Chevrolet Blazer 2021 Fuse Box Info
Passenger compartment fuse box location:
The instrument panel fuse box is inside the center console on the passenger side of the vehicle.
Engine compartment fuse box location:
Luggage compartment fuse box location:
The rear compartment fuse box is behind a trim panel on the driver side of the rear storage compartment.
Fuse Box Diagram | Layout
Passenger compartment fuse box::
| Fuse/Relay N° | Functions |
| Fuses | |
| 1 | Body control module 6 |
| 2 | Diagnostic link/ Central gateway module |
| 3 | Electric steering column lock |
| 4 | - |
| 5 | - |
| 6 | Heating, ventilation, and air conditioning |
| 7 | Body control module 3 |
| 8 | - |
| 9 | Right front heated seat |
| 10 | Airbag/Seatbelt |
| 11 | - |
| 12 | Amplifier/Noise control module |
| 13 | Body control module 7 |
| 14 | Left front heated seat |
| 15 | - |
| 16 | Sunroof |
| 17 | - |
| 18 | Instrument cluster |
| 19 | Body control module 1 |
| 20 | Rear seat entertainment |
| 21 | Body control module 4 |
| 22 | Infotainment USB data/Aux jack |
| 23 | Body control module 2 |
| 24 | USB charger/ Wireless charging |
| 25 | Park assist |
| 26 | Communications integration module |
| 27 | - |
| 28 | Heating, ventilation, and air conditioning/ Information communication system display |
| 29 | Radio |
| 30 | Steering wheel adjustment controls |
| 31 | Electric brake control module electric brake booster |
| 32 | DC AC inverter |
| 33 | Driver power seat |
| 34 | Passenger power seat |
| 35 | Battery IEC 1 feed |
| 36 | Electric power steering |
| 37 | Rear seat entertainment/USB charge/Wireless charging module/ Auxiliary power outlet/ Lighter |
| 38 | Body control module 8 |
| 39 | - |
| CB/Minifuse | |
| 40 | - |
| 41 | - |
| 42 | Auxiliary power outlet (CB)/Lighter (minifuse) |
Engine compartment fuse box:
| Fuse/Relay N° | Functions |
| Fuses | |
| 1 | Antilock brake system pump |
| 2 | Starter 1 |
| 3 | DC DC transformer 1 |
| 4 | - |
| 5 | DC DC transformer 2 |
| 6 | - |
| 7 | Front blower |
| 8 | Starter 3 |
| 9 | - |
| 10 | - |
| 11 | - |
| 12 | Front wiper |
| 13 | Starter 2 |
| 14 | - |
| 15 | Rear wiper |
| 16 | - |
| 17 | - |
| 18 | - |
| 19 | - |
| 20 | - |
| 21 | - |
| 22 | Electronic brake control module |
| 23 | Parking/Trailer lamps |
| 24 | Right trailer stoplamp/Turnlamp |
| 25 | Steering column lock |
| 26 | - |
| 27 | Left trailer stoplamp/Turnlamp |
| 28 | - |
| 29 | - |
| 30 | Washer pump |
| 31 | Spare/Right low-beam headlamp |
| 32 | Left low-beam headlamp |
| 33 | High-beam headlamp shutter/ Fog lamps |
| 34 | Horn |
| 35 | - |
| 36 | Right low-beam/ Left high-beam headlamp |
| 37 | Spare/Right high-beam headlamp |
| 38 | Automatic headlamp leveling motor |
| 39 | Transmission control module |
| 40 | Left rear bus electrical center/DC DC ignition |
| 41 | Instrument cluster |
| 42 | Heating, ventilation, and air conditioning/ Central gateway module run/crank |
| 43 | Reflective light alert display |
| 44 | Electronic brake control module/ Electric brake booster/Run/crank |
| 45 | - |
| 46 | - |
| 47 | - |
| 48 | - |
| 49 | Interior rearview mirror |
| 50 | Fuel system control module/Fuel tank zone module run/ crank |
| 51 | Heated steering wheel |
| 52 | Air conditioning clutch |
| 53 | Coolant pump |
| 54 | - |
| 55 | - |
| 56 | - |
| 57 | Engine control module/Ignition |
| 58 | Transmission control module/ Ignition |
| 59 | Engine control module battery |
| 60 | - |
| 61 | O2 sensor 1/ Aeroshutter/Mass air flow sensor |
| 62 | Engine control module – odd |
| 63 | O2 sensor 2 |
| 64 | Engine control module – even |
| 65 | Engine control module powertrain 1 |
| 66 | Engine control module powertrain 2 |
| 67 | Engine control module powertrain 3 |
| 68 | - |
| 69 | - |
| 70 | - |
| 71 | - |
| 72 | - |
| 73 | - |
| 74 | - |
| 75 | - |
| 76 | - |
| 77 | - |
| Relays | |
| K1 | Starter 1 |
| K2 | Run/Crank |
| K3 | Starter 3 |
| K4 | - |
| K5 | - |
| K6 | - |
| K7 | Engine control module |
| K8 | Air conditioning |
| K9 | - |
| K10 | Starter 2 |
Luggage compartment fuse box:
| Fuse/Relay N° | Functions |
| Fuses | |
| 1 | - |
| 2 | Trailer battery |
| 3 | - |
| 4 | Rear blower |
| 5 | Rear drive control 1 |
| 6 | - |
| 7 | Right window |
| 8 | Rear window defogger |
| 9 | Left window |
| 10 | - |
| 11 | Trailer reverse |
| 12 | - |
| 13 | - |
| 14 | - |
| 15 | - |
| 16 | - |
| 17 | - |
| 18 | - |
| 19 | - |
| 20 | Glove box door/ Trailer stoplamp |
| 21 | - |
| 22 | - |
| 23 | - |
| 24 | - |
| 25 | - |
| 26 | Trailer brake |
| 27 | Driver ventilated seat/Lumbar |
| 28 | Passive entry/ Passive start |
| 29 | - |
| 30 | Canister vent |
| 31 | - |
| 32 | Heated mirrors |
| 33 | - |
| 34 | Liftgate module |
| 35 | Fuel system control module/Fuel tank zone module |
| 36 | Passenger ventilated seat/ Lumbar |
| 37 | - |
| 38 | Window module |
| 39 | Rear closure |
| 40 | Memory seat module |
| 41 | Automatic occupancy sensor |
| 42 | - |
| 43 | - |
| 44 | - |
| 45 | Liftgate motor |
| 46 | Rear heated seats |
| 47 | - |
| 48 | - |
| 49 | - |
| 50 | - |
| 51 | - |
| 52 | Rear drive control 2/ Semi-active dampening system module |
| 53 | Video |
| 54 | External object calculating/Side blind zone alert |
| 55 | - |
| 56 | Universal remote/ Rain sensor |
| 57 | Alarm overhead console/Theft deterrent |
| Circuit Breakers | |
| CB1 | - |
| CB2 | - |
| CB3 | Rear auxiliary power outlet |
| Relays | |
| K1 | - |
| K2 | - |
