How to Replace Low & High Beam Headlight Bulbs on a 2018 Toyota C-HR
Step-by-step DIY guide with tools, parts list, safety tips, and engine-bay or wheel-well access methods
How to Replace Low & High Beam Headlight Bulbs on a 2018 Toyota C-HR
Step-by-step DIY guide with tools, parts list, safety tips, and engine-bay or wheel-well access methods


đź”§ C-HR - Headlight Bulb Replacement
On your C-HR, replacing “headlight bulbs” usually means the halogen low and/or high beam bulbs behind each headlamp housing. The job is done from behind the headlight; on one side you may need to move a duct or filler neck for hand room.
Difficulty Level: Beginner | Estimated Time: 0.5-1.5 hours
⚠️ Safety & Precautions
- ⚠️ Turn the lights OFF and let bulbs cool 10 minutes before touching.
- ⚠️ Don’t touch the new bulb glass with bare fingers (skin oils shorten bulb life).
- ⚠️ If you raise the vehicle for wheel-well access, support it with jack stands—never rely on a jack alone.
- ⚠️ Battery disconnect is not required, but keep the headlight switch OFF during the repair.
đź”§ Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Flashlight
- Trim clip removal tool
- 10mm socket
- 1/4" ratchet
- 6" socket extension
- Flat-blade screwdriver
- Floor jack (rated 2-ton minimum)
- Jack stands (pair, rated 2-ton minimum)
- Wheel chocks
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Low beam headlight bulbs - Replace in pairs - Qty: 2
- High beam headlight bulbs - Replace in pairs - Qty: 2
- Headlamp rear dust caps (if damaged) - Qty: 2
đź“‹ Before You Begin
- Park on level ground, shift to Park, and set the parking brake.
- Open the hood and make sure the headlight switch is OFF.
- Lay out the new bulbs and keep them in the package until install.
- If access is too tight from the engine bay, plan to use the wheel-well method (you’ll raise the front corner and pull back the fender liner).
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm which bulbs you’re replacing
- Use your flashlight and look behind each headlight for the bulb sockets.
- If your C-HR has a sealed LED headlamp (no removable bulb socket), the “bulb” is not serviceable separately and the headlamp assembly must be replaced (shop-level job). If you see twist-lock bulb sockets, continue.
- If unsure, tell me: low beam, high beam, or both.
Step 2: Make room behind the headlight (engine-bay access)
- On the side with tight clearance, remove the intake duct and/or move the washer filler neck as needed.
- Use a trim clip removal tool (a small forked pry tool for plastic clips) and a flat-blade screwdriver to pop up plastic retainers without breaking them.
- If a bracket uses bolts, remove them with a 10mm socket, 1/4" ratchet, and 6" socket extension.
Step 3: Open the headlamp (rear dust cap, if equipped)
- Reach behind the headlight and remove the rear dust cap by hand (most are a twist-off cap).
- Set the cap where it won’t get dirty.
Step 4: Remove the old bulb
- Unplug the bulb connector by pressing the lock tab and pulling straight back (no twisting the wires).
- Remove the bulb by twisting the bulb socket counterclockwise by hand and pulling it straight out.
- Use your flashlight to note how the tabs line up before installing the new bulb.
Step 5: Install the new bulb (no-touch rule)
- Put on nitrile gloves so you don’t touch the bulb glass.
- Insert the new bulb into the housing in the same orientation as the old one.
- Lock it in by twisting clockwise by hand until it stops (snug, not forced).
- Reconnect the electrical connector until it clicks.
Step 6: Reinstall the dust cap and any removed parts
- Reinstall the rear dust cap securely by hand (this keeps moisture out).
- Reinstall any ducts/brackets you moved using the 10mm socket, 1/4" ratchet, and 6" socket extension.
- If you removed plastic clips, press them back in using the trim clip removal tool to align them first.
Step 7: If you can’t reach from the engine bay, use wheel-well access (alternate method)
- Chock the rear wheels with wheel chocks.
- Lift the front corner with a floor jack (rated 2-ton minimum) and support with jack stands (pair, rated 2-ton minimum).
- Use the trim clip removal tool and flat-blade screwdriver to remove fender-liner clips near the headlight area, then pull the liner back for access.
- Repeat Steps 3–6 through the opening, then reinstall the liner clips.
Step 8: Repeat on the other side
- Repeat the same bulb replacement steps for the other headlight so both bulbs match color and brightness.
âś… After Repair
- Turn the headlights ON and verify low beams and high beams work on both sides.
- Walk around the front of your C-HR and confirm both beams match in color and brightness.
- Check that the rear dust caps are fully seated (prevents condensation inside the lens).
đź’° DIY vs Shop Cost
Shop Cost: $120-$300 (parts + labor)
DIY Cost: $30-$120 (parts only)
You Save: $90-$180 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hours.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.

















