Can you start a Dodge Dart with a dead key fob?

A dead key fob generally prevents starting, but there are backup methods that can get you moving depending on your Dart’s configuration. If your car uses a traditional ignition, you may be able to start it with the mechanical key from the fob; if it relies on push-button start, you’ll usually need to replace the fob battery or use a designated backup method described in the owner's manual. This article explains what to try, what to check, and how to plan for future dead-fob scenarios.

Understanding Dodge Dart key systems

The Dodge Dart offers two common access/start configurations, and which one you have determines what you can do when the fob battery dies. Some trims use a push-button start with keyless entry, while others rely on a traditional ignition with a physical key. The reliability of starting with a dead fob depends on this setup, plus whether a mechanical key blade is provided inside the fob for entry or start.

Push-button start and keyless entry

In Dart models equipped with Keyless Enter ’n Go and a push-button start, a dead fob usually blocks the Start function unless you use a backup method. Many cars allow a temporary workaround—such as holding the fob near the Start button or a designated area—while pressing the brake to start, but this can vary by year and trim. Replacing the fob battery is typically the quickest fix.

Traditional ignition and mechanical key

If your Dart has a conventional ignition, you can often start the car using the mechanical key stored inside the fob. You would remove the key blade from the fob, insert it into the ignition cylinder, and turn to start, even if the fob’s battery is dead. Doors can still be unlocked with the mechanical key as well.

Backup methods to access and start with a dead fob include the following options:

• Use the mechanical key blade stored in the fob to unlock the driver's door; if your Dart has a keyed ignition, insert and turn the key to start the engine.


• Replace the fob battery immediately. The common replacement is a 3V coin-cell battery (often CR2032) found in many Dodge key fobs.


• Consult the owner’s manual for any model-specific emergency start procedure, such as a proximity-based start method or a hidden ignition slot if your Dart supports it.

These backup methods cover immediate access and starting in most common scenarios. If none of these approaches work, you should seek roadside assistance or visit a Dodge dealer to diagnose the fob and reprogram or replace it as needed.

What to do next if the fob remains dead or you cannot start despite backup methods:

• Confirm you are using the correct fob for the vehicle and try both remotes if you have a spare.


• Check all fob batteries and replace as soon as possible; consider replacing both fobs if one consistently fails.


• Arrange roadside assistance or contact a Dodge service center for fob reprogramming or replacement if the vehicle still won’t start after a battery change.

When facing ongoing issues, do not attempt forced starts or wiring modifications. Battery-related problems with key fobs are common and typically fixable with a battery replacement or fob service.

Preventive steps for future incidents

To minimize the chance of a dead fob catching you off guard, consider these preventive measures:

• Keep spare key fobs charged and readily accessible; replace batteries ahead of time rather than waiting for a complete failure.


• Store fobs away from strong magnetic fields and devices that can drain the battery prematurely; avoid leaving them near laptops or other electronics for extended periods.


• Regularly test both fobs and have a dealership reprogram or re-sync if you notice communication or starting delays.

Regular maintenance and a prepared backup plan can reduce the stress of a dead fob and keep your Dodge Dart on the road.

Summary

In most Dodge Dart configurations, a dead key fob won’t let you start the car unless you use a backup method. If your Dart has a traditional ignition, the mechanical key inside the fob can start the car. If you have a push-button start, you’ll typically need to replace the fob battery or use a manufacturer-approved workaround described in the manual. Always carry a spare fob or be ready to replace batteries promptly, and consult a dealer if problems persist. By understanding your model’s key system and keeping batteries fresh, you can minimize downtime and stay moving.

Will my car start with just the key without a fob?

Yes, you can often start your car without the key fob, especially if it's just the battery that's dead, by placing the fob directly on or near the push-button start. If you have lost the fob entirely, you will not be able to start the car with a push-button start unless you have a mechanical key, a digital key card, or a professional can help. 
If the key fob battery is dead

• Use the backup system: Most cars have a backup system that detects a dead fob. Place the fob directly against the start/stop button or the steering column to start the car, as a direct proximity can still transmit the signal. 
• Use the physical key: Many fobs contain a physical key inside. You can take this out to unlock the door and then use it in the ignition to start the car, as shown in this video. 

This video shows how to find and use the physical key hidden inside a key fob: 58sKPTV FOX 12 | Local news, weather Portland, OregonYouTube · Jan 8, 2025
If you've lost the key fob

• You cannot start the car: Without any key fob or the physical key it contains, you will not be able to start the engine if it has a keyless start system. 
• Your options include:
  • Using the physical key: If you have the physical key that the fob hides, you can use it to start the car. 
  • Using a digital key card: Some cars come with a digital key card that can start the car if placed in a specific slot, such as a wireless charging pad. 
  • Contacting a professional: You may need to contact a dealership or an automotive locksmith to get a replacement key or have the car reprogrammed, but this is often expensive. 

Can you drive a Dodge without the key fob?

Yes, you can still drive your Ram 1500 truck without the key fob if you have the mechanical key. Every Ram key fob comes with a physical key that hides inside your vehicle's key fob.

How to start a Dodge Dart with a dead key fob?

This. We take this we actually make contact with the push button with our foot on the brake. And it fires right up. Again no battery in this whatsoever. It reverse feeds circuitry.

Is there a key hole behind the push to start button?

Unless you broke everything up, then no. If you have push button start, there is no physical ignition anywhere on your car that you can insert a key to start it.