2008 Hummer H3 Hummer H3 2008

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2008 Hummer H3 repairs by problem area

Engine (41%)

Transmission and Drivetrain (16%)

Brakes and Traction Control (9%)

Suspension and Steering (11%)

Electrical and Air Conditioning (18%)

Paint, Rust, Leaks, Rattles, and Trim (5%)

Other (0%)

Chart based on 44 repairs.
See TSBs and recalls for the 2008 Hummer H3.

2008 Hummer H3 repair cost distribution

$2500+ (9%)

$1000 - $2499 (12%)

$500 - $999 (12%)

$100 - $499 (24%)

< $100 (42%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 33 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 Hummer H3

Engine not specified

Hummer H3 in Ontario, Canada
Dec 2012 - Jan 2013
Jan 2013

C $460
Check engine light stays on. 

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2008 Hummer H3 4dr SUV

295-horsepower 5.3L V8 4-speed automatic AWD w/low range

Hummer H3 in Pennsylvania, United States
Sep 2013 - Aug 2016
Feb 2014

142100 mi

US $7500
#5 bearing spun. Full engine replacement. 
Oct 2014

157500 mi

US $1000
Drivers front axle replaced. Axle wear could not keep seal. 
Hummer H3 in California, United States
Mar 2013 - Jul 2018
Apr 2016

110000 mi
Both of my Hummer H3's had the burning smell and melted the connector that went to the resistor in the HVAC. It is now a recall for all Hummer H3. 
Hummer H3 in Maryland, United States
Mar 2011 - Jun 2018
Jul 2011

47000 mi
Total engine failure, 5.3L V8 
Apr 2013

93700 mi
Differential gasket leaking Oil Pan Gasket needed replacing, oil leak Replaced Shocks Replaced cat back exhaust 
Jan 2014

90800 mi

US $15
small coolant leak 
May 2014

120000 mi

US $25
Simple preventative maintenance- Oil Change, air filter cleaning (k&N) and MAF and throttle body cleaning (rough idle) 
Jun 2015

130000 mi

US $285
Warped rotor, front passenger side caliper frozen 
Oct 2015

134700 mi

US $368
Starter replacement 
Aug 2016

149000 mi

US $250
Heat shield on catalytic converter came loose (rusted weld), put exhaust strap on it. 
Sep 2016

149000 mi

US $800
Had to replace front wheel hub 
Oct 2016

150000 mi

US $1250
Replaced cracked radiator 
May 2017

162000 mi

US $700
The Pass-Lock system was malfunctioning and I could not remove the key despite being in park.  In addition, there was a passenger side leak (floor was getting saturated) in rain and had to replace weather stripping 
Aug 2017

166000 mi

US $750
Replaced transmission cooling lines that were leaking 
Sep 2017

166000 mi

US $79
the parking brake would not fully engage (car would roll slowly until the transmission stopped it), when attempting to tighten the cable the adjustment parts were found to be rusted and snapped when attempt was made 
Dec 2017

171000 mi

US $600
driver's side axle seal replacement due to corrosion  and ds wheel hub due to noise and excess movement. 
Feb 2018

176000 mi

US $1600
The vehicle went in for broken exhaust manifold bolts and an exhaust leak. I decided to replace both exhaust manifolds due to the age of the car but technically they were not required.  Upon working on the car the mechanic noticed an extremely rust steering shaft which I decided to replace 
Apr 2018

176000 mi

US $8500
I had a lifter freeze and destroy the cam lobe. The noise was hidden by the exhaust leak and became very apparent when exhaust was fixed. I could have replaced the lifter and cam but chose to replace the motor due to high mileage and metal particles in the oil. The cost of the motor replacement would have been $7k but I chose to replace all hoses, alternator, water pump, thermostat, fan clutch , plugs, coils, etc. If I had just done the lifter and cam the cost woudl have stayed around $1k 
Hummer H3 in Alabama, United States
Sep 2013 - Jan 2015
Oct 2013

63300 mi
AC control module failed to blend hot and cold. Control module replaced. Buttons malfunctioning on radio. Radio replaced. 
Jan 2014

65300 mi
Right front CV boot damaged. Entire axle assembly replaced 
Mar 2014

67000 mi
Transfer case sensor error. Broken ground wire found in the harness. Harness replaced. 
Jan 2015

65000 mi

US $1750
Torn inner and outer cv boots driver side Top of radiator leaking because of no padding on upper retaining bracket. Original OEM design and install. DTC P0121. tech found the throttle body bad. 
Hummer H3 in Maryland, United States
Sep 2013 - Mar 2015
Oct 2014

165000 mi

US $350
Master cylinder appeared to have stuck or open valve which resulted in a pedal to the floor condition. Knocking on it would free it temporarily. 

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2008 Hummer H3 4dr SUV

242-horsepower 3.7L I5 5-speed manual AWD w/low range

Hummer H3 in Delaware, United States
Dec 2015 - Sep 2017
Aug 2016

105000 mi

US $1
Radiator needed to be replaced 

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2008 Hummer H3 4dr SUV

242-horsepower 3.7L I5 4-speed automatic AWD w/low range

Hummer H3 in Maryland, United States
Jul 2013 - Aug 2013
Aug 2013

54000 mi

US $748
Radiator cracked at top causing leak. Vehicle also has a rough idle. Cause of Idle unknown 
Hummer H3 in Ohio, United States
Sep 2011 - Jun 2014
May 2014

77000 mi

US $100
Steering column intermediate shaft failure. Difficult steering off center and no on center feel. 
Jun 2014

77000 mi
Occasional engine loss of power under high steering load when just starting up after about a week of sitting. 
Hummer H3 in Michigan, United States
Dec 2010 - Jun 2018
Dec 2011

28000 mi
Rear Camera in mirror does not operate compass & temp stop working and cruse control not working. It comes & goes. dealer said it was because of a aftermarket starter/Alarm this was the easy way out.I then took Truck to Alarm company 
Nov 2014

45000 mi

US $170
Engine service light replace Gas Cap.1st. according to repair manual. Then had to replace Gas tank Pressure valve at gas tank. New Battery 
Dec 2016

54000 mi

US $30
Muffler Heat shield clamp broke & had to be replaced. 
Jun 2018

59000 mi

US $5900
tires & rims Chrome coming off old rims. Lub Eng,Front & rear Diff,Transfer case & Auto Trans. brake lines fuel inj flush 
Hummer H3 in Maine, United States
May 2011 - Oct 2011
Jul 2011

30000 mi
Passenger tail light out from fuse that kept blowing, faulty wire found and fixed. 500 mile drive in 100+ temps, AC began blowing white smoke through center vents, could smell something burning. Turned AC off and turned it on the next day, no problems. Took it to dealer, problem could not be replicated. 

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2008 Hummer H3 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2008 Hummer H3 problems occur, check out our car reliability stats.

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