Turn signal malfunction

An NHTSA Engineering Analysis into Chevrolet vehicles. Closed 22 November 2004.

Investigation
EA04028
Type
Engineering Analysis
Opened
14 September 2004
Closed
22 November 2004

What NHTSA investigated

On may 14, 2004 the office of defects investigation (odi) opened a preliminary evaluation (PE04-043) based on consumer complaints alleging that the brake/tail turn signal lamps would not operate properly when either the tail lights were turned on, the brake pedal was depressed, or when the turn signal switch was activated.on september 14, 2004 odi upgraded pe 04-043 to an engineering analysis (EA04-028).GM states that some brake/tail/turn signal lamp bulbs can prematurely become inoperative due to excessive heat buildup within the bulb sockets.the cause of the excessive heat build up was determined to be a lack of thermal grease placed in between the bulb and the socket. By letter dated october 27, 2004 GM notified NHTSA that it will conduct a safety recall (NHTSA # 04V524) covering all my 2003 vehicles.gm dealers will inspect the rear lamp bulb socket assemblies and apply thermal grease to them or replace them with new assemblies with thermal grease already attached.model year 2004 and newer vehicles have the thermal grease installed from the factory. The action taken by GM is sufficient to resolve the issues raised by this investigation.accordingly, this investigation is closed.

The recall that followed

  1. Chevrolet — Exterior Lighting: Turn Signal04V5240001 November 2004256,025 vehicles

Vehicles covered

MakeModelModel years
ChevroletCAVALIER2003
PontiacSUNFIRE2003

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.