If you drive a Jeep Wrangler made in recent years, you’ve probably noticed the Start Stop system. This feature automatically turns off your engine when you come to a stop, like at a red light, and starts it again when you release the brake. While this can help save fuel, many drivers find it frustrating, especially in heavy traffic or when off-roading. If you’re looking for ways to turn off Start Stop in your Jeep Wrangler, you’re not alone. Let’s explore why this feature exists, how you can disable it, and what you need to know before making any changes.
Why Jeep Uses Start Stop Technology
Automakers like Jeep use Start Stop systems to meet strict fuel economy and emissions standards. By shutting off the engine during idle, the system can reduce fuel use by up to 5-10% in city driving. Over time, this adds up to lower emissions and savings at the pump. However, the system can sometimes feel intrusive, causing the engine to restart frequently or hesitating when you want to accelerate quickly.
Here’s a quick comparison of fuel savings with and without Start Stop:
| Driving Condition | With Start Stop | Without Start Stop |
|---|---|---|
| City Driving | 5-10% fuel savings | Standard consumption |
| Highway Driving | No effect | No effect |
How To Turn Off Start Stop Temporarily
The simplest way to disable Start Stop is by using the off button on your Jeep’s dashboard. Most Wranglers from 2018 and newer have this feature.
- Locate the Start Stop OFF button. It usually has an “A” with a circle and the word “OFF” on it, near the gear shifter or climate controls.
- Press the button each time you start your Jeep. The Start Stop system will stay off for that drive, but will reset when you turn off the ignition.
This solution is quick but only lasts for one trip. If you want to keep Start Stop off permanently, read on.
Making Start Stop Stay Off: Permanent Options
Many drivers want a more lasting solution. Here are the main ways to turn off Start Stop in your Jeep Wrangler for good:
1. Use A Start Stop Eliminator Device
Start Stop eliminators are small plug-in modules that “remember” your last setting. After installing, your Jeep will keep Start Stop off every time you start the engine.
- Installation: Usually plug-and-play. Most go into the OBD-II port under the dash or connect to a harness behind a dash panel.
- Cost: $50–$100 for most devices.
- Warranty: Typically does not void your Jeep’s warranty, but always check with your dealer.
Here’s a comparison of common Start Stop eliminator options:
| Brand | Install Method | Retains Warranty | Price Range |
|---|---|---|---|
| SmartStopStart | Plug into OBD-II | Yes | $80–$100 |
| Autostop Eliminator | Wiring harness | Yes | $85–$110 |
Non-obvious insight: Not all devices work with every Wrangler model year, so check compatibility before buying.
2. Use Manual Override Every Time
If you don’t want to buy extra hardware, you can simply press the Start Stop OFF button each time you drive. While repetitive, it’s 100% safe and free.
3. Disable Via Software (advanced Users Only)
Some owners use third-party scan tools to reprogram the Jeep’s software, turning Start Stop off by default. This method is not recommended unless you’re comfortable with car electronics, as it can void your warranty or cause other issues.
4. Battery Disconnect Trick
Some try to “fool” the system by disconnecting the auxiliary battery that powers Start Stop. However, this can cause error messages and affect other vehicle functions. It’s not a safe or recommended fix.
What To Consider Before Disabling Start Stop
Disabling Start Stop is a personal choice, but consider these factors:
- Fuel savings: You may lose 5–10% efficiency in city driving.
- Emissions: Your Jeep will produce slightly more CO2.
- Resale: Some buyers prefer having Start Stop enabled.
- Warranty: Using a plug-and-play device is usually safe, but software changes or wiring hacks can void coverage.
Practical tip: If you often drive in stop-and-go traffic or tow with your Wrangler, disabling Start Stop can make driving smoother.
Common Myths About Jeep Start Stop
Let’s clear up a few misunderstandings:
- Myth: Start Stop damages the starter motor.
Fact: Modern systems use heavy-duty starters designed for frequent restarts.
- Myth: The system can’t be turned off at all.
Fact: You can turn it off for each trip, and plug-in devices can keep it off.
- Myth: Disabling Start Stop always voids the warranty.
Fact: Plug-in modules are generally safe, but software changes are risky.
Is Disabling Start Stop Right For You?
Turning off Start Stop in your Jeep Wrangler is about comfort and convenience. If the system bothers you, and you’re willing to lose a small amount of fuel savings, it’s a simple change. For many, a plug-in device is the best balance of ease and safety.
Remember to check for compatibility and always follow Jeep’s guidelines.
If you want more technical background, the Wikipedia page on Start Stop systems has in-depth details.
Frequently Asked Questions
How Do I Know If My Jeep Wrangler Has Start Stop?
Most Jeep Wranglers from 2018 and newer include Start Stop. Look for the “A” button on your dashboard or check your owner’s manual.
Will Turning Off Start Stop Damage My Jeep?
No, turning off Start Stop using the dashboard button or a plug-in device will not harm your vehicle. Avoid DIY wiring tricks, as these can cause problems.
Does Disabling Start Stop Void My Warranty?
Using a plug-in eliminator device typically does not void your warranty. However, permanent software or wiring changes may affect coverage. Always confirm with your dealer.
Can I Disable Start Stop Without Any Tools?
Yes, but only for each drive. Press the Start Stop OFF button when you start your Jeep. There’s no built-in way to keep it off permanently without extra hardware.
Why Does My Jeep Wrangler’s Start Stop Not Work Sometimes?
The system may not activate if the battery is low, the engine is cold, or the climate control needs full power. These are normal conditions and not a fault.
Making your Jeep Wrangler fit your driving style is important. If Start Stop isn’t working for you, you have safe options to turn it off and enjoy a smoother ride.
