How To Program A Chevy Key Fob With Remote Start

1. Understanding Chevy Key Fob Programming

Chevrolet key fobs offer convenience and security, allowing you to remotely lock, unlock, and even start your vehicle. Programming these fobs ensures they communicate correctly with your car’s computer system. Understanding the basics of Chevy key fob programming is essential for any car owner. Let’s dive into what you need to know.

1.1. Why Program a Chevy Key Fob?

There are several reasons why you might need to program a Chevy key fob:

• Replacement: If you’ve lost a key fob, a replacement needs to be programmed to work with your vehicle.
• Additional Fobs: Adding extra fobs for other drivers or as a backup.
• Malfunctioning Fob: If your current fob stops working, reprogramming it might solve the issue.
• Remote Start Feature: Activating or adding the remote start feature to your vehicle.

1.2. Key Fob Components

A typical Chevy key fob consists of several components:

• Buttons: Lock, unlock, trunk release, panic, and remote start.
• Transmitter: Sends signals to the vehicle’s receiver.
• Battery: Powers the transmitter.
• Circuit Board: Controls the fob’s functions.

Understanding these components can help you diagnose issues and ensure proper programming.

1.3. Tools Required

To program a Chevy key fob, you’ll typically need the following tools:

• Scan Tool: A diagnostic tool with pass-thru programming capability.
• Service Programming System (SPS): Software to communicate with your vehicle’s computer.
• EL-49642 SPS Programming Support Tool: Maintains stable voltage during programming.
• Vehicle’s VIN: Required to access the correct software.
• Authorization Code: Needed to enable the remote vehicle start option (if applicable).

Having these tools on hand will ensure a smooth programming process. CARDIAGTECH.NET can help you find the best scan tools and programming equipment to make the process smoother.

1.4. Safety Precautions

Before you begin, keep these safety precautions in mind:

• Stable Voltage: Ensure your vehicle has a stable voltage supply to prevent programming interruptions.
• Disable Accessories: Turn off or disable any systems that might drain the battery, such as interior lights and the HVAC system.
• Secure Connection: Make sure all connections between the scan tool, data link connector, and vehicle are secure.
• Latest Software: Ensure your programming tool has the latest software updates.

2. Step-by-Step Guide to Programming Your Chevy Key Fob

Programming a Chevy key fob involves a series of steps that must be followed precisely to ensure success. Here’s a detailed guide to help you through the process.

2.1. Preparing for Programming

Before you start, ensure you have all the necessary tools and information. This includes your vehicle’s VIN, the authorization code (if needed), and a stable power supply.

2.2. Accessing the Service Programming System (SPS)

1. Install SPS Programming Support Tool: Connect the EL-49642 to maintain system voltage.
2. Connect Scan Tool: Connect your scan tool to the vehicle’s data link connector (DLC).
3. Access SPS: Open the Service Programming System (SPS) on your scan tool.
4. Follow On-Screen Instructions: Adhere to the prompts to ensure proper setup.

2.3. Body Control Module (BCM) Programming

1. Select BCM Programming: On the SPS Supported Controllers screen, select “BCM Body Control Module – Programming.”
2. Follow Prompts: Follow the on-screen instructions to program the BCM.
3. Ignition Type:
   • Key Ignition System: Ensure all keys are at least 3 meters away from the vehicle.
   • Push Button Start System: Place the keyless entry transmitter in the console programming pocket. Keep all other transmitters at least 3 meters away.
4. Wait: The programming process may take 10-12 minutes. Do not interrupt the process, even if it appears to have stopped.

2.4. Immobilizer Learn Setup

1. Select IMMO Immobilizer Learn – Setup: On the SPS Supported Controllers screen, choose “IMMO Immobilizer Learn – Setup.”
2. Delete Existing Keys (Optional): If you want to delete existing keys, select “Program Transponder or Remote Key (Delete)” and follow the instructions. Note that this will render the selected keys inoperable.
3. Add New Keys: Select “Program Transponder or Remote Key (Add)” to add new keys. Follow the on-screen instructions.
4. Press Unlock: After completing the Immobilizer Learn process, press the Unlock button on the keyless entry transmitter.
5. Repeat: Repeat this step for any additional remotes.

2.5. BCM Setup

1. Select BCM Setup: On the SPS Supported Controllers screen, select “BCM Body Control Module – Setup.”
2. Follow Instructions: Follow the on-screen instructions to complete the setup.
3. Check Driver Information Center: Look for any additional messages regarding further calibration instructions.

2.6. Clearing DTCs

1. Clear All DTCs: At the end of programming, select the “Clear All DTCs” function on the SPS screen.
2. Check ABS and Traction Control: If the ABS, Traction Control, and/or Stabilitrak indicators are ON and DTC C0161 is set, follow the additional steps provided in the guide.

2.7. Unsuccessful Programming Recovery

In the event of an interrupted or unsuccessful programming attempt:

1. Do Not Turn Off Ignition: Keep the ignition ON.
2. Check Connections: Ensure all connections are secure and that the TIS terminal operating software is up to date.
3. Reprogram: Attempt to reprogram the ECU.
4. Turn Off Ignition (If Necessary): If reprogramming fails, turn the ignition OFF for at least one minute, then turn it back ON and try again.
5. Replace ECU (If Necessary): If the ECU still cannot be programmed, it may need to be replaced.

3. Advanced Programming Techniques

Beyond the basic programming steps, there are advanced techniques that can help you customize your Chevy key fob and address specific issues.

3.1. Erasing All Fobs and Relearning

If you need to erase all existing key fobs and start fresh, follow these steps:

1. Access BCM Menu: Use a scan tool to access the Body Control Module Configuration/Reset Functions menu.
2. Select Add/Replace Key Fobs: Choose “Add/Replace Key Fobs.”
3. Select Erase/Program Fobs: This will erase all learned transmitters and prepare the BCM to learn new ones.
4. Follow Instructions: Follow the on-screen instructions to program new transmitters.
5. Verify Operation: After programming all desired transmitters, cycle the ignition from ON to OFF, exit the vehicle, and test the transmitter functions.

3.2. Programming Additional Fobs

To add new fobs without erasing the existing ones:

1. Access BCM Menu: Use a scan tool to access the Body Control Module Configuration/Reset Functions menu.
2. Select Add/Replace Key Fobs: Choose “Add/Replace Key Fobs.”
3. Select Next Available Slot: This will program the next available transmitter slot.
4. Follow Instructions: Follow the on-screen instructions to program the new transmitter.
5. Verify Operation: After programming, cycle the ignition and test the transmitter functions.

3.3. Diagnosing Common Key Fob Issues

Key fobs can sometimes experience issues that require troubleshooting. Here are some common problems and how to address them:

• Fob Not Responding:
  • Check Battery: Replace the battery in the key fob.
  • Reprogram Fob: Follow the programming steps outlined earlier.
  • Check Receiver: Ensure the vehicle’s receiver is functioning correctly.
• Remote Start Not Working:
  • Check Hood Latch Sensor: A faulty hood latch sensor can prevent remote start from working.
  • Check DTCs: Use a scan tool to check for any diagnostic trouble codes related to the remote start system.
  • Verify Programming: Ensure the remote start feature is properly programmed in the BCM.
• Intermittent Issues:
  • Check Connections: Ensure all connections in the key fob and vehicle are secure.
  • Avoid Interference: Keep the key fob away from devices that may cause interference, such as other electronic devices.

4. Optimizing Remote Start Functionality

The remote start feature is a valuable addition to any Chevy vehicle, providing convenience and comfort. Here’s how to optimize its functionality.

4.1. Understanding Remote Start Features

Chevy’s remote start system allows you to start your vehicle from a distance, enabling the engine to warm up or cool down the cabin before you get in. Key features include:

• Range: The distance from which the remote start will function.
• Run Time: The amount of time the vehicle will run after being started remotely (typically 10-15 minutes).
• Safety Features: Systems that prevent the vehicle from being driven while in remote start mode.

4.2. Customizing Settings

Many Chevy vehicles allow you to customize the remote start settings through the vehicle’s infotainment system. Options may include:

• Run Time: Adjust the duration the vehicle runs during remote start.
• Climate Control: Set the climate control system to activate during remote start.
• Heated Seats: Enable heated seats to turn on during remote start.

4.3. Troubleshooting Remote Start Issues

If your remote start isn’t working, consider the following troubleshooting steps:

1. Check Battery: Ensure the key fob battery is fresh.
2. Check Hood Latch Sensor: A faulty hood latch sensor can prevent remote start activation.
3. Check DTCs: Use a scan tool to check for any diagnostic trouble codes related to the remote start system.
4. Verify Programming: Ensure the remote start feature is properly programmed in the BCM.
5. Check Remote Start Enablement: Verify remote start is enabled in the vehicle’s settings.

5. Choosing the Right Scan Tool

Selecting the right scan tool is crucial for effectively programming and maintaining your Chevy key fob. Here’s what to consider.

5.1. Key Features to Look For

When choosing a scan tool, consider these essential features:

• Pass-Thru Programming: This allows the scan tool to communicate with the vehicle’s computer and program new keys.
• SPS Compatibility: Ensure the scan tool is compatible with the Service Programming System (SPS) used by GM vehicles.
• DTC Reading and Clearing: The ability to read and clear diagnostic trouble codes (DTCs) is essential for troubleshooting issues.
• Live Data Streaming: This feature allows you to monitor real-time data from the vehicle’s sensors and systems.
• User-Friendly Interface: A clear, easy-to-navigate interface will make the programming process smoother.
• Regular Updates: Ensure the scan tool receives regular software updates to stay compatible with the latest vehicle models.

5.2. Top Scan Tool Recommendations

Based on these features, here are a few recommended scan tools for programming Chevy key fobs:

• Autel MaxiSys MS906BT: Offers comprehensive diagnostics and pass-thru programming capabilities.
• Launch X431 V+: A versatile scan tool with wide vehicle coverage and advanced programming functions.
• Snap-on Solus Edge: Known for its user-friendly interface and robust diagnostic features.
• CARDIAGTECH.NET Diagnostic Tool: Our recommended tool, designed for comprehensive car diagnostics.

5.3. Comparing Scan Tool Brands

Here’s a quick comparison of popular scan tool brands:

6. Understanding Vehicle History System (IVH)

The Vehicle History System (IVH) is a crucial tool for determining whether your Chevy vehicle requires key fob programming or not. Here’s what you need to know.

6.1. What is the IVH System?

The Investigate Vehicle History (IVH) system is a database that contains detailed information about your vehicle, including its original configuration and any installed options.

6.2. How to Use the IVH System

1. Access the System: Typically, you’ll need a GM service account or access through a dealership to use the IVH system.
2. Enter VIN: Enter your vehicle’s VIN into the system.
3. Review Vehicle Build: Check the vehicle’s build sheet to see if it was originally equipped with the Accessory Remote Start kit.

6.3. Determining if Programming is Needed

• Check for RPO Code S6P: If the vehicle was built with RPO code S6P, it means the vehicle was produced with the correct system software, and no further programming is required after learning the new fobs.
• No S6P Code: If the S6P code is not listed in the RPO build of the vehicle, you’ll need to call the Technical Customer Support Center (TCSC) to obtain a VCI number.

7. Contacting Technical Customer Support Center (TCSC)

In certain situations, contacting the Technical Customer Support Center (TCSC) is necessary for obtaining the required information to program your Chevy key fob.

7.1. When to Contact TCSC

You’ll need to contact TCSC if:

• The Accessory Remote Start kit is being added to a vehicle.
• The S6P code is not listed in the RPO build of the vehicle.

7.2. Information Needed

When you call TCSC, make sure you have the following information ready:

• Vehicle’s VIN: The Vehicle Identification Number.
• Authorization Code: From the Accessory Remote Start kit.

7.3. Contact Numbers

Here are the contact numbers for TCSC:

• United States: 1-888-337-1010
• Canada (English): 1-800-828-6860
• Canada (French): 1-800-503-3222

8. Maintaining Your Chevy Key Fob

Proper maintenance of your Chevy key fob ensures its longevity and reliability. Here are some tips to keep your key fob in good condition.

8.1. Replacing the Battery

The battery is one of the most critical components of your key fob. Here’s how to replace it:

1. Identify the Battery Type: Check your owner’s manual for the correct battery type. Common types include CR2032 and CR2025.
2. Open the Key Fob: Use a small screwdriver or a plastic pry tool to open the key fob casing.
3. Remove the Old Battery: Carefully remove the old battery, noting the orientation.
4. Insert the New Battery: Place the new battery in the correct orientation.
5. Reassemble the Key Fob: Snap the key fob casing back together.
6. Test the Key Fob: Ensure the buttons work correctly.

8.2. Protecting Your Key Fob

To protect your key fob from damage:

• Keep it Dry: Avoid exposing the key fob to water or moisture.
• Avoid Extreme Temperatures: Don’t leave the key fob in direct sunlight or extreme cold.
• Use a Protective Case: Consider using a protective case to prevent scratches and damage.
• Store it Safely: Store the key fob in a safe place where it won’t be crushed or damaged.

8.3. Cleaning Your Key Fob

To keep your key fob clean:

1. Use a Soft Cloth: Wipe the key fob with a soft, dry cloth to remove dirt and fingerprints.
2. Avoid Harsh Chemicals: Do not use harsh chemicals or abrasive cleaners, as they can damage the plastic and electronic components.
3. Clean the Buttons: Use a cotton swab dampened with isopropyl alcohol to clean around the buttons.

9. Addressing Security Concerns

Security is a critical aspect of key fob programming. Here are some considerations to ensure your vehicle remains secure.

9.1. Preventing Key Fob Cloning

Key fob cloning is a security threat where unauthorized individuals duplicate your key fob. Here’s how to prevent it:

• Protect Your Key Fob: Keep your key fob in a safe place and avoid leaving it unattended.
• Be Aware of Surroundings: Be cautious of individuals who may be observing you when you use your key fob.
• Use Key Fob Covers: These can help prevent electronic eavesdropping.

9.2. Secure Programming Practices

When programming your key fob:

• Use Reputable Tools: Only use trusted scan tools and software. CARDIAGTECH.NET provides reliable tools and equipment.
• Follow Official Procedures: Always follow the official programming procedures outlined by GM.
• Clear Old Keys: When programming new keys, delete the old ones to prevent unauthorized access.
• Keep Software Updated: Ensure your programming software is up to date with the latest security patches.

9.3. Understanding Key Fob Hacking

Key fob hacking involves exploiting vulnerabilities in the key fob system to gain unauthorized access to your vehicle. Here’s what to know:

• Relay Attacks: These involve amplifying the key fob signal to unlock the vehicle from a distance.
• Jamming: This prevents the key fob signal from reaching the vehicle, potentially disabling security features.
• Countermeasures: Use signal-blocking pouches or Faraday bags to protect your key fob from these attacks.

10. Understanding Diagnostic Trouble Codes (DTCs)

Diagnostic Trouble Codes (DTCs) are codes that your vehicle’s computer system generates when it detects a problem. Understanding these codes is essential for troubleshooting key fob and remote start issues.

10.1. What are DTCs?

DTCs are standardized codes that help identify the source of a problem. They can be read using a scan tool and provide valuable information for diagnosing issues.

10.2. Common DTCs Related to Key Fobs and Remote Start

Here are some common DTCs related to key fobs and remote start systems:

• B389A: Immobilizer Learn procedure not properly completed.
• C0161: Indicates issues with the electronic brake control module (EBCM) after BCM programming.
• B1000: ECU Malfunction
• U0100: Lost Communication With ECM/PCM
• P1631: Theft Deterrent System

10.3. How to Read and Clear DTCs

1. Connect Scan Tool: Connect your scan tool to the vehicle’s data link connector (DLC).
2. Access DTC Menu: Navigate to the DTC menu on your scan tool.
3. Read DTCs: The scan tool will display any stored DTCs.
4. Record DTCs: Write down the DTCs and their descriptions.
5. Clear DTCs (If Necessary): After addressing the issue, use the scan tool to clear the DTCs.

11. The Importance of Regular Software Updates

Keeping your vehicle’s software updated is crucial for optimal performance and security. Here’s why.

11.1. Why Software Updates Matter

Software updates for your vehicle’s computer systems, including the BCM and ECU, provide several benefits:

• Improved Performance: Updates can optimize system performance and efficiency.
• Bug Fixes: Updates address any known software bugs or glitches.
• Security Enhancements: Updates include the latest security patches to protect against vulnerabilities.
• Compatibility: Updates ensure compatibility with new devices and features.

11.2. How to Update Your Vehicle’s Software

1. Check for Updates: Visit your local Chevy dealership or use a scan tool to check for available software updates.
2. Follow Instructions: Follow the on-screen instructions provided by the update tool or dealership.
3. Ensure Stable Power: Maintain a stable power supply during the update process to prevent interruptions.
4. Avoid Interruptions: Do not interrupt the update process, as this can cause serious issues.

11.3. Potential Risks of Outdated Software

Using outdated software can expose your vehicle to several risks:

• Performance Issues: Outdated software can lead to reduced performance and efficiency.
• Security Vulnerabilities: Outdated software may be vulnerable to hacking and unauthorized access.
• Compatibility Problems: Outdated software may not be compatible with new devices and features.

12. Case Studies: Real-World Examples

Examining real-world examples can provide valuable insights into key fob programming and troubleshooting. Here are a few case studies.

12.1. Case Study 1: Lost Key Fob Replacement

• Problem: A Chevy owner lost their key fob and needed to replace it.
• Solution:
  1. The owner purchased a new key fob from CARDIAGTECH.NET.
  2. They used a scan tool to access the BCM and erase all existing key fobs.
  3. They programmed the new key fob using the SPS system, following the steps outlined in this guide.
  4. The new key fob was successfully programmed, restoring full functionality.

12.2. Case Study 2: Remote Start Not Working

• Problem: The remote start feature on a Chevy vehicle stopped working.
• Solution:
  1. The owner used a scan tool to check for DTCs and found a code related to the hood latch sensor.
  2. They inspected the hood latch sensor and found it was faulty.
  3. They replaced the hood latch sensor.
  4. After replacing the sensor, the remote start feature worked correctly.

12.3. Case Study 3: Key Fob Battery Draining Quickly

• Problem: A Chevy key fob battery was draining quickly, requiring frequent replacements.
• Solution:
  1. The owner inspected the key fob for any signs of damage or corrosion.
  2. They cleaned the key fob with a soft cloth and isopropyl alcohol.
  3. They replaced the battery with a high-quality battery from a reputable brand.
  4. After cleaning and replacing the battery, the key fob battery life improved significantly.

13. Future Trends in Key Fob Technology

Key fob technology is constantly evolving. Here are some future trends to watch for.

13.1. Digital Key Technology

Digital key technology allows you to use your smartphone as a key to access and start your vehicle. This technology offers several benefits:

• Convenience: No need to carry a physical key fob.
• Security: Digital keys can be easily revoked if your phone is lost or stolen.
• Sharing: Digital keys can be shared with family members or friends.

13.2. Biometric Authentication

Biometric authentication uses your fingerprint or facial recognition to verify your identity and unlock your vehicle. This technology enhances security and convenience.

13.3. Over-the-Air (OTA) Updates

Over-the-air (OTA) updates allow you to update your vehicle’s software wirelessly, without needing to visit a dealership. This makes it easier to keep your vehicle’s software up to date with the latest features and security enhancements.

14. Frequently Asked Questions (FAQs)

Here are some frequently asked questions about programming Chevy key fobs with remote start.

1. Q: Can I program a Chevy key fob myself?
   • A: Yes, with the right tools and software, you can program a Chevy key fob yourself.
2. Q: What tools do I need to program a Chevy key fob?
   • A: You’ll typically need a scan tool with pass-thru programming capability, the Service Programming System (SPS), and the vehicle’s VIN.
3. Q: How do I know if my vehicle has remote start?
   • A: Check your vehicle’s build sheet or look for the remote start button on your key fob.
4. Q: How do I find my vehicle’s VIN?
   • A: The VIN is located on the driver’s side dashboard, near the windshield, or on your vehicle’s registration and insurance documents.
5. Q: What is the S6P code?
   • A: The S6P code indicates that the vehicle was produced with the correct system software for remote start.
6. Q: Do I need to contact TCSC to program my key fob?
   • A: You only need to contact TCSC if the Accessory Remote Start kit is being added and the S6P code is not listed in the RPO build of the vehicle.
7. Q: How do I replace the battery in my key fob?
   • A: Use a small screwdriver to open the key fob, remove the old battery, and insert a new one of the correct type.
8. Q: What should I do if my key fob is not working?
   • A: Check the battery, reprogram the fob, and ensure the vehicle’s receiver is functioning correctly.
9. Q: How can I protect my key fob from cloning?
   • A: Keep your key fob in a safe place, be aware of your surroundings, and use key fob covers.
10. Q: Where can I find reliable scan tools and programming equipment?
    • A: CARDIAGTECH.NET offers a range of high-quality scan tools and programming equipment for Chevy vehicles.