2023 GMC Hummer EV Maintenance Schedule
How the 2023 GMC Hummer EV is maintained is a big change in the way cars are cared for, and it shows how innovative the vehicle is in every way. With its all-electric powertrain, the Hummer EV completely changes the rules for regular upkeep by getting rid of the need for oil changes and exhaust system checks. Instead, the attention turns to the health of the batteries and more complex electronic systems. Regular battery checks, software updates, and keeping an eye on important electric car parts are emphasized. The Hummer EV’s smart fuses, digital diagnostics, and remote troubleshooting tools change the way maintenance is done. They allow quick, efficient, and proactive servicing to make sure the vehicle runs at its best and lasts as long as possible. As a sign of environmentally friendly driving, the 2023 Hummer EV sets a new standard for how to maintain cars. This is in line with the idea of eco-friendly driving in the future of electric cars.
Service and Maintenance
Severe Conditions Requiring More Frequent Maintenance
- Mainly driven in heavy city traffic in hot weather.
- Mainly driven in hilly or mountainous terrain.
- Frequently towing a trailer.
- Used for high-speed or competitive driving.
- Used for taxi, police, or delivery service.
Additional Required Services — Severe Service
Every 72 000 km (45,000 mi)
Change the electric drive unit fluid. See Recommended Fluids and Lubricants
Owner Checks and Services Every Five Years
Replace brake fluid every five years. See Brake Fluid
Every Seven Years
Replace Air Conditioning Desiccant every seven years. The air conditioning system requires maintenance every seven years. This service requires the replacement of the desiccant to help the longevity and
Service and Maintenance
efficient operation of the air conditioning system. This service can be complex. See your dealer.
Multi-Point Vehicle Inspection (MPVI)
- A Multi-Point Vehicle Inspection (MPVI) completed by a GM dealer technician is a maintenance assessment of your vehicle.
- The benefit of the MPVI is to identify and inform the customer of service items that require immediate attention and those that may require attention in the future.
- The technician will perform the following checks on your vehicle. For a complete list of checks, inspections, and services, see your dealer.
- Some items may not apply to your vehicle and/or region
Diagnostics
- OnStar active, if equipped
- Service history/recall check
Exterior Lights
Visual inspection
Windshield and Wipers
Visual inspection
Battery
- Battery visual inspection
- Battery test results
- Battery cables and connections
Systems, Fluids, and Visible Leak Inspection
- Electric Drive Unit
- Drive axle
- Transfer case
- Power electronics cooling system. Windshield washer fluid
Tire Inspection
- Tire pressure, tread depth, and wear. Rotation, if applicable
- Alignment check, optional
- Reset tire pressure monitor
- Check tire sealant expiration date,
- if equipped
- Check spare tire, if equipped
Brakes
- Check brake system
Visible and Functional Inspections
- Seat belt components
- Accelerator pedal
- Passenger compartment air filter,
- if equipped
- Hoses
- Shocks and struts
- Steering components
- Axle boots or driveshaft and u-joints Compartment lift struts, if equipped
- Floor mats secured, no interference with pedals
- Horn
- Starter switch
Lubricate
- Chassis components
Owner Checks and Services
- At least twice a year, have an underbody flushing service performed. See “Underbody Maintenance” in Exterior Care.
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.
| Usage |
Fluid/Lubricant |
| Electric Drive Unit | DEXRON ULV Automatic Transmission Fluid. |
| Hydraulic Brake System | GM approved DOT 4 Hydraulic Brake Fluid. |
| Key Lock Cylinders, Hood and Tailgate/Swing Gate Hinges | Multi-Purpose Lubricant, Superlube. See your dealer. |
| Vehicle Coolant Circuits | Use only ACDelco Premix (50/50 mixture of de-ionized water and DEX-COOL Coolant). See your dealer. |
| Windshield Washer | Automotive windshield washer fluid that meets regional freeze protection requirements. |
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
| Part | GM Part Number |
ACDelco Part Number |
| Passenger Compartment Air Filter | 13508023 | CF185 |
| Wiper Blades | ||
| Driver Side – 360 mm (14 in) | 86816403 | — |
| Center – 360 mm (14 in) | 86816403 | — |
| Passenger Side – 360 mm (14 in) | 86816403 | — |
Maintenance Records
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed. Retain all maintenance receipts
FAQ
he owner’s handbook contains the suggested maintenance schedule, which typically calls for regular inspections and servicing at predetermined mileage intervals.
Due to the absence of an internal combustion engine, the Hummer EV is an electric vehicle that doesn’t require oil changes.
Compared to conventional automobiles, air filters on electric vehicles like the Hummer EV typically last longer. For instructions, consult your owner’s manual, but this is normally a less frequent maintenance task.
You should rotate your tires as directed in your owner’s manual and regularly check their condition and pressure. This is normally done every 5,000 miles.
To achieve even tire wear, tire rotation is advised every 7,500–10,000 miles.
Regenerative braking is frequently used in electric vehicles to lessen brake wear. Brake pad replacement might be less regular; consult the owner’s handbook.
Software updates and regular system inspections are crucial. Maintenance for batteries and motors is typically minimal.
Routine battery system inspections might be a part of your yearly maintenance, although extensive treatment is less typical.
Battery and power electronics cooling systems may be present in electric vehicles. For precise time intervals, consult the owner’s manual.
Refer to the owner’s manual for suggestions. Usually, it happens less frequently than in conventional automobiles.
It is advisable that the HVAC system be regularly inspected and serviced, including the replacement of the cabin air filter.
Suspension parts should be tested once a year or more frequently if problems emerge.
The charging equipment should be routinely inspected for any signs of damage and should be serviced as necessary.
Regular software upgrades and examinations can be included in yearly maintenance.
As instructed in the owner’s manual, regular cleaning, waxing, and interior care will help keep your Hummer EV in peak condition.
Useful Link
View Full PDF: GMC Hummer EV 2023 User Guide | Auto User Guide
2023 GMC Hummer EV Fuses and Fuse Box Operations