Push Button Start Switch Fault
The B0561 code means the vehicle's onboard diagnostic system has detected: Push Button Start Switch Fault. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $20 - $500 (parts and labor)
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Common Symptoms
- Vehicle does not respond to start button
- Push button start intermittent
- Key not detected message
- Multiple start attempts needed
Probable Causes (Ranked by Likelihood)
- Weak or dead key fob battery Very High
- Faulty keyless entry receiver module High
- Damaged antenna in door handle or vehicle Moderate
- RF interference from external sources Low
Step-by-Step Diagnostic Procedure
-
Replace key fob battery and retest
-
Check keyless entry receiver signal strength
-
Test door handle antenna circuits
-
Scan smart key module for fault codes
Frequently Asked Questions
Why does my key fob not work from a normal distance?
A weak fob battery is the most common cause. Radio frequency interference and faulty receiver antennas are also possible.
Can I start my car if the key fob battery is dead?
Most vehicles with push-button start have a backup location to hold the fob near, or a physical key slot for emergency starting.
How often should I replace the key fob battery?
Key fob batteries typically last 2-4 years. Replace them proactively when the low battery warning appears.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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