Typical repair cost: $0–$900
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Cause of ~50% of no-start calls. Test resting voltage (~12.6V) and CCA under load.
Single click with good battery voltage usually means a failed starter solenoid.
If the car ran fine then died and won't restart, the alternator likely failed and drained the battery.
Cranks but no fire, and you don't hear the pump prime when you turn the key on.
Theft-deterrent lockout shows on dash; some keys need re-programming.
Call a mobile mechanic or tow if a jump doesn't hold for 30 minutes of driving — repeated jumps damage modern electronics.
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