Can you easily put a Jeep Cherokee in 4-wheel drive? Yes, putting a Jeep Cherokee into 4-wheel drive is generally straightforward, especially with the common lever-style transfer case found in many models. This guide will walk you through the process, explaining the different modes and when to use them.
The Jeep Cherokee has long been an icon for those who love adventure and tackling challenging terrain. A key part of its capability lies in its robust 4×4 system. Knowing how to properly engage and utilize this system is crucial for maximizing your Jeep Cherokee’s performance and ensuring your safety. This article is your comprehensive guide to Jeep Cherokee 4×4 engagement, covering everything from the basics of the transfer case operation to the nuances of using 4WD on Jeep Cherokee vehicles.
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Deciphering Your Jeep Cherokee’s Drivetrain Modes
Most Jeep Cherokee models come equipped with a sophisticated drivetrain system that allows for various modes of operation. These modes are designed to optimize performance and efficiency for different driving conditions.
Understanding the 4WD Selector Lever
The primary interface for 4WD system activation in most Jeep Cherokees is the 4WD selector lever. This lever, typically located on the center console, allows you to switch between different drive modes. The exact number of positions and their functions can vary slightly depending on the specific model year and trim level of your Cherokee.
Here’s a breakdown of the common positions you’ll find:
- 2H (Two-Wheel Drive High): This is the standard mode for everyday driving on paved roads. Power is sent only to the rear wheels. It’s the most fuel-efficient setting.
- 4H (Four-Wheel Drive High): This mode engages all four wheels, providing more traction. It’s ideal for slippery surfaces like snow, ice, gravel, or wet roads. Many Cherokees with full-time 4WD Cherokee systems have a permanent 4H mode that can be used on any surface. For part-time 4WD Cherokee models, this mode is generally for use on surfaces where you anticipate losing traction, but not for dry pavement where it can cause binding in the drivetrain.
- N (Neutral): In this position, both the front and rear driveshafts are disconnected from the transfer case. This is used for towing your Jeep Cherokee behind another vehicle or if you encounter a situation where you need to roll the vehicle freely without the engine engaged. It’s crucial to only use this setting when the vehicle is stationary.
- 4L (Four-Wheel Drive Low): This is the most aggressive setting and is designed for extreme off-road conditions, steep inclines, descents, or when you need maximum torque at low speeds. Engaging Jeep Cherokee low range dramatically increases the torque sent to the wheels, allowing you to crawl over obstacles or pull heavy loads. This mode should only be engaged when the vehicle is stationary and in neutral.
Types of Jeep Cherokee 4×4 Systems
Jeep has offered a few different 4×4 systems in the Cherokee over the years. Knowing which one your vehicle has is important for proper operation.
- Selec-Trac: Many earlier models, and some later ones, featured the Selec-Trac system. This system often includes full-time 4WD capability in addition to part-time 2WD and 4WD. The key advantage here is that you can leave the transfer case in 4H Full-Time mode and it will automatically adjust power distribution between the front and rear axles as needed, providing excellent traction on varying surfaces without needing manual intervention.
- Command-Trac: This is a more traditional part-time 4WD system. It typically has the 2H, 4H, N, and 4L positions. With Command-Trac, you manually select when to engage 4WD.
- Active Drive (I, II, and with Lock): Later generation Cherokees (KL chassis) introduced the Active Drive systems.
- Active Drive I: This is a full-time, automatic 4×4 system. It can send power to the rear axle when needed but typically operates in 2WD for fuel efficiency. It doesn’t typically have a traditional lever for 2WD/4WD selection, but rather a rotary knob or button integrated with terrain management systems.
- Active Drive II: This system adds a 2-speed power transfer unit, offering a lower range gear (4L) and a locking feature. This is the most capable of the Active Drive systems and functions similarly to older part-time systems but with more advanced electronic controls.
- Active Drive with Lock: This is essentially Active Drive II with a locking center differential, providing even more robust off-road capability.
When to Use Each Mode
Choosing the right mode is key to both performance and the longevity of your Jeep Cherokee’s drivetrain.
- 2H: Best for dry, paved roads. Offers the best fuel economy.
- 4H Auto (if equipped): For varying conditions where traction might be inconsistent, such as light rain, wet leaves, or mixed pavement and dirt.
- 4H Part-Time (if equipped): Use on slippery surfaces like snow, ice, mud, sand, or gravel roads where all four wheels need to be engaged for traction. Avoid using this mode on dry pavement, as it can cause the drivetrain to bind, leading to damage.
- 4L: For severe off-road driving, climbing steep hills, descending steep grades, rock crawling, or pulling heavy loads at low speeds. Requires a stationary engagement.
Steps to Engaging 4-Wheel Drive
Putting your Jeep Cherokee into 4-wheel drive is a simple process, but it’s crucial to follow the correct steps to avoid damaging the drivetrain.
For Lever-Operated Transfer Cases (Command-Trac and older Selec-Trac)
These systems usually have a dedicated lever.
- Ensure Vehicle is Stationary: You must be stopped or moving at a very slow crawl (under 5 mph) to engage 4L. For engaging 4H from 2H, you can often do it while moving, but it’s generally best practice to be stationary or moving very slowly for smoother engagement.
- Foot on Brake: Apply the brake pedal firmly.
- Shift to Neutral (N): Move the gear selector (for the transmission, i.e., automatic or manual) into the Neutral position. This is essential for engaging 4L.
- Operate the 4WD Selector Lever:
- To engage 4H: Move the 4WD selector lever from 2H to 4H. You might hear a click or a slight engagement sound.
- To engage 4L: Move the 4WD selector lever from 4H (or 2H) past Neutral (N) to 4L. This is a firm movement and requires the vehicle to be in Neutral.
- Confirm Engagement: A 4WD indicator light on your dashboard should illuminate, confirming that the system is engaged.
- Shift Transmission: Once engaged, shift your transmission back into Drive (D) or Reverse (R).
For Rotary Dial or Push-Button Systems (Active Drive)
Later model Cherokees often use a rotary dial or buttons on the dash to select their Jeep Cherokee drivetrain modes.
- Ensure Vehicle is Stationary (for 4L): If your system offers a low range (like Active Drive II), you will need to be stationary and in Neutral to engage it, similar to the lever systems.
- Select Mode: Turn the rotary dial or press the appropriate button to select your desired mode (e.g., 4H Auto, 4H Lock, 4L).
- Confirm Engagement: Check the instrument cluster for an indicator light confirming the selected mode.
Transitioning Between Drive Modes
The way you transition between modes is as important as how you engage them.
Moving from 2H to 4H
- With Lever: While moving at a slow speed (typically under 50 mph, check your owner’s manual), move the 4WD selector lever from 2H to 4H. You should feel or hear the engagement.
- With Rotary Dial/Buttons: Simply select 4H Auto or 4H Lock while moving.
Moving from 4H to 2H
- With Lever: While moving at a slow speed, move the 4WD selector lever back to 2H.
- With Rotary Dial/Buttons: Select the 2WD mode.
Engaging Jeep Cherokee Low Range (4L)
This is where careful adherence to procedure is paramount.
- Slow Down: Bring your Cherokee to a complete stop.
- Brake Firmly: Apply the brake pedal.
- Shift to Neutral: Place your transmission into Neutral (N).
- Engage 4L: Move the 4WD selector lever from its current position (usually 4H) to 4L. This may require a firm push. Some systems might have a brief delay or an intermediate “N” position on the lever itself.
- Confirm Engagement: Look for the 4L indicator light on your dashboard.
- Shift Back to Drive/Reverse: Once 4L is confirmed, shift your transmission back into Drive (D) or Reverse (R).
Disengaging Jeep Cherokee Low Range (4L)
The process is the reverse of engaging 4L.
- Slow Down: Come to a complete stop.
- Brake Firmly: Apply the brake pedal.
- Shift to Neutral: Place your transmission into Neutral (N).
- Disengage 4L: Move the 4WD selector lever from 4L back to 4H (or 2H, depending on your intended next mode).
- Confirm Disengagement: The 4L indicator light should turn off, and the 4H or 2H indicator should illuminate.
- Shift Back to Drive/Reverse: Once disengaged, shift your transmission back into Drive (D) or Reverse (R).
Best Practices for Using 4WD on Jeep Cherokee
Maximizing your Cherokee’s off-road prowess involves more than just flipping a switch.
When to Use 4WD for Off-Road Driving Jeep Cherokee
- Muddy Trails: Essential for maintaining traction and forward momentum.
- Sandy Conditions: Helps prevent the tires from digging in too deep.
- Rocky Terrain: 4L provides the low-speed torque needed to crawl over obstacles smoothly.
- Steep Inclines/Declines: Improves control and reduces the risk of sliding.
- Snow and Ice: Provides significantly better grip than 2WD.
When to Avoid 4WD Engagement
- Dry Pavement: For part-time 4WD systems, driving on dry, high-traction surfaces in 4H or 4L can cause the front and rear driveshafts to bind. This is because the front and rear axles are locked together in ratio, but on dry pavement, the wheels are traveling at different speeds through turns. This binding puts immense stress on the transfer case, differentials, and other drivetrain components, potentially leading to expensive damage. Full-time 4WD systems (like some Selec-Trac or Active Drive Auto) do not have this limitation. Always consult your owner’s manual to know if your system can be used on dry pavement.
Maintaining Your 4WD System
Regular maintenance is key to ensuring your Jeep Cherokee drivetrain modes function correctly for years to come.
- Fluid Changes: The transfer case and differential fluid should be changed according to the manufacturer’s recommended schedule.
- Inspect Drivetrain Components: Periodically check for leaks, worn U-joints, and damaged driveshafts.
- Engage Regularly: Even if you don’t off-road often, it’s a good practice to engage 4WD (especially 4L) periodically on a slippery surface (like a gravel road) to keep the components lubricated and free from seizing.
Common Scenarios and Solutions
Let’s look at some frequent questions and situations.
What if the 4WD Won’t Engage?
Several factors can prevent Jeep Cherokee 4×4 engagement:
- Incorrect Procedure: Double-check that you are following the correct steps for your specific model (e.g., in Neutral for 4L, vehicle stationary).
- Speed Too High: If trying to engage 4H while moving, ensure you are not exceeding the recommended speed limit for engagement.
- Vacuum Leaks (Older Models): Some older systems used vacuum-actuated hubs. Leaks can prevent engagement.
- Blown Fuse or Faulty Sensor: Electronic control modules and sensors play a role in modern 4WD systems. A blown fuse or a faulty sensor can disrupt engagement. Check your fuse box.
- Mechanical Issues: The transfer case itself or the linkage/actuators could have internal problems.
- Tire Size Mismatch: Significantly different tire sizes on the front and rear axles can sometimes cause issues with electronic 4WD systems.
If you’re having trouble, consult your owner’s manual first. If the problem persists, it’s best to have it inspected by a qualified mechanic.
What Does “4WD Low Range” Mean?
Jeep Cherokee low range (4L) means that the transfer case is shifting into a lower gear ratio. This multiplies the torque sent to the wheels by a significant factor (often around 2.72:1 or more). This provides much more power at very low speeds, allowing the vehicle to:
- Climb steep hills with ease.
- Descend steep hills without excessive braking.
- Crawl over obstacles like rocks and logs without stalling.
- Pull heavy loads from a standstill.
Can I Use My Jeep Cherokee in 4WD on a Car Wash Conveyor?
Generally, no. Car wash conveyors often move the vehicle in a way that can cause drivetrain binding, especially if the wash cycle involves turning wheels or if you are in 4H on a part-time system. It’s best to use 2WD for car washes.
What’s the Difference Between Full-Time 4WD and Part-Time 4WD?
This is a crucial distinction for using 4WD on Jeep Cherokee:
| Feature | Full-Time 4WD Cherokee | Part-Time 4WD Cherokee |
|---|---|---|
| Power Distribution | Automatically distributes power between front and rear axles | Power is typically sent only to the rear until 4WD is engaged |
| Surface Use | Can be used on all surfaces, including dry pavement | Best used on slippery or loose surfaces; avoid dry pavement |
| Engagement | Often automatic or requires selection of a mode (e.g., 4H Auto) | Manual engagement of 4H and 4L via lever or dial |
| Complexity | More complex, often with electronic controls | Simpler mechanical systems |
| Fuel Economy | Can be slightly lower than part-time 2WD, but generally efficient | Can offer better fuel economy in 2WD mode |
| Examples | Some Selec-Trac, Active Drive I | Command-Trac, Active Drive II |
Frequently Asked Questions (FAQ)
Q1: How fast can I drive in 4-wheel drive in my Jeep Cherokee?
For 4H (Four-Wheel Drive High), you can typically drive at highway speeds, but always consult your owner’s manual for the specific speed limit for your model. For 4L (Four-Wheel Drive Low), you should only drive at low speeds, generally under 25-30 mph, as it’s designed for low-speed, high-torque situations.
Q2: Do I need to put my Jeep Cherokee in 4WD if it’s raining?
If it’s just raining lightly or the roads are damp, your standard 2WD mode is usually sufficient. However, if the rain is heavy, leading to standing water or very slippery conditions, engaging 4H can provide improved traction and stability. For models with full-time 4WD Cherokee systems, the 4H Auto mode is excellent for these conditions.
Q3: Can I tow my Jeep Cherokee with all four wheels on the ground?
Only if your Jeep Cherokee’s transfer case is in Neutral (N) and the transmission is also in Park (for automatics) or in gear (for manuals, though Neutral is generally preferred). However, many modern Cherokees, especially those with complex electronic 4WD systems or specific transfer cases, may have limitations or recommendations against flat-towing. Always consult your owner’s manual for specific towing instructions for your model year. Improper flat-towing can cause severe damage to the drivetrain.
Q4: How do I know if my Jeep Cherokee has a locking differential?
Locking differentials are typically found on higher-performance or off-road oriented trims and are often an optional upgrade. If your Cherokee has a locking differential (often called a “locking 4×4” or similar), it will usually have an additional button or a specific setting on the 4WD selector lever or rotary dial to engage it. This mechanically locks the axle shafts together, ensuring that both wheels on that axle turn at the same speed, even if one loses traction. This is distinct from the center differential lock, which locks the front and rear driveshafts together.
Q5: Is it bad for my Jeep Cherokee to be in 4WD all the time?
For part-time 4WD Cherokee systems, it is generally not recommended to be in 4WD all the time, especially on dry pavement. This can lead to drivetrain binding and premature wear or damage. However, for full-time 4WD Cherokee systems (like Selec-Trac’s 4H Auto or Active Drive I), these systems are designed to be driven on any surface, and leaving them in their automatic mode is perfectly fine and even beneficial for traction.
By familiarizing yourself with these modes and best practices, you can confidently navigate various driving conditions and unlock the full potential of your Jeep Cherokee’s legendary 4×4 capabilities. Remember, when in doubt, always refer to your owner’s manual for the most accurate and model-specific information.