The 2020 Jeep Grand Cherokee offers multiple transmission options, including a smooth-shifting eight-speed automatic. This gearbox is a key part of why the Grand Cherokee feels refined on the highway and capable off-road. Whether you are looking at a V6 or a powerful V8, the transmission plays a big role in your driving experience.
Many drivers wonder about reliability, towing capacity, and common issues. This article covers everything you need to know about the 2020 Jeep Grand Cherokee transmission. We will break down the specs, performance, and maintenance tips in a simple way.
2020 Jeep Grand Cherokee Transmission
The standard transmission across most 2020 Grand Cherokee trims is the TorqueFlite eight-speed automatic. This is a big upgrade from older six-speed units. It helps with fuel economy and makes acceleration feel smoother.
Jeep pairs this transmission with three main engine choices. The 3.6-liter Pentastar V6 is the most common. You also get a 5.7-liter HEMI V8 and a 6.4-liter HEMI V8 in the SRT and Trackhawk models. Each engine gets a slightly different calibration for the transmission.
Eight-Speed Automatic Overview
This transmission is built by ZF, a German supplier known for quality. Jeep calls it the 850RE for V6 models and the 8HP75 for V8 models. The main difference is torque capacity.
- 850RE: Handles up to 450 lb-ft of torque. Used with the 3.6L V6.
- 8HP75: Handles up to 550 lb-ft of torque. Used with the 5.7L and 6.4L V8s.
- 8HP95: Used in the Trackhawk with the supercharged 6.2L V8. Handles over 600 lb-ft.
All versions shift quickly and smoothly. The computer learns your driving style over time. This can make the car feel more responsive or more relaxed depending on how you drive.
Performance And Driving Feel
The eight-speed automatic shifts almost imperceptibly at highway speeds. Downshifts are quick when you need to pass. In off-road situations, the transmission holds gears well to avoid hunting.
You can also shift manually using the steering wheel paddles. This is handy for engine braking on steep hills. The transmission responds fast to paddle inputs, though not as fast as a dual-clutch system.
Fuel economy benefits are real. The V6 model gets up to 19 mpg city and 26 mpg highway. The eight-speed keeps the engine in its sweet spot more often than a six-speed would.
Common Transmission Issues
No transmission is perfect, and the 2020 Grand Cherokee has some reported problems. Most are minor, but a few can be serious. Here are the most common issues owners face.
Rough Shifting Or Hesitation
Some owners report harsh shifts, especially between first and second gear. This can feel like a slight clunk. It often happens when the transmission is cold.
In many cases, a software update fixes this. Jeep dealers can reflash the transmission control module. If the problem persists, it might be a valve body issue.
Delayed Engagement
When shifting from Park to Drive or Reverse, some drivers notice a delay. The car might take a second or two to engage. This is more common in V8 models.
Low transmission fluid can cause this. So can a worn solenoid pack. Checking fluid level is the first step, but the 8-speed has a sealed system that requires special tools.
Transmission Overheating
Towing heavy loads can cause the transmission to overheat. The 2020 Grand Cherokee has a transmission cooler, but it can be marginal in hot weather. If you see a warning light, stop and let it cool down.
Adding an aftermarket cooler helps if you tow often. Also, avoid using “Sport” mode when towing, as it holds gears longer and generates more heat.
Shudder Or Vibration
A low-frequency shudder at highway speeds can indicate torque converter issues. This is rare but reported. The torque converter lockup clutch may be wearing unevenly.
If you feel a vibration between 45 and 65 mph, have it checked. A fluid flush might help, but sometimes the torque converter needs replacement.
Maintenance And Fluid Changes
Jeep says the transmission fluid is “lifetime” and never needs changing. Many mechanics disagree. For long-term reliability, regular fluid changes are a good idea.
When To Change Fluid
For normal driving, change the fluid every 60,000 to 80,000 miles. If you tow or drive off-road often, do it every 40,000 miles. This keeps the fluid fresh and prevents sludge buildup.
The 8-speed uses ZF LifeguardFluid 8 or equivalent. Do not use generic ATF. Using the wrong fluid can cause shifting problems and damage seals.
How To Check Fluid Level
Unlike older transmissions, the 8-speed has no dipstick. Checking fluid requires lifting the vehicle and removing a fill plug. The fluid must be at a specific temperature, usually around 104°F.
This is best left to a professional. A dealer or transmission shop has the scan tool to monitor fluid temperature. Overfilling is just as bad as underfilling.
DIY Fluid Change Steps
If you are handy, you can change the fluid yourself. Here is a basic outline:
- Jack up the vehicle securely and place on stands.
- Remove the transmission pan. Be ready for fluid to spill.
- Replace the filter inside the pan.
- Clean the pan and magnet. Reinstall with a new gasket.
- Fill through the side plug until fluid drips out.
- Start the engine and let it idle. Add more fluid until it drips again.
- Cycle through all gears. Check fluid level again at operating temperature.
This process takes about two hours. Have a helper to watch for leaks while you fill.
Towing Capacity And Transmission
The 2020 Grand Cherokee can tow up to 7,200 pounds with the V8 and the proper equipment. The V6 tows up to 6,200 pounds. The transmission is a big part of this capability.
Tow Mode Features
When you activate Tow/Haul mode, the transmission changes its shift pattern. It holds gears longer to keep the engine in the power band. It also downshifts more aggressively for engine braking.
This reduces brake wear on long descents. The transmission also monitors temperature and will alert you if it gets too hot. Some models have a transmission temperature gauge in the instrument cluster.
Trailer Sway Control
The transmission works with the stability control system to reduce trailer sway. If the system detects sway, it can downshift and apply brakes selectively. This helps keep the rig stable.
This feature is standard on all trims with the tow package. It adds confidence when towing in windy conditions or on uneven roads.
Comparing Transmission Options
While the eight-speed automatic is the only choice for 2020, there are differences between trims. Here is a quick comparison.
Laredo And Limited
These trims come with the 850RE transmission paired to the V6. The shift quality is smooth and fuel-focused. You get paddle shifters as standard equipment.
The transmission tuning is conservative. It upshifts early to save gas. In Sport mode, it holds gears longer and sharpens throttle response.
Overland And Summit
These higher trims can have the V6 or V8. With the V8, you get the 8HP75 transmission. This version has stronger internals to handle the extra torque.
The shift quality is similar, but the V8 version feels more responsive. The transmission also has a “Eco” mode that disables cylinders in the V8 for better fuel economy.
SRT And Trackhawk
The SRT uses the 8HP75 with performance calibration. Shifts are faster and firmer. The Trackhawk uses the 8HP95 to handle the supercharged engine’s 707 lb-ft of torque.
These transmissions have launch control and line pressure adjustments. They are built for high-performance driving and track use. Regular maintenance is even more critical here.
Software Updates And Recalls
Jeep has issued several software updates for the 2020 Grand Cherokee transmission. These address shifting quality and occasional hesitation. Check with your dealer to see if your vehicle is up to date.
Recall Information
There was a recall for some 2020 models related to the transmission oil cooler line. The line could leak fluid and cause a fire risk. Jeep replaced the lines free of charge.
Another recall involved the transmission parking pawl. In rare cases, the pawl could fail and allow the vehicle to roll. Dealers inspected and replaced the part if needed.
You can check your VIN on the NHTSA website for any open recalls. Do not ignore these notices, as they are safety related.
How To Get Updates
Call your local Jeep dealer and ask about TSBs (Technical Service Bulletins) for the transmission. Common TSBs include reprogramming the TCM for smoother shifts and fixing a delayed reverse engagement.
Some updates are covered under warranty. Even if your warranty expired, some dealers offer goodwill repairs for known issues. It never hurts to ask.
Cost Of Transmission Repairs
Transmission repairs can be expensive. Knowing the costs helps you budget. Here are typical prices for common issues.
Fluid Change
A professional fluid change costs between $300 and $500. This includes fluid, filter, and labor. DIY cost is about $150 for fluid and filter kit.
Valve Body Replacement
If the valve body fails, expect to pay $1,200 to $1,800. This includes parts and labor. The valve body controls shift timing and pressure.
Torque Converter Replacement
Replacing the torque converter costs $1,500 to $2,500. This is labor-intensive because the transmission must be removed. Symptoms include shuddering or stalling.
Full Rebuild Or Replacement
A full rebuild costs $3,000 to $5,000. A remanufactured transmission from Jeep costs $4,000 to $6,000 installed. This is rare for the 8-speed, but possible with high mileage or abuse.
Tips For Long Transmission Life
You can extend the life of your 2020 Grand Cherokee transmission with good habits. Here are practical tips.
- Warm up the engine before driving hard. Let the transmission fluid circulate for a minute.
- Avoid aggressive starts from a stop. This stresses the torque converter.
- Use Tow/Haul mode when towing. It reduces heat buildup.
- Do not shift into Park until the vehicle is fully stopped.
- Change fluid on schedule, even if Jeep says it is lifetime.
- Check for leaks under the vehicle regularly.
Following these steps can help you avoid costly repairs. The 8-speed is generally reliable, but neglect can cause problems.
Frequently Asked Questions
Is The 2020 Jeep Grand Cherokee Transmission Reliable?
Overall, yes. The eight-speed automatic is well-regarded for smoothness and durability. Some owners report minor issues like rough shifting, but most are fixed with software updates. Regular maintenance helps.
Does The 2020 Grand Cherokee Have Transmission Problems?
Some models have experienced rough shifting, delayed engagement, or overheating when towing. These are not widespread but are worth knowing about. Most issues are covered under warranty or by TSBs.
How Often Should I Change The Transmission Fluid In A 2020 Grand Cherokee?
Jeep says the fluid is lifetime, but many experts recommend changing it every 60,000 to 80,000 miles. If you tow or drive in severe conditions, do it every 40,000 miles.
Can I Tow A Trailer With The 2020 Grand Cherokee V6 Transmission?
Yes, the V6 can tow up to 6,200 pounds when properly equipped. The eight-speed transmission handles this well. Use Tow/Haul mode and monitor transmission temperature.
What Type Of Transmission Fluid Does The 2020 Grand Cherokee Use?
It uses ZF LifeguardFluid 8 or equivalent. Do not use standard ATF. Check your owner’s manual for the exact specification.
Final Thoughts On The 2020 Jeep Grand Cherokee Transmission
The 2020 Jeep Grand Cherokee transmission is a strong point of the vehicle. The eight-speed automatic offers a good balance of performance and efficiency. It works well with all engine options, from the frugal V6 to the powerful V8s.
While there are some reported issues, most are manageable with proper maintenance and software updates. If you take care of the transmission, it will serve you well for many miles. Whether you are commuting, towing, or off-roading, this gearbox delivers.
Remember to check for recalls, change fluid on schedule, and listen to your vehicle. A little attention goes a long way. The 2020 Grand Cherokee remains a solid choice in the SUV market, and the transmission is a big reason why.