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Heater Relay

Climate Control

Controls the power supply to the heater fan or blower motor.

The heater relay regulates the electrical power supplied to the heater fan or blower motor, ensuring it operates when needed to blow warm air into the cabin.

💵
Typical part cost
$20–$60🔒
🔧
Typical labor cost
$50–$150🔒
🛣️
Typically lasts
80,000–150,000 mi
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Or about
5.0–10.0 years
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DIY difficulty
3/10

⚠️ Owners Often Notice

If the Heater Relay is starting to fail, these are the signs owners most commonly report before it gets worse:

Heater fan not working
No heat in cabin
Heater fan stuck on
Blower motor malfunction

Related Services

Services commonly performed on or around this part.

Replace Heater Relay

No standard interval on file

Inspect Heater Relay

No standard interval on file

Test Heater Relay

No standard interval on file