Checking the transmission fluid in your 2017 Jeep Grand Cherokee is an important part of regular maintenance. The transmission fluid keeps the gears shifting smoothly and prevents damage from heat and friction. If you ignore this simple task, you may face expensive repairs down the road. Many Jeep owners are surprised to learn that checking the transmission fluid is not as simple as it used to be. This guide will walk you through the entire process, show you what to watch out for, and offer tips that even experienced drivers sometimes miss.
Why Transmission Fluid Matters
The transmission fluid in your Jeep Grand Cherokee does more than just lubricate the moving parts. It also helps cool the transmission, clean internal components, and transmit power from the engine to the wheels. If the fluid is too low, dirty, or the wrong type, your vehicle may shift poorly or overheat. In severe cases, the transmission could fail completely. That’s why regular checks and fluid changes are critical for your Jeep’s long life.
Understanding The 2017 Jeep Grand Cherokee Transmission
The 2017 Grand Cherokee typically comes with either a 8-speed automatic transmission (8HP70 or 845RE) or, in some models, a 6-speed automatic. Knowing the transmission type is important because the checking method and the required fluid can differ. Jeep uses sealed transmissions, which means there is no standard dipstick under the hood. This design helps prevent contamination but makes checking the fluid level a bit more involved.
Key Transmission Types For 2017 Grand Cherokee
- 8HP70: 3.6L V6, 5.7L V8, and some diesel models
- 845RE: Other V6 gasoline models
Not sure which one you have? Check your owner’s manual or look for a sticker on the transmission housing.
Tools And Materials You’ll Need
Before you begin, gather these items:
- OBD-II scanner (to check transmission temperature)
- Transmission fluid dipstick tool (special tool, available online or from Jeep)
- Gloves and safety glasses
- Socket set and wrench
- Clean rags
- Jack and jack stands (if you need to lift the vehicle)
- Jeep-approved transmission fluid (ATF+4 or specified by your manual)
Safety First: Preparing Your Jeep
Always park your Grand Cherokee on a flat, level surface. Set the parking brake and turn off the engine. If you need to lift the car, use jack stands for extra safety. Let the engine cool slightly, but remember the transmission should be at operating temperature (about 85°C or 185°F) for an accurate reading.
Step-by-step Guide: How To Check Transmission Fluid
1. Warm Up The Engine
Start your Jeep and let it run for 10–15 minutes. This warms the transmission fluid to the correct temperature. Shift through all gears (P, R, N, D) while your foot is on the brake. This circulates the fluid.
2. Check For Leaks
With the engine running and the car in Park, look under the vehicle for any fluid leaks. Transmission fluid is usually red or pink and has a sweet smell.
3. Locate The Transmission Fluid Fill Plug
Unlike older vehicles, there’s no dipstick in the engine bay. You need to access the fill plug, which is usually on the passenger side of the transmission. Some models have a cap labeled “Transmission Fill. ”
4. Connect Obd-ii Scanner
Plug your OBD-II scanner into the port under the dashboard. This tool will show the transmission temperature, which is important for a correct reading.
5. Remove The Fill Plug
With the engine idling, use your socket wrench to carefully remove the fill plug. Be careful, as the exhaust and transmission can be hot.
6. Insert The Dipstick Tool
Insert the special transmission dipstick tool into the fill tube. Read the fluid level, then remove the tool. Wipe it, reinsert, and read again for accuracy.
7. Check The Fluid Level
Compare the reading with the marks on the dipstick tool. There are usually “Cold” and “Hot” ranges. Make sure your reading falls in the “Hot” range (since the engine is at operating temperature).
8. Inspect Fluid Quality
Good transmission fluid should be clear red and not smell burnt. If it’s dark, dirty, or smells bad, it’s time to replace it.
9. Add Fluid If Needed
If the level is low, use a funnel to add Jeep-approved ATF through the fill port. Add a little at a time and recheck the level until it’s correct.
10. Reinstall The Fill Plug
Tighten the plug securely. Make sure there are no leaks before you finish.
How Often Should You Check Transmission Fluid?
Jeep recommends checking the fluid every 30,000 to 60,000 miles, but if you tow, drive in hot weather, or notice shifting problems, check more often. Severe driving can shorten the fluid’s life.
Choosing The Right Transmission Fluid
Using the wrong fluid can seriously damage your transmission. Always use ATF+4 or the exact fluid specified in your owner’s manual. Mixing brands or types can lead to poor shifting and increased wear.
Here’s a quick comparison of common Jeep transmission fluids:
| Fluid Type | Color | Recommended For | Change Interval |
|---|---|---|---|
| ATF+4 | Red | All 2017 Jeep Grand Cherokee models | 60,000 miles |
| Dexron VI | Red | Some older Jeep models | 50,000 miles |
| Universal ATF | Pale Red | Not recommended | Varies |
Signs Of Transmission Fluid Problems
Don’t wait for warning lights. Here are common signs your transmission fluid needs attention:
- Hard or delayed shifting
- Slipping gears
- Clunking noises
- Transmission overheating warning
- Burnt smell from fluid
If you notice any of these, check your fluid as soon as possible.
Common Mistakes To Avoid
- Checking fluid when cold: Always check when fluid is at operating temperature.
- Using the wrong fluid: Double-check your manual before adding fluid.
- Overfilling: Too much fluid can cause foaming and shifting problems.
- Ignoring leaks: Even small leaks can lead to big issues over time.
- Forgetting to clean the area: Dirt around the fill plug can fall into the transmission and cause problems.
Example: What If The Level Is Too High Or Low?
If the fluid is too high, you may see bubbles or foaming in the fluid. This can cause erratic shifting. If it’s too low, the transmission might slip or overheat. Always adjust to the correct level.
A Simple Data Table: Fluid Level Readings
Here’s what typical dipstick readings mean for your 2017 Grand Cherokee:
| Dipstick Mark | Fluid Status | What to Do |
|---|---|---|
| Below “Cold” | Low Fluid | Add fluid (check for leaks) |
| In “Cold” range | OK if engine cold | Warm engine and recheck |
| In “Hot” range | Correct Level | No action needed |
| Above “Hot” | Overfilled | Drain excess fluid |
Special Note: No Dipstick? Here’s What To Do
If your 2017 Grand Cherokee doesn’t have a dipstick tube, you must check the fluid from underneath. There’s a small level check plug near the transmission pan. With the engine running and at the right temperature, remove this plug. If fluid drips out slowly, the level is correct. If none comes out, add fluid until it does.
This process can be messy and is best done with the vehicle safely lifted. Many dealerships use a special tool and follow a strict procedure, so if you’re unsure, it’s smart to get help.
Transmission Fluid Change Vs. Check
Checking fluid level is simple, but changing fluid is more complex. A full fluid change often requires:
- Removing the transmission pan
- Replacing the filter
- Using the correct torque for bolts
- Disposing of old fluid responsibly
If you’re not comfortable with these tasks, a certified Jeep technician can help.
Practical Tips For A Smooth Check
- Always use clean tools to avoid contamination.
- Keep a log of your checks and fluid changes.
- If you add fluid, do not mix brands or types.
- Double-check that all plugs are tight after finishing.
Here’s a quick comparison of DIY vs. dealer service:
| Method | Cost | Time Needed | Skill Level | Warranty Impact |
|---|---|---|---|---|
| DIY | $20–$60 | 30–60 mins | Intermediate | OK if done right |
| Dealer | $100–$250 | 1–2 hours | None | Fully covered |
Non-obvious Insights Most Owners Miss
- Transmission fluid expands as it heats: That’s why the reading changes with temperature. Always check at the temperature recommended by Jeep.
- Not all “red” fluids are the same: Some off-brand fluids look similar but do not meet Jeep’s standards. Always use certified ATF+4.
- Fluid condition matters as much as level: Even if the level is good, dirty fluid can still damage your transmission. Don’t rely on level checks alone—replace fluid on schedule.
When To See A Professional
If you notice persistent issues like slipping, delayed shifts, or warning lights, don’t wait. Modern Jeep transmissions are complex and require special tools. Certified technicians have the right diagnostic equipment and can check for hidden problems.
External Resource
For more details on transmission maintenance, the official Jeep site offers helpful guides: Jeep Maintenance.
Frequently Asked Questions
How Do I Know If My Jeep Needs Transmission Fluid?
Check for shifting problems, warning lights, or fluid on your driveway. If you’re not sure, follow the steps above to check the level and quality.
What Type Of Transmission Fluid Does A 2017 Grand Cherokee Need?
Use only ATF+4 or the exact fluid recommended in your owner’s manual. Other types can cause damage.
Can I Check The Fluid Without A Special Dipstick Tool?
Most 2017 Grand Cherokees require a special dipstick tool. If you don’t have one, you can check the level from underneath using the check plug, but it’s harder and messier.
How Much Does It Cost To Check Or Change Transmission Fluid At A Dealer?
A simple fluid check may be free or cost $20–$50. A full fluid change usually costs $100–$250 at a dealer, depending on your location and engine.
Is It Safe To Drive With Low Transmission Fluid?
No. Driving with low or dirty fluid can quickly damage your transmission. Check and top up as soon as possible if you suspect a problem.
Taking a few minutes to check your transmission fluid can save you thousands in repairs. With the right tools and careful attention, you can keep your 2017 Jeep Grand Cherokee running smoothly for years to come. If in doubt, always consult a professional—your vehicle is worth it.
