How To Remote Start A Jeep Easily: Step-by-Step Guide

Can you remote start a Jeep? Yes, many Jeep models come with a factory remote start system, and aftermarket options are widely available for those that don’t. This guide will walk you through the different ways to remote start your Jeep, from using your factory key fob to installing an aftermarket system. We’ll cover everything you need to know to get your Jeep warmed up or cooled down before you even step inside.

How To Remote Start A Jeep
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Deciphering Your Jeep’s Remote Start Options

Jeeps offer several avenues for remote start convenience. You might already have a built-in system, or you could be looking to add one. Let’s explore the possibilities.

Factory Jeep Remote Start

Many newer Jeep models, particularly those equipped with the Convenience Group or similar packages, come with a factory-installed remote start system. This is the most seamless option, integrated directly into your Jeep’s electronics and controlled via your factory key fob.

How to Activate Factory Remote Start:

Locate the Remote Start Button: On your Jeep key fob, look for a button with a circular arrow symbol. This is typically the remote start button.
Press and Release the Lock Button: First, press and release the “lock” button on your key fob to ensure the vehicle is armed.
Press and Hold the Remote Start Button: Immediately after locking the doors, press and hold the remote start button for about 1 to 3 seconds. You should see the parking lights flash, confirming the system has engaged.
System Operation: The engine will start, and the climate control system will engage based on its last setting or programmed preferences. The vehicle will run for a predetermined period (usually 10-15 minutes) before shutting off automatically, or until you unlock and start the Jeep with the key.

Important Notes for Factory Remote Start:

Door Locks: The doors must be locked for remote start to function.
Hood: The hood must be securely closed.
Check Engine Light: If the check engine light is illuminated, the remote start system will not engage.
Parking Brake: The parking brake must be engaged.
Transmission: The transmission must be in Park (P).
Key Proximity: For some systems, the key fob needs to be within a certain range of the vehicle to start.

Aftermarket Jeep Remote Start

If your Jeep doesn’t have a factory remote start, or if you desire more advanced features, an aftermarket remote start system is an excellent solution. These systems offer a wide range of capabilities, from basic start/stop to two-way communication and smartphone integration.

Types of Aftermarket Remote Start Systems:

Key Fob Based: These systems use a dedicated remote fob, similar to your factory fob, to control the remote start function.
Smartphone Controlled: Many modern systems allow you to start, stop, lock, unlock, and even track your Jeep via a smartphone app.
Remote Start Alarms: Some systems integrate remote start with a car alarm for enhanced security.

Considerations for Aftermarket Jeep Remote Start Installation:

Compatibility: Ensure the system is compatible with your specific Jeep model, year, and trim level.
Features: Decide which features are important to you (e.g., range, two-way feedback, smartphone control, integration with existing alarm).
Installation Complexity: Aftermarket remote start installation can range from relatively simple plug-and-play kits to more complex wiring jobs.

DIY Jeep Remote Start Installation: A General Approach

While professional installation is often recommended for complex electronics, a DIY approach to aftermarket Jeep remote start installation can be rewarding and cost-effective for those comfortable with automotive wiring. This section outlines the general steps involved, but always consult the specific installation manual for your chosen remote start system and your Jeep’s wiring diagrams.

Essential Tools and Materials:

Your Chosen Remote Start Kit: This typically includes the main control module, remote fobs, and necessary wiring harnesses.
Wire Strippers and Crimpers: For preparing and connecting wires.
Wire Connectors: Such as butt connectors, T-taps, or soldering supplies.
Electrical Tape or Heat Shrink Tubing: For insulating connections.
Zip Ties: For securing wiring.
Multimeter: To test for voltage and continuity.
Trim Removal Tools: To safely remove interior panels.
Screwdrivers and Socket Set: For accessing components.
Drill (if needed): For mounting certain components.
Installation Manual and Wiring Diagrams: Crucial for correct hookup.

Step-by-Step Installation Overview:

Step 1: Familiarize Yourself with the Kit and Vehicle

Read the Manual: Thoroughly read the installation manual for your specific remote start kit. Understand each wire’s function and intended connection.
Locate Vehicle Components: Identify key components in your Jeep, such as the ignition switch harness, starter solenoid, brake light switch, door lock/unlock wires, and the vehicle’s battery. Consult your Jeep’s service manual or online resources for precise locations.
Disconnect Battery: Crucially, disconnect the negative battery terminal before beginning any electrical work to prevent short circuits and damage.

Step 2: Mount the Main Control Module

Find a suitable, secure location for the remote start control module, typically under the dashboard. Avoid areas where it could be exposed to moisture or extreme heat.
Use zip ties or screws to mount the module securely.

Step 3: Wiring Connections

This is the most critical and complex part of the installation. You’ll be making connections to various circuits in your Jeep. Here’s a breakdown of common connection points:

Power Input: Connect the main power wire (usually red) from the remote start module to a constant 12V power source, typically directly to the battery or a heavy-gauge fuse holder.
Ignition Circuits:
- Accessory (ACC): Connect the module’s ACC wire to the Jeep’s accessory power wire. This powers accessories like the radio and climate control when the key is in the ACC position.
- Ignition 1 (IGN1): Connect the module’s IGN1 wire to the Jeep’s primary ignition wire. This powers essential engine systems when the key is in the ON position.
- Ignition 2 (IGN2) / Starter (ST): Depending on the kit and your Jeep’s configuration, you’ll connect the module’s starter wire to the Jeep’s starter solenoid wire. For some systems, IGN2 might also need to be connected if your Jeep has multiple ignition circuits.
Brake Light Switch: Connect the module’s brake input wire to the Jeep’s brake light switch wire. This is a safety feature that prevents the vehicle from being driven away while remote started.
Door Lock/Unlock (Optional but Recommended): If your kit supports it and you want to retain key fob control for locks, connect the module’s lock and unlock wires to the corresponding wires in your Jeep’s door lock system. This can be one of the more challenging connections.
Horn Output (Optional): If your kit allows, connect the horn output wire to the Jeep’s horn wire to get an audible confirmation when the remote start engages or disengages.
Parking Lights Output (Optional): Connect to the Jeep’s parking light wires to get visual confirmation.
Hood Pin Switch: Install a hood pin switch as part of the system. Connect the module’s hood pin input to this switch. If the hood is opened, the remote start will not engage, or it will shut off.
Factory Key Override (if applicable): For certain integrations or to bypass the factory immobilizer (if equipped), you might need to connect to specific vehicle wires. This is where a Jeep remote start bypass module might come into play, simplifying the process.

Step 4: Programming and Testing

Reconnect Battery: Once all wiring is complete and insulated, reconnect the negative battery terminal.
Program the Remote: Follow the kit’s instructions to program your remote fobs to the control module. This usually involves a sequence of button presses and ignition key turns. This is where how to program Jeep remote start becomes crucial.
Test Functions:
- Lock/Unlock: Test if your key fob can lock and unlock the doors.
- Remote Start: Attempt to remote start the Jeep. Verify the engine starts and runs.
- Shut Off: Test the remote shut-off function.
- Safety Features: Ensure the parking brake engages correctly and the engine shuts off if you attempt to drive without starting it with the key. Test the hood pin switch.

Step 5: Reassemble Interior Components

Carefully reattach all removed interior panels and trim pieces, ensuring no wires are pinched or exposed.

Specific Jeep Models:

Remote Start Jeep Wrangler: Wranglers, especially newer models (JK and JL generations), often have robust aftermarket support. Installation complexity can vary.
Remote Start Jeep Cherokee: Cherokees also have a good selection of aftermarket options. Older models might require more complex wiring compared to newer ones with more integrated electronics.

Programming Your Jeep Remote Start: A Deeper Dive

The process of how to program Jeep remote start is specific to the system you have installed, whether it’s factory or aftermarket.

Programming Factory Remote Start:

Generally, factory remote start systems do not require user programming for basic operation. They are pre-programmed by the manufacturer. If you lose a key fob or need to replace it, you will likely need to visit a dealership or a qualified automotive locksmith who can program the new fob to your Jeep using specialized diagnostic tools.

Programming Aftermarket Remote Start:

Aftermarket systems are where programming becomes a user task.

Common Programming Steps for Aftermarket Systems:

Enter Programming Mode: This usually involves a specific sequence of turning the ignition key on and off and pressing buttons on the remote fob. The exact sequence is detailed in your kit’s manual.
Program Fobs: Once in programming mode, you’ll typically press a button on the control module and then press a button on the remote fob to link them. Repeat for each fob you want to use.
Set Features: Some advanced systems allow programming of various features, such as run time, alarm sensitivity, and chirp confirmation, through specific button combinations on the fob or via a smartphone app.

Troubleshooting Programming Issues:

Incorrect Sequence: Double-check the programming sequence from your manual. Even one wrong step can prevent programming.
Wrong Mode: Ensure you are entering the correct programming mode for the fobs or the system itself.
Dead Batteries: Check the batteries in your remote fobs.
System Reset: Some systems have a reset procedure that might be necessary before attempting programming again.

When Your Jeep Remote Start Isn’t Working

It can be frustrating when your Jeep remote start not working. Here’s a troubleshooting guide to help you diagnose the issue:

Common Causes and Solutions:

Dead Key Fob Battery: This is the most common culprit. Replace the battery in your key fob.
Vehicle Not Armed: Ensure the doors are locked before attempting to remote start.
Hood Not Securely Closed: Check that the hood is fully latched. Most systems have a sensor to prevent starting if the hood is open.
Check Engine Light On: As mentioned, the check engine light will prevent remote start. Address any engine codes or warning lights.
Low Vehicle Battery: A weak vehicle battery might not have enough power to engage the starter. Ensure your Jeep’s battery is in good condition.
Door Ajar: Make sure all doors, the tailgate, and the sunroof are fully closed.
Parking Brake Not Engaged: The parking brake must be set for safety.
Interference: Strong radio frequency interference in your location can sometimes disrupt the signal from the key fob. Try starting in a different location.
System Fault (Aftermarket):
- Loose Connections: If you performed a DIY installation, check all wiring connections for looseness or corrosion.
- Blown Fuse: Check the fuses related to the remote start system.
- Control Module Failure: The control module itself might have failed.
Factory System Reset/Lockout: In rare cases, the factory system might enter a lockout mode due to repeated failed attempts. A dealership visit might be necessary.

Diagnosing Aftermarket Systems:

If you have an aftermarket system and suspect a wiring issue, a multimeter is essential.

Check Power: Verify that the remote start module is receiving constant 12V power.
Check Ignition/Starter Wires: Ensure the module is sending the correct voltage to the Jeep’s ignition and starter circuits when commanded.
Ground Connections: Verify that the module has a solid ground connection.

If you’ve exhausted these troubleshooting steps and still can’t get your remote start working, it might be time to contact the installer or a professional auto electronics technician.

Advanced Remote Start Features and Integration

Beyond basic start and stop, modern remote start systems offer a wealth of features that enhance convenience and security.

Two-Way Remote Start:

These systems provide visual or audible feedback on your remote fob, confirming that the vehicle has started or shut down. This is incredibly useful if you’re unsure if the signal was received, especially over longer distances or in areas with potential interference.

Smartphone Integration:

This is the pinnacle of remote start convenience. Through a dedicated app, you can:

Start/Stop Your Jeep: From virtually anywhere with cellular service.
Lock/Unlock Doors:
Arm/Disarm Alarm:
Check Vehicle Status: Battery voltage, door status, etc.
Locate Your Jeep: GPS tracking.
Schedule Start Times: Pre-condition your Jeep for specific departure times.

Considerations for Smartphone Integration:

Subscription Fees: Many smartphone integration services require a monthly or annual subscription fee.
Data Usage: The system will use cellular data, which may impact your mobile plan.
Compatibility: Ensure the smartphone module is compatible with your chosen remote start system and your Jeep.

Remote Start Bypass Modules:

For many modern vehicles, including Jeeps equipped with factory immobilizers (a system that prevents the engine from starting without the correct key), a bypass module is essential for aftermarket remote start installation.

What it Does: A bypass module essentially simulates the presence of the factory key. It “hands over” control of the immobilizer system to the remote start module when remote start is activated.
How it Works: Typically, you’ll need to “sacrifice” a spare factory key by programming it into the bypass module. This programmed key is then usually hidden within the vehicle’s dash, close to the ignition cylinder, so the immobilizer can detect it.
Importance: Attempting to install an aftermarket remote start on a vehicle with an immobilizer without a bypass module will result in the engine starting and immediately shutting off, as the immobilizer will detect that the correct key is not present.
Installation: Jeep remote start bypass module installation can be complex and requires precise wiring to the vehicle’s immobilizer system. This is often where professional installation is highly recommended.

Remote Start for Specific Jeep Models

Let’s look at some popular Jeep models and their remote start considerations.

Remote Start Jeep Wrangler (JK & JL)

JK (2007-2018): Remote start kits are readily available for the JK. Many systems can integrate with the factory key fob or come with their own remotes. Immobilizer bypass modules are typically required for most aftermarket installations.
JL (2018-Present): The JL generation has more advanced electronics. Many JL models come with the option of factory remote start. For aftermarket options, ensuring compatibility with the CAN bus system is crucial. Bypass modules are almost always necessary. Smartphone integration is very popular for JL owners.

Remote Start Jeep Cherokee (KL)

KL (2014-2023): The KL Cherokee also has good aftermarket support. Factory remote start may be available on higher trims. For aftermarket systems, compatibility with the vehicle’s electronic systems is key. Bypass modules will be needed for most installations.

Remote Start Jeep Grand Cherokee (WK2 & WL)

WK2 (2011-2021): Grand Cherokees often come with advanced features, and factory remote start is a common option. Aftermarket kits are available, and proper integration with the vehicle’s electronics, especially for power locks and alarm systems, is important.
WL (2022-Present): Newer Grand Cherokee models follow similar trends, with a strong emphasis on factory integration. Aftermarket installations will require careful attention to wiring and potential bypass modules.

Frequently Asked Questions (FAQ)

Q: Can I use my existing Jeep key fob to remote start if I don’t have the factory option?

A: Not directly. Aftermarket systems usually come with their own set of remotes. However, some advanced aftermarket systems can be programmed to work with your Jeep’s factory key fob for basic functions like locking and unlocking, and in some cases, for remote start itself, although this is less common and requires specific integration modules.

Q: How long does a remote start session last?

A: Factory systems typically run for a set duration, often 10-15 minutes, and will shut off automatically. Most aftermarket systems allow you to customize the run time, usually between 5 and 30 minutes.

Q: Is it safe to remote start my Jeep?

A: Yes, remote start systems are designed with safety features. They will not engage if the hood is open, the parking brake isn’t set, or the transmission isn’t in Park. They also shut off if the brake pedal is pressed without first starting the vehicle with the key.

Q: Will remote starting my Jeep void the warranty?

A: Installing an aftermarket remote start system could potentially void your vehicle’s warranty on components directly affected by the installation if a problem arises from the installation itself. However, manufacturers cannot void your entire warranty solely because an aftermarket part was installed. It’s always best to use reputable brands and, if unsure, consider professional installation.

Q: How do I know if my Jeep has factory remote start?

A: Check your key fob for a button with a circular arrow symbol. You can also consult your Jeep’s owner’s manual or check the original window sticker for the vehicle’s build options. Many Jeep dealerships can also tell you if your VIN includes the remote start feature.

Q: I bought a Jeep with an aftermarket remote start, but I don’t have the remote. What can I do?

A: You’ll need to determine the brand and model of the remote start system installed. Once identified, you can typically purchase a compatible replacement remote from the manufacturer or a specialized dealer and program it according to the system’s instructions.

Q: What is a “key bypass” for remote start?

A: A key bypass module (or transponder bypass) is a device that allows an aftermarket remote start system to communicate with your Jeep’s factory immobilizer system. It essentially provides the signal the car’s computer needs to allow the engine to run after being remote started, without requiring the physical key to be in the ignition.

By following this comprehensive guide, you should be well-equipped to understand, operate, and even install remote start systems for your Jeep, ensuring a more comfortable and convenient driving experience.