What year ranges does this Chrysler 300 Key Fob guide cover?

This Chrysler 300 Key Fob guide is limited to the source-backed clusters 2005u20132007 and 2008u20132009.

Does this Chrysler 300 Key Fob guide program the remote only or also the transponder?

For 2005u20132007 the procedure is described as programming additional Sentry Key Transponder blanks. For 2008u20132009 the procedure is described as programming an RKE transmitter fobik with an integrated key, and the Remote Keyless Entry (RKE) transmitter is programmed during the same procedure.

What if the Chrysler 300 Key Fob programming steps do not work?

Re-check prerequisites and timing windows. If fewer than two programmed keys or fobiks exist, on-vehicle programming does not apply and professional programming is needed.

When should DIY stop and a mobile automotive locksmith be contacted for a Chrysler 300 Key Fob?

When fewer than two programmed keys or fobiks exist, or when the year-range prerequisites are not met. For certain 2008u20132009 conditions with no programmed RKE transmitter with integrated key, the source indicates an authorized dealer is required.

Can a replacement Chrysler 300 Key Fob still need programming?

Yes. A replacement Chrysler 300 Key Fob generally needs to be programmed using the appropriate year-range procedure, and 2005u20132007 steps also require the blank key to be cut to match the ignition switch lock cylinder key code before programming is attempted.

Chrysler 300 Key Fob Programming by Year

Can you program a 300 fob without the dealer? For most years, yes. Pick your year for the route and best next step.

☎ Call (833) 439-8636

Find your year

Year	DIY onboard?	How it programs	Working fob?	Erase risk	Confidence	Best next step
2005–2007	Yes	Yes - onboard relearn	Yes (2 working)	—	Med	Follow the steps below
2008–2009	Yes	Yes - onboard relearn	Yes (2 working)	Possible	Med	Follow the steps below

Chrysler 300 key types & programming facts

2005-2009 Chrysler 300 models in the U.S. and Canada use an integrated remote-head key that contains both the mechanical blade and an immobilizer transponder chip. Programming a new key typically involves using existing working keys or compatible programming equipment via the vehicle’s OBD port and then pairing the new remote functions, usually without replacing the vehicle’s locks. Many aftermarket kits include an onboard or plug-in programmer designed specifically to add or replace remote-head keys for these model years.

Key types used on the 300:

remote-head key (integrated remote + transponder blade key) (2005-2009)

2005–2007 Chrysler 300

Route verified — exact steps vary by trim/equipment

Route verified as onboard programming (no dealer needed). The sequences below are general route guidance — use them only if your vehicle shows the same prompts and controls. If the prompts don’t match, stop and call us.

Show the programming methods (11 steps)

2) Preparation Steps

Programming step

1 Cut additional Sentry Key Transponder blank(s) to match ignition switch lock cylinder key code

Programming step

2 Ensure possession of two valid programmed keys before starting procedure

Programming step

3 Have blank Sentry Key(s) available for programming

Wait / timing window

4 Time-sensitive steps require attention to seconds and minute windows

3) Step-by-step Programming Procedure

Remove the key

1 Insert first valid key, turn ignition ON for at least 3 seconds but no longer than 15 seconds, turn OFF and remove first key

Remove the key

2 Insert second valid key and turn ignition ON within 15 seconds, wait about 10 seconds for chime and Theft Alarm Light flashing, turn OFF and remove second key

Insert the key

3 Insert blank Sentry Key and turn ignition ON within 60 seconds, wait about 10 seconds for single chime and Theft Alarm Light sequence

Wait / timing window

4 Confirmation: Theft Alarm Light stops flashing, turns on for 3 seconds then turns off indicating new key programmed

Programming step

5 Repeat procedure to program additional keys up to the 8-key limit

5) Miscellaneous and Legal

Programming step

1 Call-to-action: Print Instruction available

Programming step

2 Navigation links: Home, Disclaimer, YouTube, Privacy Policy

Keys & fobs that fit the 2005–2007 300

Lear Transponder Key (chip PCF7941)Standard KeyView fob →Bosma Remote Head Key (FCC ID KOBDT04A)Remote KeyView fob →

For the 2005–2007 300: 300 key replacement & all compatible fobs →

2008–2009 Chrysler 300

Route verified — exact steps vary by trim/equipment

Show the programming methods (17 steps)

Vehicle/Document Identification

Programming step

1 Title: Chrysler 300 Keyless Entry Remote Fob Smart Key Programming Instructions

Programming step

2 Additional pages: Home | Disclaimer | YouTube | Privacy Policy

Programming step

3 Printable option: Print Instruction available

Prerequisites and Requirements

Programming step

1 Two valid RKE transmitters (fobiks) required for on-vehicle programming

Programming step

2 Up to eight keys can be programmed using the procedure

Programming step

3 If no programmed RKE transmitter with integrated key available, authorized dealer contact required

Programming step

4 If fewer than two programmed keys available, locksmith needed to program two keys

Step 1 — First Key Procedure

Insert the key

1 Insert first valid key fobik into ignition switch

Turn ignition to ON

2 Turn ignition to ON for at least 3 seconds but no longer than 15 seconds

Cycle the ignition ON/OFF

3 Turn ignition to LOCK/OFF position after ON interval

Remove the key

4 Remove the first key following LOCK/OFF

Wait / timing window

5 Timing constraints: ON window 3–15 seconds

Step 2 — Second and New Key Procedures

Insert the key

1 Insert second valid key fobik and turn ignition to ON within 15 seconds

Wait / timing window

2 After 10 seconds, a chime may sound and Vehicle Security Light will begin to flash

Remove the key

3 Turn ignition to LOCK/OFF and remove the second key after flashing begins

Insert the key

4 Insert NEW key fobik and turn ignition to ON within 60 seconds

Wait / timing window

5 After 10 seconds, single chime sounds; Vehicle Security Light stops flashing, turns on for 3 seconds, then turns off indicating programming success

Keys & fobs that fit the 2008–2009 300

Lear Transponder Key (chip PCF7941)Standard KeyView fob →Bosma Remote Head Key (FCC ID KOBDT04A)Remote KeyView fob →

For the 2008–2009 300: 300 key replacement & all compatible fobs →

How we validate this guide

Year coverage comes from our consolidated vehicle programming dataset. Route-level programming status is reviewed against internal route sheets and available manufacturer, security-access, and professional tool references. Exact button sequences are marked source-verified only when we have year/equipment-specific support; where a year is labeled “route verified, steps vary,” we confirm the exact fob, trim, and prompts before programming. Reviewed for route and safety by Mohammad H. Abdelhadi, ALOA-Certified Master Locksmith.

Year	Route status	Exact steps
2005–2007	Route verified	General guidance
2008–2009	Route verified	General guidance

Common questions

What type of key does a 2005-2009 Chrysler 300 use?

These Chrysler 300 models use a remote-head key that combines the key blade, remote lock/unlock buttons, and an immobilizer transponder chip in one unit.

Can I program a replacement remote key for my Chrysler 300 without going to the dealer?

Some aftermarket kits for 2005-2009 Chrysler 300 include an OBD plug-in programmer that allows adding a remote-head key using a working key, but compatibility depends on the specific kit and vehicle.

Do I need to change the locks to get a new key for my Chrysler 300?

Usually no. A locksmith or dealer can cut a new blade to match your existing locks and program the transponder and remote functions to your car.

Can you program a 300 key fob without going to the dealership?

For most years, yes - the route is onboard relearn or an OBD tool, both of which a mobile locksmith handles at your location.

Does this program the remote only, or the transponder key too?

It depends on your key type. Tell us your FCC ID and we will confirm.

What if my year says professional programming required?

Those years need a programmer or security access; we bring the tool to you and program it on site.

How much does it cost?

It depends on year, key type, and whether you have a working key. Call (833) 439-8636 for a firm price before we dispatch.

Need your 300 fob programmed? We come to you, 24/7.

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