Battery light came on while driving

Likely causes

• Alternator failing
• Broken or loose drive belt
• A battery cable that's loose or crusted with corrosion
• Battery failing internally
• Blown fuse or wiring fault in the charging system

Try this first

• Turn off the A/C, radio, seat heaters and phone chargers
• Watch the temperature gauge, since on many cars the same belt also drives the water pump
• Avoid shutting the engine off until you're somewhere safe, because it may not restart
• Head for a parking lot or repair shop rather than onto the highway

When to call us

• The car died and won't restart
• You made it somewhere safe but the battery is now too weak to start
• The battery itself turns out to be the problem and needs replacing