Changing Out Your Brake Lights: A 2017 Sorento DIY Guide

Has one of the red brake light bulbs behind your 2017 Kia Sorento’s rear glass burned out? Don’t worry – replacing them is an easy DIY project you can tackle in no time. With a few basic tools and a trip to the auto parts store, you’ll be all set to swap those bad bulbs for crisp, bright LED replacements in less than 30 minutes.

In this easy-to-follow guide, you’ll learn step-by-step how to remove and replace your 2017 Sorento’s brake light bulbs quickly and safely. We’ll cover everything you need – the proper replacement bulbs, required tools, removal and installation instructions, and tips for avoiding common rookie mistakes.

Here’s a quick step-by-step guide:

To replace a brake light bulb on a 2017 Kia Sorento, first open the trunk and locate the tail light assembly, then use a flathead screwdriver to remove the two screws holding it in place. Carefully pull out the assembly, twist and remove the bad bulb, insert and twist in the new 1157 replacement bulb, reconnect the electrical harness, realign the assembly, tighten the screws, close the trunk and test the functioning brake lights before driving.

Why DIY Brake Light Bulb Replacement?

Taking on small repairs like burnt-out bulbs can seem intimidating if you’re not extremely handy, but replacing brake lights really is an easy, straightforward job. Once you give it a try, you’ll gain confidence working on your vehicle while saving the cash you’d otherwise spend at the shop!

Doing the work yourself means skipping the hassle of making an appointment and making multiple trips. No need to coordinate rides or deal with mechanics either. Just you, your Sorento, and a couple of tools.

We’ll show you just how simple this repair is. Read on to learn everything you need for DIY brake light bulb replacement in a 2017 Kia Sorento.

What You’ll Need

Replacing burnt-out bulbs requires just a few supplies:

  • Replacement brake light bulbs
  • Flathead screwdriver
  • 10mm socket
  • Protective gloves


Start by purchasing two fresh 1157 brake light bulbs that match what came stock in your Sorento. You’ll find these double-filament bulbs at any auto parts store or online retailer. Prices typically range from $10-15.


You likely already own the tools required:

  • A basic flathead screwdriver
  • 10mm socket

Grab some work gloves too – they’ll protect your hands from dirt, grease, and sharp edges while you handle the tail light assembly.

That’s it for extra parts and tools! Now let’s get to replacing those burnt-out bulbs.

Table 1: Parts and Tools Needed

Brake Light Bulbs2x 1157 Bulbs
Flathead Screwdriver
10mm Socket
GlovesWork Gloves


Follow these steps to safely replace your 2017 Sorento’s burnt-out brake light bulbs:

1. Open the Trunk

Pop open the rear hatch of your Sorento and locate the vehicle’s tail light assemblies on the left and right sides.

2. Remove Two Screws

You’ll notice two Phillips head screws holding each unit in place. Use your flathead screwdriver to back these screws out counterclockwise.

3. Pull Out the Assembly

Once the screws are out, gently pull the entire tail light assembly straight back. A few firm tugs should release the whole piece. Detach the electrical harness by squeezing its release tab.

4. Remove the Bad Bulb

Now comes the burnt-out bulb causing all this trouble! Twist the faulty brake light bulb counterclockwise to release it, then extract it from the assembly.

5. Insert the Replacement

Take your fresh 1157 replacement bulb and align its tabs with the socket holes. Push in gently and twist clockwise to lock the new bulb into place.

6. Re-install the Assembly

Reconnect the electrical harness to the tail light assembly. Align the assembly with its brackets, then push it back into place. Hand tighten the two Phillips screws to secure everything.

7. Test Your Work

Close the hatch and hop in the driver seat. Press the brake pedal and verify the bright glow of your working brake lights in another vehicle’s mirrors or a window’s reflection.

Helpful Replacement Tips

To ensure safe, successful brake light bulb replacement in your 2017 Sorento, keep these pointers in mind:

  • Don’t force anything! Wiggling stuck bulbs or connectors gently is better than breaking something.
  • Triple check your new 1157 bulb type before buying. Using the wrong bulb can blow a fuse.
  • Avoid touching the new bulbs with bare fingers. Oil from your skin leaves residue affecting performance.
  • Don’t overtighten any screws when re-installing assemblies. Snug is fine!
  • Still not working? Check bulb alignment or try replacing the second bulb too.

Be Confident Doing It Yourself

While burnt-out brake lights may seem intimidating, you really can tackle replacement yourself in less than 30 minutes. A few basic tools, fresh bulbs, and following our guide makes for an easy, affordable DIY job.

Get hands-on experience taking care of your vehicle while saving time and money doing the work yourself. And if you ever run into snags, you can always reference this guide covering start-to-finish brake light bulb replacement on a 2017 Kia Sorento.


1. What size brake light bulb does a 2017 Kia Sorento use?

The 2017 Sorento uses 1157 single filament bulbs for the brake lights.

2. Where can I buy replacement 1157 brake light bulbs for my Sorento?

The 1157 bulbs are available at auto parts stores like AutoZone, Napa Auto Parts, O’Reilly Auto Parts, or online retailers like Amazon.

3. Do I need to take my Sorento to the dealer to change a brake light?

No, you can change the brake light bulbs yourself at home using just basic tools like a screwdriver and socket set.

4. How long does it take to change a brake light bulb in a 2017 Sorento?

It should only take 15-20 minutes to replace a brake light once you have gathered the new bulb and tools.

5. What if my Sorento brake light is still out after replacing the bulb?

If the brake light is still out, check that the replacement bulb is correctly aligned and secured in the assembly, or try replacing the other brake light bulb. Also check for any blown fuses related to the lighting circuit.

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