how to fix the brake lights not working in Tesla Outback 5th Generation (2015-2019)

Subaru Outback 5th Generation (2015-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

critical

Severity

4 min read

653 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix brake lights not working in Tesla Outback 5th Generation (2015-2019). Step-by-step guide with tools and safety tips.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent short circuits or shocks.

Symptoms

•Brake lights do not illuminate when the brake pedal is pressed
•Dashboard warning light for brake system may be illuminated
•Other lights (tail lights, reverse lights) function normally
•Possible error message displayed on the vehicle’s screen
•Potential for the vehicle to be flagged during inspections

Diagnostic Steps

1
Check the brake light bulb for damage or burnout by removing the tail light assembly.
2
Inspect the brake light switch located near the brake pedal for proper operation.
3
Use an OBD-II scanner to check for any relevant error codes in the vehicle’s computer system.
4
Verify the fuse for the brake lights in the fuse box to ensure it is intact.
5
Inspect the wiring and connectors leading to the brake lights for any signs of damage or corrosion.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Socket set
•Multimeter
•OBD-II scanner
•Replacement brake light bulbs
•Fuses

Parts Required

•Brake light bulbs
•Brake light switch (if faulty)
•Fuses (if blown)

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Symptoms

•Brake lights do not illuminate when the brake pedal is pressed

•Dashboard warning light for brake system may be illuminated

•Other lights (tail lights, reverse lights) function normally

•Possible error message displayed on the vehicle’s screen

•Potential for the vehicle to be flagged during inspections

Diagnostic Steps

1
Check the brake light bulb for damage or burnout by removing the tail light assembly.
2
Inspect the brake light switch located near the brake pedal for proper operation.
3
Use an OBD-II scanner to check for any relevant error codes in the vehicle’s computer system.
4
Verify the fuse for the brake lights in the fuse box to ensure it is intact.
5
Inspect the wiring and connectors leading to the brake lights for any signs of damage or corrosion.

Solution

1. Preparation

Gather tools: socket set, multimeter, OBD-II scanner, replacement brake light bulbs, and fuses if necessary.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working on the electrical components.

2. Inspect and Replace Brake Light Bulbs

Sub-steps:
1. Open the rear tailgate and remove any trim panels if necessary to access the tail light assembly.
2. Unscrew or unclip the tail light assembly to remove it from the vehicle.
3. Remove the old brake light bulbs by twisting them counterclockwise and pulling them out.
4. Insert new brake light bulbs by pushing them into the socket and twisting them clockwise to secure.
5. Reinstall the tail light assembly and secure it with screws or clips.

3. Test Brake Light Switch

Sub-steps:
1. Locate the brake light switch mounted on the bracket near the brake pedal.
2. Disconnect the electrical connector from the switch.
3. Use a multimeter to test for continuity across the switch terminals while pressing the brake pedal.
4. If there's no continuity, replace the brake light switch with a new one.
5. Reconnect the electrical connector once the switch is replaced.

4. Check and Replace Fuse

Sub-steps:
1. Locate the fuse box and identify the fuse for the brake lights using the diagram on the cover.
2. Remove the fuse using fuse pullers or pliers.
3. Inspect the fuse for any signs of a blown filament.
4. If blown, replace it with a new fuse of the same amperage rating.
5. Reinsert the fuse into the fuse box and ensure it is properly seated.

5. Reconnect Battery and Test

Sub-steps:
1. Reconnect the battery terminal and ensure it is tight.
2. Press the brake pedal to test if the brake lights illuminate.
3. If the lights do not work, repeat the diagnostic steps to confirm all components are functioning properly.