Getting ready to fuel your 2022 Jeep Grand Cherokee can feel confusing if you don’t know where to start. Many new car owners worry about damaging their vehicle or making mistakes, especially with modern designs. Luckily, opening the gas tank on this SUV is a simple process—once you know the steps.
This guide will walk you through every detail, highlight common mistakes, and share helpful tips so you can fill your tank with confidence.
Finding The Gas Tank Location
The gas tank access is on the driver’s side of the 2022 Jeep Grand Cherokee. Look just behind the rear door, above the wheel arch. Many drivers assume it’s on the passenger side, but Jeep follows the standard US design. If you’re parking at a gas station, always position the driver’s side closest to the pump.

Step-by-step: Opening The Gas Tank
Opening the gas tank on your Grand Cherokee is designed to be easy, but some features can be confusing. Here’s how to do it safely:
1. Unlock The Vehicle
Ensure your Jeep is unlocked. The fuel door will not open if the car is locked. Use your key fob or the manual lock button.
2. Locate The Fuel Door
Find the fuel door on the driver’s side. It’s a small, square door above the rear tire.
3. Press To Open
Gently press the rear edge of the fuel door. It should pop open. There’s no release lever inside the cabin—this is a “push-to-open” design.
4. Unscrew The Gas Cap
Twist the gas cap counterclockwise. Place it in the holder on the inside of the fuel door so it doesn’t fall.
5. Refuel
Insert the fuel nozzle and fill your tank. The 2022 Grand Cherokee usually takes regular unleaded gasoline. Check your manual for fuel recommendations.
6. Replace The Gas Cap
After refueling, screw the cap clockwise until you hear a click. This ensures a tight seal.
7. Close The Fuel Door
Push the fuel door gently until it snaps shut. It should align flush with the body.

Comparing Jeep Grand Cherokee Gas Tank Features
The 2022 model has some new features compared to previous years. Here’s a quick comparison:
| Feature | 2022 Model | 2021 Model |
|---|---|---|
| Fuel Door Release | Push-to-open | Push-to-open |
| Gas Cap Type | Screw cap | Screw cap |
| Fuel Recommendation | Regular Unleaded | Regular Unleaded |
| Tank Size (gal) | 23 | 24.6 |
One non-obvious insight: The tank size is slightly smaller in 2022, but fuel efficiency has improved. This means you can travel similar distances with less fuel.
What To Do If The Fuel Door Won’t Open
Sometimes, the fuel door won’t pop open. Here’s what you can check:
- Is the vehicle locked? Unlock it first.
- Frozen door? In cold climates, ice can stick the door. Gently tap or use a de-icer spray.
- Mechanical jam? If pressing doesn’t work, check for debris or dirt around the hinge.
If the door still won’t open, you may need help from a mechanic. Avoid prying the door open, as this can damage the paint and hinge.
Common Mistakes When Opening The Gas Tank
Many drivers make small errors that can lead to bigger problems. Here are the most frequent ones:
- Forgetting to unlock the vehicle before trying to open the fuel door.
- Over-tightening the gas cap—this can damage the threads.
- Leaving the gas cap loose—this triggers a warning light.
- Using the wrong fuel type—always check the owner’s manual.
- Pulling instead of pressing the fuel door—this can break the hinge.
A practical tip: If you get a “check engine” light after refueling, it’s often because the gas cap isn’t tight. Re-seal the cap and drive for a few miles; the warning may clear.
Gas Tank Security Features
The 2022 Jeep Grand Cherokee has some security features for its gas tank:
- Locking fuel door: The door stays locked when the vehicle is locked.
- Anti-siphon design: Prevents fuel theft by blocking access to the tank.
These features make it harder for thieves to steal fuel or tamper with your gas cap.

Recommended Fuel Types
Jeep recommends regular unleaded gasoline for most 2022 Grand Cherokees. Some high-performance trims may suggest premium. Using the wrong fuel can reduce performance and cause engine problems.
Here’s a comparison of fuel types:
| Fuel Type | Octane Rating | Recommended For | Effect on Engine |
|---|---|---|---|
| Regular Unleaded | 87 | Standard models | Normal performance |
| Premium Unleaded | 91+ | Performance trims | Improved power |
Practical Tips For Easy Refueling
- Always check that your Jeep is unlocked before approaching the gas station.
- Keep the fuel door area clean to prevent jams.
- Don’t wait until the tank is empty; refuel when you reach a quarter tank.
- Avoid using foreign objects to open the fuel door if it’s stuck.
One insight many miss: The fuel door is designed to be child-safe. It won’t open if the vehicle is locked, preventing accidents with kids.

Frequently Asked Questions
How Do I Unlock The Fuel Door On My 2022 Jeep Grand Cherokee?
The fuel door unlocks automatically when you unlock your vehicle using the key fob or door button. There’s no separate fuel door release inside the cabin.
What Should I Do If The Gas Cap Warning Light Comes On?
First, check that the gas cap is tightly sealed. Remove it, reseal, and drive a few miles. If the warning stays, visit your dealer for a check.
Can I Use E85 Or Diesel In My Grand Cherokee?
No. The 2022 Grand Cherokee is designed for gasoline only. Using E85 or diesel can damage the engine and void the warranty.
Is There A Manual Fuel Door Release?
There is no manual release lever in the cabin. The fuel door is operated by pushing on the rear edge. If it fails, service may be needed.
What Is The Gas Tank Capacity Of The 2022 Grand Cherokee?
The 2022 model has a 23-gallon gas tank, slightly less than previous years. This offers a range of about 400 miles per fill, depending on driving habits.
Opening the gas tank on your 2022 Jeep Grand Cherokee is simple once you know the steps. With its push-to-open design, built-in security, and clear refueling process, you can avoid mistakes and keep your SUV running smoothly. If you need more details, the official Jeep owner’s manual or trusted sources like Jeep.com offer extra guidance. Now you’re ready to fill up and hit the road with confidence.



