Getting your 2020 Jeep Grand Cherokee into 4WD (four-wheel drive) isn’t just about pressing a button. It’s about understanding your SUV’s systems, choosing the right mode for your road, and knowing when to engage or disengage. Many owners use 4WD for extra safety on snow, mud, sand, and steep hills. But using it wrong can cause damage, or worse, leave you stuck.
This guide explains how to put your 2020 Jeep Grand Cherokee in 4WD, step by step. We’ll cover the two main 4WD systems, common mistakes, and smart tips for both new and experienced drivers.
You’ll also see real-life comparisons and answers to the most common questions.
Understanding Your 2020 Jeep Grand Cherokee’s 4wd System
The 2020 Grand Cherokee comes with one of two main 4WD systems: Quadra-Trac II or Quadra-Drive II. Both are full-time, but each works a little differently.
| System | Type | Main Feature |
|---|---|---|
| Quadra-Trac II | Full-time 4WD | 2-speed transfer case, low range |
| Quadra-Drive II | Full-time 4WD | Electronic limited-slip rear differential |
- Quadra-Trac II: Handles most terrain with its low-range gearing.
- Quadra-Drive II: Offers better grip by moving power to the wheels with the most traction.
Knowing your system is important. Check your owner’s manual, or look for badges on your Jeep to confirm.
Steps To Put Your 2020 Jeep Grand Cherokee In 4wd
Switching to 4WD is simple, but the process depends on your specific system.
1. Identify Your 4wd Controls
Look at your center console. You’ll see a rotary knob (Selec-Terrain), buttons, and sometimes a lever. The main modes are:
- Auto
- Snow
- Sand
- Mud
- Rock (if equipped)
- 4WD Low (for crawling and tough terrain)
2. Engaging 4wd Auto (everyday Use)
The Auto mode is active by default. The vehicle’s computer shifts power between front and rear wheels as needed. No action needed here—just drive.
3. Selecting A Terrain Mode
For challenging roads, use the Selec-Terrain knob:
- Stop or slow down (under 5 mph is best).
- Turn the knob to your desired setting (Snow, Sand, Mud, or Rock).
- The system will adjust throttle, shifting, and traction control automatically.
Tip: Don’t switch modes at high speeds. It’s safe to switch while moving slowly.
4. Activating 4wd Low
4WD Low is for deep mud, sand, steep climbs, or towing at low speed.
- Stop the vehicle and shift into Neutral (N).
- Press the 4WD Low button or move the lever (if equipped).
- Wait for the indicator light to confirm engagement.
- Shift back into Drive (D) or Reverse (R).
Important: Never use 4WD Low on dry pavement. It’s for slippery or rough surfaces only.
5. Disengaging 4wd Low
- Stop and shift to Neutral.
- Press the 4WD Low button again.
- Wait for the light to go off, then shift to Drive.
6. Returning To Auto Or Other Modes
Simply turn the Selec-Terrain knob back to Auto for normal driving.
When Should You Use 4wd?
Not all roads need 4WD. Save it for:
- Snow and ice
- Loose gravel or dirt
- Deep sand or mud
- Steep hills off-road
Using 4WD on dry pavement can cause drivetrain binding and wear.
Common Mistakes To Avoid
Many new Jeep owners make these errors:
- Engaging 4WD Low at high speed – Always stop first and shift to Neutral.
- Using 4WD on dry roads – This can strain the system.
- Ignoring warning lights – If the 4WD indicator blinks or stays on, check the manual or visit a mechanic.
- Switching terrain modes at high speed – Always slow down.
Real-world Scenario
Imagine you’re on a snowy mountain road. You feel the tires slip. Instead of panicking, slow down, turn the Selec-Terrain knob to Snow, and let the Jeep’s computers do the rest. If it gets steeper or the snow is deep, stop, shift to Neutral, and engage 4WD Low. This approach keeps you safe and protects your vehicle.
Practical Tips Most People Miss
- If the Selec-Terrain knob feels stiff, don’t force it. A gentle turn is all you need.
- After using 4WD Low, always double-check that the indicator light is off. Driving in 4WD Low on normal roads will damage the Jeep.
- In deep mud or sand, turn off traction control for better wheel spin if you get stuck.
Comparing 4wd Modes
Here’s how the main modes compare for different situations:
| Mode | Best For | Speed Limit |
|---|---|---|
| Auto | Everyday driving | Any speed |
| Snow | Snow and ice | Up to 40 mph |
| Sand/Mud | Loose surfaces | Up to 25 mph |
| Rock | Slow, rocky trails | Below 10 mph |
| 4WD Low | Steep or tough terrain | Below 10 mph |
Maintenance For Your 4wd System
Keeping your 4WD system healthy is easy:
- Shift into each mode a few times per year, even if you don’t use them.
- Watch for leaks under your Jeep—transfer case fluid is crucial.
- Listen for grinding or clunking noises when shifting modes. These could mean repairs are needed.
For detailed maintenance, see the official Jeep owner site.
Frequently Asked Questions
How Do I Know Which 4wd System My Grand Cherokee Has?
Check your window sticker, owner’s manual, or look for badges near the driver’s door or on the liftgate. Quadra-Trac II and Quadra-Drive II have different features.
Can I Switch Terrain Modes While Driving?
Yes, but slow down to under 5 mph before turning the Selec-Terrain knob. For 4WD Low, always stop and shift to Neutral first.
Is It Bad To Use 4wd On Dry Roads?
Yes. Using 4WD (especially 4WD Low) on dry pavement can damage the drivetrain.
Only use it when roads are slippery or off-road.
Why Won’t My 4wd System Engage?
Common reasons include not being in Neutral, trying to switch at high speed, or a mechanical issue. Check for warning lights or consult your dealer.
What’s The Main Benefit Of 4wd Low?
4WD Low gives you more torque for tough conditions, like climbing steep hills, deep mud, or pulling heavy loads at low speed. It’s not for normal driving.
Knowing how to use your 2020 Jeep Grand Cherokee’s 4WD system gives you more control and safety in tough conditions. With these steps, tips, and comparisons, you’ll be ready for whatever the road (or trail) brings. Safe travels!
