The 2017 Grand Cherokee Limited uses an eight-speed automatic transmission designed for smooth power delivery. The 2017 Jeep Grand Cherokee Limited transmission is a key component that defines this SUV’s driving character. It pairs with either the standard 3.6L V6 or optional 5.7L Hemi V8, shifting gears almost imperceptibly under normal driving.
This article covers everything you need to know about this transmission. You’ll learn about its specs, common issues, maintenance tips, and how to keep it running strong for years. Let’s get started.
2017 Jeep Grand Cherokee Limited Transmission Overview
The 2017 model year brought the ZF 8HP eight-speed automatic to the Grand Cherokee lineup. This transmission replaced the older five-speed unit found in previous generations. It’s built for both fuel economy and responsive performance.
Key specifications include:
- Eight forward gears plus reverse
- Electronic shift control with adaptive learning
- Torque converter lockup in most gears
- Maximum towing capacity of 6,200 lbs with V6, 7,200 lbs with V8
- Fluid capacity approximately 9.5 quarts
This transmission is shared across many vehicles from BMW, Audi, and other manufacturers. It’s widely regarded as one of the best automatic transmissions ever built. However, no component is perfect, and the 2017 Jeep Grand Cherokee Limited transmission does have some known quirks.
How The Eight-Speed Transmission Works
The ZF 8HP uses a complex planetary gearset arrangement. It shifts quickly and smoothly thanks to multiple clutch packs and one-way clutches. The transmission control module (TCM) manages shift points based on driving style, load, and terrain.
In normal driving, the transmission upshifts early to save fuel. Under hard acceleration, it holds gears longer and downshifts aggressively. The adaptive learning feature means the transmission adjusts to your driving habits over time.
One notable feature is the ability to skip gears during downshifts. For example, it can go from 8th gear directly to 4th gear when you need passing power. This makes the transmission feel responsive without being harsh.
Common 2017 Jeep Grand Cherokee Limited Transmission Issues
While generally reliable, some owners report problems with this transmission. Understanding these issues helps you diagnose problems early. Here are the most common complaints.
Harsh Shifting Or Jerking
Some drivers experience rough shifts, especially between 2nd and 3rd gear. This can feel like a hard clunk or hesitation. Causes include low transmission fluid, software glitches, or worn valve body components.
If you notice jerking, check the fluid level first. Low fluid often causes harsh shifts. A transmission fluid change might solve the problem if the fluid is old or contaminated.
Delayed Engagement
Another common issue is a delay when shifting from Park to Drive or Reverse. You might wait 2-3 seconds before the transmission engages. This is often caused by low fluid pressure or a failing valve body.
Delayed engagement can also result from a worn torque converter. If the delay is consistent, have a mechanic inspect the transmission as soon as possible.
Transmission Slipping
Slipping occurs when the engine revs but the vehicle doesn’t accelerate properly. This is a serious issue that indicates internal wear. Causes include worn clutch packs, low fluid, or a failing torque converter.
If you experience slipping, stop driving immediately. Continued operation can cause catastrophic damage. Have the transmission diagnosed by a specialist.
Overheating
The 2017 Grand Cherokee Limited transmission can overheat during heavy towing or off-road use. Overheating leads to fluid breakdown and internal damage. Symptoms include a burning smell, warning lights, or erratic shifting.
Installing an aftermarket transmission cooler can help if you tow frequently. Regular fluid changes also reduce overheating risk.
Software Glitches
Some issues are caused by software bugs rather than mechanical problems. The TCM may need a software update from the dealer. These updates can improve shift quality and fix erratic behavior.
Check with your local Jeep dealer for any outstanding recalls or technical service bulletins (TSBs) related to the transmission.
2017 Jeep Grand Cherokee Limited Transmission Maintenance
Proper maintenance extends the life of your transmission. The 2017 Jeep Grand Cherokee Limited transmission requires specific care to avoid expensive repairs. Follow these guidelines.
Fluid Change Interval
Jeep recommends checking transmission fluid every 30,000 miles. However, they don’t specify a mandatory change interval. Most experts recommend changing the fluid every 60,000 to 80,000 miles for normal driving.
If you tow frequently or drive in severe conditions, change it every 40,000 miles. Using the correct fluid is critical. The 2017 Grand Cherokee requires ZF LifeguardFluid 8 or equivalent Mopar ATF+4.
How To Check Transmission Fluid
Unlike older transmissions, the 2017 model doesn’t have a traditional dipstick. Checking fluid level requires a special procedure. Here’s how it’s done.
- Park the vehicle on a level surface
- Start the engine and let it reach operating temperature
- Shift through all gears, pausing in each for 2 seconds
- With the engine running, remove the fill plug on the transmission pan
- Fluid should just trickle out when at the correct level
- If no fluid comes out, add fluid until it trickles
This procedure is best left to a professional. Overfilling or underfilling can cause serious problems.
Transmission Filter Replacement
The transmission has an internal filter that should be replaced during fluid changes. The filter is located inside the pan. Replacing it requires dropping the pan and cleaning it thoroughly.
Always use a genuine Mopar or ZF filter kit. Aftermarket filters may not fit correctly or provide proper filtration.
Torque Converter Care
The torque converter is a wear item that can fail over time. Symptoms include shuddering at highway speeds or a whining noise. If the torque converter fails, it can send debris through the transmission.
Regular fluid changes help extend torque converter life. If you notice shuddering, have the system flushed and inspected.
Transmission Performance And Towing
The 2017 Jeep Grand Cherokee Limited transmission is designed for both on-road comfort and towing capability. It handles heavy loads well when properly maintained.
Towing Capacity
With the 3.6L V6, maximum towing capacity is 6,200 pounds. The 5.7L Hemi V8 increases that to 7,200 pounds. These figures assume proper equipment and a properly loaded trailer.
The transmission’s eight speeds help keep the engine in its power band while towing. Lower gears provide torque for climbing, while higher gears reduce RPM on the highway.
Towing Tips
Follow these tips to protect your transmission while towing.
- Use tow/haul mode to change shift patterns
- Avoid overloading the vehicle beyond its GVWR
- Install a transmission temperature gauge if you tow often
- Let the transmission cool down after heavy towing
- Check fluid level before each towing trip
Off-Road Performance
The Grand Cherokee Limited is capable off-road, but the transmission requires care in rough terrain. Low-range gearing (if equipped with Quadra-Drive II) provides better control on steep inclines.
Avoid riding the brakes downhill. Instead, use engine braking by selecting a lower gear manually. This reduces heat buildup in the transmission.
Transmission Repair And Replacement Costs
If your 2017 Jeep Grand Cherokee Limited transmission fails, repair costs can be significant. Understanding the potential expenses helps you budget accordingly.
Common Repair Costs
Minor repairs like valve body replacement cost $800 to $1,500. Torque converter replacement runs $1,200 to $2,000. A full transmission rebuild costs $3,000 to $5,000.
Replacing the transmission with a new or remanufactured unit costs $4,000 to $7,000 including labor. Used transmissions from salvage yards cost $1,500 to $3,000 but carry no warranty.
DIY Vs Professional Repair
Some owners attempt DIY transmission repairs. This is not recommended for the 2017 Grand Cherokee. The transmission is complex and requires specialized tools and knowledge.
Professional repair ensures proper diagnosis and correct parts. Many shops offer warranties on their work, giving you peace of mind.
Extended Warranty Options
If your vehicle is still under warranty, transmission repairs may be covered. Jeep’s factory warranty covers 3 years or 36,000 miles. Powertrain coverage extends to 5 years or 60,000 miles.
After the factory warranty expires, consider an extended warranty. Some plans cover transmission repairs up to 100,000 miles. Read the fine print carefully to understand what’s included.
Transmission Fluid Type And Specifications
Using the correct fluid is essential for the 2017 Jeep Grand Cherokee Limited transmission. The wrong fluid can cause shifting problems and internal damage.
Required Fluid
The transmission requires ZF LifeguardFluid 8. This is a synthetic fluid specifically formulated for the 8HP transmission. Mopar also sells this fluid under part number 68218925AB.
Do not use generic ATF+4 or other fluids. They lack the proper friction modifiers and additives. Using the wrong fluid voids any warranty and can lead to premature failure.
Fluid Capacity
The transmission holds approximately 9.5 quarts when dry. A standard fluid change replaces about 5 to 6 quarts. A full flush replaces all fluid but requires special equipment.
Always check the fluid level after a change. Incorrect levels cause shifting problems and overheating.
Where To Buy Fluid
You can purchase ZF LifeguardFluid 8 from Jeep dealers, online retailers, or specialty parts stores. Expect to pay $15 to $25 per quart. Buying in bulk can save money.
Avoid counterfeit products. Purchase from reputable sources to ensure you get genuine fluid.
Transmission Control Module (TCM) Updates
Software updates can improve transmission performance. The TCM controls shift points, line pressure, and adaptive learning. Outdated software can cause rough shifts or erratic behavior.
How To Check For Updates
Contact your local Jeep dealer and provide your VIN. They can check for any available TCM updates. Some updates are free under warranty or recall campaigns.
You can also check online using Jeep’s owner portal. Enter your VIN to see outstanding recalls and service bulletins.
Benefits Of Updating
Updated software often improves shift quality, especially during cold starts. It can also fix issues with delayed engagement or harsh downshifts. Some updates improve fuel economy by optimizing shift points.
If you experience transmission problems, ask the dealer to check for updates before pursuing mechanical repairs.
DIY TCM Updates
Some owners attempt to update the TCM themselves using aftermarket tools. This is risky and can brick the transmission control module. Leave updates to professionals.
Frequently Asked Questions
Q: Is the 2017 Jeep Grand Cherokee Limited transmission reliable?
A: Generally yes, but some owners report issues with harsh shifting or delayed engagement. Regular maintenance helps prevent problems.
Q: How often should I change the transmission fluid on my 2017 Grand Cherokee Limited?
A: Every 60,000 to 80,000 miles for normal driving. Change it every 40,000 miles if you tow or drive in severe conditions.
Q: Can I use any ATF fluid in the 2017 Grand Cherokee Limited transmission?
A: No. You must use ZF LifeguardFluid 8 or Mopar ATF+4 specifically for this transmission. Other fluids can cause damage.
Q: What causes the transmission to slip in a 2017 Grand Cherokee Limited?
A: Common causes include low fluid, worn clutch packs, or a failing torque converter. Have it diagnosed immediately to avoid further damage.
Q: Does the 2017 Grand Cherokee Limited transmission have a dipstick?
A: No, it does not. Checking fluid level requires removing the fill plug on the transmission pan while the engine is running.
Final Thoughts On The 2017 Jeep Grand Cherokee Limited Transmission
The 2017 Jeep Grand Cherokee Limited transmission is a sophisticated piece of engineering. It delivers smooth shifts, good fuel economy, and strong towing capability. However, it requires proper maintenance to avoid costly repairs.
If you own this vehicle, stay on top of fluid changes and address any issues early. Check for software updates and use only the correct fluid. With proper care, this transmission can last well over 200,000 miles.
Remember that the 2017 Jeep Grand Cherokee Limited transmission is shared with many other vehicles, so parts and service are widely available. Don’t ignore warning signs like harsh shifting or delayed engagement. Early intervention saves money and keeps your SUV on the road.
Whether you use your Grand Cherokee for daily commuting, weekend adventures, or heavy towing, the eight-speed transmission is up to the task. Treat it well, and it will serve you faithfully for years to come.