Service - Service requirements are just like any other 4x4 truck, with a few extra items. After most outings you will find me on my roll-around back board checking out the bottom for any problems or damages. And on a nice warm day while checking things out, you may find that I have fallen asleep under the Hummer too.  I think I can say servicing the Hummer on the weekend is something I like doing when I am not some where off the roads.  And when it come to repairing something like the Hubs, shafts, or other items on the Hummer that I have not done before, normally make me feel great.  It gives me the opportunity to learn more about the workings of the Hummer and to learn how easy it is to do so.  If you are not the type who like to service the Hummers, all that is really needed is a good trustworthy mechanic.  Our fire dept. uses a local garage, A & L Automotive to service their Hummer, and they do a great job every time.  If you are in the North West area of Houston and need service, give A & L Automotive a call, they are located on Grant Road near Jones Road,  281-955-7018.  If you are in need of engine work, diesel that is, I went to North West Diesel & Automotive, who did a great job on the engine after AM General came and worked on it when I had the new engine installed.  They are located at 15511 Kuykendahl  near FM-1960, 281-893-2886
 

•      Engine - at about every 3,000 miles I take it to Jiffy Lube for the engine oil change.
•      Joints - I grease all the joints myself after each outing and/or when having the oil changed.
• Mfg. recommends every 3,000 miles for normal driving, but for mud and sand use - every 1,000 miles
• about 29 points to grease
• Common missed one seem to be the lower half of the steering shaft.
•      Geared Hubs & Axle Assembly -
• Check them about every 3,000 miles,
• I also like to check them after each outing.
• Geared Hubs requires removing the tires to check fluid levels if you are going to do all four.
•      Transmission - Requires fluid changing at 12,000 miles.
• Uses Dexron III
• Most Hummers also have a drain plug on the transmission too like the oil pan.
•      Transfer Case - a "New Process Gear 242" (now known as New Venture Gear) chain driven transfer case
• Requires fluid change a 12,000 miles
• Uses Dexron III
•      Brake fluid levels - uses DOT 5 Silicone brake fluid - check levels monthly
•      Power Steering - check fluid levels monthly, this also power the brakes and my winch.
• Uses Dexron III
•      Fuel filter - requires replacing every 6,000 miles.
•      Air Filter - Inspect clean every 3,000.