Start here · Essential guide
Dashboard Warning Lights: What the Colors Mean
Red, amber and green dashboard lights signal different levels of urgency. Learn how to read the colors, what to do first, and when to call a mechanic.
Care and Safety
Warning Lights and Diagnostics
Understanding dashboard signals, noises and basic diagnostics.
Battery and Charging System Warning Lights
Why the battery symbol lights up while you drive, how the alternator keeps the electrical system running, and what to do if the charging warning appears.
Brake System Warning Lights Explained
Learn how the parking brake, low brake fluid and anti-lock (ABS) warning lights differ, and what each one means for whether it is safe to keep driving.
Common Car Smells and What They Point To
Burning, sweet, fuel and other unusual smells in a car can signal problems of different seriousness. Learn what they may mean and when to stop driving.
Engine Temperature Warnings and Overheating
How to read the temperature gauge, what an overheating warning means, and the safe steps to take if your engine runs hot while you are driving.
How an OBD Code Reader Works
A code reader plugs into your car's diagnostic port and shows stored fault codes. Learn what it reveals, what codes mean, and what they cannot tell you.
Oil Pressure Warning: Why You Should Stop Driving
A red oil pressure warning means the engine may not be lubricated properly. Learn why it is urgent, what causes it, and what you can safely check.
Strange Car Noises and What They Can Mean
Squeals, clicks, knocks and grinding each hint at different problems. Learn how to describe a noise and which ones mean you should see a mechanic soon.
Tire Pressure Monitoring Light: What to Do
How a tire pressure monitoring system works, why the light comes on, the difference between steady and flashing, and the steps to take when you see it.
What the Check Engine Light Is Telling You
The check engine light can mean anything from a loose fuel cap to a serious misfire. Learn common causes, steady versus flashing, and sensible next steps.
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Maintenance and Repairs Routine upkeep, batteries and what repairs involve. Cleaning and Storage Washing, waxing and protecting a car in storage. Car Safety Safety features, child protection and crash ratings. Tires and Wheels How tires and wheels work, wear and get maintained. Engine, Fluids and Under the Hood What the main fluids and components do and how they are checked.