Fuse Box: 2021 - 2022 Chevrolet Trailblazer Fuse Box Diagram

2022 Chevrolet Trailblazer

Fuses and Relays

The vehicle has fuses and circuit breakers to protect against an electrical system overload.
When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed.
This greatly reduces the chance of circuit overload and fire caused by electrical problems.
Fuses and circuit breakers protect power devices in the vehicle.
If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.
To check a fuse, look at the band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a fuse of the identical size and rating.

Blown Fuse

Replacing a Blown Fuse

1. Turn off the vehicle.
2. Locate the Fuse Puller in the engine compartment fuse block.
3. Use the Fuse Puller to remove the fuse from the top or side, as shown above.

Fuse Puller

4. If the fuse must be replaced immediately, borrow a replacement fuse with the same amperage from the fuse block. Choose a vehicle feature that is not needed to safely operate the vehicle.
Repeat Steps 2-3.
5. Insert the replacement fuse into the empty slot of the blown fuse.
At the next opportunity, see your dealer to replace the blown fuse.

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.

Engine Compartment Fuse Block

To remove the fuse block cover, squeeze the clip and lift it up.

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

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

Micro Fuses ... Usage
F02 CLSTR
F03 N/A
F06 OSRVM DEFOG (Exterior Rear view Mirror Defogger)
F07 L/GATE RELSE
F08 AHL AFL MTR1
F09 VENT SEAT
F10 N/A
F11 AHL AFL MTR2
F12 N/A
F14 ISRVM REAR VIEW CAMERA
F15 DEFC MDL RUN/CRNK
F16 HDLP LVL
F17 N/A-DSL
F18 FTZM (Fuel Tank Zone Module)
F19 N/A
F20 N/A
F22 TRLR ST/TRN LT - TRLR
F24 ESCL
F25 ECM TCM RUN/CRNK
F26 FRT/REAR WSW PUMP
F27 IGN COIL-GAS ECM PT3-DSL
F28 AERO SH
F29 AHL AFL MDL
F31 ECM (Engine Control Module) PT2
F32 ENG COMP2
F33 RVC
F34 FRT FOG LP
F35 ENG COMP1
F36 ECM PT1
F38 TRLR PRK LAMP - TRLR
F40 AUX WATER PUMP
F41 REAR WPR (Rear Wipper)
F42 HORN
F44 REAR WPR PRK
F45 A/C CLTCH
F46 N/A
F47 ECM BATT-GAS / ECM BATT-DSL
F49 HDLP HI LH (Headlamp High Left Hand)
F50 N/A
F51 HDLP HI RH (Headlamp High Right Hand)
F52 NOX SOOT SNSR -DSL TRLR ST/TRN RT - TRLR
F53 N/A
F54 PEPS

F56 CNSTR VENT SOL-GAS / DEFC MDL-DSL
F57 DEFC MDL-DSL
F58 TCM (Transmission Control Module) BATT

Spare Fuses ... Usage
SF01 SPARE
SF02 SPARE
SF03 SPARE
SF04 SPARE
SF05 SPARE
SF06 SPARE

ET Fuses ... Usage
F48 GLOW PLUG

J-Case Fuses ... Usage
F01 N/A
F05 N/A
F13 REAR WNDW DEFOG (Rear Window Defogger)
F21 E-BOOST PWR1
F23 STRTR PINION
F59 N/A
F62 FUEL HTR DSL
F63 N/A

M-case Fuses ... Usage
F04 FRT WPR (Front Wippers)
F30 STRTR (Starter) SOL
F37 AUX OIL PUMP
F39 N/A
F43 PWR WNDW (Power Window) RT
F55 PWR WNDW LT
F60 DEF HTR
F61 N/A

Mini Relays ... Usage
K03 RUN/CRNK
K04 REAR DEFOG
K06 STRTR PINION
K08 PT RLY
K09 FUEL HTR DSL

HC Micro Relays ... Usage
K01 N/A
K02 N/A
K05 STRTR SOL (Starter Solenoid)
K07 A/C CNTRL
K10 N/A

Ultra Micro Relays ... Usage
K11 N/A

Instrument Panel Fuse Block

The instrument panel fuse block is on the underside of the driver side instrument panel. To access the fuses, remove the storage compartment.

Removing the storage compartment

To remove the storage compartment, use the hole at the top to pull the compartment
outward from the instrument panel.

Warning

Be careful of injuries to your fingers and nails when using the holes to remove the storage compartment.

Instrument Fuse Panel Diagram

Fuse ... Usage
F01 LUMBAR
F02 SUNROOF
F03 VBAT_3
F04 VBAT_7
F05 VBAT_6
F06 AUTO HVAC
F07 CGM
F08 ST_WHL_HTR
F09 DISPLAY
F10 RADIO
F11 ONSTAR (ERA)
F12 PARK_ASSIST
F13 MAN. HVAC
F14 WL CHARGER
F15 VBAT_2
F16 VBAT_1
F17 SWC BKLT
F18 N/A
F19 N/A
F20 CLOCK SPRING
F21 OCC SEN
F22 DLC ( Data Link Connector)
F23 SDM (Safety Diagnosis Module)
F24 IGN_SW/ESCL
F25 PWR L-GATE MDL
F26 SEC FUSE-2
F27 PWR SEAT CO-DR
F28 VBAT_8
F29 DC-DC AT
F30 PWR L-GATE MDL
F31 OSRVM (Exterior Rear view Mirror)
F32 FRT HS PWR-1
F33 VBAT_4
F34 FRT HS PWR-2
F35 AMPLIFIER
F36 ONSTAR (TCP)
F37 PWR SEAT DR
F38 DC-DC_400W
F39 SEC FUSE-1
F40 HVAC_BLOWER

Circuit Breaker ... Usage
CB1 N/A
CB2 APO

Relay .. Usage
K01 i-RAP_ACC
K02 RUN
K03 LOGISTICS
K04 N/A
K05 N/A
K06 N/A

Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the driver side of the rear compartment. To access the fuses, remove the cover.

Rear Compartment Fuse Panel Diagram

Fuse ... Usage
F01 N/A
F02 RDCM ELEC
F03 N/A
F04 N/A
F05 DC/AC INVERTER
F06 N/A
F07 RDCM
F08 RR SEAT HEAT PWR1 (Rear Seat Heat Power 1)
F09 N/A
F10 RR SEAT HEAT PWR2
F11 N/A
F12 N/A
F13 N/A
F14 N/A
F15 N/A
F16 N/A
F17 N/A
F18 N/A
F19 N/A
F20 N/A
F21 N/A

Circuit Breakers ... Usage
CB1 N/A

Relays ... Usage
K01 N/A
K02 N/A
K03 N/A
K04 N/A
K05 N/A

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2021 - 2022 Chevrolet Trailblazer Fuse Box Diagram