Chrysler 300 Brake Light Switch Guide for 2003-2022 Models
Solve brake light failures, dashboard warnings, and starting issues on your Chrysler 300.
- A bad brake light switch causes more than just lighting problems; it can prevent your car from starting or shifting out of park.
- Symptoms include brake light failure, ABS/ESC warnings, and cruise control issues.
- Replacement is a simple, fast, and affordable DIY job for most owners.
- For this critical safety part, choosing a quality OEM (Mopar) or premium aftermarket brand (Dorman, Standard) is recommended.
Is Your Chrysler 300 Brake Light Switch Failing?
A bad brake light switch can cause confusing problems that don't seem related to the brakes. Because the switch communicates with multiple vehicle systems, its failure can mimic other issues. Before you suspect a major electrical problem, check for these common signs of a faulty brake light switch.
Top 5 Symptoms of Failure
- Brake Lights Don't Work or Stay On: The most obvious sign is your brake lights not turning on when you press the pedal, which is a serious safety hazard. Conversely, they might get stuck on, draining your battery.
- ABS and Traction Control Lights On: The Anti-lock Brake (ABS) and Electronic Stability Control (ESC) systems use the brake switch signal. A bad switch can trigger warning lights on your dashboard.
- Cruise Control Issues: Your cruise control may not turn on, or it might shut off by itself while you're driving. This happens because the car's computer incorrectly thinks you are pressing the brakes.
- Car Won't Shift Out of Park: For safety, your 300 has a shift interlock that requires the brake to be pressed before you can move the shifter. If the switch is bad, the shifter can get stuck in Park.
- Engine Won't Start: On models with a push-button start, the system needs to confirm the brake pedal is pressed before starting the engine. A failed switch prevents this signal from being sent.
Known Issues: Recalls and Service Bulletins
While there are no widespread recalls specifically for the Chrysler 300 brake light switch across all model years, related issues have been noted. An official Technical Service Bulletin (TSB #S1808000152) was issued for some models, addressing diagnostic trouble codes P057B, P1572, and C0042-54 related to the brake pedal position sensor circuit. Additionally, a past recall (NHTSA Campaign 16E001000) was issued for certain aftermarket switches sold for Chrysler vehicles that could fail to illuminate the brake lights. This highlights the importance of choosing a quality replacement part.
Choosing the Right Aftermarket Brake Light Switch
When replacing the brake light switch on your 300, you have a choice between OEM and aftermarket parts. For a simple but critical part like this, quality matters.
- OEM (Mopar): Mopar is the original equipment manufacturer for your Chrysler. Choosing Mopar guarantees a perfect fit and function, just like the part that came with your car from the factory. For this specific part, the OEM price is often competitive with high-end aftermarket options.
- Premium Aftermarket (Standard Ignition, Dorman): Brands like Standard Motor Products (SMP) and Dorman are well-regarded in the industry for producing quality replacement parts that meet or exceed OEM specifications. They offer a reliable alternative to OEM, often at a slightly lower price point.
- Budget Aftermarket (Crown, Vemo, etc.): Other brands offer a more budget-friendly price. While they can provide a functional replacement, be aware of potential quality differences. Given the past recall on some aftermarket switches and the critical safety function of this part, it's often worth spending a few extra dollars for a premium brand.
Pro Tip: Installation
Replacing the brake light switch is a simple DIY job that usually takes less than 30 minutes. The switch is located above the brake pedal. You'll need to remove the lower dash cover, unplug the electrical connector, and then twist the switch to remove it from its bracket. No special tools are typically required, though a trim removal tool can help with the plastic clips on the dash panel.
🎬 Watch this step-by-step guide for replacing the switch yourself.Cost of Replacing a Chrysler 300 Brake Light Switch
| Part Type | Price Range |
|---|---|
| New OEM (Mopar) | $13 - $35 |
| New Aftermarket | $21.14 - $70.60 |
| Shop Labor | $95 - $150 |
Note: Prices are estimates and may vary based on supplier, brand, and location. The provided aftermarket range reflects our inventory, while OEM and labor costs are based on market research.
Frequently Asked Questions
Can I replace the brake light switch myself?
Yes, this is a very DIY-friendly repair. The switch is accessible under the driver's side dashboard above the brake pedal. The process involves removing a trim panel and then a simple 'twist-and-pull' motion to get the old switch out. The entire job can usually be done in under 30 minutes with basic hand tools.
Why are my ABS and traction control lights on after the brake light switch failed?
The ABS and traction control systems rely on the brake switch to know when you are braking. If the switch sends an incorrect or no signal, the computer flags it as a fault in the system, which illuminates the warning lights on your dash. Replacing the faulty switch should resolve this issue.
🎬 Watch how a faulty switch triggers ABS and traction lights.Does the new brake light switch need to be calibrated?
For most models in this year range, the switch is a plug-and-play part that does not require calibration. However, some sources suggest that on the newest models, a calibration or reset procedure might be necessary. If you install a new switch and still have issues, check for any specific procedures for your model year or consult a professional.
Why won't my car shift out of park?
The brake-shift interlock is a safety feature that prevents you from shifting out of Park unless the brake pedal is pressed. The brake light switch sends the signal to release this lock. If the switch is faulty, the interlock solenoid never gets the signal, and your shifter remains locked.
🎬 See how to bypass the interlock and fix the shifter.Helpful Videos
Technical Specifications
OEM Part Numbers: 05189366AB 4671336AD 56042023 05189366AA
Located on the brake pedal support bracket, the switch uses a plunger that is activated by the movement of the brake pedal. It typically has a multi-pin connector to communicate with both the lighting circuit and the vehicle's body control module.
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.
- Chrysler 300:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Chrysler 300 Brake Light Switch Failing?
- Top 5 Symptoms of Failure
- Known Issues: Recalls and Service Bulletins
- Choosing the Right Aftermarket Brake Light Switch
- Pro Tip: Installation
- Cost of Replacing a Chrysler 300 Brake Light Switch
- Frequently Asked Questions
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