Yes. Use the hidden mechanical key to unlock the driver's door, then start the car with the push-button start as long as the fob is inside the vehicle or in a detection zone; if the fob battery is dead, you’ll likely need to replace the battery or use a spare fob.
When the key fob battery dies, the Honda Accord’s Smart Entry system may not detect the fob, which can prevent normal starting. This guide walks you through entry, starting with a dead fob, and what to do if the car won’t start. The exact location where the system detects the fob and any emergency-start steps can vary by trim, so consult your owner's manual for model-specific details.
Gaining entry and starting with a dead fob
The following steps help you gain access to the car and attempt to start it when the fob has no power.
- Access the mechanical key: Remove the hidden key blade from the fob by sliding the release tab on the fob’s side and pulling out the blade. Use this blade to manually unlock the driver’s door if the proximity sensors won’t respond.
- Enter with the fob inside the vehicle: After unlocking, open the door and sit in the driver’s seat with the fob either on your person or in the center area of the cabin as recommended by Honda. The engine will only start if the system detects the fob nearby, even if its battery is dead.
- Start the engine with the push-button start: With your foot on the brake, press the Start/Stop button. If the system detects the fob, the engine should start normally. If the fob isn’t detected, you may need to try again with the fob placed in the recommended detection area described in the manual; some vehicles require the fob to be in a specific spot inside the cabin.
- If the car still won’t start, replace the fob battery or use a spare fob: A dead key fob battery is the most common cause of this issue. Replacing the battery usually restores normal operation, and a spare fob can be used if available.
Concluding: This sequence enables entry and starting when the fob battery is dead, but success depends on the car detecting the fob. If detection fails, battery replacement or a spare fob is typically required, and you should consult the owner’s manual for any model-specific emergency steps.
Alternate options and troubleshooting
If you cannot start after trying the basic steps, consider these options to regain mobility and avoid getting stranded.
- Replace the key fob battery: Most Honda key fobs use a CR2032 battery. Remove the back cover, replace with the correct orientation, and reseal. This is the quickest fix and restores normal operation in most cases.
- Use a spare key fob: If you have a second fob, try starting with that one since it may still be functional.
- Contact roadside assistance or a Honda dealer: If you’re unable to start after battery replacement or don’t have a spare fob, professional help can unlock and start the car or tow it safely.
Concluding: Replacing the fob battery is usually the fastest fix. If no spare is available or the system still won’t detect the fob, seek professional help to avoid being stranded.
Tips and safety notes
Battery replacement and disposal
Use the correct battery type (typically CR2032) for the Honda key fob and dispose of used batteries according to local regulations. If you’re unsure, consult the owner’s manual or a dealer.
Preventive steps
To minimize future disruptions, replace fob batteries proactively before they fail and keep a spare battery on hand. Regular checks help ensure you won’t be stranded when you need to start the car.
Summary
A dead key fob on a 2015 Honda Accord can usually be managed by first using the mechanical key to enter, then attempting to start with the push-button start while the fob is inside the vehicle or in the recommended detection area. If the system does not detect the fob, replace the fob battery or use a spare fob. For persistent issues, contact roadside assistance or a dealer. Regularly replacing the fob battery is the best preventive practice to avoid getting stranded.