Car won't start, just clicks
A single click or rapid clicking when you turn the key, with no cranking, means the starter is not getting enough current. The battery is the usual suspect.
Can I keep driving? Drivable with care. Diagnose soon: performance, economy or other components can be affected.
Common causes
Flat or weak battery
Rapid clicking is the classic sign: the starter solenoid engages, voltage collapses, it releases and repeats.
Loose or corroded battery terminals
Enough current for the lights, not enough for the starter.
Failed starter motor or solenoid
A single loud click with good battery voltage.
Poor engine ground
The starter's return path to the battery runs through the engine ground strap.
Automatic gearbox not detected in Park/Neutral
No click at all can be the range switch; try starting in Neutral.
What to check
- Check battery voltage: about 12.6 V when fully charged, under 12.2 V is weak.
- Clean and tighten the battery terminals.
- Try a jump start.
- If the battery is good, check voltage at the starter while cranking.
Related OBD2 codes
Repair guides
Other starting & electrical problems
General guidance only. A qualified technician can confirm the cause; brakes, steering and fuel leaks should be checked professionally if in doubt.