Jeep Grand Cherokee Brake Light Switch Guide for 2006-2013 Models
Having brake light, cruise control, or shifting problems? Your brake light switch might be the culprit.
- A bad brake light switch can cause brake light failure, prevent shifting out of park, and disable cruise control.
- This is a simple, low-cost DIY repair that usually takes less than 30 minutes.
- Always check the brake light fuse first before replacing the switch.
- Aftermarket brands like Standard Ignition and Dorman are reliable alternatives to the more expensive Mopar part.
Is Your Grand Cherokee's Brake Light Switch Failing?
A faulty brake light switch on a 2006-2013 Grand Cherokee can cause a range of confusing electrical issues. Because this switch is tied into multiple vehicle systems, its failure can mimic other, more serious problems. Recognizing the specific symptoms is the first step to a quick and affordable fix.
Common Failure Symptoms
- Brake lights won't turn on: The most obvious and dangerous symptom. You press the pedal, but the lights don't illuminate.
- Brake lights stay on: The switch fails in the 'on' position, keeping the brake lights illuminated and draining your battery. 🎬 See a demonstration of common bad brake light switch symptoms
- Can't shift out of Park: The switch fails to send the signal that the brake is applied, so the shift interlock won't release.
- Cruise control won't work: The system won't engage or will shut off unexpectedly because it's getting a false signal from the brake switch.
- ABS or Traction Control light is on: The switch provides input to these systems, and a bad signal can trigger a warning light on your dash.
Choosing the Right Aftermarket Brake Light Switch
When replacing the brake light switch, you have a choice between the original equipment manufacturer (OEM) part from Mopar and several aftermarket brands. For a simple part like this, aftermarket options often provide excellent value without sacrificing reliability.
- Premium Aftermarket (e.g., Standard Ignition, Dorman): These brands are well-regarded in the auto repair industry. They design their parts to meet or exceed OEM specifications. Forum users and mechanics often trust these brands for reliable, long-lasting repairs. Some users report that aftermarket parts can feel cheap or fail, but brands like Standard are often seen as a quality replacement.
- OEM (Mopar): This is the exact same part your Jeep was built with. It guarantees a perfect fit and function but typically comes at a higher price point. If you prefer to stick with factory parts, Mopar is the way to go.
- Value-Priced Brands (e.g., Crown Automotive, Vemo): These brands offer a more budget-friendly option. Crown Automotive specializes in Jeep parts and can be a good choice for owners looking for a direct-fit replacement at a lower cost. However, with any value-oriented part, quality can sometimes be inconsistent.
Pro Tip: Before you buy a new switch, check the fuse for the brake lights first. A simple blown fuse can cause similar symptoms and is a much easier fix. The fuse is typically a 15-amp fuse located in the fuse box under the hood.
🎬 Watch: How to find your fuse and replace the switchCost of Replacing a Brake Light Switch (2006-2013 Grand Cherokee)
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket | $19.48 - $42.74 |
| New OEM (Mopar) | $35 - $60 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
Is this a difficult part to replace myself?
No, this is a very DIY-friendly job. The switch is located above the brake pedal and usually twists and locks into its bracket. You'll need to work in a tight space, but the replacement typically takes less than 30 minutes and requires no special tools. 🎬 Watch this quick walkthrough for the WK2 model year switch Be aware that the old switch may break upon removal, which is normal.
Are there any recalls for the brake light switch on my Grand Cherokee?
Searches of the NHTSA database did not show any specific recalls for the brake light switch itself on the 2006-2013 Jeep Grand Cherokee. However, other recalls for related systems like the ABS module have been issued for different model years, which can sometimes cause similar warning lights.
What happens if I don't replace a bad brake light switch?
Ignoring a faulty brake light switch is a serious safety risk. If your brake lights don't work, drivers behind you won't know you are stopping, which can easily lead to a rear-end collision. If the lights are stuck on, it will drain your battery. It's an inexpensive part that is critical for road safety.
My new switch is installed, but it's not working. What now?
The switch has a self-adjusting plunger. After installing it, you may need to pull the brake pedal fully upward to set the switch to its correct position. Also, double-check the electrical connector to ensure it is plugged in securely. If problems persist, check for wiring issues or a blown fuse.
Helpful Videos
Technical Specifications
OEM Part Numbers: 56045042AE
Located on the brake pedal support bracket, this is a plunger-actuated switch that completes multiple electrical circuits when the brake pedal is depressed.
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.
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