logo

Mercedes-Benz GLS550 Brake Light Switch Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(13)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(13)

Brake Light Switch Replacement Service

How much does a Brake Light Switch Replacement cost?

On average, the cost for a Mercedes-Benz GLS550 Brake Light Switch Replacement is $171 with $31 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2018 Mercedes-Benz GLS550V8-4.7L TurboService typeBrake Light Switch ReplacementEstimate$217.94Shop/Dealer Price$237.28 - $287.18
2017 Mercedes-Benz GLS550V8-4.7L TurboService typeBrake Light Switch ReplacementEstimate$208.93Shop/Dealer Price$226.50 - $275.08
Show example Mercedes-Benz GLS550 Brake Light Switch Replacement prices

What is the brake light switch and how does it work?

The brake light switch is a mechanical switch activated when you press the brake pedal. The switch has a plunger in it that contacts a lever in the brake pedal assembly. As that plunger is depressed when you push on the brake pedal, the contacts in the brake light switch closed and voltage flows to the brake lights — turning them on. The brake light switch is also in the circuit that controls the cruise control disengagement and the shift interlock safety feature installed on all newer cars. Failure of the brake light switch occurs due to wear on the internal electrical contacts in the switch, poor switch terminal connections, maladjustment of the switch, or damage to the brake pedal assembly.

When to consider replacing the brake light switch?

  • No brake lights. If depressing the brake pedal does not cause any of the brake lights to illuminate, the continuity of the switch will be tested. If only one brake light is out, then the issue is not the switch but rather the bulb, bulb socket or brake light circuit integrity.
  • Unable to shift out of park. The brake light switch is also wired into the shift interlock mechanism. If you are unable to shift out of park, with your foot on the brake, check to see if the brake lights will illuminate as you push the pedal. If they do not illuminate, failure of the brake light switch may be the cause of the no shift.
  • Intermittent operation of the brake lights or late operation. The brake light switch has to be in the proper position, and work consistently if the brake lights are to come on the instant you press the brake pedal. The switch can sometimes require adjustment, or the contacts may degrade, causing inconsistent operation of the switch.

How do mechanics replace the brake light switch?

  • The switch is first tested using a multimeter, including the terminal contacts to the switch, to determine if it is faulty. If the switch is functioning, the entire circuit must be tested to determine the cause of no brake lights.
  • Should the switch be judged defective, the switch is unthreaded from the mounting boss near the brake pedal assembly.
  • The new switch is threaded in and locked with an appropriate locknut once the new switch is properly adjusted.
  • The operation of the switch is tested to ensure instant illumination of the brake lights upon pressing the brake pedal.

Is it safe to drive with a brake light switch problem?

No. Should the brake light switch have failed, it is unsafe to drive the vehicle because drivers behind you will have no indication that you are slowing, intend to slow, or are stopped. Always address a failure of this type promptly to ensure your safety while driving.

When replacing the brake light switch keep in mind:

  • The mechanic will test the brake light switch directly to ensure that the issue is not elsewhere in the brake light circuit.
  • Occasionally, the issue is a maladjusted switch or a loose contact, and the mechanic can resolve the problem without switch replacement.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Mercedes-Benz Brake Light Switch Replacement services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(13)
Rating Summary
11
0
0
1
1
11
0
0
1
1

Jordan

9 years of experience
144 reviews
Request Jordan
Jordan
9 years of experience
Request Jordan
by pedro
Mercedes-Benz GLS550 V8-4.7L Turbo - Trunk Lift Support Shocks - Kissimmee, Florida
On time, perfect service

Jordan

9 years of experience
144 reviews
Request Jordan
Jordan
9 years of experience
Request Jordan
by pedro
Mercedes-Benz GLS550 V8-4.7L Turbo - Brake Rotor/Disc Replacement (Rear) - Kissimmee, Florida
perfect service thanks

Travis

14 years of experience
160 reviews
Request Travis
Travis
14 years of experience
Request Travis
by GIHYUN
Mercedes-Benz GLS550 V8-4.7L Turbo - Car Battery Replacement - Waxhaw, North Carolina
After the installation, the front right seat malfunction notice popped up on my car screen. Tried to call the technician, but didn't answer nor return my calls

Khoa

21 years of experience
402 reviews
Request Khoa
Khoa
21 years of experience
Request Khoa
by Ian
Mercedes-Benz SL500 V8-5.0L - Brake Light Switch - San Mateo, California
Professional and friendky!

Excellent Rating

(13)
Rating Summary
11
0
0
1
1
11
0
0
1
1
Number of Mercedes-Benz Brake Light Switch Replacement services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

Child Seat Safety Laws in Kansas
Child Child seat safety laws are in place to protect your children. Because of their size and vulnerability, children are not adequately protected by using the same restraint systems that adults use. The use of a child safety seat is...
Read more
Symptoms of a Bad or Failing Top Dead Center (TDC) Sensor
Common signs include the Check Engine Light coming on, car not starting, and engine misfiring or running rough.
Read more
How to Buy a Good Quality Gearshift
The The gear shift, also known as the gear lever or stick, makes it possible to shift gears when driving a manual transmission vehicle. It is attached right to the shift assembly. It has an important job to do, but...
Read more

A click is heard, lights flash, and engine shuts down

Hello. The symptoms you are describing can be caused by a few different issues. The first thing I would check is to see if the battery is in good condition, properly charged, and able to pass a load test. I...
Read more

2012 vw passat oil pressure light came on checked oil full, still comes on

I believe you may be having a problem with your oil pressure sending unit. This is the part that is responsible for sending a signal to your oil pressure light. If no pressure is sensed by the sending unit, the...
Read more

04 Nissan altima knocking and dripping oil

This doesn't sound good. If the engine is loosing oil that fast there is a serious problem. If you have driven the car while it was very low on oil, the damage will be greater still. The engine has to...
Read more
  1. Home
  2. Estimates
  3. Mercedes-Benz
  4. GLS550
  5. Brake Light Switch Replacement

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com

Read FAQ
GET A QUOTE