Learn how to program a 2008-2010 Chrysler 300 Fobik remote yourself in under 30 seconds. Step-by-step guide with troubleshooting tips. No special tools required.

How to Program a 2008-2010 Chrysler 300 Fobik Remote

Last Updated: June 21, 2026

Quick Answer: Can You Program a Chrysler 300 Fobik Yourself?

Yes, you can program a 2008-2010 Chrysler 300 Fobik remote yourself in under 30 seconds—no special tools required. Just get in the car, close all doors, insert and remove the key from the ignition five times, then press the lock button on your new remote. This method programs the remote locking, unlocking, and trunk release functions only. The physical key blade must still be cut by a locksmith, and the immobilizer chip requires dealer-level tools to sync.

Understanding Your 2008-2010 Chrysler 300 Fobik Remote

The Fobik System Explained

The Fobik (FOb Integrated Key) remote combines three critical components into one sleek unit:

Key blade – the physical metal key that turns the ignition and opens doors manually
Remote keyless entry (RKE) – the buttons for locking, unlocking, and popping the trunk
Transponder immobilizer chip – a tiny RFID chip inside the fob that communicates with the car’s security system to allow engine start

The 2008-2010 Chrysler 300 uses a standardized Fobik design. You can identify yours by the integrated flip-out key and three or four buttons on the face. The FCC ID on the back should match one of these common codes: GQ43VT21T, GQ43VT20T, or GQ4T38T. Using a remote with the wrong FCC ID will prevent programming.

Model Years & Compatibility

This guide applies only to 2008, 2009, and 2010 Chrysler 300 models with a traditional key ignition. Earlier 2005-2007 models use a completely different programming sequence that involves holding the unlock button while cycling the key. If you own a 300 from 2011 or newer, the procedure also changes (usually requiring a scan tool). Push-to-start models (available as an option in later years) cannot use this DIY method either.

What DIY Programming Can and Cannot Do

Function	DIY Programmable?	Notes
Door lock/unlock	Yes	Standard add-on procedure
Trunk release	Yes	Programmed with lock function
Panic alarm	Yes	Part of same button sequence
Engine immobilizer (transponder)	No	Dealer or locksmith only
Physical key cutting	No	Locksmith or hardware store

Understanding this limitation saves you from frustration. You can unlock the doors with a used remote you buy online, but the car won’t start until a professional clones or programs the transponder chip inside.

The 30-Second Programming Method (Step-by-Step)

Follow these steps exactly. The system is sensitive to timing and door position.

Important Prerequisites

You must have at least one previously programmed, working Fobik remote. The car needs to see a valid remote to enter “customer learn mode.”
All doors must be closed and remain closed throughout the procedure. Opening any door aborts the process immediately.
The vehicle battery should be fully charged. A weak battery can cause erratic behavior.
Remove any aftermarket keyless entry modules that might interfere.

Step 1: Enter the Vehicle

Sit in the driver’s seat. Close all doors, including the trunk if it’s open. Do not open any door during the procedure or you’ll have to start over.

Step 2: Perform the Ignition Cycle (The “Magic” Sequence)

Insert the first working Fobik key into the ignition switch.
Turn the ignition from the OFF (Lock) position to the ON (Run) position – do NOT start the engine. The ON position lights up the instrument cluster.
Turn it back to OFF.
Repeat this OFF-to-ON cycle exactly 5 times within 10 seconds. Count each cycle clearly in your head.
On the 5th time, leave the key in the ON (Run) position.

Step 3: Confirmation of Programming Mode

If you performed the cycles correctly, the vehicle will give you visual and audible feedback:

You should hear a single chime (like a door ajar warning).
You may see the dashboard lights flash once.

This confirms the system is now in “Program New Remote” mode. You have about 30 seconds to proceed to the next step before the system times out.

Step 4: Program the New Remote

Remove the first working key from the ignition.
Take your new, unprogrammed Fobik remote and press and hold the UNLOCK button for at least 5 seconds.
While holding the unlock button, press the PANIC button for one second, then release both buttons.
You should hear a single chime or see the door locks cycle (lock then unlock). This confirms the new remote has been learned.

Step 5: Test the Remote

Exit the vehicle and close the door. Test each function:

Lock – press once; all doors should lock.
Unlock – press once; driver’s door unlocks; press twice for all doors.
Trunk release – hold for 2 seconds; trunk should pop.
Panic – press and hold for 1 second; horn and lights should activate.

Test the range from about 30–50 feet. If the signal is weak or intermittent, check the remote battery (CR2032). Replace it and try again.

Detailed Troubleshooting: When the 30-Second Method Doesn’t Work

Problem: No chime or flash after 5 ignition cycles

Why it happens: You might have accidentally turned the key to ACC instead of ON. Or you may own a 2005-2007 model that uses a different sequence. Another possibility: you cycled too slowly (exceeded 10 seconds).

Solution: Check that the key is turned firmly to the ON position (dash lights on). If you still get no response, try increasing the cycles to 6 within 10 seconds – some 2008-2010 models require six cycles for the first attempt. Wait 2 minutes and retry.

Problem: New remote won’t accept programming (no chime after pressing buttons)

Why it happens: Most commonly a dead battery in the new remote. The Fobik ships with a plastic tab protecting the battery, but sometimes the battery arrives dead. Less common: the remote uses an incompatible FCC ID.

Solution: Open the new remote (use a small flathead screwdriver to pry the case halves apart) and inspect the battery. Replace the old CR2032 with a fresh one. Insert the battery positive side facing down (toward the circuit board). Close the case and retry the programming steps.

Problem: Car battery was recently disconnected or replaced

Why it happens: The vehicle’s Wireless Control Module (WCM) may have lost its learned remote memory after a full power loss.

Solution: Drive the car for 10–15 minutes to allow the system to fully power cycle. Turn the engine off, wait 30 seconds, then try the 5-cycle procedure again. Driving helps the modules reinitialize.

Problem: You only have one working remote

Why it happens: The DIY method requires at least one already-programmed remote to activate “Customer Learn Mode.” Without it, the car cannot enter programming mode through the ignition cycle.

Solution: Borrow a friend’s working Fobik (temporarily) or visit a dealer or automotive locksmith. They can program a second remote using a diagnostic tool like WiTECH or Autel. This is the most common reason people get stuck.

Problem: Remote unlocks doors but car won’t start

Why it happens: The transponder immobilizer chip has not been programmed. This is a separate security system. The remote you just programmed can operate the locks, but the car’s engine start requires the RFID chip to match the vehicle’s SKIM (Sentry Key Immobilizer Module).

Solution: Only a Chrysler dealer or a qualified locksmith with a transponder programmer can sync the immobilizer chip. They will either program the chip to match your car’s PIN or clone the chip from your existing key.

Advanced Context: Fobik Battery Replacement & Maintenance

How to Replace the Battery

Over time, the CR2032 lithium coin cell inside your Fobik will weaken. Signs include reduced range, intermittent operation, or the need to press buttons multiple times.

Use a small flathead screwdriver to carefully pry the two halves of the Fobik case apart at the seam near the key ring.
Lift the circuit board out. You’ll see a round silver battery held by a metal clip.
Slide the old battery out and insert a fresh CR2032 with the positive (+) side facing down (toward the circuit board).
Reassemble the case halves – they snap together firmly.

Pro tip: If the range drops significantly after battery replacement, inspect the metal contact prongs. They can bend or corrode. Use a pencil eraser to gently clean them.

Key Blade Servicing

The physical key blade inside the Fobik can be cut by any hardware store that offers key cutting by code or by impressioning. The blade does not contain any electronics – it only mechanically turns the ignition cylinder. Cutting a new blade does not affect remote or immobilizer programming.

Range Issues

Expected range is 30–50 feet under normal conditions. If range drops to 10 feet or less:

Replace the remote battery first.
Check for sources of interference (LED lights, aftermarket stereos, metal buildings).
Inspect the vehicle’s wireless control module antenna – it’s usually located near the rear window.
If the problem persists across multiple remotes, the WCM may be failing. This is a known issue on Chrysler 300s of this era, especially in humid climates.

Frequently Asked Questions (FAQ)

Can I program a used Fobik remote from another Chrysler 300 to my car?

Yes, you can program the remote functions (lock, unlock, trunk). However, the immobilizer chip inside that remote is tied to the previous vehicle. It will not start your engine unless a dealer or locksmith reprograms or clones the transponder. Buy used remotes as “lock-only” solutions, not as spare keys for starting.

Will this procedure erase the programming of my existing remotes?

No. The 5-cycle method is an additive procedure. It adds the new remote to the vehicle’s memory without removing any previously learned remotes. All your existing remotes will continue to work. Only a dealer tool can erase all remotes and start fresh.

How many Fobik remotes can I program to a 2008-2010 Chrysler 300?

The vehicle can store up to 8 Fobik remotes at once. That’s plenty for a family. If you try to add a ninth, the oldest remote in memory will be overwritten.

My car has a push-to-start button. Is the procedure different?

Yes, completely different. Push-to-start models (typically 2011+ or some late 2010 special editions) require a diagnostic scan tool to program remotes. The 5-key-cycle method does not work. You’ll need to visit a dealer or a shop with a compatible programmer. For more details, check out our guide on [link to related guide on programming push-to-start Chrysler remotes].

Why does my new remote only work intermittently?

This is almost always a weak battery in the remote. Replace the CR2032. If the problem persists after replacement, inspect the battery contacts for corrosion. If all remotes in your household act flaky, the vehicle’s wireless control module (WCM) may be failing. A failing WCM is a known issue on this generation. Symptoms include reduced range, delayed lock/unlock response, and trouble entering programming mode.

Do I need a security code or PIN to program a new Fobik?

No. The 2008-2010 Chrysler 300 does not require a security PIN for the customer learn procedure. This was a user-friendly design choice. Later models reintroduced PIN requirements for some markets, but for 2008-2010, you can add remotes without dealer codes.

Tips for a Smooth Programming Experience

Work quickly but deliberately. The 10-second window for the ignition cycle is shorter than it sounds. Practice the key turns before you start.
Don’t start the engine. Turning the key to the START position immediately aborts learning mode. You’ll need to wait 2 minutes and retry.
If you fail, wait 2 minutes before retrying. The vehicle’s computer needs time to reset and clear any false lockout condition. Rushing into a second attempt will likely fail again.
Always have a backup plan. Program your new remote while you still have a working one. If you lose your only programmed remote, you’ll be stuck paying a dealer to force-program a new one.

Need a spare remote? Check out our guide on [link to related guide on choosing compatible Fobik remotes for 2008-2010 Chrysler 300] to avoid buying the wrong FCC ID.

About the Author: Erwin Salarda is an Automotive Service Equipment Technician based in the Philippines, specializing in computerized automotive diagnostic equipment such as OBD scanners and wheel alignment systems. Since 2012, he has been actively providing technical support, equipment installation, troubleshooting, after-sales service, and hands-on training for automotive service equipment used by workshops and automotive professionals.

He has received specialized training from international suppliers and manufacturers, including Launch X431 in Shenzhen, China, Lawrence Engineering Company in Guangzhou, China, and 3Excel Wheel Alignment Company in Shenzhen, China. Through these trainings, he developed advanced expertise in automotive diagnostics, calibration, wheel alignment systems, and computerized automotive service technologies.

Erwin Salarda provides professional after-sales support and technical training for automotive diagnostic and wheel alignment equipment, helping clients maximize the performance and proper use of their tools and systems. His experience covers equipment setup, software updates, calibration procedures, troubleshooting, and operational guidance for automotive workshops and service centers.

With more than a decade of experience in the automotive equipment industry, Erwin Salarda continues to support automotive businesses by delivering reliable technical expertise and practical training solutions.

For inquiries and equipment purchases, please visit https://carlifterph.com/

How to Program a 2008-2010 Chrysler 300 Fobik Remote (30-Second DIY)