Owner’s manual specs

2020 Ford Mustang Specs: Maintenance Schedule & Fuse Box

Figures for the 2020 Ford Mustang, copied from Ford’s own owner’s manual. Every one links to the manual page it came from.

From the manufacturer’s manuals. Every figure here is copied from the manufacturer's own manual, with a link to the page it came from. Where a manual is unclear or contradicts itself, we leave the figure out.

Maintenance schedule

Normal service schedule

Use this for ordinary driving.

Service	When
Change the engine oil and filter. Source: Owner’s Manual Printing 1 (PDF), page 406	At every oil change interval as indicated by the information display
Replace the cabin air filter. Source: Owner’s Manual Printing 1 (PDF), page 407	Every 20,000 mi(32,000 km)
Replace the engine air filter. Source: Owner’s Manual Printing 1 (PDF), page 407	Every 30,000 mi(48,000 km)

Severe service schedule

Use this if you tow, idle a lot, drive short trips in the cold, or run in dust.

Service	When
Change engine oil and filter as indicated by the information display and perform services listed in the Normal Scheduled Maintenance chart. Applies to: Towing a Trailer or Using a Car-top Carrier Source: Owner’s Manual Printing 1 (PDF), page 408	As required
Change engine oil and filter. Applies to: Operating in Dusty or Sandy Conditions Such as Unpaved or Dusty Roads Source: Owner’s Manual Printing 1 (PDF), page 409	Every 5,000 mi(8,000 km)
Inspect engine air filter. Replace as required. Applies to: Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use Such as Delivery, Taxi, Patrol Car or Livery Source: Owner’s Manual Printing 1 (PDF), page 409	Every 15,000 mi(24,000 km)
Replace cabin air filter. Applies to: Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use Such as Delivery, Taxi, Patrol Car or Livery Source: Owner’s Manual Printing 1 (PDF), page 409	Inspect frequently, service as required

Oil life & reset procedures

Oil change indicator reset

Before you start

Use the information display controls on the steering wheel to reset the oil change indicator.
From the main menu scroll to:

Steps

Press the right arrow button, then from this menu scroll to the following message. [Settings]
Press OK [Advanced Settings]
Press the right arrow button, then from this menu scroll to the following message. [Vehicle]
Press the right arrow button, then from this menu scroll to the following message. [Oil Life]
Press and hold the OK button until the instrument cluster displays the following message. Reset Successful [Hold OK to Reset]

You’ll know it worked: When the oil change indicator resets the instrument cluster displays 100%. Remaining Life {00}%

Source: Owner’s Manual Printing 1 (PDF), page 240

Fuse box locations & fuse chart

Passenger Compartment Fuse Panel

Where to find it

Passenger Compartment Fuse Panel The fuse panel is in the right-hand side of the passenger footwell behind a trim panel and plastic key code card.

To remove the trim panel, lift it from the rear retaining hooks, while pulling it toward you and swinging it away from the side.

Source: Owner’s Manual Printing 2 (PDF), page 227

What each fuse protects

Fuse	Amps	Protects	Source
1	—	Not used	p.230
2	10A	Power windows. Electrochromic mirror. Power door locks.	p.230
3	7.5A	Power mirrors (base). Memory seats (base). Not used (GT350, GT500).	p.230
4	20A	Not used (spare)	p.230
5	—	Not used	p.230
6	10A	Not used (spare)	p.230
8	5A	Telematic control unit - modem	p.231
9	5A	Not used	p.231
10	—	Not used	p.231
11	—	Not used	p.231
12	7.5A	Electronic control panel. Gateway module. Gear shift module (GT500).	p.231
13	7.5A	Steering column control module. Instrument cluster.	p.231
14	15A	Not used	p.231
15	15A	SYNC. Gauges.	p.231
16	—	Not used	p.231
17	7.5A	Headlamp leveling switch (base). Not used (GT350, GT500).	p.231
18	7.5A	Not used	p.231
19	5A	Not used	p.231
20	5A	intrusion sensor module	p.231
21	5A	In-vehicle temperature and humidity sensor	p.231
22	5A	Auxiliary body module	p.231
23	30A	Amplifier	p.231
24	30A	Vehicle dynamics module	p.231
25	20A	Ambient lighting module (base). Auxiliary body module.	p.231
26	30A	Right-hand front-window motor (power distribution module). Passenger door control unit.	p.231
28	30A	Right-hand rear-window power (base). Not used (GT350, GT500).	p.232
29	15A	Gateway module (base). Not used (spare) (GT350, GT500).	p.232
30	5A	Not used (spare)	p.232
31	10A	Remote keyless entry	p.232
32	20A	Audio unit	p.232
33	—	Not used	p.232
34	30A	Run/start bus	p.232
35	5A	Power distribution box run/start relay (base). Not used (GT350, GT500).	p.232
36	15A	Front camera (base). Not used (GT350, GT500).	p.232
37	20A	Heated steering wheel module (base). Run/start powertrain control module (GT350). Not used (GT500).	p.232

Power Distribution Box

Where to find it

The power distribution box is in the engine compartment.

Source: Owner’s Manual Printing 2 (PDF), page 221

What each fuse protects

Fuse	Amps	Protects	Source
1	—	Electronic fan 1 (GT500). Not used (base, GT350).	p.224
2	—	Not used	p.224
3	—	Electronic fan 1 (base). Not used (GT350, GT500).	p.224
4	—	Electronic fan 3 (base). Not used (GT350, GT500).	p.224
5	—	Automatic brake system pump	p.224
6	—	Body control module	p.224
7	—	Body control module	p.224
8	—	Body control module	p.224
9	—	Rear window defroster	p.224
10	—	Blower motor	p.224
11	—	Left-hand front window	p.224
12	—	Driver seat	p.224
13	—	Passenger seat	p.224
14	—	Climate-controlled seat module	p.224
15	—	Convertible top slave motor (base). Not used (GT350, GT500).	p.224
17	—	Convertible top master motor (base). Not used (GT350, GT500).	p.225
18	—	Not used. Steering column lock relay (base, GT350).	p.225
19	—	Transmission control unit (GT500)	p.225
20	—	Brake on-off switch	p.225
21	—	Horn	p.225
22	—	Powertrain control module relay	p.225
23	—	Air conditioning clutch	p.225
24	—	Voltage quality module	p.225
25	—	Steering column lock relay (GT500). Not used (base, GT350).	p.225
26	—	Windshield wiper motor	p.225
27	—	Not used	p.225
28	—	Automatic brake system valve	p.225
29	—	Electronic fan 1 (GT350). Not used (base, GT500).	p.225
30	—	Starter motor solenoid	p.225
31	—	Electronic fan 3 (GT350). Not used (base, GT500).	p.225
32	—	Latch relay coil. Run/start (base).	p.225
34	—	Exhaust valves	p.226
35	—	Right-hand high-intensity discharge head- lamps (GT350, GT500). Not used (base).	p.226
36	—	Alternator sense	p.226
37	—	Not used	p.226
38	—	Vehicle power 1	p.226
39	—	Not used	p.226
40	—	Vehicle power 2	p.226
41	—	Fuel injectors	p.226
42	—	Vehicle power 3	p.226
43	—	Not used. Vehicle power 4 (base).	p.226
44	—	Vehicle power 4 (GT350, GT500)	p.226
45	—	Not used	p.226
46	—	Differential pump (GT350, GT500). Not used (base).	p.226
47	—	Not used	p.226
48	—	Fuel pump #2 (GT350, GT500). Not used (base).	p.226
49	—	Fuel pump	p.226
51	—	Not used	p.227
52	—	Horn relay	p.227
53	—	Cigar lighter	p.227
54	—	Auxiliary power point	p.227
55	—	Electronic fan 2 (base, GT350). Not used (GT500).	p.227
56	—	Not used	p.227
57	—	Air conditioning clutch relay	p.227
58	—	Not used	p.227
59	—	Exhaust valves relay	p.227
60	—	Powertrain control module	p.227
61	—	Not used	p.227
62	—	Anti-lock brakes run/start switch	p.227
63	—	Not used	p.227
64	—	Electronic power assist steering	p.227
65	—	Not used. Blind spot information system. Rear view camera.	p.227
66	—	Rear window defroster relay coils. Vehicle dynamics module.	p.227
67	—	Not used	p.227
68	—	Headlamp leveling switch (base). Signature lighting (GT350, GT500).	p.227
74	—	Mass air flow sensor (base, GT350). Not used (GT500).	p.228
75	—	Rain sensor module (base). Not used (GT350, GT500).	p.228
76	—	Rear window defroster relay	p.228
77	—	Electronic cooling fan 2 relay (base, GT350). Not used (GT500).	p.228
78	—	Run/start relay (base). Not used (GT350, GT500).	p.228
79	—	Charge air cooler pump relay (GT500). Not used (base, GT350).	p.228
80	—	Windshield wiper relay	p.228
81	—	Starter motor solenoid relay	p.228
82	—	Powertrain control module relay	p.228
83	—	Cooling fan relay (GT500). Not used (base, GT350).	p.228
87	—	Heated exterior mirrors	p.228
88	—	Not used	p.228
89	—	Electronic fan 1 relay (base, GT350). Not used (GT500).	p.228
90	—	Differential pump relay (GT350, GT500). Not used (base).	p.228
91	—	Electronic fan 3 relay (base, GT350). Not used (GT500).	p.228
93	—	Fuel pump #2 relay (GT350, GT500). Not used (base).	p.229
94	—	Fuel pump relay	p.229

More fuse pages in the manual

Diagrams and printed legends we can’t host. Check the box name printed on a diagram before counting positions.

Not on this page

Fluids & capacities: The manual gives different answers by configuration, so we've left them out.

All Ford repair jobs →

Other Ford Mustang years

← 2019 Ford Mustang specs 2021 Ford Mustang specs →