What is the rumble on braking in rear of my 2010 fusion hybrid 100k miles?

usa or canada, no country told , (fail)
cars
RTM
read the manual

https://eautorepair.net/Marketing/Default.asp


wiki says (see why we can't guess where you are:)>
and lighting laws are not the same all over earth (yet)


From Wikipedia, the free encyclopedia
Jump to navigation Jump to search Ford Fusion may refer to:

• Ford Fusion (Americas), mid-size car produced between 2006 and 2020 model year
  • Ford Fusion Hybrid, gasoline-electric hybrid powered version
  • Ford Fusion Energi, plug-in hybrid version
• Ford Fusion (Europe), mini MPV produced from 2002 to 2012 sold in Europe

https://www.google.com/search?q=2010+Ford+Fusion+Hybrid.+fans+are+running+on+high+speed

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Power Steering - Hybrid The electric power assist steering system consists of:

• power steering control module
• electric motor
• torque sensor
• rack-and-pinion steering gear

The electric power steering system provides power steering assist to the driver by replacing the conventional hydraulic valve system with an electric motor coupled to the steering gear. The motor is controlled by an electronic control unit that senses the steering effort through the use of a torque sensor mounted between the steering column shaft and the steering gear. Steering assist is provided in proportion to the steering input effort and vehicle speed.

your best bet would be to have the ford dealer check it out !

http://www.autopartswarehouse.com/shop_years/ford-fusion-thermostat-2010.html

Thermostat Replacement FordFusionClub com The 1 Ford Fusion Forum

Possible causes
- Faulty Front Heated Oxygen Sensor Bank 1
- Front Heated Oxygen Sensor Bank 1 harness is open or shorted
- Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
Tech notes
Replacing the O2 Sensor 1 usually takes care of the problem

2010 Ford fusion hybrid recall/update for becm and PCM. Corrects issue. Software has to be updated

Similar issue on my 2013 taurus. Died on me one day and wouldn't even crank. Advancetrac Service, 911 assist unavailable, sometimes braking system faults and just about every light on the dash illuminated. No codes. The problem was the Run/Start relay (Start/Run??). Swapped it with the windshield wiper relay to verify. Car started but the wipers didn't work. Replaced the Relay for $25 from AutoZone.

I suggest check brake switch, underdash, top back side brake pedal or some short/ground there.

Might be a problem with the compass module itself. Since the car is new, and still under warranty, take it to the dealer. They will fix it free of charge. Trying to repair it yourself may void the waranty.

You use the "Setup" and "Reset" buttons in the Information Center. The sequence of button-pushing is different for Hybrid and Non-Hybrid vehicles. The sequence for your car should be outlined in your Owner's Manual.