Subaru Forester Brake Light Switch Guide for 2005-2017 Models
Having issues with your brake lights, cruise control, or seeing VDC warnings? Your brake light switch is the likely culprit.
- A faulty brake light switch is a known issue, with a recall affecting 2014-2016 Foresters.
- Symptoms go beyond brake lights, often disabling VDC, ABS, and cruise control.
- This is an easy and inexpensive DIY replacement, typically taking less than 30 minutes.
- Proper adjustment is crucial; even a new switch can cause issues if not adjusted correctly.
Is Your Forester's Brake Light Switch Failing?
A faulty brake light switch is a very common issue on 2005-2017 Subaru Foresters. The original switches were prone to contamination, which could interrupt the electrical signal. This can cause a range of confusing problems that don't always seem related to the brakes.
Key Failure Symptoms
🎬 Watch this video to see common symptoms of a bad switch.- Brake Lights Don't Work or Stay On: The most obvious sign is your brake lights not illuminating when you press the pedal, or staying on constantly, draining your battery.
- ABS and VDC Warning Lights: The switch sends a signal to your traction and stability control systems. If this signal is lost, the ABS and VDC warning lights will often illuminate on your dash.
- Cruise Control Won't Engage: As a safety measure, the cruise control system deactivates when you press the brake. If the switch is faulty, the system may think the brakes are always applied, preventing you from setting your cruise control.
- Car Won't Start or Shift Out of Park: For models with push-button start, the car requires a signal from the brake switch to start the engine. Similarly, the automatic transmission's shift interlock needs the brake signal to allow you to shift out of Park.
Recall and Technical Service Bulletin (TSB) Information
Subaru issued a major recall (NHTSA Campaign #19V149000) for the brake light switch on 2014-2016 Foresters. The original switches could become contaminated by silicone found in some interior cleaning products. Subaru also released a Technical Service Bulletin (06-55-16R) describing an updated switch design. The new, improved switch is typically blue and uses special fluorine grease to prevent contamination. Before purchasing a part, check with a Subaru dealer or on the NHTSA website to see if your vehicle had the recall performed.
Choosing the Right Aftermarket Brake Light Switch
For a part this critical, quality matters. While an OEM switch from Subaru is a safe bet, quality aftermarket parts can offer reliable performance. The key is to ensure the replacement part is an updated design that addresses the original failure point.
Brand Options:
- Standard Ignition (SMP): A well-regarded aftermarket manufacturer that often provides parts meeting or exceeding OEM specifications. They are a solid choice for a reliable replacement.
- True Tech: Often positioned as a more budget-friendly option, True Tech provides a functional replacement for vehicle owners looking for a cost-effective solution.
Pro Tip: Even after replacement, the switch may need to be adjusted. The pedal should travel 3mm to 8mm before the brake lights activate. An improperly adjusted switch can cause the same warning lights and issues as a failed one.
Brake Light Switch Replacement Cost
Replacing the brake light switch is an affordable repair. The part itself is inexpensive, and labor is minimal as the switch is easy to access.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Part | $50.90 - $59.22 |
| New OEM Part | $16 - $25 |
| Shop Labor | $140 |
Frequently Asked Questions
Can I drive my Forester with a bad brake light switch?
It is not recommended. If your brake lights are not working, other drivers won't know you are slowing down, which is a major safety hazard that can lead to a rear-end collision. If the switch failure prevents you from starting the car or shifting out of park, you will be stranded.
Is this a difficult part to replace myself?
No, this is a very DIY-friendly repair. The switch is located at the top of the brake pedal arm under the dashboard. It typically requires no special tools—just unplug the electrical connector, twist the old switch to remove it, and install the new one. The entire process usually takes less than 30 minutes.
My car had the recall done, but I still have problems. What now?
It's possible the replacement switch has failed or, more likely, it was not adjusted correctly. Check the adjustment to ensure the pedal has the correct amount of travel before the lights come on (3mm-8mm). If the adjustment is correct, the new switch may be faulty.
Why are aftermarket switches more expensive than OEM for this part?
It's unusual, but sometimes OEM parts for common recall items are priced very competitively. In this case, the OEM Subaru switch is often cheaper than premium aftermarket brands. However, aftermarket parts from brands like Standard Ignition and True Tech are readily available from a wider range of retailers.
Helpful Videos
Technical Specifications
OEM Part Numbers: 83311FJ001 83311FG011 83311FG010 83311FJ000
Mechanical plunger-style switch with a 4-pin electrical connector. Updated OEM versions are identified by a blue body.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Subaru Forester: