport utility vehicle (SUV) that was marketed by Hummer and built in the AM General facility under contract from General Motors from 2002 until 2009. It is based on a modified GMT820 GM three-quarter-ton pickup truck in the front and a half-ton 1500 frame in the rear. A four-door pickup truck version with a midgate that opens the vehicle's interior to the external cargo bed was introduced for the 2005 model year as the H2 SUT (sport utility truck).

Background

In 2001 and 2002, GM allowed journalists to examine early versions of the Hummer H2, which were still under development at the time.

The H2 was built by AM General under contract with General Motors at AM General Commercial Assembly Plant in Mishawaka, Indiana.

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Common 2002 Hummer H2 problems

Based on the complaints from owners of the Hummer H2 2002, several common problems have been reported:

Mode Door Actuator Failure:
- This issue is widely reported for 2003-2009 Hummer H2s and can lead to improper HVAC temperature and air delivery.
- Owners often spend around $50 to $70 on diagnosis alone to address this problem.
Gas Cap Issues:
- A common complaint for the 2003-2009 model years, where a loose or worn gas cap triggers the check engine light.
- It's essential to diagnose this issue properly to avoid other potential causes for the check engine light.
Oil Pressure Problems:
- Among the top complaints for the 2006 model year, with repairs for this issue costing up to $7,000.
- Many owners reported loud knocking sounds and coolant loss, sometimes requiring engine replacement to resolve the issue.
Engine Stalling and Low Idle Speed:
- Some 2003-2006 Hummer H2 owners have experienced engine stalling and low idle speed issues.
- Servicing the throttle body usually corrects this problem, with costs ranging from $230 to $290.

These common problems with the Hummer H2 2002 highlight the importance of regular maintenance and prompt attention to any issues that arise to ensure the vehicle's optimal performance and longevity.

Do Hummer H2 have problems?

Though there's no denying that the Hummer H2 is a reliable off-road SUV, it can develop issues as it racks up mileage. Problems like gas cap issues and stalling engines aren't unheard of, meaning you'll need to get parts repaired or replaced every now and then.

What is the problem with the H2 transmission?

One common problem with the Hummer H2 transmission is an unusually harsh or delayed shift from 1st to 2nd gear. There might also be a shake or shudder from the transmission at lower speeds.

Is it expensive to fix a Hummer H2?

The annual maintenance cost of a Hummer H2 is $745. Repair and maintenance costs vary depending on age, mileage, location and shop.

How long will a Hummer engine last?

How Long Do They Really Last? Depending on how you use them, hummers can last for a long period of time. That is because they are designed to withstand rough terrains and really bad weather. Many people get a lifetime of 300,000 to 500,000 miles from a Hummer.

2002 Hummer H2 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Hummer H2 problems, we found that the most common problems with these 2023 model year vehicles are:

Visibility problems
Power train problems

The graph below shows statistics for all 2002 Hummer H2 vehicle components and the number of complaints received.

2002 Hummer H2 complaints

The NHTSA has received 2 complaints about various vehicle components related to the 2002 Hummer H2.

2012-06-12

VISIBILITY PROBLEM

Date Of Incident: 2012-06-01
VIN: 5GRGN23U83H
Components: VISIBILITY
Summary: 2003 HUMMER H2. CONSUMER WRITES IN REGARDS TO REIMBURSEMENT FOR WINDSHIELD WIPER RECALL *TGW THE WIPER BLADE MOTOR WAS REPLACED. *JB

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2011-12-14

POWER TRAIN PROBLEM

Date Of Incident: 2011-12-11
Components: POWER TRAIN
Summary: TL* THE CONTACT OWNS A 2003 H2 HUMMER. WHILE DRIVING 1 MPH, THE FRONT PASSENGER SIDE WHEEL FRACTURED AND DETACHED FROM THE VEHICLE. THE DEALER INFORMED THE CONTACT THAT THE DRIVESHAFT AND SPINDLE WERE FRACTURED, AS WELL AS THE CASING BEHIND THE WHEEL. THE CONTACT WAS AWAITING REPAIRS TO THE VEHICLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CURRENT AND THE FAILURE MILEAGES WERE 43,000. THE VIN WAS UNAVAILABLE.

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Additional sources

More sources of information about 2002 Hummer H2 problems:

Hummer H2 Problems and Complaints - 24 Issues

https://repairpal.com/problems/hummer/h2

Top Hummer H2 Problems · Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail · Check Engine Light Due to Gas Cap Issue · CD Player May Fail ...

H2 Hummer Electrical Issues: Q&A with Expert Mechanics ...

https://www.justanswer.com/car/f0sfw-2004-h2-hummer-probably-electrical.html

Sep 3, 2020 ... I have a 2004 H2 Hummer that probably has an electrical issue...The dash becomes hot to the touch, specifically, the - Answered by a ...

Hummer H2 Reliability and Common Problems - In The Garage with ...

https://www.carparts.com/blog/hummer-h2-reliability-and-common-problems/

Feb 2, 2024 ... The Hummer H2 has been known to develop problems like mode door actuator failure, gas cap issues, low oil pressure, and engine stalling, among ...