Chevrolet Colorado 2021 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 Colorado 2021, 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 | Run/Crank relay control/ Horn switch/Dome lamps | |
| F2 | Spare | |
| F3 | Spare | |
| F4 | Steering wheel controls | |
| F5 | Left headlamp low beam/ Front left park lamp/Left front side marker/Left rear side marker | |
| F6 | Spare | |
| F7 | Spare | |
| F8 | Mirror window module | |
| F9 | Instrument panel cluster | |
| F10 | Spare | |
| F11 | Door latches | |
| F12 | Spare | |
| F13 | OnStar/HVAC | |
| F14 | Radio/Infotainment | |
| F15 | RAP accessory relay control/Shifter control/ Shifter solenoid/Wiper relay control/Washer pump relay control/Rear defog relay control | |
| F16 | CGM (Communication gateway module) | |
| F17 | Left rear side marker/ Right front turn lamp/Left rear stop lamp/Left front turn lamp/Right rear stop lamp | |
| F18 | Airbag/Sensing and diagnostic module/ Automatic occupant sensing module | |
| F19 | Spare | |
| F20 | Amplifier | |
| F21 | Spare | |
| F22 | Spare | |
| F23 | Data link connector/USB front | |
| F24 | Spare | 2019 |
| F25 | Driver door latch | |
| F26 | Spare | |
| F27 | Spare | |
| F28 | Instrument panel cluster and automatic sensing display | |
| F29 | Rear vision camera/ Transfer case control module (4WD)/lnside rear view | |
| F30 | Spare | |
| F31 | Front camera/Rear park assist | |
| F32 | Steering wheel controls backlighting | |
| F33 | Spare | 2019 |
| F34 | Spare | 2019 |
| F35 | Park/Reverse/Neutral/ Drive/Low display/ Wireless charging module/USB rear | |
| F36 | Discrete logic ignition sensor | |
| F37 | Spare | |
| F38 | _ | |
| F39 | Auxiliary power outlet 2 | |
| F40 | Spare | |
| F41 | Auxiliary power outlet 1/ Cigarette lighter | |
| F42 | Left power window | |
| F43 | Driver power seat | |
| F44 | Auxiliary power outlet | |
| F45 | Right power window | |
| F46 | Passenger power seat | |
| Relays | Spare | |
| K1 | Retained accessory power | |
| K2 | Run/Crank | |
| K3 | Spare |
Engine Compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| F1 | Traction control module power | |
| F2 | Engine control module power | |
| F3 | Air conditioning clutch | |
| F4 | Spare | |
| F5 | Engine control module/ Integrated chassis control module/Fuel pump power module | |
| F6 | Wipers | |
| F7 | Cargo lamp/Bed lighting | |
| F8 | Fuel injectors-even | |
| F9 | Fuel injectors-odd | |
| F10 | Engine control module ignition 1 | |
| F11 | Oxygen/Mass air flow/ Humidity/lnduction air temperature/Throttle inlet pressure sensors | |
| F12 | Starter | |
| F13 | Traction control module | |
| F14 | Spare | |
| F15 | Spare | |
| F16 | Spare | |
| F17 | Front axle actuator | |
| F18 | Spare | |
| F19 | Aeroshutters | |
| F20 | Spare | |
| F21 | Front blower | |
| F22 | Antilock brake system valves | |
| F23 | Spare | |
| F24 | Trailer | |
| F25 | Transfer case electronic control | |
| F26 | Antilock brake system pump | |
| F27 | Spare | 2019 |
| F28 | Rear window defogger | |
| F29 | Spare | |
| F30 | Driver heated seat | |
| F31 | Spare | |
| F32 | Passenger heated seat | |
| F33 | Right headlamp low beam/FRT right park lamp/Right front side marker/Right rear side marker | |
| F34 | Fuel pump power module | |
| F35 | Integrated chassis control module | |
| F36 | Center high-mounted stoplamp | |
| F37 | Right high-beam headlamp | |
| F38 | Left high-beam headlamp | |
| F39 | Rear differential lock actuators | |
| F40 | Front differential lock actuators | |
| F41 | Spare | |
| F42 | Spare | |
| F43 | Spare | |
| F44 | Spare | |
| F45 | Vacuum pump | |
| F46 | Engine control module ignition 2 | |
| F47 | Mid park phase lock/ Active fuel management/Engine oil and canister purge solenoid(s)/Oxygen sensor//Engine thermostat heater | |
| F48 | Fog lamps | |
| F49 | Spare | |
| F50 | Trailer parking lamps | |
| F51 | Horn | |
| F52 | Spare | |
| F53 | Spare | |
| F54 | Spare | |
| F55 | Spare | |
| F56 | Washer pump | |
| F57 | Spare | |
| F58 | Spare | |
| F59 | Spare | |
| F60 | Mirrors defogger | |
| F61 | Spare | |
| F62 | Canister vent solenoid | |
| F63 | Spare | |
| F64 | Trailer reverse lamp | |
| F65 | Left trailer stoplamp/ Turn signal lamps | |
| F66 | Right trailer stoplamp/ Turn signal lamps | |
| F67 | Electric power steering | |
| F68 | Spare | |
| F69 | Battery regulated voltage control | |
| F70 | Spare | |
| F71 | Spare | |
| F72 | Spare | |
| F73 | Spare | |
| F74 | Generator | |
| F75 | Spare | |
| Relays | Spare | |
| K1 | Air conditioning clutch | |
| K2 | Starter | |
| K3 | Spare | |
| K4 | Wipers speed | |
| K5 | Wipers control | |
| K6 | Cargo lamp/Bed lighting | |
| K7 | Powertrain | |
| K8 | Spare | |
| K9 | Spare | 2019 |
| K10 | Spare | 2019 |
| K11 | Center high-mounted stoplamp | |
| K12 | Spare | |
| K13 | Vacuum pump | |
| K14 | Trailer parking lamps | |
| K15 | Run/Crank | |
| K16 | Spare | |
| K17 | Rear window/Mirror defogger |
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.