Heater problems
Top problems
Overheating
Toyota Yaris 2008 compact 280000 miles
The Engine Overheating When I Drive Short Distance. I check radiator fan and engine oil it works
CommentMy heater is no longer working.
Toyota Yaris 2009 hatchback 2009/ 1,3 T3 Spirit 200000 miles
The car heater is not working. Even switched to hot after driving a long distance still it blows cold air
2 reports
It may sound strange, but check to make sure that the coolant/antifreeze level is full. My Yaris will only blow cold air if the coolant/antifreeze level is too low. That is because the coolant/antifreeze must circulate properly through the car's heater core in order for the heater to work. If the coolant/antifreeze level is too low OR if there are air bubbles in the coolant lines, then the flow is interrupted and the heater core can't get warm. Of course check the ENTIRE coolant/antifreeze system for function and leaks, INCLUDING the radiator and water pump. The Yaris is known for water pump failures. It is an inexpensive part to replace, but a bad water pump can destroy an engine! It was the first part on my Yaris to ever fail.
Comment11 reports
CommentNo heater is not getting hot
Toyota Yaris 2011 Hatchback 40000 miles
My aircon heater is not getting hot
No heater, signal lights, heater blower
Toyota Yaris 2007 Sedan 75000 miles
No heAt no working turn signal light
5 reports
Turn signals, heater blower and air bag light all went out at once
Toyota Yaris 2007 95000 miles
Turn signals, heater blower and air bag light all went out at once
7 reports
Jacking and gets hot
Toyota Yaris 2006 Hatchback 300000 miles
When I start the car in the morning it's revs neatly but as soon as it's starts being warm it's misfire and not responding accordingly. When it's warm it starts to hold back power and shows over heating
1 report
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1. Check all hoses/coolant lines for splits/leaks
2. Check the radiator, heater core, and the coolant tank THOROUGHLY for splits/leaks; these can be hard to see because the split plastic doesn't obviously look broken and/or in strange places
3. Make certain the water pump is working properly; the Yaris is known for water pump failures, it was the 1st part to ever fail on my Yaris (it's a cheap replacement)
4. Make certain that the coolant level is FULLY topped up in the radiator & coolant tank
5. Check for air bubbles in the coolant/antifreeze system, these can occur even in a full & topped up system!
6. Check for head gasket leakage or failure which will kill an engine if ignored! The primary symptoms are overheating and the mixing of oil and coolant, which will make either the oil or coolant (or both) look like chocolate milk. This requires immediate intervention!!!