Question about 2004 Chevrolet TrailBlazer

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Turn signals work overhead brake light works but both lower lights do not?

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  • pcwink Jul 30, 2009

    Of course.

  • pcwink Jul 30, 2009

    The car is actually a 2005. I called the dealer, and there is no recall for this one.

  • nathan May 11, 2010

    did you replace bulbs?

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If you're talking about rear brake lights not working there is a recall for the circuit boards behind the bulbs that overheat. THe board will blow the light bulbs as fast as you can replace them.

Posted on Jul 30, 2009

  • tomcatalano Jul 30, 2009

    I replaced the bulbs and they worked for about a week. After the dealer replaced the circuit boards, the bulbs stopped blowing. The original circuit boards were feeding the brake lights voltages upwards to 18-22 volts instead of 12-14. The newly designed boards keep the voltage to the proper level and do not blow the rear light bulbs.

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Lower brake lights no longer work on my 2002 chevy tahoe but the 3rd brake light works fine. Checked fuse and bulbs and everything works fine. Just the 2 lower brake lights dont work.


Most of the time the problem is in the turn signal switch. The third brake light circuit bypasses the turn signals.
Someone would need to check brake light power in and out of the turn signal switch.

Feb 25, 2014 | GMC Cars & Trucks

Tip

Both Lower Brake Lights Not Working


Check Brake Light Bulbs: All cars have three brake light bulbs that create the brake light illumination affect. If the lower two bulbs fail no lower brake light operation will occur. I know what you're thinking, you might say two brake lights at once? But in reality one brake light went out at a time and you did not notice. People only tend to notice something when they almost run into the back of your car to help persuade them to inform you the brake lights aren't working. Remove either of the brake light bulbs to confirm the bulb is ok or burned. After the bulb has been removed inspect the filament and replace if failed. If the brake light bulbs are ok continue to the next step.

Checking the Turn Signal Switch: Most American cars are designed to have the brake light switch wiring intergraded into the turn signal switch. Because the brake light bulb and the turn signal bulb are one and the same the turn signal switch interrupts the brake light circuit and installs the blinker signal circuit when the turn signal switch is activated. If this switch fails it will not allow the brake light signal through to the brake light wiring. To test for this condition a car repair manual is needed to test incoming and outgoing electrical current. If brake light switch power is present at the turn signal switch but not at any outgoing brake light wires the turn signal switch has probably failed.

on Dec 18, 2009 | Honda Civic Cars & Trucks

1 Answer

Brake light is working but not the tail light?


There are three fuses involved.
There is a 25 amp fuse before the brake switch located in the fuse box under the hood. Then there are two 15amp fuses after the brake switch in the box inside the cabin. One is for the lower brake lights and the other is for the high mount light and the trailer connector.
You would need to know if the 15amp fuse for the lower lights has power when the brake pedal switch is applied.

Feb 01, 2014 | 2004 Cadillac Escalade Esv

2 Answers

I have no break lights or turn signals


Turn signal tail lights and BRAKE LIGHTS NOT WORKING


It can be faulty brake light switch causing the problem or its blown brake light bulb. First check and confirm brake light lamp is working and that's not the case.

For turn signal not working it can be faulty turn signal switch or its issue with wiring:----


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To trouble shoot brake and turn signal related problem, check the help links mentioned below:-----


Click the link:----
1996 Buick Regal Grand Sport Brake light Switch Location? http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html

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No brake lights on Buick? http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html

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Brake lights not working on 1989 BUICK REGAL?

http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

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How to replace Brake light switch on Chevrolet Tahoe?

http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html

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How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

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Upper brake lights work, but low brake light not working?

http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

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1997 Cadillac Catera: How to replace Brake Light Switch?

http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html

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2003 Chevrolet S10 Tail light Fuse http://schematicsdiagram.blogspot.com/2012/11/2003-chevrolet-s10-tail-light-fuse.html

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Chevrolet Parking light and Tail lamp light Wiring diagram http://schematicsdiagram.blogspot.com/2012/11/chevrolet-parking-light-and-tail-lamp.html

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Car Tail Lights Not Working?

http://schematicsdiagram.blogspot.com/2011/12/car-tail-lights-not-working.html

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Turn Signal Not working http://technoanswers.blogspot.com/2012/11/turn-signal-not-working.html

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Right turn signal not working on Pontiac Car?

http://schematicsdiagram.blogspot.com/2011/12/right-turn-signal-not-working-on.html

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Only one side indicator light working on car?

http://schematicsdiagram.blogspot.com/2011/12/only-one-side-indicator-light-working.html

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Turn signals not working on 1987 Jeep Wagoneer? http://schematicsdiagram.blogspot.com/2011/12/turn-signals-not-working-on-1987-jeep.html

1996 Chrysler LHS brake light circuit wiring diagram?

http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html

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How to replace rear Brake lights on 2004 Toyota RAV4? http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html

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One brake light on driver side not working, but other lights work?

http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

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2002 Lincoln Town car Fuse Box http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html 2007 KIA Rio: Brake Light Fuse Box Diagram?

http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html

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Overhead Brake lights not working on 1999 GMC Sierra 4x4?

http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html

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2004 Ford Mustang: Brake light Fuse Location?

http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html

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These will help.

Thanks.

Nov 24, 2012 | Cars & Trucks

1 Answer

No lower brake lights, working in middle of rear window, turn signals work, tail lights work, back-up lights work


Most problems of this type have been traced to the headlight dimmer switch. Have the exact same problem with mine. When I hold the brake and wiggle the signal light switch the brake lights work.

Nov 25, 2010 | 1995 Chevrolet Lumina

2 Answers

1999 ford explorer the 2 lower brake lights won't work but the 3rd upper brake light works fine ...... whats wrong ???


check the rear lower bulbs, if good nore than likely brake lamp switrch on brake pedal, 3rd lamp rns of separate circuit

Aug 13, 2010 | 1999 Ford Explorer

1 Answer

1997 Chevrolet Lumina : upper brakelight (window) works, lower brakelights don't work. Changed bulbs and fuse-no go. Most logical theory so far is that they are on seperate circuits, the lower lights run...


Will your Center High-Mount Stop Light (CHMSL) illuminate when you depress the brake pedal, but the lower/outer lights will not?
-- Do you have to hold the signal lever in a certain spot to get the turn signals to flash?
-- Do you have to hold the signal lever in a certain spot to get the lower/outer brake lights to illuminate?
-- Will the signals work in one direction, but not the other?
If you answered yes to any of the preceeding questions, your turn signal switch is likely malfunctioning.

**One more question before we continue: Is the turn signal lever not "cancelling" (returning to the "off" position) after you make a turn? If this is the case, you have a broken "cancelling spring."


Before you begin disassembly of your steering column, verify the turn signal flasher is not malfunctioning. If your brake lights work fine, but not the signals (either direction,) then it's likely the flasher is burnt out. The flasher itself is located underneath the dash near where the steering column passes through the firewall

Nov 27, 2009 | 1997 Chevrolet Lumina

1 Answer

1999 GMC Suburban, K1500 4WD. Top brake light bar


third light is different circuit. saftey reason check fuses grounds wires

Oct 10, 2009 | 1999 GMC Suburban

3 Answers

Brake light problems on a 2000 chevy lumina


Will your Center High-Mount Stop Light (CHMSL) illuminate when you depress the brake pedal, but the lower/outer lights will not?
-- Do you have to hold the signal lever in a certain spot to get the turn signals to flash?
-- Do you have to hold the signal lever in a certain spot to get the lower/outer brake lights to illuminate?
-- Will the signals work in one direction, but not the other?
If you answered yes to any of the preceeding questions, your turn signal switch is likely malfunctioning.

**One more question before we continue: Is the turn signal lever not "cancelling" (returning to the "off" position) after you make a turn? If this is the case, you have a broken "cancelling spring."


Before you begin disassembly of your steering column, verify the turn signal flasher is not malfunctioning. If your brake lights work fine, but not the signals (either direction,) then it's likely the flasher is burnt out. The flasher itself is located underneath the dash near where the steering column passes through the firewall

Mar 19, 2009 | 2000 Chevrolet Lumina

1 Answer

Lower brake lights dont work,third light does


Turn signal switch 95% of t he time. Try to work your hazards, if it stuck at all will also cause this.

Feb 10, 2009 | 1998 Chevrolet Blazer

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