How To Put 2019 Jeep Sahara In 4 Wheel Drive: Easy Guide

Getting your 2019 Jeep Sahara into 4 wheel drive can make a big difference when you’re driving off-road, in snow, or on muddy roads. Many drivers are unsure how to use the 4WD system correctly, and some worry about damaging their vehicle. But with clear steps and a little understanding, you can use your Jeep’s 4WD confidently and safely. If you’re new to driving a Jeep or just want to know more about your Sahara’s four-wheel-drive features, this guide explains everything you need to know.

Understanding The 2019 Jeep Sahara 4wd System

The 2019 Jeep Sahara comes with the Selec-Trac 4×4 system. This system is different from older Jeeps and other SUVs. It gives you more control and flexibility on different surfaces. The main parts to know about are:

• 2H (Two-Wheel Drive High): Normal driving on dry, paved roads.
• 4H (Four-Wheel Drive High): For slippery or loose roads (snow, sand, gravel, mud).
• N (Neutral): Used when towing the Jeep.
• 4L (Four-Wheel Drive Low): For slow, difficult off-road situations (deep sand, steep hills, rocks).

You select these modes using a lever or switch next to the gear shifter. Knowing when and how to use each mode is key to safe and efficient driving.

When To Use 4 Wheel Drive

Using the right drive mode helps prevent tire wear and protects your vehicle. Here’s when each mode is best:

• 2H: Most daily driving on highways or city roads.
• 4H: When roads are wet, snowy, or covered in loose gravel.
• 4L: Off-roading, deep mud or sand, or climbing/descending steep hills.

Never use 4H or 4L on dry pavement, as this can damage your Jeep’s drivetrain.

How To Put Your 2019 Jeep Sahara In 4 Wheel Drive

Switching to 4WD is simple, but you need to follow the steps carefully for each mode. Here’s how to do it:

Engaging 4h (four-wheel Drive High)

• Keep the Jeep rolling slowly (under 45 mph).
• Move the 4WD lever straight from 2H to 4H. You can do this while driving.
• A light on your dashboard will confirm you are in 4H.
• You’re now ready for slippery or rough roads.

Engaging 4l (four-wheel Drive Low)

• Stop the vehicle completely.
• Keep your foot on the brake.
• Shift the transmission to Neutral (N).
• Pull the 4WD lever firmly from 4H to 4L. You may feel some resistance.
• Wait for the 4L indicator light on the dashboard.
• Shift the transmission back to Drive (D) or Reverse (R) and proceed slowly.

Returning To 2h

• Slow down to under 45 mph (if not already stopped).
• Move the lever from 4H to 2H. This can be done while driving.
• For 4L, stop the vehicle, shift transmission to Neutral, then move the lever back to 2H.

Tip: Always make sure the indicator lights are showing the mode you want before you start driving.

Common Mistakes To Avoid

Many first-time Jeep owners make simple errors when using the 4WD system. Here are some mistakes to watch for:

• Engaging 4L while moving: Always stop the vehicle first.
• Using 4H or 4L on dry pavement: This can cause drivetrain binding.
• Not shifting the transmission to Neutral when needed: You cannot engage 4L without being in Neutral.
• Driving fast in 4L: This mode is only for low speeds.

Being careful with these steps will keep your Jeep running smoothly.

How The Selec-trac System Compares

The Selec-Trac system in the 2019 Sahara is more flexible than older Jeep systems. It offers an Auto mode, which automatically switches between 2WD and 4WD as needed. Let’s compare Selec-Trac with Command-Trac and Rock-Trac systems:

Selec-Trac is ideal for daily drivers who sometimes face bad weather or light off-roading.

Practical Tips For First-time 4wd Users

If you’re new to four-wheel drive, these tips will help you avoid problems and get the best performance:

• Practice in a safe area: Try switching modes in an empty parking lot.
• Listen for clicks or grinding: If you hear noises when shifting, stop and try again.
• Check the dashboard lights: They confirm the system is working.
• Use low speeds in 4L: Never go over 25 mph in this mode.
• Turn gently: Tight turns on high-traction surfaces can cause tire binding.
• Read your owner’s manual: It has details specific to your model.

Real-world Example: Using 4wd In Snow

Imagine you are caught in a snowstorm on a country road. The tires start to slip, and you feel the Jeep losing grip. Here’s what you should do:

• Slow down to under 45 mph.
• Move the 4WD lever to 4H.
• Check for the 4H light on the dash.
• Drive slowly and steadily, avoiding sudden turns or stops.

With 4H engaged, power goes to all four wheels, giving you better control and reducing the chance of getting stuck.

What If The 4wd System Doesn’t Engage?

Sometimes, the system may not switch as expected. Here are possible reasons:

• The Jeep is moving too fast for 4L.
• The transmission is not in Neutral.
• There is a fault with the 4WD system.

Try stopping and following the steps again. If you still have problems, it’s best to have a mechanic check your Jeep.

How 4wd Affects Fuel Economy

Using 4 wheel drive adds extra drag and uses more fuel. Here’s a quick look at the difference:

Use 4WD only when you need it to save fuel.

How To Maintain Your 4wd System

Keeping your 4WD system in good shape is simple if you follow these tips:

• Use 4WD regularly: Engage 4H and 4L once a month to keep parts lubricated.
• Check for leaks: Look under the Jeep for oil drips.
• Listen for noises: Grinding or clunking can mean trouble.
• Have fluids changed: The transfer case and axles need fresh fluid every 30,000 miles or as recommended.

Regular maintenance can prevent expensive repairs.

Can You Shift Between Modes While Driving?

One of the best features of the Selec-Trac system is you can switch from 2H to 4H while moving, as long as you’re below 45 mph. But for 4L, you must be stopped and in Neutral.

This makes it easy to adapt as road conditions change without stopping the vehicle for 4H.

How To Tell If 4wd Is Working

Sometimes it’s hard to know if your Jeep is really in 4WD. Here’s what to check:

• Indicator lights: The dashboard shows the active mode.
• Feel for changes: Turning may feel tighter, and traction improves.
• Listen for new sounds: Some noise is normal, but loud grinding is not.

If you’re unsure, test the 4WD on loose gravel or dirt. The wheels should pull the Jeep forward evenly.

What To Do If You Get Stuck

Even with 4WD, you can get stuck in deep snow or mud. Here’s what to do:

• Shift to 4L for maximum torque.
• Rock the Jeep gently back and forth.
• Lower tire pressure slightly for more grip (only if safe).
• Avoid spinning wheels—this digs you in deeper.

Carry recovery tools like a shovel, traction boards, and a tow strap for emergencies.

Advanced Off-road Tips

If you plan to use your Jeep for serious off-roading, keep these points in mind:

• Use 4L for rocky, steep, or very rough terrain.
• Lock differentials if your model has that feature.
• Go slow—off-roading is not about speed.
• Scout the trail before driving into deep water or mud.

Joining a local Jeep club can also teach you valuable techniques.

Safety Reminders

Always keep these safety tips in mind:

• Never shift to 4L at speed: This can damage your Jeep.
• Don’t use cruise control in 4WD: You need full control.
• Watch for warning lights: Stop if you see “Service 4WD” messages.
• Let the system cool after heavy use off-road.

What Makes The 2019 Jeep Sahara Special?

The 2019 Sahara stands out because of its mix of comfort and off-road ability. It’s one of the few SUVs with a true part-time 4WD system and a full suite of modern features. The Selec-Trac system’s Auto mode is unique, letting you drive all year in different conditions without worry.

For a deeper dive into Jeep’s 4×4 technology, check out the Jeep Official 4×4 Guide.

Frequently Asked Questions

How Fast Can I Drive In 4h?

You can drive up to 45 mph in 4H on slippery roads. Going faster can stress the drivetrain and reduce control.

Can I Switch Directly From 2h To 4l While Moving?

No. You must stop the Jeep and shift the transmission to Neutral before engaging 4L.

Is It Bad To Leave My Jeep In 4h All Winter?

It’s safe if roads are consistently slippery. If roads dry out, switch back to 2H to avoid damage and save fuel.

Why Do The Wheels Feel Tight When Turning In 4wd?

This is called drivetrain binding. It happens if you use 4WD on dry pavement, where the wheels can’t slip. Only use 4WD on loose or slippery surfaces.

What Should I Do If The 4wd Warning Light Comes On?

Stop and consult your owner’s manual. If the light stays on, have your Jeep checked by a mechanic.

Driving a 2019 Jeep Sahara in 4 wheel drive can be simple and safe with the right steps. By understanding how and when to use your 4WD system, you can tackle tough roads and weather without worry.

With practice, you’ll gain confidence and enjoy all the adventures your Jeep has to offer.