2008 Hummer H3 Overview


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Average User Score

4.65 stars

Based on 22 reviews

Go Anywhere Do Anything Type Of Vehicle. by Will
 — At first glance the H3 looks like it's older brother the H2, however there are noticeable differences. The H3 does not stand as tall and it doesn't use nearly as much gas either. Entering the H3 for t... Read More
Nice by Kalvin
 — pERFORMANCE-Strong brakes,good acceleration,excellent steering specially on curves Build Quality-Good engine built ,customized transmission,latest off-terrain wheels,shock absorber high quality Appear... Read More
Stylish But Poor Gas Mileage by 99medic
 — Great truck for the weekend in the back country. I would not recommend it for a daily driver due to the poor gas mileage. There is the cold air intake and throttle body spacer that can be installed ... Read More

2008 Hummer H3 Overview

Overall User Score

4.6 out of 5 stars4.6 out of 5 stars4.6 out of 5 stars4.6 out of 5 stars4.6 out of 5 stars4.65

Based on 22 reviews

2008 Hummer H3

After complaints of an underpowered engine became deafening, the 2008 Hummer H3 added a new 5.3-liter V8 to its lineup. The new H3 Alpha gets 300 hp and 320 lb-ft of torque, and its dimensions have been slightly revised to accommodate the larger engine from the Silverado. It also purportedly is cleaner than many pickup engines. The regular 5-cylinder, 3.5-liter engine remains, now putting out 242 hp. Both engines come with either a 5-speed manual or 4-speed Hydramatic, and the Alpha has taller gears.

The 2008 H3 features 4WD with low-range gearing, 9 inches of ground clearance, and skid plates, and is designed specifically for off-roading.  Traction control and rack-and-pinion steering have been revised this year, and all models come with ABS brakes, stability control, a tire monitor, and dual front airbags. Side curtain airbags have also been added in the Alpha for 2008. Base models feature a full power setup, cruise control, and CD player, and as you move up through Luxury and H3x, you add heated leather seats, power front seats, and a 6-CD changer. The H3x adds styling notes, such as a chrome fuel door and body-colored grille.

Rear seats split-fold 60/40 and fold down to open up the small cargo area to 56 cubic feet. Tie-downs are included, but a cargo cover is extra. You can also add a trailer hitch to tow up to 4,500 pounds in the regular H3 and 6,000 pounds in the Alpha V8. The rear-mounted spare tire, which hampered visibility, has been moved under the bed. Options include a sunroof and rearview camera. The extra V8 power has increased the 2008 H3's rugged off-roading performance, and the smaller overall size of the H3 somewhat improves city maneuverability, but highway driving still lacks power, and the rear seats are still cramped.


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2008 Hummer H3, 2010 Hummer H3, exterior, manufacturer
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Looking for a Used H3 in your area?
CarGurus has 1,711 nationwide H3 listings starting at $6,588.

Hummer H3 Questions


Why Does The 4x4 Light Stay On

2008 h3 hummer alpha. three 4x4 buttons. 4x4 high, 4x4 low lock, 4x4 high lock. 4x4 high button stay illuminated.

112 views with 2 answers (last answer about a week ago)
Geary Pryor

2008 H3 Smoke Coming From Driver Side Dashboard

Last 3 days Humphrey( my H3 lol) been kicking out a light mist on my driver side dashboard close to windshield. Seem to leave a oily residue on windshield inside car. Does not happen on passenger ...

21 views with 1 answer (last answer 2 months ago)

Hummer H3 Goes Into 4low On Its Own When Making Sharp Turn Wont Go Back To ...

13 views with 1 answer (last answer 4 months ago)
Kevin Hornsby

Fog Lamp Replacement / Installation

Does the front bumper need to come off in order to remove / replace entire fog lamp assembly? I clearly do not see an easier way.

59 views with 4 answers (last answer 4 months ago)
Megan McKay

Engine Start Issue

When I start the truck, the RPM's REV way up, then come way down. The truck then rumbles/shakes and white smoke comes from the exhaust. Doesn't happen all the time, but often. What is going on?!

29 views with 1 answer (last answer 4 months ago)