Fuses and relays Buick Encore (2017-2022)

This material discusses in detail the fuse diagrams of the Buick Encore (first generation, restyiling): 2017, 2018, 2019, 2020, 2021, 2022 release.

Fuses F21 and F22 in the interior fuse box are responsible for the cigar lighter.

In the luggage compartment

Located on the driver's side of the trunk, behind the cover.

Diagram (2018-2022 models)
No. Description
RLY01 Empty
RLY02 Empty
RLY03 Empty
RLY04 Empty
RLY05 Empty
CB1 Empty
F1 Audio Amplifier  
F2 Rear drive control unit
F3-F17 Empty
S/B01 DC-DC transformer 400W
S/B03 DC/AC inverter
S/B04 Empty
S/B05 Empty
Diagram (2017 model year)
No. Description
RLY01 Right cornering lamp
RLY02 Left cornering lamp
F1 Empty
F2 Empty
F3 Amplifier audio
F4 Empty
F5 Rear drive control unit
F6 Left cornering lamp
F7 Right cornering lamp
F8-F18 Empty
Type "S/B"
S/B01 Empty
S/B02 Empty
S/B03 Empty
S/B04 DC/AC inverter
S/B05 Empty
S/B06 Empty
S/B07 DC-DC transformer 400W
S/B08 DC-DC transformer 400W
S/B09 Empty

In the engine compartment

Fuse box and auxilary relay box are near the battery.

Fuse box

General view.

No. Description
Type "U-Micro"
2 Buick Encore fuel pump relay (2017-2020)
4 Auxiliary heater pump (2017-2020)
Type "HC-Micro"
7 Starter/ Starter pinion
10 2018-2020: Starter solenoid
Type "Mini"
1 Run/Crank relay
3 Cooling fan - mid speed
5 Powertrain
8 Cooling fan - low speed
Type "HC-Mini"
6 Cooling fan - high speed
Type "Mini"
1 Moonroof
2 Exterior rearview mirror switch/Driver side power window/ Rain sensor/ Universal garage door opener (2017-2020)
Exterior mirror switch / Driver side power window / Rain sensor (2021-2022)
3 Canister vent solenoid
4 Empty
5 Electronic brake control module valve
6 Intelligent battery sensor (2017-2021)
7 Electric steering column lock (2017-2020)
8 Transmission control module (TCM) / FICM
9 Automatic occupancy sensing module
  • Headlamp leveling switch and leveling motor
  • Rear vision camera
  • Interior rearview mirror
11 Rear wiper
12 Rear window defogger
13 Power lumbar switch
14 Exterior rearview mirror heater
15 Fuel system control module battery
16 Heated seat module / Memory module  (2017-2020)
17 TIM DC DC converter/Fuel system control module RC/ Compass module  (2017-2022)
Fuel system control module RC  (2022)
18 Engine control module RC/ Transmission control module RC/ FICM RC
19 2017-2020: Fuel pump fuse
20 Empty
21 Fan relay (auxiliary BEC)
22 Empty
23 Ignition coil / Injector coil
24 Washer pump
25 Automatic headlamp leveling
26 EMS Var 1
27 Auxiliary heater pump
28 Engine control module powertrain / Ignition 3
29 Engine control module powertrain / Ignition 1 / Ignition 2
30 EMS Var 2
31 High-beam headlamp (Left)
32 High-beam headlamp (Right)
33 Engine control module battery
34 Horn
35 A/C clutch
36 Front fog lamps (2017-2020)
Type "J-Case"
1 Electronic brake control module pump
2 Front wiper
3 Linear power module blower
5 Empty
7 Starter solenoid
8 Cooling fan low - mid speed
9 Cooling fan - high speed
10 2017-2021: EVP system
11 Starter solenoid / Starter pinion

Auxilary relay block

Assigment of elements in the Buick Encore auxilary relay box.

RLY01 Electric vacuum pump
RLY02 Cooling fan contro relayl #1
RLY03 Cooling fan control relay #2
RLY04 Trailer or Empty

In the passenger compartment

Located from the driver's side in the instrument panel, behind the glove box. 

Gerenal view of the interior fuse box.

No. Description
RLY01 Accessory / Retained power
RLY02 Liftgate
RLY03 Empty
RLY04 Blower (2022)
RLY05 Logistic mode
F1 BCM 1
F2 BCM 2
F3 BCM 3
F4 BCM 4
F5 BCM 5
F6 BCM 6
F7 BCM 7
F8 BCM 8
F9 Discrete logic ignition switch
F10 Sensing diagnostic module battery
F11 Data link connector (DLC)
  • HVAC module
  • ICS
F13 Liftgate relay
F14 Central gateway module
F15 Lane departure warning/GENTEX (2017-2021)
F16 Adaptive forward lighting module (2017-2020)
F17 Electrical steering column lock (2017-2020)
  • Parking assist module
  • Side blind zone alert
  • BCM
  • Regulated voltage control
F20 Clock spring
  • Accessory 12V power outlet
  • Cigar Lighter
  • Auxiliary power outlet
  • DC center
  • Encore Cigarette Lighter Fuse 
  • HVAC module
  • ICS (2017-2020)
F24 Empty
F25 OnStar system
F26 Heated steering wheel (2017-2020)
F27 Instrument panel cluster/Auxiliary heater/Auxiliary virtual image display (2017-2021)
2022: Instrument cluster (2022)
F28 Trailer feed 2 (2017-2020)
F29 Faceplate (2017)
Infotainment system (2018-2021)
F30 DC/DC 400W (2017-2020)
F31 Instrument panel cluster module battery
F32 Silver box audio module/Navigation
F33 Trailer feed 1 (2017-2020)
F34 Passive entry/ Passive start
Type "Midi"
M01 12017-2021: Positive temperature coefficient
Type "S/B"
S/B01 Passenger power seat (2017-2021)
HVAC Aux heater – 1 (2022)
S/B02 HVAC Aux heater – 2 (2022)
S/B03 Power windows (Front)
S/B04 Power windows (Rear)
S/B05 Logistic mode relay
S/B06 Driver power seat
S/B07 Empty
S/B08 Trailer interface module (2017-2020)
Related fuse diagrams
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