# Service bulletin 4520

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10023417
- Published by NHTSA: 2007\-12\-10
- Manufacturer's number: 4520
- Manufacturer's date: 2007\-10\-01
- NHTSA component: EXTERIOR LIGHTING:HEADLIGHTS

## NHTSA's summary

AUTOMATIC HEADLIGHTS INOPERATIVE UNTIL SHIFTER IS PLACED INTO GEAR. \*NJ

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Lighting, Headlights

## Vehicles listed

- 2006 BUICK RAINIER
- 2006 CHEVROLET TRAILBLAZER
- 2006 CHEVROLET TRAILBLAZER 360
- 2006 CHEVROLET TRAILBLAZER EXT
- 2006 CHEVROLET TRAILBLAZER EXT 370
- 2006 GMC ENVOY
- 2006 GMC ENVOY 360
- 2006 GMC ENVOY DENALI
- 2006 GMC ENVOY DENALI XL
- 2006 GMC ENVOY XL
- 2006 GMC ENVOY XL 370
- 2007 SAAB 9\-7X

## Recalls for the same vehicles and component

- [15V519000](/recalls/nhtsa/15V519000.md), 2015-08-14: EXTERIOR LIGHTING:HEADLIGHTS

## Other bulletins for the same vehicles and component

- [02\-08\-42\-001I](/bulletins/10116890.md), 2017-08-31, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:BRAKE LIGHTS; EXTERIOR LIGHTING:BACK UP LIGHTS. This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not
- [01\-08\-42\-001K](/bulletins/10116874.md), 2017-08-31, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
- [050842005](/bulletins/10017334.md), 2005-11-03, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH. INFORMATION ON VERTICAL REFLECTION FROM HEADLAMPS WHEN USING HIGH BEAMS IN DENSE FOG. \*TT UPDATED 04\-04\-07. \*KB
- [3680](/bulletins/10016544.md), 2005-09-21, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. AUTOMATIC HEADLAMP DEFEAT INOPERATIVE AFTER BCM REPLACEMENT. \*TT
- [010842001](/bulletins/10014497.md), 2005-05-04, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. HEADLAMPS CONDENSATION AND REPLACEMENT GUIDELINES. KAPERII. \*TT 1993\-2008 GM PASSENGER CARS AND TRUCKS INCLUDING SATURN. \*KB UPDATED 2/26/08. \*NJ
- [SB\-020842001B](/bulletins/631244.md), 2002-05-21, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. GENERAL MOTORS VEHICLES AND TRUCKS: SUBJECT REGARDING, 2002 AND PRIOR PASSENGER CARS AND TRUCKS, CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. \*SLC UPDATED \*EH UPDATED 3/30/11. HEADLAMP LENS OVERHEATING WHEN COVERED AND CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. CAN CAUSE CRAZING OR CRACKING OF HEADLAMP LENS. \*PE UPDATED 6/24/11. \*PE UPDATED 5/14/12. INCLUDING 2013 MODEL YEAR. \*PE

JSON: [/v1/bulletins/10023417](/v1/bulletins/10023417)

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