Ambient Temperature Sensor (Switch) Replacement at your home or office.

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How much does Ambient Temperature Sensor (Switch) Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Car Labor Cost Parts Cost Estimate Average Dealer Price Savings
2008 Chevrolet Trailblazer $70.00 $7.80 $78 $115.30 32%
2013 Buick Regal $70.00 $35.98 $106 $143.48 26%
2005 Subaru Outback $70.00 $15.58 $86 $123.08 30%
2004 Suzuki Grand Vitara $70.00 $45.58 $116 $153.08 24%
2002 Dodge Ram 2500 Van $70.00 $25.18 $95 $132.68 28%
2006 Mercedes-Benz ML350 $70.00 $27.58 $98 $135.08 27%
2012 BMW 535i GT xDrive $385.00 $37.94 $423 $629.19 32%
2010 Lexus HS250h $70.00 $23.98 $94 $131.48 28%
2009 Audi S6 $98.00 $15.58 $114 $166.08 31%
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Ambient Temperature Sensor (Switch) Replacement Service

What is the Ambient Temperature Sensor (Switch) all about?

Modern automotive HVAC systems have advanced by leaps and bounds over those used just a few years ago. Today, many high and even mid-range cars offer automatic climate control. This function basically allows you to “set it and forget it,” allowing the car’s computer to control the heating and cooling based on your preferred interior temperature. In order to do this, the computer needs information about not only the temperature inside the car, but also the ambient temperature outside the car.

The ambient temperature sensor (switch) is located either behind the front grille or in the front bumper. Its only job is to monitor air temperature (which it does through increasing/decreasing resistance in response to temperature fluctuations). This information is transmitted to the car’s computer, which then adjusts the climate control to meet your specifications.

If the ambient temperature sensor is damaged or fails, the car’s computer will not be able to automatically control the HVAC system, and the heater and air conditioner will only work in manual mode.

Keep in mind:

  • Because of its location, the ambient temperature sensor can be easily damaged in even minor front-end collisions.
  • Sensor failure is common even without an accident.

How it's done:

  • The ambient temperature sensor switch is verified to see if it needs to be replaced
  • The defective ambient temperature sensor switch is removed
  • The new ambient temperature sensor switch is installed
  • The ambient temperature sensor switch is tested for operation
  • The vehicle is tested to ensure proper operation of the ambient temperature sensor switch

Our recommendation:

Without the information provided by the ambient temperature sensor, your car’s computer does not have sufficient data to control the interior temperature, and will revert to manual HVAC control. You’ll still be able to use your air conditioner and heater, but only in manual mode, not in auto. If you suspect a problem with the ambient temperature sensor, have it diagnosed by one of our expert mechanics and replaced if necessary.

What common symptoms indicate you may need to replace the Ambient Temperature Sensor (Switch)?

  • HVAC auto mode will not work
  • HVAC auto mode produces delivers inconsistent/incorrect operation
  • HVAC will only work in manual mode
  • Outside temperatures may display incorrectly

How important is this service?

Having automatic climate control is definitely a convenience, but not critical to the operation of your vehicle. The heater will still operate to clear the windows and provide heating and cooling on manual mode. If the ambient temperature sensor is faulty, have it replaced.

Fast and easy Ambient Temperature Sensor (Switch) Replacement service at your home or office.

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Tom went above and beyond to make me as satisfied as I could be. His communication was excellent. Friendly and professional and best if all, my car is running great and he did it without unnecessary repairs. I would and will highly recommend Tom and Your Mechanic to everyone. Thanks, Rob Miller.



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