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Your Jeep Cherokee push button start fails. You press the button. Nothing happens. Your car won’t start.
This is frustrating. But most of the time, it’s not a big repair.
I’ve fixed hundreds of push button start problems in my shop. The good news? About 80% are simple fixes you can handle yourself.
In this guide, I’ll walk you through exactly what to check first. Then I’ll explain what a mechanic needs to do if it’s something bigger.
By the end, you’ll know whether this is a $5 fix or if your Jeep needs professional help.
How Push Button Start Works
Before we fix anything, you need to understand how it actually works.
When you press the push button start, here’s what happens inside your Cherokee:
Step 1: The key fob sends a wireless signal to your vehicle.
Step 2: Your Jeep’s computer receives that signal and checks if the key fob code matches.
Step 3: The computer looks for your brake pedal. You must have your foot on the brake.
Step 4: If everything checks out, the computer tells the starter motor to spin.
Step 5: Your engine starts.
If any one of these steps breaks, your push button won’t work.
That’s the key to fixing this. You have to figure out which step is failing.
Quick Fixes to Try First
Check the Obvious Things
Before you worry, try these simple steps. Most of the time, one of these works.
Is your foot on the brake pedal?
This is real. I’m not joking. Your Jeep will not start if you’re not pressing the brake. You have to press it firmly. Some owners forget this or think they’re pressing it hard enough when they’re not.
Try again. Press the brake pedal all the way down. Then press the start button.
Is the steering wheel locked?
If you turned the wheel all the way and the steering is now locked, your Jeep won’t start. This is a safety feature.
Turn the steering wheel left and right gently while pressing the start button.
Is the key fob in the car with you?
Your Jeep needs to sense the key fob inside the vehicle. If you left it on the kitchen counter, the push button won’t work.
The key fob does not have to be in the ignition. It just needs to be inside the car.
Try the physical key.
Most push button start Jeep Cherokees have a hidden physical key inside the key fob.
Slide off the rubber cover on the back of your fob. Inside, you’ll find a small metal key.
Use this key to open your driver’s door and unlock the steering column. Then try turning the key in the ignition to start the engine.
If the car starts with the physical key, the problem is in your electronic push button system, not the engine.
Battery Issues
Your Car’s Battery Is Dead
This is the number one reason push button start fails.
A dead battery stops everything—the computer, the key fob receiver, all of it.
Signs your car battery is dead:
- The dashboard lights don’t turn on
- The interior lights are off
- You hear no clicking sound when you press the start button
- All your electronics are dead
What to do:
Jump-start your Jeep. Use jumper cables and another car. Or call for roadside assistance.
Once it starts, drive it to an auto parts store and have them test the battery for free. Most shops will do this.
A car battery usually lasts 3 to 5 years. If yours is older, it’s probably time to replace it.
A new battery costs $100 to $200. It’s not expensive.
Your Battery Terminals Are Corroded
Even if your battery has charge, corroded terminals can prevent the push button from working.
What to look for:
Open your hood. Look at the two metal connections on top of your battery. If you see blue, white, or green crusty stuff, that’s corrosion.
How to fix it:
Turn off the engine. Disconnect the negative (black) cable first. Then disconnect the positive (red) cable.
Mix baking soda with water. Scrub the corroded terminals with an old toothbrush.
Rinse with clean water. Let it dry.
Reconnect the red cable. Then the black cable.
This takes 10 minutes and costs nothing.
Key Fob Problems
Your Key Fob Battery Is Dead
The push button won’t work if your key fob battery is dead.
The key fob sends the signal to your Jeep. No signal, no start.
How to check:
Does your key fob still lock and unlock your doors? If not, the battery is likely dead.
How to replace it:
Most Jeep Cherokee key fobs use a CR2032 or CR2025 battery. You can buy these at any drugstore for $3 to $5.
Slide the fob apart. Pop out the old battery. Drop in the new one.
Close the fob. Done.
This is the fastest, cheapest fix.
Your Key Fob Is Damaged
If you dropped your fob or it got wet, the inside circuits might be broken.
Signs of a damaged fob:
- The buttons are loose or stuck
- Water got inside (you see moisture)
- It’s cracked open
- The battery compartment won’t close
What to do:
You need a new key fob. They cost $150 to $300 from a dealer or online. Some cheaper aftermarket fobs work fine too.
A locksmith can sometimes reprogram a cheap fob to match your Jeep. This is faster and cheaper than going to a dealer.
Your Key Fob Isn’t Programmed Correctly
If your key fob was recently replaced or reprogrammed, the code might not match your Jeep anymore.
Your Jeep’s computer and the key fob have to “talk” to each other. If they’re not paired, the push button won’t work.
What to do:
You need to reprogram the key fob. Most Jeep Cherokees can do this by:
- Sitting in the driver’s seat with all doors closed
- Inserting your key in the ignition
- Turning the key to the “On” position (not starting)
- Turning it back to “Off”
- Repeating this process several times quickly
Your Jeep’s lights will blink when it’s ready to program. Press any button on the fob to sync it.
If this doesn’t work, take it to a dealer or locksmith. They have computers to reprogram it correctly.
Brake Pedal Switch
What Is the Brake Pedal Switch?
Your Jeep has a small switch under the brake pedal. When you press the brake, this switch sends a signal saying “the driver is ready to start.”
No brake signal, no start button.
This is a safety feature. It prevents accidental starting.
The Switch Is Broken
If your brake pedal switch fails, the push button won’t work even if everything else is fine.
Signs the switch is broken:
- Your brake lights don’t work
- You press the brake but the start button does nothing
- The physical key starts the engine just fine
How to check:
Sit in the driver’s seat. Press the brake pedal. Look at your brake lights in a mirror or have someone stand behind the car.
Do they light up? If not, the brake pedal switch is likely bad.
What to do:
A brake pedal switch costs $50 to $150 to replace. A mechanic can do it in 30 minutes.
You can’t start the engine without it, so this needs fixing soon.
Electrical and Wiring Problems
Corroded Wiring Connections
Under your Jeep’s dashboard and in the engine bay, there are electrical connections. If these corrode or loosen, signals can’t travel.
Where to check:
This is not a DIY fix unless you’re comfortable with basic electrical work.
A mechanic needs to trace the wiring from the push button to the starter motor. They’ll check each connection for corrosion or loose wires.
Cost: Usually $100 to $300 in labor.
Faulty Push Button Switch
The button itself can go bad.
If you press it and nothing happens—no clicking, no lights flickering, no response at all—the switch might be broken.
What to do:
A mechanic will test the button with a multimeter. If it’s not sending a signal, it needs replacement.
A new push button switch costs $100 to $250, plus labor.
Computer or Control Module Issues
Your Jeep’s computer controls the entire push button start system.
If the computer module fails, nothing will work—even if the battery, key fob, and brake switch are fine.
Signs of computer problems:
- Multiple systems stop working at once
- Dashboard lights flicker
- The physical key won’t even start the engine
- Error codes appear on a diagnostic scan
What to do:
Only a dealer or advanced mechanic can diagnose computer problems. They use specialized equipment.
This is the most expensive fix, sometimes $500 to $1,500.
When to See a Mechanic
You should take your Jeep to a professional if:
- You’ve tried all the quick fixes and nothing worked
- Your battery is dead but won’t recharge
- The physical key won’t start the engine either
- Your dashboard lights are completely off
- You see warning lights or error codes
Where to go:
A Jeep dealership will charge more but they know Jeep systems. An independent shop is usually cheaper but make sure they’re certified.
Always call ahead and describe the problem. Some shops will give you an estimate over the phone.
Common Mistakes Owners Make
Mistake 1: Assuming the Engine Is Broken
Owners panic. They think their engine died.
Nine times out of ten, it’s just the push button system. The engine is fine.
Test it with the physical key first. If the key works, the engine is healthy.
Mistake 2: Not Checking the Battery First
Owners jump to expensive diagnoses before checking the battery.
Always start here. A dead or weak battery breaks everything.
Mistake 3: Replacing the Wrong Part
Owners buy a new key fob when the real problem is the brake pedal switch.
Before you buy anything, use a mechanic’s diagnostic scan to see what’s actually wrong.
Mistake 4: Ignoring Corrosion
A little bit of corrosion on battery terminals looks harmless. It’s not.
Clean it off immediately. It only gets worse.
Mistake 5: Forcing the Push Button
Pushing the button harder or multiple times won’t help. It might damage the switch.
Press it once, firm and calm. Then wait.
FAQ
Q: Can I start my Jeep Cherokee with the physical key if the push button fails?
A: Yes. Most Jeep Cherokees have a physical key hidden inside the key fob. You can use it to unlock the steering column and turn the ignition normally. The engine will start the same way older cars do.
Q: How much does a key fob battery cost?
A: $3 to $5 at any drugstore or grocery store. It’s the cheapest fix you’ll encounter.
Q: Will jump-starting my Jeep fix the push button problem?
A: Only if the battery was dead. Once the battery has power, all your electronics come back to life, including the push button system. If the push button still doesn’t work after a jump, the problem is something else.
Q: Can I reprogram my key fob myself?
A: Sometimes, yes. Most Jeep Cherokees allow basic DIY reprogramming by turning the key on and off in the ignition several times. But if that doesn’t work, a locksmith or dealer has to do it with special equipment.
Q: Is a broken push button button expensive to fix?
A: Replacing the push button switch usually costs $100 to $250 in parts and labor combined. It’s not a major repair, but it’s not free either.
Q: What does the brake pedal switch do?
A: It tells your Jeep’s computer that you’re pressing the brake. This is a safety feature. Your car won’t start unless the brake switch says you’re ready. If this switch breaks, you need a mechanic to replace it.
Q: Can a loose steering wheel prevent the push button from working?
A: Yes. If your steering wheel is locked (which happens when you turn it all the way), your Jeep won’t start. Turn the wheel gently left and right while pressing the start button. This usually fixes it.
Q: Do I have to go to a Jeep dealer, or can any mechanic help?
A: Any certified mechanic can fix push button start problems. A dealer will charge more, but they have specific Jeep training. Independent shops are usually cheaper and just as good.
Conclusion
Your Jeep Cherokee push button start not working is usually a simple problem.
Start with the easiest fixes: check the brake pedal, replace the key fob battery, and try the physical key.
If those don’t work, have a mechanic scan your Jeep for error codes. A $100 diagnostic scan will tell you exactly what’s wrong.
Most repairs cost less than $300. The worst-case scenario—a computer module replacement—is rare.
Don’t panic. Don’t replace expensive parts guessing. Get a proper diagnosis first.
If you’re stuck, call a local mechanic or Jeep dealer and describe what’s happening. They can often help over the phone.
Your Jeep will start again soon.