If you’re new to working on cars, even a simple task like opening the fuse box on your 2018 Jeep Compass might feel confusing. Many owners check their fuses when something electrical stops working—like the radio, headlights, or power windows. This guide walks you through every step, so you can safely and quickly access your fuse box without damaging anything.
Understanding Your 2018 Jeep Compass Fuse Box
Your Jeep Compass has two fuse boxes. One sits in the engine compartment, and the other is inside the cabin. Each box protects different electrical parts. The under-hood box controls most engine and high-power systems, while the cabin box covers items like interior lights and the radio.
Some people confuse the fuse box with the battery cover or the relay box. Make sure you look for the black plastic cover labeled “FUSE” or “FUSE BOX.” Jeep sometimes calls it the Power Distribution Center in the manual.
Tools And Preparation
You usually won’t need any tools to open the fuse box. However, it’s smart to have:
- A flashlight (for low light)
- Gloves (to keep your hands clean)
- The owner’s manual (for fuse diagrams)
Before you start, turn off your Jeep and remove the key. This keeps you safe from accidental shocks or short circuits.
Locating The Fuse Boxes
Under-hood Fuse Box
Open your Jeep’s hood by pulling the release lever under the dashboard, then lifting the hood and securing it with the prop rod. Look at the area near the battery, on the driver’s side. You’ll see a black box with clips on the sides.
Cabin Fuse Box
This box is harder to spot. It’s behind the glove compartment or under the dashboard on the passenger side. You may need to open or remove the glove box for easier access.
Step-by-step: Opening The Under-hood Fuse Box
- Locate the box near the battery.
- Find the two plastic clips on either side of the box’s cover.
- Press the clips inwards with your fingers.
- While pressing, gently lift the cover. It should pop off easily. If it doesn’t, double-check that both clips are fully pressed.
- Set the cover aside in a safe place.
Important Tips
- Don’t use metal tools to pry open the box; you might crack the cover.
- If the cover feels stuck, wiggle it gently—never force it.
Opening The Cabin Fuse Box
- Open the passenger door and lower the glove compartment.
- In some models, pinch the sides of the glove box inward to fully drop it down.
- Look for a small black panel, often with a “fuse” symbol.
- Pull the panel or cover out using your fingers.
- Store the cover nearby.
Opening the inside fuse box can be awkward, especially if you have large hands. Using a flashlight helps you see the panel and the fuses better.
What To Do Once The Cover Is Off
Now you’ll see rows of colored fuses and possibly some relays. Under the fuse box cover or in your manual, you’ll find a chart showing what each fuse does.
- Identify the problem fuse by matching the circuit name (for example, “A/C” or “Radio”).
- Most Jeep Compass models include a fuse puller tool inside the box. Use this to remove fuses safely.
Never swap a blown fuse for a higher-amp fuse. This could damage your Jeep’s wiring or even cause a fire.
Common Mistakes And How To Avoid Them
Many beginners:
- Forget to turn off the car before opening the box. This is risky.
- Lose the fuse box cover. Always place it somewhere visible.
- Mix up fuse locations. Take a photo before removing any fuses so you can replace them correctly.
- Ignore the manual. The owner’s manual has the exact fuse layout for your Compass.
Another tip: Don’t touch any exposed wires. Fuses are safe to handle, but wires can carry current.
Fuse Box Cover Reinstallation
After you check or replace your fuses:
- Align the cover tabs with the slots on the box.
- Press the cover down until you hear it click.
- Make sure it’s secure. A loose cover can let water or dirt inside.
Quick Data Comparison
Here are some differences between the two fuse boxes:
| Feature | Under-Hood Fuse Box | Cabin Fuse Box |
|---|---|---|
| Main Location | Engine bay, left side | Behind glove box/passenger footwell |
| Controls | Engine, headlights, A/C, horn | Radio, interior lights, windows |
| Ease of Access | Easy | Moderate |
When To Check Your Fuse Box
Check your fuses if:
- Electrical parts suddenly stop working
- You see warning lights on your dashboard
- New accessories (like a dashcam) stop working
If changing a fuse doesn’t fix the problem, the issue could be with the wiring or the device itself.
Safety Reminders
- Always use the correct fuse rating. For example, if the circuit uses a 15-amp fuse, only replace it with another 15-amp fuse.
- Keep the fuse box dry. Moisture can cause corrosion or electrical shorts.
- Don’t leave the cover off for long periods. Dust can affect the fuses.
Real-world Example
A Jeep Compass owner noticed his rear wiper stopped working. After finding and opening the cabin fuse box, he discovered a blown 10-amp fuse. Replacing it restored the wiper function instantly. These simple fixes can save you a trip to the mechanic.
Comparison: Fuse Types In The 2018 Compass
| Fuse Type | Color | Common Use |
|---|---|---|
| Mini Blade | Various | Interior electronics |
| Regular Blade | Various | Major systems |
| Relay | Black/gray | High-current devices |
Frequently Asked Questions
How Do I Know Which Fuse Is Blown?
Look for a broken wire inside the fuse or a blackened appearance. The owner’s manual or the diagram under the cover helps you find the correct fuse.
Can I Use Any Fuse To Replace A Blown One?
No. Always use a fuse with the same amp rating as the original. Using the wrong fuse can damage your car.
Where Can I Find A Fuse Diagram For My Jeep Compass?
The diagram is on the fuse box cover and in your owner’s manual. You can also check the official Jeep website.
What Should I Do If The New Fuse Blows Immediately?
This means there’s a bigger electrical problem. Do not keep replacing fuses—get your Compass checked by a professional.
Is It Safe To Open The Fuse Box Myself?
Yes, as long as the car is turned off and you follow basic safety steps. Avoid touching bare wires.
Opening the fuse box on your 2018 Jeep Compass is straightforward with a bit of care. Always keep your manual nearby, and don’t rush the process. This small skill can help you fix common electrical issues and keep your Jeep running smoothly.
