no heat coming from vents · heater not warm enough
The heater is turned to hot but only blows cool or lukewarm air, especially noticeable in cold weather.
Check the coolant level first (only when the engine is cool) - low coolant is the simplest and most common cause of weak heat.
Safe to drive, though uncomfortable in cold weather. If low coolant is confirmed, treat it seriously, since it also risks overheating.
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Descriptions are for guidance only and do not replace a workshop inspection. If you are ever unsure whether it is safe to keep driving, pull over in a safe spot.
Engine overheating
SeriousThe temperature gauge climbs into the red zone, or a coolant temperature warning appears on the dashboard.
Air conditioning blowing warm air
InfoThe air conditioning system runs and blows air, but the air is warm or only mildly cool instead of cold.
Coolant puddle under the car when parked
WarningA colored puddle (usually green, orange, pink or blue) appears under the car after it has been parked for a while.
Grinding noise when braking
SeriousA harsh, metallic grinding or scraping sound that happens specifically when you press the brake pedal, often worse at low speed.
