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Lexus RX400h Brake Light Switch Replacement at your home or office.

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Brake Light Switch Replacement Service

How much does a Brake Light Switch Replacement cost?

On average, the cost for a Lexus RX400h Brake Light Switch Replacement is $241 with $101 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Lexus RX400hV6-3.3L HybridService typeBrake Light Switch ReplacementEstimate$356.78Shop/Dealer Price$413.53 - $569.59
2008 Lexus RX400hV6-3.3L HybridService typeBrake Light Switch ReplacementEstimate$347.77Shop/Dealer Price$401.42 - $555.17
2006 Lexus RX400hV6-3.3L HybridService typeBrake Light Switch ReplacementEstimate$347.77Shop/Dealer Price$401.47 - $555.24
Show example Lexus RX400h 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.

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Number of Lexus RX400h services completed
1034+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform
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Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(94)
Rating Summary
88
4
0
0
2
88
4
0
0
2

Patrick

34 years of experience
1579 reviews
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Patrick
34 years of experience
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by Ashlin
Lexus RX400h V6-3.3L Hybrid - Oil Change - Austin, Texas
Once again great service

Richard

12 years of experience
450 reviews
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Richard
12 years of experience
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by Barbara
Lexus RX400h V6-3.3L Hybrid - Car Battery Replacement - Washington, District of Columbia
Terrific experience. Richard let me know when he was arriving and he was there promptly. He knew exactly what he was doing. He was courteous and cleaned up when he was finished. I would recommend him. Barbara

Eduardo

20 years of experience
570 reviews
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Eduardo
20 years of experience
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by Gerald
Lexus RX400h V6-3.3L Hybrid - Windshield Washer Reservoir - Houston, Texas
I have used Eduardo before. He exceeded my expectations, as usual.

Robert

33 years of experience
191 reviews
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Robert
33 years of experience
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by Tajinder
Lexus RX400h V6-3.3L Hybrid - Oil Change - San Jose, California

Excellent Rating

(94)
Rating Summary
88
4
0
0
2
88
4
0
0
2
Number of Lexus RX400h services completed
1034+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

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