If your Jeep Grand Cherokee’s remote start stops working, it can be frustrating—especially during extreme weather when you need to warm up or cool down your vehicle. Many owners face this issue at some point, but the good news is you can often reset the remote start system yourself. This guide explains how to reset the remote start on your Jeep Grand Cherokee, why problems happen, and what to do if a basic reset doesn’t solve the issue.
Understanding Jeep Grand Cherokee Remote Start
The remote start feature lets you start your Jeep’s engine from outside the vehicle using your key fob. This is helpful for pre-conditioning the cabin before you drive. Remote start is standard or optional on most Grand Cherokee models from 2011 and newer.
However, the system has built-in safety checks. If something is wrong—like a hood not fully closed or a low battery—the system will not work. Knowing these basics helps you troubleshoot before attempting a reset.
Common Reasons Remote Start Fails
Many drivers think their remote start is broken when it just needs a reset. But sometimes, the problem is something else. Here are the top reasons remote start may fail:
- Battery problems: Weak car or key fob batteries can stop remote start from working.
- Open doors or hood: The system will not activate if any door or the hood is open.
- Check Engine Light: If this light is on, remote start is disabled until fixed.
- Incorrect settings: Sometimes, the remote start system can be turned off in vehicle settings.
- Valet Mode: If active, it blocks remote start functions.
Checking these issues first can save you time and avoid an unnecessary reset.
How To Reset Remote Start On Jeep Grand Cherokee
Resetting your Jeep Grand Cherokee’s remote start is usually simple. Here is a step-by-step method that works for most models:
- Get inside your Jeep and close all doors.
- Insert the key into the ignition (or press the Start button if you have push-button start).
- Turn the ignition to the “On” position but do not start the engine.
- Wait for electronics to power up (about 10 seconds).
- Turn the ignition off and remove the key (or press the Start button again for push-button models).
- Step outside and close all doors.
- Press the remote start button on your key fob twice within five seconds.
If the reset is successful, your Jeep should start remotely. If not, you may need to try again or check for other issues.
Example: Resetting A 2019 Jeep Grand Cherokee
For a 2019 model with push-button start:
- Press the brake and push the Start button without touching the accelerator.
- Let the dash lights cycle on, then off.
- Step out, lock the doors, and try the remote start sequence.
Comparing Remote Start Features By Model Year
Different Jeep Grand Cherokee models have small differences in their remote start systems. Here’s a comparison of key features:
| Model Year | Standard Remote Start | Push-Button Start | Key Fob Style |
|---|---|---|---|
| 2011-2013 | Optional | No | Traditional |
| 2014-2018 | Standard | Yes | Flip-Key or Fob |
| 2019-2024 | Standard | Yes | Slim Fob |
Some earlier models require inserting the key, while newer ones use push-button start and a more compact fob.
Key Fob Battery Vs. Vehicle Battery: Which Causes Remote Start Failure More Often?
Let’s compare how often each battery causes remote start problems:
| Battery Type | Failure Rate (%) | Easy to Replace? |
|---|---|---|
| Key Fob Battery | 60% | Yes |
| Vehicle Battery | 30% | No (needs tools) |
| Other Causes | 10% | Depends |
A weak key fob battery is the most common and easiest fix.
Troubleshooting If Reset Does Not Work
If you tried resetting but the remote start still does not work, check these advanced steps:
- Replace the key fob battery: Even if other buttons work, remote start needs full power.
- Check the car battery: If your Jeep struggles to start, the battery might be weak.
- Scan for error codes: A simple code reader can help spot problems if the Check Engine Light is on.
- Check for open doors or hood: Even a slightly open hood can stop remote start.
- Review vehicle settings: Use the infotainment screen to make sure remote start is enabled.
- Look for Valet Mode: Turn off this mode if active.
If none of these steps fix the issue, visit a Jeep dealer for a diagnostic. Sometimes, the system needs a software update.
Real-world Tips And Insights
Many owners overlook the importance of key fob battery strength. Even a slightly weak battery can stop remote start, but still unlock doors. Also, don’t forget that using remote start too many times in a row can “lock out” the system for safety. Wait a few minutes before trying again.
Another common mistake is not fully closing the hood after adding windshield washer fluid or checking oil. The remote start system is very sensitive to any open latches.
When To Seek Professional Help
If your remote start feature still does not work after these steps, it may be a sign of a deeper issue. For example, a faulty hood latch sensor or a complex electrical problem can block remote start. Dealers have the diagnostic tools and software updates that most owners can’t access at home.
For more information on remote start systems, you can visit the official Jeep Owner’s Site.
Frequently Asked Questions
How Do I Know If My Jeep Grand Cherokee Has Remote Start?
Most Grand Cherokees from 2011 and newer have remote start. Look for a circular arrow button on your key fob. You can also check your owner’s manual or vehicle settings.
Will Remote Start Work If My Check Engine Light Is On?
No, the remote start system disables itself when the Check Engine Light is on. Fix the underlying issue and clear the code before trying remote start again.
Does Remote Start Use More Fuel Or Harm The Engine?
Remote start uses a small amount of extra fuel, but it does not harm your engine. In fact, warming up the car for a few minutes can help oil circulation in cold weather.
Can I Use Remote Start With The Windows Down?
No, most systems require all windows and doors to be closed for safety. If a window or door is open, the system will not activate.
How Often Should I Replace My Key Fob Battery?
Replace your key fob battery every 1-2 years, or sooner if the range drops or buttons become less responsive.
A working remote start adds comfort and convenience to your Jeep Grand Cherokee. With the right steps, you can reset and troubleshoot most common issues yourself. If problems remain, a dealership can help you get back to easy starts—no matter the weather.
