Hummer Maintenance

Servicing Hummer vehicles is our specialty!

We're here to help! Take advantage of our maintenance charts below to navigate your Hummer service needs. Contact our Hummer professionals with any questions and to schedule an appointment. 

Monthly
MAINTENANCE INSPECTION GROUP A
  • Check fluid levels and conditions for power steering pump cooling system (reservoir and surge tank), brakes, transmission, transfer case, geared hubs, and axles.
  • Check CDR valve for oil saturation
  • Inspect condition of control arms, springs, and shock absorbers
  • Check tire wear and condition
  • Lubricate all grease fittings and body lubrication points
  • Inspect geared hubs for leaking seals or damage
  • Inspect condition of geared hub and axle vent lines
  • Inspect Transmission transfer case shift linkage for wear, binding, distortion
  • Check Fuel Filter and drain clean if necessary
  • Check CTIS operation. Verify that system inflates/deflates tires
  • Check winch operation and cable condition(If equipped). Free-Spool out and pay-in at least 30 feet of cable
  • Check ball joints for wear
  • Test drive vehicle and complete a functional check of all systems
  • Check air cleaner
MAINTENANCE INSPECTION GROUP b
  • Inspect fuel injection pump, lines, and fittings for leaks or damage
  • Check battery voltage and condition
  • Inspect serpentine belt condition
  • Inspect exhaust system and shields
  • Inspect and rotate tires
  • Inspect half shaft boots and ball join seals
  • Inspect condition of steering column, U-Joints, tie rods, steering arm, center link, and idler arm
  • Check fuel tank vent line filter
  • Inspect condition of frame rails and cross members
  • Check A C system operation
  • Check wheel alignment
Maintenance Inspection Group C
  • Inspect surge tank, radiator and shroud, A C condenser, power steering, and transmission coolers, and all hoses and fittings for security of mounting, leaks, obstructions or damage
  •  Inspect fuel tank, lines, and cap
  •  Inspect all wiring harnesses for frays, splits, missing insulation, poor connections
  • Inspect power steering pump, power steering gear, hoses, lines, and fittings for leaks or damage
GET A QUOTE FOR YOUR PROJECT

Hummer Scheduled Maintenance Chart

Monthly
  • 3,000 Miles(4,800 km)
    100 Hrs Normal Use or 50 Hrs Severe Operation
    -Change Engine Oil and Replace Filter
    -Check Items in Maintenance Group A.
  • 6,000 Miles(9,700 km)
    200 Hrs Normal Use or 100 Hrs Severe Operation
    -Change engine oil and replace filter
    -Clean or replace air filter
    -Replace fuel filter element
    -Check Items in Maintenance Groups A and B
  • 9,000 Miles(14,500 km)
    300 Hrs Normal Use or 150 Hrs Severe Operation
    -Change engine oil and replace filter
    -Check Items in Maintenance Groups A and B
  • 12,000 Miles (19,300km)
    400 Hrs Normal Use or 250 Hrs Severe Operation
    -Change engine oil and replace filter
    -Clean or replace air filter
    -Replace fuel filter element
    -Change geared hub oil
    -Change axle oil
    -Change engine coolant
    -Change transmission and transfer case fluid
    -Change transmission filter
    -Check Items in Maintenance Groups A, B, and C
  • 15,000 Miles(24,300 km)
    400 Hrs Normal Use or 200 Hrs Severe Operation
    -Change engine oil and replace filter
    -Check Items in Maintenance Groups A and B
  • Inspect geared hubs for leaking seals or damage
  • Inspect condition of geared hub and axle vent lines
  • Inspect Transmission transfer case shift linkage for wear, binding, distortion
  • Check Fuel Filter and drain clean if necessary
  • Check CTIS operation. Verify that system inflates/deflates tires
  • Check winch operation and cable condition(If equipped). Free-Spool out and pay-in at least 30 feet of cable
  • Check ball joints for wear
  • Test drive vehicle and complete a functional check of all systems
  • Check air cleaner
  • 18,000 Miles(29,000 km)
    600 Hrs Normal Use or 300 Hrs Severe Operation
    -Change engine oil and replace filter
    -Clean or replace air filter
    -Replace fuel filter element
    -Check Items in Maintenance Groups A and B
  • 21,000 Miles(33,800 km)
    700 Hrs Normal Use or 350 Hrs Severe Operation
    -Change engine oil and replace filter
    -Check Items in Maintenance Groups A and B
  • 24,000 Miles (38,600km)
    800 Hrs Normal Use or 400 Hrs Severe Operation
    -Change engine oil and replace filter
    -Clean or replace air filter
    -Replace fuel filter element
    -Change geared hub oil
    -Change axle oil
    -Change engine coolant
    -Change transmission and transfer case fluid
    -Change transmission filter
    -Inspect brake fluid for moisture contamination
    -Check Items in Maintenance Groups A, B, and C
  • 27,000 Miles (43, 400 km)
    900 Hrs Normal Use or 450 severe Operation
    -Change engine oil and replace filter
    -Check Items in Maintenance Groups A
  • 30,000 Miles (48, 300 km)
    1,000 Hrs Normal Use or 500 severe Operation
    -Change engine oil and replace filter
    -Clean or replace air filter
    -Replace fuel filter element
    -Check items in Maintenance Groups A and B*Maintenance After Severe Operation
    Severe operation includes extensive off-road
  • Inspect half shaft boots and ball join seals
  • Inspect condition of steering column, U-Joints, tie rods, steering arm, center link, and idler arm
  • Check fuel tank vent line filter
  • Inspect condition of frame rails and cross members
  • Check A C system operation
  • Check wheel alignment
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