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Silverado center high mounted stop light - Chevrolet Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: How do I replace the bulb in the high mount stop light?

Please look at the bottom of your tail lights there is 1 flat head screw there. Take it out and you can slide tail light out. You will find the back of the bulb there. Be care when returning the assembly back in place as it slide up and then you just replace the screw.

Posted on Mar 20, 2009

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SOURCE: changing high mounted stop light bulb

HMS Lamp will be mounted in roof or in rear parcel tray.

You have to locate the screws which will be closed/covered by a dummy cap. Remove the cap and unscrew the assembly, you will be able to replace the bulbs

Posted on Jun 06, 2010

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SOURCE: 2006 CTS right and left

go to the brake pedal siwtch and check voltage there, the center light is not on the same circuit

Posted on Aug 18, 2010

  • 7 Answers

SOURCE: 2004 Dodge Dakota Quad Cab:

Change the brake light bulbs. When the switch goes bag the bulbs will sometimes give out from being on all the time. Did the high mount brake light go out?

Posted on Aug 05, 2012

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2004 chevy impala brake light isses switch has been replaced and so have fuses and bulbs still no lights


Do you know how to test using a DVOM - digital volt ohm meter ? Is there B+ voltage going into the brake light switch ? An coming out when the brake pedal is pressed ? What fuse's ? There is only one fuse for the brake lights !
The BRAKE SW fuse in the RH I/P fuse block supplies battery positive voltage to the normally-open stop lamp switch. When you press the brake pedal the switch contacts close and battery positive voltage is supplied to the left and right stop lamp assemblies and to the center high mounted stop lamp (CHMSL). The left and right stop lamp along with the CHMSL are grounded at G302.
Do you know about the right insturment panel fuse box ?
Stop Lamps Inoperative
Step
Action
Yes
No
Schematic Reference: Exterior Lights Schematics
1
Did you perform the Lighting System Diagnostic System Check?
YES - Go to Step 2
NO - Go to Diagnostic System Check - Lighting Systems
2
Press the brake pedal.
Do all of the stop lamps illuminate?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Are all the stop lamps inoperative?
YES - Go to Step 4
NO - Go to Step 7
4
Inspect the BRK SW fuse.
Is the fuse open?
YES - Go to Step 14
NO - Go to Step 5
5
Disconnect the stop lamp switch.
Using a test lamp connected to ground, probe the battery supply voltage circuit of the stop lamp switch connector.
Does the test lamp illuminate?
YES - Go to Step 6
NO - Go to Step 13
6
Install a fused jumper between the battery supply voltage circuit and the stop lamp switch signal circuit of the stop lamp switch connector.
Do the stop lamps illuminate?
YES - Go to Step 12
NO - Go to Step 17
7
Determine if the center high mounted stop lamp is inoperative or the stop/turn lamps are inoperative.
Are the stop/turn lamps inoperative?
YES - Go to Step 8
NO - Go to Step 9
8
Do the turn lamps operate normally?
YES - Go to Step 17
NO - Go to Turn Signal Lamps and/or Indicators Inoperative
9
Disconnect the center high mounted stop lamp.
Using a test lamp connected to ground, probe the stop lamp switch signal circuit of the center high mounted stop lamp at the harness connector.
Press the brake pedal.
Does the test lamp illuminate?
YES - Go to Step 10
NO - Go to Step 15
10
Using a test lamp, probe between the stop lamp switch signal circuit and the ground circuit of the center high mounted stop lamp with a test lamp.
Press the brake pedal.
Does the test lamp illuminate?
Go to Step 11
Go to Step 16
11
Inspect for poor connections at the harness connector of the center high mounted stop lamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 20
Go to Step 19
12
Inspect for poor connections at the harness connector of the stop lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 20
Go to Step 18
13
Repair a open or high resistance in the battery supply voltage circuit of the stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
14
Repair a short to ground in one of the following circuits:
• The battery supply voltage circuit of the stop lamp switch
• The stop lamp switch signal circuit of the stop lamp switch
Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
15
Repair a open or high resistance in the stop lamp switch signal circuit of the center high mounted stop lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
16
Repair an open or high resistance in the ground circuit of the center high mounted stop lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
17
Repair an open or high resistance in the stop lamp switch signal circuit of the stop lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 20
--
18
Verify the stop lamp switch adjustment. Refer to Stop Lamp Switch Adjustment . If OK, replace the stop lamp switch. Refer to Stop Lamp Switch Replacement .
Did you complete the repair?
Go to Step 20
--
19
Replace the center high mounted stop lamps. Refer to High Mount Stop Lamp Replacement .
Did you complete the repair?
Go to Step 20
--
20
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2

Jun 23, 2017 | Cars & Trucks

1 Answer

I have a 1999 Chevy Silverado and the cab break lights, top rear, do not work. All the bulbs are good. How do I start to trouble shoot this problem?


Have you checked the CHMSL fuse in the under hood fuse box ? It is a 10 amp . CHMSL - center high mount stop lamp fuse .

May 11, 2017 | Cars & Trucks

1 Answer

On a 2006 chevrolet silverado 1500, where is the back brake light fuse?


Stop Lamps
The STOP LP 25-amp fuse in the underhood fuse block supplies battery positive voltage to the normally open stop lamp switch. When the driver presses the brake pedal, the switch contacts close and battery positive voltage is supplied to both the STOP 15-amp fuse and the center high mounted stop lamp (CHMSL) 10-amp fuse in the instrument panel (I/P) fuse block, and to the turn signal/hazard module. The turn signal/hazard module then supplies voltage to both of the trailer rear turn/stop lamp supply voltage circuits. The voltage from the CHMSL 10-amp fuse is to the CHMSL and the trailer jumper harness. The voltage from the STOP 15-amp fuse is to the stop lamps, throttle actuator control (TAC) module, and the cruise control.

Apr 08, 2017 | Chevrolet Cars & Trucks

2 Answers

2005 Silverado brake lights on tail not working, cruise out , bulbs and fuses ok


Brake light switch? The cruise and brake lights problems are likely related. The cruise control cuts out when you press on the brakes. I had a van where the cruse wouldn't engage. Then someone pointed out my brake lights were always on. It was the switch.

Dec 03, 2016 | Cars & Trucks

1 Answer

Removing tail light housing on a 1998 chevrolet c1500 van


1 Remove the upper quarter panel appliue
2Remove the nuts(2)that retain the tailam to the upper quarter panel
3Remove the center high mounted stop;am(2)from the center high mounted aplique

Feb 27, 2013 | Cars & Trucks

1 Answer

Center High Mounted Stop Light will not


my light in the back dont come on

May 07, 2010 | 2006 Pontiac G6

2 Answers

I need to replace high 3rd stop light on 1996 pontiac grand am se


  1. Disconnect the negative battery cable.
  2. Pull the center high-mount stop lamp cover to disengage the retaining tabs.
  3. Unfasten the lamp retaining screws.
  4. Remove the sockets using a suitable prybar to release the retaining tabs.
  5. Detach the bulbs from their sockets.
  6. Using a suitable prybar to release the tabs, remove the lamp lens.

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View of the center high-mount stop lamp assembly—1995 Grand Am and Achieva shown

7. Installation is the reverse to install. Connect the negative battery cable, then check the lamp for proper operation.

Jan 18, 2010 | 1996 Pontiac Grand Am

1 Answer

How to cchange the third brake light bulb


1992–98 GRAND AM AND ACHIEVA
  1. Disconnect the negative battery cable.
  2. Pull the center high-mount stop lamp cover to disengage the retaining tabs.
  3. Unfasten the lamp retaining screws.
  4. Remove the sockets using a suitable prybar to release the retaining tabs.
  5. Detach the bulbs from their sockets.
  6. Using a suitable prybar to release the tabs, remove the lamp lens. Fig. 14: View of the center high-mount stop lamp assembly — 1995 Grand Am and Achieva shown

Apr 04, 2009 | 1998 Pontiac Grand Am

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