Find a fuse

Ford Focus · 2017

2017 Ford Focus Heated Seat Fuse

Heated seat not warming up? Find the driver and passenger heated seat fuses.

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources

Partly covered: Ford UK lists two Focus Electric (2015) handbooks for 2017 whose build dates overlap but whose fuse charts differ, and doesn’t say which applies to cars built in the overlap. Both are shown below — where they differ, compare the legend in your fuse box before removing anything.

Which 2017 Focus do you have?

The heated seat fuse differs between versions of the 2017 Ford Focus. Until you choose, every possible result is shown.

Not sure which Focus you have?
  • Ford UK lists the 2017 Focus under more than one model name: Focus (2015), Focus RS (2015) and Focus Electric (2015). Their fuse layouts differ.
  • Ford UK’s Owner Manuals page can find your car’s handbook from its VIN. The page it opens is titled with Ford’s model name, for example “Focus (2015)”.
  • Your printed owner’s handbook, or a franchised dealer with your VIN, can also confirm it.
  • Many cars carry a manufacturer’s label (often called the VIN plate) that can show the build or production date. It is commonly on a door pillar, under the bonnet or at the base of the windscreen, but the exact place varies.
  • Your owner’s handbook, service record or original sales paperwork may show the build date or specification.
  • The first registration date on your V5C logbook is not the build date. Cars are often built weeks or months before they are registered, so it is only a rough guide near a changeover.
  • A franchised dealer can usually confirm the build date and specification from your VIN.
  • Still unsure? Compare the legend on your fuse box cover with each option.

If you can’t confirm it, keep both results in mind and check the fuse box legend before removing anything.

Quick answer

Verified

Option A Focus (2015) or Focus RS (2015)

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources

Air conditioning. Moonroof. Heated seat switches. Passenger airbag deactivation switch.

Fuse
F85
Amperage
7.5A
Fuse box
Passenger compartment
Location
In the passenger compartment

Driver heated seat.

Fuse
F34
Amperage
15A
Fuse box
Luggage compartment
Location
In the luggage compartment

Passenger heated seat.

Fuse
F35
Amperage
15A
Fuse box
Luggage compartment
Location
In the luggage compartment

Quick answer

Verified

Option B Focus Electric (2015) · Built from 8 September 2014

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources

Air conditioning. Passenger airbag deactivation switch. Heated seat switches. Auxiliary heater.

Fuse
F85
Amperage
7.5A
Fuse box
Passenger compartment
Location
In the passenger compartment

Driver heated seat.

Fuse
F34
Amperage
15A
Fuse box
Load compartment
Location
In the load (luggage) compartment

Passenger heated seat.

Fuse
F35
Amperage
15A
Fuse box
Load compartment
Location
In the load (luggage) compartment

Quick answer

Verified

Option C Focus Electric (2015) · Built from 16 January 2017

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources

Driver heated seat.

Fuse
F34
Amperage
15A
Fuse box
Load compartment
Location
In the load (luggage) compartment

Passenger heated seat.

Fuse
F35
Amperage
15A
Fuse box
Load compartment
Location
In the load (luggage) compartment

Where is the fuse box?

Option A Focus (2015) or Focus RS (2015)

Passenger compartment fuse box

In the passenger compartment

  1. Pinch the retaining clips to release the cover.
  2. Lower the fuse box cover and pull it towards you.

Luggage compartment fuse box

In the luggage compartment

Our source doesn’t describe how to open this fuse box. Check your owner’s handbook.

Option B Focus Electric (2015) · Built from 8 September 2014

Passenger compartment fuse box

In the passenger compartment

  1. Pinch the retaining clips to release the cover.
  2. Lower the fuse box cover and pull it toward you.

Load compartment fuse box

In the load (luggage) compartment

Our source doesn’t describe how to open this fuse box. Check your owner’s handbook.

Option C Focus Electric (2015) · Built from 16 January 2017

Load compartment fuse box

In the load (luggage) compartment

Our source doesn’t describe how to open this fuse box. Check your owner’s handbook.

Fuse box diagram

Full 2017 Ford Focus fuse chart

Option A Focus (2015) or Focus RS (2015)

We haven’t drawn a schematic of the passenger compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

We haven’t drawn a schematic of the luggage compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

Where to look

  • F85

    In the passenger compartment

    Fuse ·7.5A · Air conditioning. Moonroof. Heated seat switches. Passenger airbag deactivation switch.

    Position not shown on the schematic. Find fuse F85 on the fuse box legend.

  • F34

    In the luggage compartment

    Fuse ·15A · Driver heated seat.

    Position not shown on the schematic. Find fuse F34 on the fuse box legend.

  • F35

    In the luggage compartment

    Fuse ·15A · Passenger heated seat.

    Position not shown on the schematic. Find fuse F35 on the fuse box legend.

Always confirm the number against the legend on the fuse box cover before pulling anything.

Option B Focus Electric (2015) · Built from 8 September 2014

We haven’t drawn a schematic of the passenger compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

We haven’t drawn a schematic of the load compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

Where to look

  • F85

    In the passenger compartment

    Fuse ·7.5A · Air conditioning. Passenger airbag deactivation switch. Heated seat switches. Auxiliary heater.

    Position not shown on the schematic. Find fuse F85 on the fuse box legend.

  • F34

    In the load (luggage) compartment

    Fuse ·15A · Driver heated seat.

    Position not shown on the schematic. Find fuse F34 on the fuse box legend.

  • F35

    In the load (luggage) compartment

    Fuse ·15A · Passenger heated seat.

    Position not shown on the schematic. Find fuse F35 on the fuse box legend.

Always confirm the number against the legend on the fuse box cover before pulling anything.

Option C Focus Electric (2015) · Built from 16 January 2017

We haven’t drawn a schematic of the load compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

Where to look

  • F34

    In the load (luggage) compartment

    Fuse ·15A · Driver heated seat.

    Position not shown on the schematic. Find fuse F34 on the fuse box legend.

  • F35

    In the load (luggage) compartment

    Fuse ·15A · Passenger heated seat.

    Position not shown on the schematic. Find fuse F35 on the fuse box legend.

Always confirm the number against the legend on the fuse box cover before pulling anything.

How to replace the fuse safely

  1. Switch off the ignition and all electrical equipment. Take the key out, or move a keyless fob away from the car.
  2. Open the fuse box and find the fuse using the number on the cover legend or the chart on this page.
  3. Pull the fuse straight out with the plastic fuse puller (usually clipped inside the fuse box) or fine-nose pliers.
  4. Look at the metal strip inside the fuse. A broken or burnt strip means it has blown.
  5. Fit a new fuse with exactly the same amperage rating. The number on top and the colour should match.
  6. Refit the cover, switch on and test the component.
  • Never fit a fuse with a higher amperage rating than specified. It can let wiring overheat.
  • Never bridge a fuse with wire, foil or anything else.

Fuse keeps blowing?

A fuse that blows again straight away is doing its job. Something on that circuit is drawing too much current. Common causes are damaged wiring shorting to the bodywork, a failing motor or socket, water getting in, or a faulty accessory. Fitting fuse after fuse, or a bigger fuse, won’t fix the fault and can overheat the wiring. Have the circuit tested by an auto electrician.

Not the fuse? Check these next.

  • One seat or both?

    If only one seat has failed, its own fuse, switch or heating pad is the likely cause.

  • Connector under the seat

    The seat wiring plugs in under the seat. Sliding the seat can strain or loosen this connector.

  • Heating element

    Elements can break inside the cushion, often where you kneel or slide in and out of the car.

Sources & verification

Focus (2015) · Built from 20 July 2015

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus (2015) · Built from 5 September 2016

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus RS (2015) · Built from 20 July 2015

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus RS (2015) · Built from 5 September 2016

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus Electric (2015) · Built from 8 September 2014

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus Electric (2015) · Built from 16 January 2017

Status
Verified
Specification
UK market
Last checked
14 October 2026

Fuse layouts can differ between trim levels and optional equipment. Always confirm against the legend on your fuse box.