Chevrolet Trax 2018 Fuse Replacement
Having an electrical issue? It could be a blown fuse — an easy fix you can do yourself.
Follow the steps below to find and replace the fuse:
Step 1: Find the Fuse Box
In your Chevrolet Trax 2018, the interior fuse box is typically located under the dashboard on the driver's side. Some vehicles also have an additional fuse box in the engine compartment. Check your owner's manual or the fuse box cover for the exact location.
Step 2: Identify the Corresponding Fuse
Below is the complete fuse list for your vehicle. Find the circuit that isn't working and note the fuse number and amperage.
Instrument Panel Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| MiniFuses | Spare | |
| 1 | Body Control Module 1 | |
| 2 | Body Control Module 2 | |
| 3 | Body Control Module 3 | |
| 4 | Body Control Module 4 | |
| 5 | Body Control Module 5 | |
| 6 | Body Control Module 6 | |
| 7 | Body Control Module 7 | |
| 8 | Body Control Module 8 | |
| 9 | Discrete Logic Ignition Switch | |
| 10 | Sensing Diagnostic Module Battery | |
| 11 | Data Link Connector | |
| 12 | Heater, Ventilation, and Air Conditioning MDL | |
| 13 | Liftgate Relay | |
| 14 | UPA Module | |
| 15 | Inside Rearview Mirror | |
| 16 | Not Used | |
| 17 | Driver Power Window Switch | |
| 18 | Rain Sensor | |
| 19 | Body Control Module Regulated Voltage Control | |
| 20 | Steering Wheel Switch Backlighting | |
| 21 | A/C Accessory Power Outlet | |
| 22 | Cigar Lighter/DC Accessory Power Outlet | |
| 23 | Spare | |
| 24 | Spare | |
| 25 | Spare | |
| 26 | Automatic Occupant Sensing Display SDM RC | |
| 27 | IPC/Compass Module | |
| 28 | Headlamp Switch/ DC Converter/Clutch Switch | |
| 29 | Spare | |
| 30 | Spare | |
| 31 | IPC Battery | |
| 32 | Radio/Chime | |
| 33 | Display | |
| 34 | OnStar (If Equipped)/VLBS | |
| S/BFuses | Spare | |
| 1 | PTC 1 | |
| 2 | PTC 2 | |
| 3 | Power Window Motor Front | |
| 4 | Power Window Motor Rear | |
| 5 | Logistic Mode Relay | |
| 6 | Spare | |
| 7 | Front Power Windows | |
| 8 | Rear Power Windows | |
| CircuitBreaker | Spare | |
| CB1 | Spare | |
| MidiFuse | Spare | |
| M01 | PTC | |
| Relays | Spare | |
| RLY01 | Accessory/Retained Accessory Power | |
| RLY02 | Liftgate | |
| RLY03 | Spare | |
| RLY04 | Blower Relay | |
| RLY05 | Logistic Mode | |
| MainConnector | Spare | |
| J1 | IEC MAIN PWR CONNECTOR |
Engine Compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Sunroof | |
| 2 | Outside Rearview Mirror Switch | |
| 3 | Canister Vent Solenoid (1 4L Only) | |
| 4 | Not Used | |
| 5 | Electronic Brake Control Module Valve | |
| 6 | Spare | 2013 |
| 7 | Not Used | |
| 8 | Transmission Control Module Battery | |
| 9 | Not Used | |
| 10 | Fuel System Control Module R/C (1.4L Only)/Headlamp Leveling | |
| 11 | Rear Wiper | |
| 12 | Rear Window Defogger | |
| 13 | Not Used | |
| 14 | Outside Rearview Mirror Heater | |
| 15 | Fuel System Control Module Battery (1.4L Only) | |
| 16 | Heated Seat Module | |
| 17 | Transmission Control Module R/C | |
| 18 | Lngine Control Module R/C | |
| 19 | Fuel Pump (1.8L Only) | |
| 20 | Not Used | |
| 21 | Fan Relay (Auxiliary Fuse Block - 1.4LV Fan 3 Relay 85 (1.8L) | |
| 22 | Cold Start Pump (1.8L Only) | |
| 23 | Ignition Coil/lnjectors | |
| 24 | Washer Pump | |
| 25 | Not Used | |
| 26 | Canister Purge Solenoid/Water Valve Solenoid/ Oxygen Sensors -Pre and Post/Turbo Wastegate Solenoid (1.4L)/Turbo Bypass Solenoid (1.4LV IMTV Solenoid (1.8L) | |
| 27 | Not Used | |
| 28 | Spare | 2013 |
| 29 | Engine Control Module Powertrain Ignition 1/Ignition 2 | |
| 30 | Mass Air How Sensor Diesel: O2 SENSOR | |
| 31 | Left High-Beam Headlamp | |
| 32 | Right High-Beam Headlamp | |
| 33 | Engine Control Module Battery | |
| 34 | Horn | |
| 35 | Air Conditioning Compressor Clutch | |
| 36 | Front Fog Lamps | |
| 1 | Electronic Brake Control Module Pump | |
| 2 | Front Wiper | |
| 3 | Blower Motor | |
| 4 | IEC A/C | |
| 5 | Not Used | |
| 6 | Spare | 2013 |
| 7 | Not Used | |
| 8 | Cooling Fan Low/ Mid (1.4L)/Cooling Fan Low (1.8L) | |
| 9 | Cooling Fan High | |
| 10 | Spare | 2013 |
| 11 | Starter Solenoid | |
| RLY2 | Fuel Pump (1.8L Only) | |
| RLY4 | Spare | |
| RLY7 | Starter | |
| RLY1 | Run Crank | |
| RLY3 | Cooling Fan Mid (1.4L Only) | |
| RLY5 | Powertrain Relay | |
| RLY8 | Cooling Fan Low | |
| RLY6 | Cooling Fan High |
Auxiliary Relay Block Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| RLY01 | Electric Vacuum Pump | |
| RLY02 | Cooling Han Control 1 | |
| RLY03 | Cooling Fan Control 2 | |
| RLY04 | Trailer (1.4L Only) |
Luggage Compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| MiniFuses | Spare | |
| 1 | Driver Seat Power Lumbar Switch | |
| 2 | Passenger Seat Power Lumbar Switch | |
| 3 | Amplifier | |
| 4 | Trailer Socket | |
| 5 | All-Wheel Drive Module | |
| 6 | Automatic Occupant Sensing Module | |
| 7 | Spare/LPG Module Battery | |
| 8 | Trailer Parking Lamps | |
| 9 | Spare | |
| 10 | Spare/Side Blind Zone Alert Module | |
| 11 | Trailer Module | |
| 12 | Nav Dock | |
| 13 | Heated Steering Wheel | |
| 14 | Trailer Socket | |
| 15 | EVP Switch | |
| 16 | Water In Fuel Sensor | |
| 17 | Inside Rearview Mirror/Regulated Voltage Control | |
| 18 | Spare/LPG Module Run/Crank | |
| S/BFuses | Spare | |
| 1 | Driver Power Seat Switch/Memory Module | |
| 2 | Passenger Power Seat Switch | |
| 3 | Trailer Module | |
| 4 | A/C-D/C Inverter | |
| 5 | Battery | |
| 6 | Headlamp Washer | |
| 7 | Spare | |
| 8 | Spare | |
| 9 | Spare | |
| Relays | Spare | |
| 1 | Ignition Relay | |
| 2 | Run Relay |
Step 3: Check the Fuse
Use the plastic fuse puller, typically found in the fuse box, to remove the fuse. Hold it up to a light source. If the metal filament inside is broken or charred, the fuse is bad and needs to be replaced.
Step 4: How to Get a Replacement
You can buy a replacement fuse at any auto parts store. Make sure you match the **amperage (A)** and **physical size** of the fuse exactly. For example, if you need a 20A fuse, get a 20A fuse.
Step 5: Replace the Fuse
Gently press the new fuse into the empty slot. You should feel a slight click when it's securely in place. Test the affected circuit to confirm it's working again.
What Now?
Fuse Was Blown — What to Buy
Ask at any auto parts store (AutoZone, O'Reilly, Advance Auto) for a blade fuse with the same amperage printed on the old one (e.g., 10A, 15A, 20A). Also match the physical size — mini (most modern cars), standard, or maxi. Replacement fuses cost under $5 and most stores sell assorted packs.
Fuse Looks Fine — Other Causes
If the fuse is intact, the problem isn't a blown fuse. Common alternatives include a bad relay (a click-sized electrical switch), a faulty wiring connection, or a failed component (motor, switch, module). At this point, a mechanic's diagnostic is the most reliable next step.
Frequently Asked Questions
What happens if I put in the wrong amperage fuse?
Higher amperage fuses won't protect the circuit and can cause wiring damage or fire. Lower amperage fuses will blow again immediately. Always match the exact amperage.
Why does my fuse keep blowing?
A repeatedly blown fuse indicates an underlying short circuit or overload. Replacing it again won't fix the root cause — consult a mechanic.
Do I need any tools?
Most cars come with a plastic fuse puller in the fuse box lid. If not, fine-tip needle-nose pliers work. A small flashlight helps.
How do I know what size fuse to buy?
Match the amperage printed on the old fuse (e.g., 10A, 15A, 20A) and the physical blade size (mini, standard, maxi). Auto parts stores carry assorted packs.