Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links.
This greatly reduces the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you 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 you can.
Engine Compartment Fuse Block
The underhood fuse block is in the engine compartment, on the passenger side of the vehicle. Lift the cover for access to the fuse/ relay block.
Caution
Spilling liquid on any electrical component on the vehicle may damage it. Always keep the
covers on any electrical component.
To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.
Engine Compartment Fuse Panel Diagram |
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses .. Usage
A/C CLTCH Air Conditioning clutch
ABS MTR Antilock Brake System (ABS) Motor
AIRBAG Airbag system
AUX POWER Auxiliary power
AUX VAC PUMP Auxiliary vacuum pump
AWD All Wheel Drive (AWD) system
BATT 1 Battery 1
BATT 2 Battery 2
BATT 3 Battery 3
CIGAR LIGHTER Cigarette lighter
ECM 1 Engine control module 1
ECM/ FPM IGN Engine control module/Fuel pump control module ignition
EMISSION 1 Emission 1
EMISSION 2 Emission 2
EVEN COILS Injector coils – even
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
FPM (2015-2017 Model Fuel pump power module)
FSCM (2013-2014 Model - Fuel System Control Module)
HORN Horn
HTD MIR Heated exterior rearview mirror
HTD STR WHL Heated steering wheel
HUMIDITY/ MAF Humidity sensor/ MAF sensor
HVAC BLWR Heating,Ventilation, and Air Conditioning Blower
LT HI BEAM Left high-beam headlamp
LT LO BEAM Left low-beam headlamp
LT PRK Left parking lamp
LT TRLR STOP/TRN Left trailer stoplamp/Turn signal lamp
ODD COILS Injector Coils – odd
PWR L/GATE Power liftgate
PWR OUTLET Power outlet
RR APO Rear accessory power outlet
RR DEFOG Rear defogger
RR HVAC Rear climate control system
RT HI BEAM Right high-beam headlamp
RT LO BEAM Right low-beam headlamp
RT PRK Right parking lamp
RT TRLR STOP/TRN Right trailer stoplamp/Turn signal lamp
RVC SNSR Regulated voltage control sensor
S/ROOF/ SUNSHADE Sunroof
SERVICE Service repair
SPARE – Spare
STOP LAMP Stoplamps
STRTR Starter
TCM Transmission control module
TRANS Transmission
TRLR CK/UP Trailer reverse lamps
TRLR BRK Trailer brake lamps
TRLR PRK LAMP Trailer parking lamps
TRLR PWR Trailer power
WPR/WSW Windshield wiper/ Washer
HORN Horn
HTD MIR Heated exterior rearview mirror
HTD STR WHL Heated steering wheel
HUMIDITY/ MAF Humidity sensor/ MAF sensor
HVAC BLWR Heating,Ventilation, and Air Conditioning Blower
LT HI BEAM Left high-beam headlamp
LT LO BEAM Left low-beam headlamp
LT PRK Left parking lamp
LT TRLR STOP/TRN Left trailer stoplamp/Turn signal lamp
ODD COILS Injector Coils – odd
PWR L/GATE Power liftgate
PWR OUTLET Power outlet
RR APO Rear accessory power outlet
RR DEFOG Rear defogger
RR HVAC Rear climate control system
RT HI BEAM Right high-beam headlamp
RT LO BEAM Right low-beam headlamp
RT PRK Right parking lamp
RT TRLR STOP/TRN Right trailer stoplamp/Turn signal lamp
RVC SNSR Regulated voltage control sensor
S/ROOF/ SUNSHADE Sunroof
SERVICE Service repair
SPARE – Spare
STOP LAMP Stoplamps
STRTR Starter
TCM Transmission control module
TRANS Transmission
TRLR CK/UP Trailer reverse lamps
TRLR BRK Trailer brake lamps
TRLR PRK LAMP Trailer parking lamps
TRLR PWR Trailer power
WPR/WSW Windshield wiper/ Washer
Relays Usage
A/C CMPRSR CLTCH Air Conditioning Compressor Clutch
AUX VAC PUMP Auxiliary vacuum pump
CRNK Switched power
FAN 1 Cooling fan 1
FAN 2 Cooling fan 2
FAN 3 Cooling fan 3
HI BEAM High-beam headlamps
HID/ LO BEAM High Intensity Discharge (HID) Low-Beam Headlamps
HORN Horn
IGN Ignition – main
LT TRLR STOP/TRN Left trailer stoplamp/Turn signal lamp
PRK LAMP Parking lamps
PWR/TRN Powertrain
RR DEFOG Rear window defogger
RT LO BEAM Right low-beam headlamp
RT TRLR STOP/TRN Right trailer stoplamp/Turn signal lamp
STOP LAMP Stoplamps
TRLR BCK/UP Trailer reverse lamps
WPR Windshield wiper
WPR HI Windshield wiper – high speed
Instrument Panel Fuse Block
Instrument Panel Fuse Block Location |
The instrument panel fuse block is under the instrument panel on the passenger side of the vehicle. Pull down on the cover to access the fuse block.
Instrument Panel Fuse Block Diagram - Fuse Side (2014-2017 Model) |
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses Usage
# GMC Non-HID = Low-beam
* GMC Non-HID = High-shutter
* * Chevy = Fog lamps
Fuses Usage
# GMC Non-HID = Low-beam
* GMC Non-HID = High-shutter
* * Chevy = Fog lamps
* * * Buick China = Rear fog lamps
AIRBAG Airbag
AMP Amplifier
BCK UP/STOP Reverse lamps/ Stoplamps
BCM Body control module
CNSTR VENT Canister vent
CTSY Courtesy lamps
DR LCK Door locks
DRL / LO BEAM Daytime running lamps relay/ Low-beam headlamps relay
AIRBAG Airbag
AMP Amplifier
BCK UP/STOP Reverse lamps/ Stoplamps
BCM Body control module
CNSTR VENT Canister vent
CTSY Courtesy lamps
DR LCK Door locks
DRL / LO BEAM Daytime running lamps relay/ Low-beam headlamps relay
DSPLY Display
FRT WSW Front windshield washer
HTD/ COOL SEAT Heated/Cooling seats
HVAC HVAC (Heating, ventilation, and air conditioning)
INADV PWR INT LAMPS Inadvertent power/ Interior light pipe lamps
INFOTMNT/ MSM Infotainment/ Memory seat module
LT TRN SIG Left turn signal lamp
2014-2017 Model - OBS DET/URS Rear park assist/ Side blind zone alert/Forward collision alert/ Universal remote system
2013 Model - RPA/ SBZA/UGDO Rear Park Assist/ Side Blind Zone Alert/Universal Garage Door Opener
PDM Power mirrors/ Liftgate release
PWR MODE Power mode
PWR MIR Power mirrors
RDO Radio
REAR WPR Rear wiper
RT TRN SIG Right turn signal lamp
STR WHL ILLUM Steering wheel illumination
USB CHRG USB charging
PDM Power mirrors/ Liftgate release
PWR MODE Power mode
PWR MIR Power mirrors
RDO Radio
REAR WPR Rear wiper
RT TRN SIG Right turn signal lamp
STR WHL ILLUM Steering wheel illumination
USB CHRG USB charging
Relay Side Panel |
Relays Usage
LT/ PWR/SEAT Left power seat relay
RT/ PWR/SEAT Right power seat relay
PWR/WNDW Power windows relay
PWR/ COLUMN Power steering column relay
L/GATE Liftgate relay
LCK Power lock relay
REAR/WSW Rear window washer relay
UNLCK Power unlock relay
DRL/ LO BEAM Daytime running lamps relay/ Low-beam headlamps relay
LT/UNLCK Left unlock relay
DRL/ LO BEAM Daytime running lamps relay (if equipped)
FOG LAMPS Fog lamps relay
FRT/WSW Front windshield washer relay
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