2021 GMC Yukon Fuse Box Diagram

2021 GMC Yukon

Fuses and Circuit Breakers

The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems.

Danger
Fuses and circuit breakers are marked with their ampere rating. Do not exceed the specified amperage rating when replacing fuses and circuit breakers. Use of an oversized fuse or circuit breaker can result in a vehicle fire. You and others could be seriously injured or killed.

Warning
Installation or use of fuses that do not meet GM’s original fuse specifications is dangerous. The fuses could fail, and result in a fire. You or others could be injured or killed, and the vehicle could be damaged.

To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.
Fuses of the same amperage can be temporarily borrowed from another fuse location, if a  fuse goes out. Replace the fuse as soon as possible.

Engine Compartment Fuse Block

4 - Engine Compartment Fuse Block

The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle. Lift the cover to access the fuse block.

Caution
Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
 

Engine Compartment Fuse Panel Diagram

Fuses .. Usage
1 –
2 –
3 –
4 –
6 ELM 7
7 ELM 4
8 –
9 ELM 5
10 ELM 6
11 Spare
12 –
13 Washer front
14 Washer rear
15 Rec 2
16 Power sounder
17 Spare
19 DC/AC inverter
20 IECR 2
21 –
22 IECL 2

24 EBCM
25 REC 1
26 Camera wash
27 Horn
28 Headlamp RT
29 Headlamp LT
30 ELM 3
31 ELM 1
32 –
33 Not R/C
34 –
37 OBD body
38 MISC body
39 Upfitter
40 MISC IP
41 Trailer parking lamps
42 Right taillamp
44 Trailer tow
45 Secondary axle motor
46 ECM ignition

47 OBD engine
48 –
49 TCM
50 A/C clutch
51 TCCM
52 Front wiper
53 –
54 Left taillamps
55 Trailer back up lamp
56 SADS
57 Spare
58 Starter motor
60 AFM 1
61 ALC main
62 ICCM/CVS/DEF
63 Trailer brake
65 AUX UEC
66 Left cool fan motor
67 AFM2
68 ALC motor

69 Starter pinion
71 Cool fan motor lower
72 Right cool fan motor/ Lower
73 Left trailer stop turn lamp
74 TIM 2
75 DEFC
76 ELEC RNG BDS
78 ECM
79 –
80 Cabin cool pump 17W
81 Right trailer stop turn lamp
82 TIM 1
83 FTZM
84 Trailer battery
85 Engine
86 ECM
87 Injector B even
88 02 B sensor
89 02 A sensor
90 Injector A odd
91 ECM throttle control
92 Cool fan clutch AERO shutter

Relays .. Usage
5 –
18 DC/AC inverter
23 –
35 Park lamp
36 Run/Crank
43 Secondary axle motor
59 A/C (Air Conditioner) clutch
64 Starter motor
70 Starter pinion
77 Powertrain

Instrument Panel Fuse Block

 Instrument Panel Fuse Block

The right instrument panel fuse block access door is on the passenger side edge of the  instrument panel. Pull off the cover to access the fuse block.

Instrument Fuse Panel Diagram

There are relays on the back of the fuse block. To access, press the tabs and remove the fuse block.

Instrument Relay Panel Diagram

The vehicle may not be equipped with all of the fuses, relays, and features shown.

 

Fuses .. Usage
F1 Right door
F2 Left door
F3 UGDO/OHC/camera
F4 BCM 2
F5 Displays
F6 Front blower
F8 Left door panel
F10 Tilt/column lock
F11 USB/DLC
F12 CGM/onstar
F14 Right door panel
F17 Steering wheel control
F18 AVM 1
F19 –
F20 –
F21 –
F22 Heated wheel
F23 –
F24 –

F25 SEO/UPFITTER
F26 USB/SEO RAP
F27 APO/RAP
F28 Spare
F30 SDM AOS
F31 BCM 3
F32 CSM/USB
F33 BCM 4
F34 Out of park
F40 –
F41 –
F42 Electric park brake switch
F43 RSE
F44 AVM 2
F45 Radio module
F46 BCM 1A
F47 –
F48 TCM
F49 BCM 1
F50 DMS
F51 –
F52 –
F53 –
F54 Sunroof
F55 APO 3
F56 DC/DC CNV BATT 1
F57 DC/DC CNV BATT 2
F58 Spare
F59 –

Circuit Breakers .. Usage
CBO1 APO1
CBO2 APO2

Relays .. Usage
K1 –
K2 RAP/ACCY 1
K4 RAP/ACCY 2
K5 –

Rear Compartment Fuse Block

 

Rear Compartment Fuse Block

The rear compartment fuse block is behind the access panel on the left side of the   compartment.
Pull the panel out by grabbing the finger access slot at the rear edge.

Rear Compartment Fuse Panel Diagram

The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuses  ... Usage
F01 RFA
F02 WCM
F03 Heated seat module row 1 (Battery 1)
F04 MSM driver
F05 –
F06 –
F07 Amp aux 2
F08 –
F09 SEO UPFTR 2
F10 Motor seatbelt passenger
F11 Power folding seat row 2
F12 GBS
F13 –
F14 –
F15 Heated seat module row 1 (Battery 2)
F16 RH CINCH latch
F17 Memory seat module passenger
F18 Rear wiper

F19 Motor seatbelt driver
F20 Rear defogger
F21 –
F22 Rear HVAC display control
F23 EOCM
F24 Amp aux 3
F25 OBS DET
F26 RDCM
F27 Amp aux 1
F28 VPM
F29 –
F30 –
F31 Amp
F32 –
F33 ICCM
F34 Heated seat module row 2
F35 HFCR
F36 ELM
F37 –
F38 Power slide console

F39 –
F40 –
F41 –
F42 –
F43 UPA
F44 –
F45 AFL AHL
F46 Rear HVAC blower motor
F47 LH CINCH latch
F48 Power seat recline module
F49 Lift glass
F50 Driver power seat
F51 Power liftgate module
F52 Passenger power seat
K53 –
K54 –
K55 L/GLASS