How to Turn On the Rear Windshield Wiper on a Jeep Wrangler
Turning on the rear windshield wiper on a Jeep Wrangler is simple once you know where the controls are. Whether you drive a JK or JL model, the rear wiper helps keep your visibility clear in rain, snow, and off-road conditions. This guide walks you through every step, from locating the switch to troubleshooting common problems.
This is a comprehensive guide about How to Turn On the Rear Windshield Wiper on a Jeep Wrangler.
Key Takeaways
- Locate the rear wiper control: The switch is typically on the left side of the steering column or on the turn signal stalk.
- Know your model: JK and JL Wranglers have slightly different wiper control layouts.
- Use intermittent mode for light rain: This setting saves battery life and keeps your rear window clear without constant wiping.
- Replace blades regularly: Worn wiper blades reduce visibility and can scratch the rear glass.
- Check the fuse first: If the rear wiper stops working, a blown fuse is often the culprit.
- Off-road conditions matter: Mud and debris buildup can clog the wiper mechanism, so clean it after tough trails.
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Understanding the Rear Windshield Wiper on a Jeep Wrangler
The rear windshield wiper on a Jeep Wrangler is more than just a convenience. It is a safety feature. When you are driving through rain, snow, or mud splatter, the rear window can get just as obscured as the front. Without a working rear wiper, your rear visibility drops fast. This matters especially when you are backing up, changing lanes, or navigating tight trails.
Jeep Wrangler models come in two main generations that people talk about: the JK (produced from 2007 to 2018) and the JL (produced from 2018 onward). Both models include a rear windshield wiper as standard equipment. However, the way you activate it differs slightly between the two. Understanding your specific model is the first step to using the wiper effectively.
The rear wiper system on a Jeep Wrangler consists of a few key parts. You have the wiper motor, the wiper arm, the wiper blade, and the control switch. When any one of these parts fails, the whole system stops working. That is why basic maintenance and knowing how the system works matters. It also helps to understand how windshield wiper settings function on your vehicle before you need them in a storm.
Most Jeep Wrangler owners use the rear wiper during off-road adventures. Mud, dirt, and water spray up from the tires and coat the rear glass. Without the wiper, you are essentially driving blind in the rearview mirror. The wiper solves this problem quickly. But many owners do not know exactly how to turn it on or adjust its settings.
If you are new to the Jeep Wrangler or just have not used the rear wiper before, do not worry. This guide covers everything you need to know. From finding the switch to fixing common problems, you will find all the answers here. Let us get into the details.
How to Turn On the Rear Windshield Wiper on a Jeep Wrangler
Locating the Wiper Control on Your Jeep Wrangler
The first thing you need to do is find the rear wiper control. On most Jeep Wrangler JK models, the rear wiper is controlled by a separate switch located on the left side of the steering column. This switch is small and sometimes gets overlooked because it sits close to the headlight switch. Look for a button or toggle labeled with a wiper icon.
On the Jeep Wrangler JL, the controls work a bit differently. The JL uses a more modern interface with a rotary dial for the front wipers. The rear wiper function is often integrated into the same control stalk or accessible through the infotainment screen on certain trims. Check your owner’s manual if you are unsure where the control is located on your specific trim level.
Here are the common locations for the rear wiper switch across different Jeep Wrangler models:
- JK Models: Look for a small toggle or button on the left side of the steering column, near the headlight switch.
- JL Models: The rear wiper may be on the turn signal stalk or accessible through the Uconnect touchscreen depending on the trim.
- Rubicon and Unlimited Models: These trims follow the same control layout as their respective JK or JL counterparts.
Once you locate the switch, you are ready to move on to the next step. The good news is that the operation is straightforward. You do not need any special tools or mechanical knowledge. Just a few simple actions and your rear wiper will be up and running.
Step-by-Step Instructions to Activate the Rear Wiper
Follow these steps to turn on the rear windshield wiper on your Jeep Wrangler. These instructions work for both JK and JL models with minor variations.
- Start the vehicle. Turn the ignition to the “On” position or press the start button. The wiper system will not operate when the vehicle is completely off.
- Locate the rear wiper switch. Find the switch on the left side of the steering column (JK) or on the turn signal stalk (JL).
- Press or toggle the switch to the “On” position. You should see the wiper arm start moving across the rear windshield.
- Select the wiper speed. Most Jeep Wranglers offer multiple speeds. Choose low speed for light rain or high speed for heavy downpours.
- Use the intermittent setting if needed. This mode is great for light drizzle or misty conditions. It pauses between wipes to save energy and reduce noise.
- Turn the wiper off when done. Switch the control back to the “Off” position to stop the wiper. This prevents unnecessary wear on the motor and blade.
That is all there is to it. The process is quick and easy. Once you have done it a few times, it becomes second nature. You will not even have to think about where the switch is.
Quick Tips for Using the Rear Wiper Effectively
- Use the intermittent setting during light rain to avoid wearing out the wiper blade prematurely.
- Clean the rear windshield before using the wiper if it is covered in heavy mud or dirt. This prevents the blade from grinding debris into the glass.
- Turn off the wiper before turning off the engine. This ensures the blade parks in the correct position and does not get stuck against the glass.
- Use washer fluid along with the wiper for better cleaning results. The rear window washer reservoir is usually located near the front washer tank.
Rear Wiper Controls Across Different Jeep Wrangler Models
Not all Jeep Wranglers are the same. The control layout changes depending on the model year and trim level. Understanding these differences helps you avoid confusion the first time you get behind the wheel of a different Wrangler.
Jeep Wrangler JK (2007-2018)
The JK generation is one of the most popular Wrangler models ever made. On the JK, the rear wiper is controlled by a dedicated switch on the left side of the steering column. This switch typically has three positions: Off, Low Speed, and High Speed. Some JK models also include an intermittent setting, which you can access by pushing the switch to the middle position.
The JK rear wiper motor is relatively powerful. It can handle heavy rain and off-road mud with ease. However, the switch itself can wear out over time, especially if you use the wiper frequently. If you notice the wiper not responding when you flip the switch, the switch itself might be the problem rather than the motor.
Jeep Wrangler JL (2018-Present)
The JL Wrangler brought a more modern interior design. The wiper controls are more integrated into the vehicle’s electronic systems. On the JL, the rear wiper function is often built into the turn signal stalk or controlled through the Uconnect infotainment system.
Some JL trims allow you to adjust the rear wiper sensitivity and timing through the vehicle settings menu. This is a nice feature that the JK did not have. If you own a JL, take a few minutes to explore the infotainment settings. You might find useful customization options for your wiper control stalk that you did not know existed.
| Feature | JK (2007-2018) | JL (2018-Present) |
|---|---|---|
| Rear Wiper Switch Location | Left side of steering column | Turn signal stalk or Uconnect screen |
| Speed Settings | Low, High, Intermittent | Low, High, Intermittent (adjustable) |
| Rear Washer | Separate reservoir | Shared or separate reservoir depending on trim |
| Wiper Motor Power | Standard 12V DC motor | Standard 12V DC motor |
Common Problems with the Jeep Wrangler Rear Windshield Wiper
Even though the rear wiper system is simple, things can go wrong. Understanding common problems helps you troubleshoot quickly and get back on the road safely.
Wiper Not Turning On
If the rear wiper does not turn on at all, the first thing to check is the fuse. The rear wiper shares a fuse with the rear window defroster on most Jeep Wrangler models. Open your fuse box and look for the relevant fuse. If it is blown, replace it with a new one of the same amperage. This is the most common cause of a non-functioning rear wiper.
If the fuse is fine, the next thing to check is the switch. Over time, the switch can corrode or wear out, especially if you drive in wet or muddy conditions frequently. A faulty switch will not send the electrical signal needed to activate the motor.
Wiper Moves Slowly or Jerkily
A slow or jerky wiper movement usually points to a weak motor or a mechanical issue. The wiper arm might be binding against the glass. This can happen if the wiper blade is warped or if there is debris stuck in the mechanism.
Try lifting the wiper arm away from the glass and cleaning the blade and arm. If the movement improves, the problem was debris. If it does not, the motor might need replacement. Motors are not expensive, and the swap is manageable for most DIYers.
Wiper Leaves Streaks
Streaks on the rear windshield are usually caused by a worn wiper blade. Over time, the rubber on the blade hardens and cracks. When this happens, the blade cannot maintain proper contact with the glass. The result is streaks and smears that reduce visibility.
Replacing the rear wiper blade is easy and affordable. You can find replacement blades at most auto parts stores. If you are not sure which size to buy, check your owner’s manual or measure the existing blade. For those wondering about wiper blade replacement and whether you need special tools, the answer is usually no. Most rear wiper blades simply lift off and snap back on.
Wiper Makes Grinding Noise
A grinding noise when the wiper operates is a bad sign. It usually means the wiper arm is not moving smoothly on the pivot point, or the blade is hitting something hard on the glass. Check for ice, debris, or a bent wiper arm.
If the noise persists after clearing debris, the motor gearbox might be worn. This is a less common issue but still worth checking. A grinding wiper can damage the rear windshield glass if left unaddressed. Fix it as soon as you notice the problem.
Maintenance Tips for Your Jeep Wrangler Wiper System
Keeping your rear windshield wiper in good shape is not hard. A little regular maintenance goes a long way toward extending the life of the system and ensuring clear visibility when you need it most.
Clean the Wiper Blade Regularly
Dirt, salt, and tree sap build up on wiper blades over time. This buildup causes the blade to skip and streak. Wipe the blade with a damp cloth and a small amount of vinegar once a month. This simple habit keeps the blade performing at its best.
Check the Wiper Fluid Level
Your Jeep Wrangler has a separate reservoir for the rear window washer fluid. Check this fluid level regularly, especially before long trips or off-road adventures. Topping off the fluid is easy and ensures you can clean the rear glass on the go.
If you find yourself needing to refill often, you might have a leak in the hose or nozzle. Inspect the rear washer nozzle for clogs and clear them with a pin or compressed air. Keeping the system clean prevents spray issues.
Replace the Wiper Blade on Schedule
Most experts recommend replacing wiper blades every six to twelve months. The rear wiper blade is no exception. Even if the blade looks okay, the rubber degrades over time and loses its effectiveness. Replacing it on a schedule prevents surprise failures when you are caught in a downpour.
If you are wondering whether you need a special tool to change your wiper blades, you do not. Most rear wiper blades on the Jeep Wrangler use a simple hook-style attachment that you can swap by hand. For more details on this process, check out our guide on whether you need a tool to change windshield wipers. It covers the basics and helps you pick the right replacement blade.
Protect the Wiper System During Off-Road Trips
Jeep Wranglers are built for off-roading. But mud, rocks, and water can take a toll on the wiper system. After a tough trail, clean the wiper arm and blade to remove caked-on mud. Check that the wiper arm spring tension is still strong. A weak spring causes the blade to lift off the glass unevenly, leading to poor wiping performance.
Also, consider using a wiper cover or parking the vehicle with the blades lifted off the glass during extended storage. This prevents the rubber from sticking to the glass in hot weather and reduces the risk of the blade tearing when you next use it.
When to Replace Your Rear Wiper Blade
Knowing when to replace your rear wiper blade saves you from poor visibility and potential glass damage. Here are the clear signs that it is time for a new blade:
- Visible streaks or smears on the rear glass after each wipe.
- Chattering or skipping across the windshield surface.
- Cracked or torn rubber visible on the blade edge.
- Reduced wiping coverage where parts of the glass are left untouched.
- Noise during operation such as squeaking or grinding.
- Blade is more than 12 months old regardless of visible wear.
Replacing the blade is a quick job that takes just a few minutes. You do not need to visit a mechanic. Just buy the correct replacement blade, lift the old blade off the arm, and click the new one into place. For more information on blade sizing and compatibility, you can read our article on whether you can go up a size in windshield wipers. This guide helps you understand sizing options and ensures you get the right fit for your Jeep Wrangler.
Using the correct blade size matters. A blade that is too long or too short will not wipe the glass properly. This leads to missed spots and reduced visibility. Always refer to your owner’s manual for the recommended blade size for your specific Jeep Wrangler model and year.
Conclusion
Knowing how to turn on the rear windshield wiper on a Jeep Wrangler is an essential skill for every Wrangler owner. Whether you drive a JK or an JL, the process is straightforward once you locate the right control. The rear wiper keeps your back window clear during rain, snow, and off-road adventures. It is a small feature that makes a big difference in safety and visibility.
Regular maintenance keeps the system working reliably for years. Clean the blade, check the fluid, and replace the blade on schedule. When problems arise, start with the fuse and work your way through the switch and motor. Most issues are easy to fix and do not require expensive repairs.
Take a few minutes today to familiarize yourself with your rear wiper controls. You will be glad you did the next time a sudden rainstorm hits or you are navigating a muddy trail. Stay safe, stay prepared, and enjoy every drive in your Jeep Wrangler.
Frequently Asked Questions
Can I drive my Jeep Wrangler without the rear wiper working?
Yes, you can still drive the vehicle. However, the rear wiper is an important safety feature, especially in rain or off-road conditions. Without it, your rear visibility is reduced. It is best to fix the issue as soon as possible to maintain full visibility and safety.
Why does my Jeep Wrangler rear wiper only work on intermittent mode?
This usually indicates a problem with the wiper switch or the motor’s speed settings. The switch may be worn out and only sending a partial signal. Check the fuse first, and if that is fine, the switch or motor may need replacement.
How much does it cost to replace a Jeep Wrangler rear wiper blade?
Rear wiper blades for a Jeep Wrangler typically cost between $10 and $25. The replacement process is simple and can be done at home without any special tools. If you prefer a mechanic, labor costs are minimal since the job takes only a few minutes.
Can I use the rear wiper when the vehicle is parked?
No, the rear wiper on a Jeep Wrangler only operates when the vehicle is running. This is a standard safety and electrical design feature. Always start the engine before activating the wiper system.
Does the rear wiper use a lot of battery power?
No, the rear wiper uses very little battery power. It draws a small amount of current compared to other vehicle systems. Even with regular use, the impact on your battery is negligible. You can use it freely without worrying about draining the battery.
Is the rear wiper the same as the rear defroster on a Jeep Wrangler?
No, they are two separate systems. The rear wiper clears water and debris from the glass, while the rear defroster uses heating elements to melt frost and fog. Both systems work together to improve rear visibility in different weather conditions. Check the fuse box if either system stops working, as they often share a common fuse.
