Complete OEM service intervals, DIY guides, parts list, and how-to videos for the 2014 GMC Hummer EV.
Track Your GMC Hummer EV Free →| Maintenance Task | Interval |
|---|---|
| Engine Oil & Filter Change | Every 7,500 miles |
Severe duty: 3,750 mi / 6 mo. Use OEM-spec oil weight. Replace filter with every oil change. | |
| Engine Air Filter Replacement | Every 30,000 miles |
Inspect every 15,000 mi; replace sooner if driving in dusty conditions. | |
| Cabin Air Filter Replacement | Every 22,000 miles |
Replace annually in dusty areas. | |
| Tire Rotation | Every 7,500 miles |
EV-specific tire wear due to torque/weight. Check alignment every 15,000 mi. | |
| Tire Pressure Check | Every 5,000 miles |
Check when cold. Follow door-jamb placard, not tire sidewall max. | |
| Brake Pad Inspection | Every 20,000 miles |
Inspect thickness. Replace at ≤3 mm friction material. Severe duty: inspect every 10,000 mi. | |
| Brake Fluid Exchange | Every 45,000 miles |
GM DOT 3. Regen braking extends pad life significantly. | |
| Coolant Exchange | Every 150,000 miles |
Battery thermal management coolant. GM DEX-COOL. Check level annually. | |
| Transmission Fluid Change | Every 60,000 miles |
Severe duty: 30,000 mi. Use OEM-spec fluid only — wrong fluid can destroy transmission. | |
| Windshield Wiper Blade Replacement | Every 12,000 miles |
Replace when streaking or chattering. | |
| Battery Inspection & Terminal Cleaning | Every 30,000 miles |
Clean terminals, check charge voltage (12.4V+ resting). Load-test after 3 years. | |
| Serpentine/Drive Belt Inspection | Every 30,000 miles |
Check for cracks, fraying, glazing. Replace per OEM schedule or at first signs of wear. | |
| Power Steering Fluid Check | Every 30,000 miles |
Top off if low. Investigate leaks. EPAS (electric) vehicles have no fluid. | |
| Fuel Filter Replacement | Every 50,000 miles |
Some modern vehicles have lifetime fuel filters in the tank. Verify before replacing. | |
| Spark Plug Replacement | Every 60,000 miles |
Iridium plugs may last 100,000+ mi. Use OEM-specified plug type and gap. | |
| Suspension & Steering Inspection | Every 30,000 miles |
Check ball joints, tie rods, bushings, shocks/struts for play and leaks. | |
| Exhaust System Inspection | Every 45,000 miles |
Check for leaks, rust, loose hangers. Listen for changes in exhaust note. | |
| A/C System Check | Every 30,000 miles |
Verify A/C performance, check refrigerant level, inspect condenser for debris. | |
| Lubricate Door Hinges, Latches & Hood Striker | Every 15,000 miles |
White lithium grease or OEM-equivalent. Prevents squeaks and wear. | |
| Multi-Point Vehicle Inspection | Every 15,000 miles |
Check high-voltage cables, cooling lines, underbody shield condition, 12V auxiliary battery. | |
Factory-recommended maintenance intervals directly from GMC's service schedule.
Exact parts and tools needed for each service, with direct Amazon purchase links.
Curated YouTube tutorials for every maintenance task, matched to your vehicle.
Automatic NHTSA safety recall notifications for your GMC Hummer EV.
Log services, track mileage, and get reminders — all from your phone.
Selling? Generate a shareable service history link for potential buyers.