Jonathan Yarden Mar 25, 2021 · 5 min. read
In this article you will find a description of fuses and relays Chevrolet,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2017
Engine Compartment Fuse Block
The underhood fuse block is located in the engine compartment, on the passenger side of the vehicle.
| Fuses | Description |
| A/C CLUTCH | A/C clutch |
| ABS MTR | ABS motor |
| AIRBAG | Airbag System |
| AUX POWER | Auxiliary Power |
| AUX VAC PUMP | Auxiliary Vacuum Pump |
| AWD | 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 | Fuel pump power module |
| HORN | Horn |
| HTD MIR | Heated exterior rearview mirror |
| HTD STR WHL | Heated Steering Wheel |
| HUMIDITY/MAF | Humidity sensor/MAF senso |
| HVAC BLWR | HVAC 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 | — |
| STOP LAMPS | Stoplamps |
| STRTR | Starter |
| TCM | Transmission control module |
| TRANS | Transmission |
| TRLR BCK/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 | A/C 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 | Low-beam HID 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 | Stop Lamps |
| TRLR BCK/UP | Trailer reverse lamps |
| WPR | Windshield Wiper |
| WPR HI | Windshield wiper – high speed |
Instrument Panel Fuse Block
The instrument panel fuse block is located under the instrument panel on the passenger side of the vehicle.
| Fuses | Description |
| # | GMC NON HID = Lo Beam |
| * | GMC NON HID = High Shutter |
| ** | Chevy = Fog Lamps |
| *** | Buick China = Rear Fog Lamp |
| AIRBAG | Airbag |
| AMP | Amplifier |
| BCK UP/STOP | Back-up Lamp/Stoplamp |
| 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 |
| INADV PWR INT LAMPS | Inadvertent power/Interior light pipe lamps |
| INFOTMNT/MSM | Infotainment/Memory Seat Module |
| LT TRN SIG | Left turn signal lamp |
| OBS DET/URS | Rear park assist/Side blind zone alert/Forward collision alert/ Universal remote system |
| PDM | Power mirrors/Liftgate release |
| PWR MODE | Power Mode |
| PWR MIR | Power Mirrors |
| RDO | Radio |
| REAR WPR | Rear Wiper |
| RT TRN SIG | Passenger Side Turn Signal |
| STR WHL ILLUM | Steering Wheel Illumination |
| USB CHRG | USB Charging |
| Relays | Description |
| 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 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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