A warning light on your dashboard can range from a minor reminder to a serious emergency. Knowing the difference can save you from expensive damage or a dangerous situation.
Check Engine Light (Amber)
This is the most common and most misunderstood warning light. It can mean anything from a loose fuel cap to a failing catalytic converter. If it comes on and stays steady, book a diagnostic appointment soon. If it flashes, pull over safely — this indicates a severe misfire that can damage your catalytic converter.
Oil Pressure Warning (Red)
This is serious. If this light comes on while driving, pull over immediately and turn off the engine. Low oil pressure means your engine is not being lubricated properly. Driving even a short distance can cause catastrophic engine damage. Check your oil level and call for help if it is low.
Battery/Charging Light (Red)
This indicates your alternator is not charging the battery. Your car will continue to run on stored battery power for a short time, but eventually it will die. Head to your nearest mechanic promptly. Avoid turning on unnecessary electrical accessories to conserve battery.
Temperature Warning (Red)
Your engine is overheating. Pull over, turn off the AC, and let the engine cool. Do not open the radiator cap when hot. Check coolant levels once cooled. If this happens regularly, there may be a leak, a failed thermostat, or a water pump issue.
Brake Warning Light (Red)
First, check your handbrake is fully released. If the light stays on, it could indicate low brake fluid or a problem with the braking system. Do not ignore this — have it inspected immediately.
ABS Light (Amber)
Your anti-lock braking system has a fault. Your normal brakes will still work, but the ABS safety feature will not activate in an emergency stop. Get this diagnosed when convenient.
Tyre Pressure Monitor (Amber)
One or more tyres are significantly under-inflated. Check all four tyres (and the spare) and inflate to the correct pressure listed on the placard inside your driver door jamb.
Airbag Light (Red/Amber)
An airbag system fault means they may not deploy in a crash. This needs professional diagnosis — the system uses pyrotechnic charges and should never be worked on by anyone other than a qualified technician.
The Golden Rule
Red lights = stop driving. Amber lights = get it checked soon. Blue/green lights = information only (like high beams on).
Got a warning light that will not go away? Book a diagnostic check at Heatherdale Automotive and we will find the cause quickly.