Ford Explorer 2020 Hybrid – Performance Maintenance And DIY
The 2020 Ford Explorer Hybrid represents a significant shift in Ford’s SUV lineup, combining a 3.3L V6 engine with a modular electric motor to deliver both power and efficiency. This guide provides owners and DIY mechanics with the essential technical knowledge needed to maintain the high-voltage system and optimize the 5,000-pound towing capacity.
Finding the right balance between rugged capability and fuel economy is a challenge for any modern SUV owner. You want the muscle to tow a trailer on the weekends, but you also need to manage fuel costs during the daily commute.
The ford explorer 2020 hybrid was designed to bridge this gap, using a modular hybrid system that keeps the traditional RWD-based platform intact. In this guide, I will show you how to maintain this complex machine and what to watch out for as the miles add up.
We will explore the unique cooling requirements, battery health tips, and common mechanical quirks that every DIYer should know. Let’s dive into the details of your Explorer’s hybrid heart and keep it running at peak performance.
Troubleshooting the ford explorer 2020 hybrid Transmission and Battery
The powertrain in this vehicle is unique because it uses a 10-speed modular hybrid transmission (MHT). Unlike a typical eCVT found in many hybrids, this system places an electric motor between the engine and the 10R80 gearbox.
One common issue owners of the ford explorer 2020 hybrid report is a “harsh shift” or a clunking sensation when the vehicle transitions from electric to gas power. This is often a software calibration issue rather than a mechanical failure.
If you experience these symptoms, check for any Technical Service Bulletins (TSBs) related to the Powertrain Control Module (PCM). A simple dealer reflash can often smooth out these transitions and improve the driving experience significantly.
Understanding the 12V Deep Sleep Issue
Many owners have encountered a “Deep Sleep” mode that prevents the vehicle from starting after sitting for a few days. This usually stems from the 12V lead-acid battery being drained by the vehicle’s modem and security systems.
If you are a DIYer, I recommend testing the 12V battery with a digital multimeter. If the voltage drops below 12.2V while the car is off, the battery may need a slow charge or replacement with a higher-capacity AGM unit.
High-Voltage Battery Cooling
The lithium-ion battery pack is located under the floorboard on the passenger side. It is liquid-cooled, which is a major advantage for longevity compared to air-cooled systems found in older hybrids.
Keep the area under the second-row seats clear of debris. Blocking the airflow or damaging the protective casing can lead to overheating, which reduces the hybrid system’s efficiency and overall lifespan.
Routine Maintenance for the 3.3L Hybrid System
Maintaining the ford explorer 2020 hybrid requires a mix of traditional internal combustion engine (ICE) care and specialized hybrid inspections. The 3.3L V6 is a naturally aspirated engine, which simplifies some aspects of maintenance.
Always use the recommended 5W-20 synthetic blend or full synthetic oil. Because the engine cycles on and off frequently, high-quality oil is critical to protect the cylinder walls during cold starts in traffic.
I suggest changing the oil every 5,000 to 7,500 miles, regardless of what the Intelligent Oil-Life Monitor says. Frequent short trips can lead to moisture buildup in the crankcase, which shortens oil life.
The Dual Cooling System
This vehicle features two separate cooling loops. One loop manages the engine temperature, while the other is dedicated to the inverter and the high-voltage electronics.
Check both coolant reservoirs regularly. If the hybrid electronics loop runs low, the system will disable electric-only mode to prevent damage to the sensitive power electronics.
Air Filter Inspections
A clogged engine air filter will force the electric motor to work harder, draining the battery faster. Replace the air filter every 20,000 miles, or more often if you frequently drive on dusty trails or off-road paths.
Use a high-quality pleated paper filter. Avoid oiled “performance” filters, as the oil can sometimes coat the Mass Air Flow (MAF) sensor, leading to poor fuel economy and rough idling.
Regenerative Braking and Chassis Care
One of the best perks of the ford explorer 2020 hybrid is the longevity of the braking system. Regenerative braking uses the electric motor to slow the vehicle, which saves the mechanical brake pads from wear.
However, this can lead to a different problem: rust. Because the physical pads and rotors are used less frequently, they can develop surface corrosion, especially in salt-heavy winter climates.
I recommend performing a few “firm” stops in a safe area once a week. This clears the oxidation off the rotors and ensures the caliper slide pins remain mobile and lubricated.
Tire Pressure and Alignment
Hybrids are sensitive to rolling resistance. Even a 3 PSI drop in tire pressure can noticeably decrease your MPG. Check your pressures monthly and stick to the 33-35 PSI range listed on your door jamb.
If you notice the vehicle pulling to one side, get an alignment immediately. The extra weight of the hybrid battery means that poor alignment will scrub the tread off your tires much faster than a standard Explorer.
Suspension and Bushings
The 2020 model year was the first of the sixth generation. Some early builds had issues with rear subframe bolts and suspension bushings that could squeak or groan over speed bumps.
Inspect the rubber bushings for cracks or signs of dry rot. If you hear a “clunk” when shifting from Reverse to Drive, have the rear differential mounts inspected for play.
Off-Roading and Towing with Hybrid Power
The ford explorer 2020 hybrid is surprisingly capable when the pavement ends. Unlike many “soft-roaders,” this vehicle retains a mechanical connection to the wheels through its Intelligent 4WD system.
The electric motor provides instant torque, which is incredibly helpful when crawling over rocks or navigating through deep sand. You don’t have to wait for the engine to rev up to get moving.
When off-roading, use the “Deep Snow/Sand” mode. This adjusts the traction control to allow for more wheel spin, preventing the hybrid system from cutting power just when you need momentum.
Towing Best Practices
With a 5,000-pound towing capacity, this hybrid can handle most mid-sized campers and boats. However, towing puts a massive load on the 10-speed transmission and the cooling system.
Always use “Tow/Haul” mode when pulling a load. This mode changes the shift points and maximizes the use of regenerative braking to help slow the trailer on downhill grades.
I highly recommend installing an auxiliary transmission cooler if you plan on towing near the limit in hot climates. Heat is the number one enemy of the hybrid transmission’s internal clutches.
Managing Tongue Weight
The hybrid battery adds weight to the rear of the chassis. Be very careful not to exceed the maximum tongue weight, as this can cause the rear suspension to bottom out and affect steering geometry.
Use a weight-distribution hitch for any trailer over 3,000 pounds. This helps level the vehicle and ensures the front tires maintain enough grip for safe braking and steering maneuvers.
Safety Steps for Working on Hybrid Systems
If you are a DIYer planning to work on the ford explorer 2020 hybrid, safety must be your top priority. The high-voltage system uses orange-colored cables that carry enough current to be fatal.
Never cut, probe, or disconnect any orange cables unless the high-voltage system has been properly decommissioned. For standard maintenance like oil changes or brakes, you do not need to touch these systems.
If you must perform work near the battery or inverter, locate the Service Disconnect Plug. Removing this plug breaks the circuit, but you should still wait at least 10 minutes for the capacitors to discharge.
Tool Recommendations for Hybrid Owners
Investing in a high-quality OBD-II scanner is essential for this vehicle. Look for one that can read “Hybrid Control Module” codes, as standard cheap scanners often miss these specific faults.
I also recommend a set of insulated hand tools if you plan on doing anything beyond basic fluid changes. Even if you aren’t touching the high-voltage lines, the extra protection is a smart safety measure.
When to Call a Professional
While DIYers can handle most mechanical tasks, the hybrid powertrain is complex. If you see a “Pull Power Reduced” message or a “High Voltage Battery Fault” on the dash, take it to a certified technician.
Hybrid systems require specialized diagnostic equipment to balance battery cells and test inverter phases. Attempting to “hot-wire” or bypass these systems can lead to expensive damage or injury.
Frequently Asked Questions About the ford explorer 2020 hybrid
How long does the hybrid battery last?
Ford designs these batteries to last the life of the vehicle, typically 8 to 10 years or 100,000 to 150,000 miles. Ford also provides a specific 8-year/100,000-mile warranty on hybrid components.
Does the hybrid get better gas mileage on the highway?
Generally, hybrids excel in city driving where regenerative braking is most active. On the highway, the 3.3L V6 does most of the work, but the hybrid system still assists during passing and hill climbs.
Can I jump-start a 2020 Explorer Hybrid?
Yes, you can jump-start the 12V battery using the terminals located under the hood. However, you cannot use the vehicle to jump-start a large diesel truck, as the 12V system isn’t designed for that high of a draw.
Is the hybrid system worth it for off-roading?
Yes, the instant torque from the electric motor is a major benefit in low-speed off-road situations. It provides smoother power delivery than a traditional turbocharged engine might offer in the same scenario.
Does the hybrid version lose cargo space?
No, Ford engineers placed the battery pack under the chassis and floorboards. This means you get the same cargo volume and third-row seating capacity as the standard gas-powered Explorer.
Closing Thoughts on Maintaining Your Explorer
Owning a ford explorer 2020 hybrid provides a unique blend of modern technology and traditional utility. By staying on top of the dual cooling systems and monitoring the health of the 12V battery, you can avoid the most common pitfalls.
Remember that this vehicle thrives on regular use. If you plan to leave it parked for more than a week, consider using a battery tender to keep the electronics from draining the system into “Deep Sleep” mode.
Whether you are hit the trails or hauling the family to the lake, this SUV is a powerhouse of engineering. Treat the hybrid system with respect, follow the maintenance schedules, and it will serve you well for years to come.
Stay safe on the road and enjoy the quiet power of your hybrid. Happy wrenching!
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