Chevrolet Malibu 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 Malibu 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 |
|---|---|---|
| F1 | Left power windows | 30 |
| F2 | Right power windows | 30 |
| F3 | Spare | |
| F4 | Heating, ventilation, and air conditioning blower | 40 |
| F5 | Body control module 2 | 15 |
| F6 | Left rear heated seat (2018) | |
| F7 | Right rear heated seat (2018) | |
| F8 | Body control module 3 | 15 |
| F9 | Engine control module/Rear battery | 5 |
| F10 | Body control module 2 (w/ Stop/Start option) | 15 |
| F11 | Spare | |
| F12 | Spare | |
| F13 | Spare | |
| F14 | Spare | |
| F15 | Transmission control module ( w/ Stop/Start option) | 20 |
| F16 | Amplifier | 30 |
| F17 | Seat power lumbar | |
| F18 | OnStar | |
| F19 | Spare | |
| F20 | Body control module 1 | 15 |
| F21 | Body control module 4 | 15 |
| F22 | Spare | |
| F23 | Electric steering column lock (China and Russia only) | 10 |
| F24 | Airbag | 10 |
| F25 | Data link connector | 7.5 |
| F26 | Spare | |
| F27 | AC DC inverter | 30 |
| F28 | Spare | |
| F29 | Body control module 8 | 20 |
| F30 | Overhead console | 10 |
| F31 | Steering wheel controls | 2 |
| F32 | Spare | |
| F33 | Heating, ventilation, and air conditioning | 10 |
| F34 | Gateway (2018) | |
| F35 | Spare | |
| F36 | Wireless charger | 5 |
| F37 | Front accessory power outlets/ Cigar lighter (China only) | 20 |
| F38 | OnStar | 5 |
| F39 | Display | 7.5 |
| F40 | Obstacle detection | 10 |
| F41 | Body control module 1 (w/ Stop/Start option) | 15 |
| F42 | Radio | 15 |
| CB1 | Spare | |
| CB2 | Console accessory power outlet | 15 |
| Relays | Spare | |
| K1 | Spare | |
| K2 | Retained accessory power relay | |
| K3 | Spare | |
| K4 | Spare | |
| K5 | Spare |
Engine compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Spare | |
| 2 | Spare | |
| 3 | Antilock brake system pump | |
| 4 | AC DC inverter | |
| 6 | Trunk | |
| 7 | Anti-theft warning siren/Horn | |
| 8 | Window/Mirror/Seats | |
| 9 | Electric brake boost | |
| 10 | Left seat lumbar (2017)/AOS/Airbag–HEV | |
| 11 | DC DC battery 1 | |
| 12 | Rear defogger | |
| 13 | Heated mirror | |
| 14 | Spare | |
| 15 | Passive entry/Passive start | |
| 16 | Front wiper | |
| 17 | Passenger power seat | |
| 18 | Antilock brake system valve | |
| 19 | Driver power seat | |
| 21 | Sunroof | |
| 22 | Parking lamp | |
| 23 | Active headlamp leveling | |
| 24 | Spare | |
| 26 | Transmission control module/Ignition | |
| 27 | Instrument panel body/Ignition | |
| 28 | Fuel pump (2017) | |
| 29 | Regulated voltage control/Ventilation | |
| 30 | Malfunction indicator lamp/SS | |
| 32 | CVS | |
| 33 | Front heated seat | |
| 34 | Rear heated seat (2017)/BSM/ESS fan | |
| 35 | Body control module 6/Body control module 7 | |
| 37 | Fuel module | |
| 38 | Spare | |
| 39 | Spare | |
| 40 | Steering column lock | |
| 41 | Spare | |
| 43 | Heated steering wheel | |
| 44 | Active headlamp leveling | |
| 45 | Spare | |
| 46 | Engine control module/Ignition | |
| 47 | Spare | |
| 48 | Electric brake boost–HEV | |
| 49 | DC DC battery 2 | |
| 50 | Spare | |
| 51 | Spare | |
| 52 | Spare | |
| 53 | Spare | |
| 54 | Spare | |
| 55 | Spare | |
| 56 | Starter motor (2018) | |
| 57 | Transmission auxiliary pump | |
| 58 | Spare | |
| 59 | High-beam headlamps | |
| 60 | Cooling fan | |
| 61 | Spare | |
| 62 | Spare | |
| 63 | Spare | |
| 65 | Air conditioning–HEV | |
| 67 | Spare | |
| 68 | Spare | |
| 69 | Right low-beam HID headlamp | |
| 70 | Left low-beam HID headlamp | |
| 72 | Starter pinion | |
| 74 | Starter motor (2017) | |
| 75 | Engine control module | |
| 76 | Powertrain off engine | |
| 77 | Spare | |
| 78 | Horn | |
| 79 | Washer pump | |
| 81 | Transmission control module/Engine control module | |
| 82 | Spare | |
| 83 | Ignition coil | |
| 84 | Powertrain on engine | |
| 85 | Engine control module switch 2 | |
| 86 | Engine control module switch 1 | |
| 87 | SAIR pump | |
| 88 | Aeroshutter | |
| 89 | Headlamp washer | |
| 91 | Spare | |
| 92 | Traction power inverter module/Motor generator unit pump | |
| 93 | Active headlamp leveling | |
| 95 | SAIR solenoid | |
| 96 | Fuel heater | |
| 97 | Spare | |
| 99 | Coolant pump | |
| Relays | Spare | |
| 4 | AC DC inverter | |
| 20 | Rear defogger | |
| 25 | Front wiper control | |
| 31 | Run/Crank | |
| 37 | Front wiper speed | |
| 42 | Transmission auxiliary pump | |
| 64 | Spare | 2017 |
| 68 | Powertrain | |
| 71 | Low-beam HID headlamps | |
| 73 | Spare | 2017 |
| 80 | Starter pinion/Starter motor | |
| 90 | SAI reaction solenoid | |
| 94 | Headlamp washer | |
| 98 | SAI reaction pump |
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.