2023 Chevrolet Trailblazer Fuses And Fuse Box | How To Check For a Blown Fuse
Like any contemporary car, the 2023 Chevrolet Trailblazer is powered by an intricate electrical system that powers a number of parts and accessories. It is crucial to know how to examine the fuse box of these systems for blown fuses in order to guarantee their smooth functioning. Fuses are safety mechanisms that, in the event of an electrical overload or short circuit, interrupt the circuit to shield linked components from harm. In this introduction, we will discuss the significance of understanding how to check for blown fuses in your 2023 Chevrolet Trailblazer. By doing so, you can ensure that your vehicle operates effectively and dependably by rapidly troubleshooting and resolving electrical difficulties.
Electrical System
Electrical System Overload
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.
Replacing a Blown Fuse
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Turn off the vehicle.
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Locate the fuse puller in the engine compartment fuse block.
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Use the fuse puller to remove the fuse from the top or side, as shown above.
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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.
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Insert the replacement fuse into the empty slot of the blown fuse.
At the next opportunity, see your dealer to replace the blown fuse.
Headlamp Wiring
An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.
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.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Type 1 Fuse Block
| Micro Fuses | Usage |
| F02 | CLSTR |
| F03 | N/A |
| F06 | OSRVM DEFOG |
| 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 |
| F19 | N/A |
| F20 | N/A |
| F22 | TRLR ST/TRN LT – TRLR |
| F24 | ESCL |
| Micro Fuses | Usage |
| 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 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 |
| F42 | HORN |
| F44 | REAR WPR PRK |
| F45 | A/C CLTCH |
| F46 | N/A |
| Micro Fuses | Usage |
| F47 | ECM BATT-GAS ECM BATT-DSL |
| F49 | HDLP HI LH |
| F50 | N/A |
| F51 | HDLP HI RH |
| 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 BATT |
| Spare Fuses | Usage |
| SF01 | SPARE |
| SF02 | SPARE |
| SF03 | SPARE |
| SF04 | SPARE |
| SF05 | SPARE |
| Spare Fuses | Usage |
| SF06 | SPARE |
| ET Fuses | Usage |
| F48 | GLOW PLUG |
| J-Case Fuses | Usage |
| F01 | N/A |
| F05 | N/A |
| F13 | REAR WNDW DEFOG |
| F21 | E-BOOST PWR1 |
| F23 | STRTR PINION |
| F59 | N/A |
| F62 | FUEL HTR DSL |
| F63 | N/A |
| M-case Fuses | Usage |
| F04 | FRT WPR |
| F30 | STRTR SOL |
| F37 | AUX OIL PUMP |
| F39 | N/A |
| M-case Fuses | Usage |
| F43 | PWR WNDW 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 |
| K07 | A/C CNTRL |
| K10 | N/A |
| Ultra Micro Relays |
Usage |
| K11 | N/A |
Type 2 Fuse Block
| Micro Fuses | Usage |
| F02 | CLSTR |
| F03 | N/A |
| F06 | OSRVM DEFOG |
| F07 | L/GATE RELSE |
| F08 | N/A |
| F09 | VENT SEAT |
| F10 | N/A |
| F11 | N/A |
| F12 | N/A |
| F14 | ISRVM REAR VIEW CAMERA |
| F15 | N/A |
| F16 | HDLP LVL |
| F17 | N/A |
| F18 | FTZM |
| F19 | N/A |
| Micro Fuses | Usage |
| 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 |
| F28 | AERO SH |
| F29 | AHL AFL MDL |
| F31 | ECM PT2 |
| F32 | ENG COMP2 |
| F33 | RVC |
| F34 | FRT FOG LP |
| F35 | ENG COMP1 |
| F36 | ECM PT1 |
| F38 | TRLR PRK LAMP – TRLR |
| F40 | N/A |
| F41 | REAR WPR |
| F42 | HORN |
| F44 | REAR WPR PRK |
| Micro Fuses | Usage |
| F45 | A/C CLTCH |
| F46 | N/A |
| F47 | ECM BATT-GAS |
| F49 | HDLP HI LH |
| F50 | N/A |
| F51 | HDLP HI RH |
| F52 | TRLR ST/TRN RT – TRLR |
| F53 | AUX WATER PUMP |
| F54 | PEPS |
| F56 | CNSTR VENT SOL-GAS/DEFC |
| F57 | N/A |
| F58 | TCM BATT |
| Spare Fuses | Usage |
| SF01 | SPARE |
| SF02 | SPARE |
| SF03 | SPARE |
| SF04 | SPARE |
| SF05 | SPARE |
| Spare Fuses | Usage |
| SF06 | SPARE |
| ET Fuses | Usage |
| F48 | N/A |
| J-Case Fuses | Usage |
| F01 | N/A |
| F05 | N/A |
| F13 | REAR WNDW DEFOG |
| F21 | E-BOOST PWR1 |
| F23 | STRTR PINION |
| F59 | N/A |
| F62 | N/A |
| F63 | N/A |
| M-Case Fuses | Usage |
| F04 | FRT WPR |
| F30 | STRTR SOL |
| F37 | AUX OIL PUMP |
| F39 | N/A |
| M-Case Fuses | Usage |
| F43 | PWR WNDW RT |
| F55 | PWR WNDW LT |
| F60 | N/A |
| F61 | N/A |
| Mini Relays | Usage |
| K03 | RUN/CRNK |
| K04 | REAR DEFOG |
| K06 | STRTR PINION |
| K08 | PT RLY |
| K09 | N/A |
| HC Micro Relays |
Usage |
| K01 | N/A |
| K02 | N/A |
| K05 | STRTR SOL |
| 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.
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.
| 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 |
| Fuse | Usage |
| F20 | CLOCK SPRING |
| F21 | OCC SEN |
| F22 | DLC |
| F23 | SDM |
| 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 |
| 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 |
| Fuse | Usage |
| 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.
| Fuse | Usage |
| F01 | N/A |
| F02 | RDCM ELEC |
| Fuse | Usage |
| F03 | N/A |
| F04 | N/A |
| F05 | DC/AC INVERTER |
| F06 | N/A |
| F07 | RDCM |
| F08 | RR SEAT HEAT PWR1 |
| 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 |
FAQs
The fuse box in a 2023 Chevrolet Trailblazer is typically located in the interior cabin, usually under the dashboard or near the driver’s side kick panel.
The Trailblazer may have one or more fuse boxes, with the primary one located inside the cabin.
Fuses protect the Trailblazer’s electrical components by interrupting the circuit when an electrical overload or short circuit occurs, preventing damage.
A blown fuse often has a visibly broken or melted filament inside. You can also use a multimeter to check for continuity.
To check for a blown fuse, you may need a flashlight, a fuse puller, and a replacement fuse of the same amperage rating.
Yes, replacement fuses are typically available at auto parts stores or can be purchased online.
Fuses come in various amperage ratings, indicating the maximum amount of current they can handle before breaking the circuit. Always replace a blown fuse with one of the same amperage rating.
Insert the fuse puller over the blown fuse, squeeze the handles together, and gently pull the fuse out of its socket.
It’s not recommended to use a higher amperage fuse, as it can lead to electrical system damage or fires. Always replace with the same amperage fuse.
If a replacement fuse continues to blow, it indicates an underlying electrical problem that should be diagnosed and repaired by a professional mechanic.
After replacing a blown fuse with a new one, the circuit should automatically reset, restoring power to the affected electrical component.
For safety, it’s generally a good practice to disconnect the vehicle’s battery when working with fuses to prevent accidental electrical shorts.
Yes, you can often find a fuse diagram in your vehicle’s owner’s manual or by searching online for a Trailblazer fuse box diagram specific to your model year.
Common electrical issues can vary, but blown fuses can affect various electrical components. Other issues may include malfunctioning accessories or lighting problems.
To prevent blown fuses, avoid overloading electrical circuits, ensure all accessories are properly connected, and periodically inspect your vehicle’s electrical systems.
Useful Link
View Full PDF: 2023 Chevrolet Trailblzaer User Guide
2023 CHEVROLET TRAILBLAZER Specs, Price, Features, Mileage (Brochure)