How to Replace Both Taillight (3157) Bulbs on a 2016 Chevrolet Express 3500
Step-by-step taillight bulb replacement with required tools/parts, safety tips, and post-repair light testing for 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
How to Replace Both Taillight (3157) Bulbs on a 2016 Chevrolet Express 3500
Step-by-step taillight bulb replacement with required tools/parts, safety tips, and post-repair light testing for 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
đź”§ Express - Taillight Bulb Replacement
You’ll remove each rear taillight housing, twist out the bulb socket, and swap in new bulbs. This restores proper tail/brake light brightness and keeps you legal and safe at night.
Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours
⚠️ Safety & Precautions
- ⚠️ Turn ignition OFF and remove the key before starting.
- ⚠️ If the lights were on, let the bulbs cool 5 minutes (they get hot).
- ⚠️ Don’t touch new bulb glass with bare fingers; oils can shorten bulb life.
- ⚠️ Support the lamp housing so it doesn’t scratch paint when it comes loose.
đź”§ Required Tools
You'll need the following tools for this repair:
- #2 Phillips screwdriver
- Torx T15 screwdriver
- Plastic trim removal tool
- Clean nitrile gloves
- Safety glasses
- Small flashlight
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Rear stop/tail bulb (3157) - Qty: 2
- Dielectric grease - Qty: 1
đź“‹ Before You Begin
- Park on level ground and set the parking brake.
- Open the rear cargo doors to access the taillight screws.
- Lay a towel on the bumper edge.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Remove the left taillight screws
- Open the rear doors and locate the two screws on the inboard edge of the left taillight (the edge closest to the center of the van).
- Use a #2 Phillips screwdriver to remove the screws.
- If your screws are star-shaped instead, use a Torx T15 screwdriver to remove them.
- Set the screws somewhere safe.
Step 2: Pull the taillight housing out
- Grip the taillight housing with both hands and pull straight rearward.
- If it feels stuck, use a plastic trim removal tool to gently pry at the outer edge (this tool is a non-marring wedge used to pop trim loose without scratching paint).
- Don’t yank sideways—there are alignment pins that can break.
Step 3: Remove the bulb socket
- Find the socket for the taillight bulb (the stop/tail bulb is typically the dual-filament bulb in the main red lens area).
- Twist the socket counterclockwise about 1/4 turn by hand, then pull it out.
- Use a small flashlight if you need to see the socket tabs.
Step 4: Replace the bulb
- Put on clean nitrile gloves so you don’t get skin oil on the bulb.
- Pull the old bulb straight out of the socket.
- Push the new 3157 bulb straight in until fully seated.
- Add a tiny smear of dielectric grease to the socket seal (not on the bulb glass).
- Match the bulb base; don’t force it.
Step 5: Reinstall the socket and housing
- Insert the socket back into the housing and twist clockwise to lock.
- Line up the housing’s guide pins with the body holes, then press the housing straight in until it seats flush.
- Reinstall the two screws using the same tool you removed them with (#2 Phillips screwdriver or Torx T15 screwdriver).
- Snug the screws firmly by hand—do not over-tighten (the housing can crack).
Step 6: Repeat on the right side
- Repeat Steps 1–5 on the right taillight so both sides match in brightness and color.
- Replace bulbs in pairs for even lighting.
âś… After Repair
- Turn the headlights ON and confirm both tail lights glow evenly.
- Press the brake pedal and confirm both brake lights get noticeably brighter.
- Turn on hazard flashers and confirm both rear turn signals flash normally.
- If a bulb doesn’t work, remove it and re-seat the bulb and socket, then re-test.
đź’° DIY vs Shop Cost
Shop Cost: $70-$160 (parts + labor)
DIY Cost: $10-$40 (parts only)
You Save: $60-$120 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.
Assumption: “Both taillight bulbs” refers to the left/right stop/tail (3157) bulbs in the rear lamp assemblies.


















