Volvo S60 Brake Light Switch Problems and Replacement Guide (2001-2010)
Learn how to diagnose a failing brake light switch on your P2 S60 and choose the best new aftermarket replacement.
- A bad brake light switch can cause more than just lighting issues; it can prevent you from shifting out of Park and disable your cruise control.
- If only the main brake lights fail but the third light works, suspect the relay in the Rear Electronic Module (REM) before replacing the switch.
- Replacement is a simple DIY job that requires minimal tools and about 30 minutes.
- For reliability, choose a Genuine Volvo part or a high-quality aftermarket brand like Standard Ignition (SMP); use caution with budget brands.
Is Your Volvo S60 Brake Light Switch Failing?
A failing brake light switch on the 2001-2010 Volvo S60 can cause confusing electrical problems that go beyond the brake lights themselves. Because this switch communicates with several of the car's computer systems, its failure can mimic other, more serious issues. Understanding the common symptoms is key to correctly diagnosing the problem and avoiding unnecessary repairs.
🎬 Watch: A quick guide to bad brake light switch symptoms.Common Failure Symptoms
Look out for these signs of a bad brake light switch on your S60:
- Brake Lights Don't Work: The most obvious and dangerous symptom. This is a major safety risk and needs immediate attention.
- Brake Lights Stay On: The switch can fail in the 'on' position, leaving your brake lights illuminated even when the car is off, which will drain your battery.
- "Check Brake Light" Warning: Your dashboard may display a bulb failure message even if all bulbs are good.
- Cannot Shift Out of Park: The gear shifter requires a signal from the brake switch to release the shift interlock. If it doesn't get that signal, your shifter will be stuck.
- Cruise Control Inoperative: The cruise control system will not engage if it receives a constant 'brake on' signal or no signal at all from a faulty switch.
- ABS or DSTC Warning Lights: The stability control system relies on the brake switch input. A bad signal can trigger a fault light on the dash.
Pro Tip: Check the REM Relay First
On this generation of Volvo S60, a common issue is for the two main brake lights to stop working while the third, high-mounted brake light still functions correctly. If you experience this, the problem is likely not the brake light switch itself, but a specific relay (RMI5) located in the Rear Electronic Module (REM) in the trunk. The brake light switch sends the signal to both, but they are powered through different circuits.
Choosing the Right Aftermarket Brake Light Switch
When replacing the brake light switch, you have a choice between Genuine Volvo parts and several aftermarket brands. While Genuine parts offer a guaranteed fit and quality, some aftermarket options provide excellent value. However, quality can vary significantly.
- Tier 1 (OEM Quality): Genuine Volvo is the benchmark. For aftermarket, brands like Standard Ignition (SMP) have a strong reputation for producing reliable electronic parts that are thoroughly tested. Vemo is another brand often considered to be of high quality, though experiences can sometimes vary.
- Tier 2 (Standard Aftermarket): Beck Arnley is a well-known aftermarket supplier that sources parts from various manufacturers. Their quality is generally considered acceptable for most repairs. Rostra Powertrain is also known in the electronics space.
- Tier 3 (Use With Caution): Based on owner feedback, brands like Professional Parts Sweden (PPS) should be approached with caution for electronic components. Multiple forum users have reported poor quality and premature failures with this brand's parts.
Cost of Replacing a Volvo S60 Brake Light Switch
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Part | $39 - $88 |
| New Genuine OEM Part | $90 - $150 |
| Shop Labor | $75 - $150 |
| Total Professional Replacement | $114 - $238 (Aftermarket) / $165 - $300 (OEM) |
Recalls and Technical Service Bulletins (TSBs)
As of early 2026, there are no specific NHTSA recalls or widespread TSBs for the brake light switch on the 2001-2010 Volvo S60. Recent brake-related recalls for Volvo have been for newer models and involve software issues with the Brake Control Module, which do not apply to this generation's switch.
Frequently Asked Questions (FAQ)
Is replacing the brake light switch a DIY job?
Yes, this is a very feasible DIY project for most car owners. The switch is located above the brake pedal and can be accessed by removing the lower dash panel with a Torx screwdriver. The replacement process is straightforward and typically takes less than an hour.
🎬 See this walkthrough on how to remove the switch.How is the new brake light switch installed and adjusted?
The switch on the S60 is self-adjusting. To install, you must first depress the brake pedal. Then, insert the new switch into its mounting bracket until it clicks. When you release the brake pedal, it will press against the switch's plunger, causing it to self-adjust to the correct depth with an audible click.
🎬 Watch: How to properly install and adjust the new switch.Why do my brake lights stay on?
This is usually caused by the brake light switch failing in the closed or 'on' position. It sends a continuous signal that the brakes are applied. This requires immediate replacement as it is a safety hazard and will drain your vehicle's battery.
Can I just adjust my old switch?
While some older switches could be adjusted, the switches on these newer Volvos are designed to be self-adjusting upon installation and are not meant to be manually adjusted afterward. If the switch is malfunctioning, it needs to be replaced.
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Technical Specifications
OEM Part Numbers: 8622064 9128577 30773935 30773936
Located on the brake pedal bracket under the driver's side dashboard. It is a self-adjusting plunger-style switch with a multi-pin electrical connector. Note: Some pedal assemblies may have two separate switches/sensors; verify your specific setup.
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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.
- Volvo S60:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Volvo S60 Brake Light Switch Failing?
- Common Failure Symptoms
- Pro Tip: Check the REM Relay First
- Choosing the Right Aftermarket Brake Light Switch
- Cost of Replacing a Volvo S60 Brake Light Switch
- Recalls and Technical Service Bulletins (TSBs)
- Frequently Asked Questions (FAQ)
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