Interior Lighting Related Problems of the 1999 GMC Sierra

Table 1 shows one common interior lighting related problems of the 1999 GMC Sierra.

Table 1. Interior Lighting related problems of GMC Sierra

Problem Category	Number of Problems
Interior Lighting problems	1

Interior Lighting problem

All headlights an d interior lighting will flicker when they are on, or they will become extremely bright and then become dim. Dealer claims this is normal characteristic of vehicle ,there is no solution.

Interior Lighting related problems in other GMC Sierra model year vehicles:

Interior Lighting problems of the 1996 GMC Sierra
Interior Lighting problems of the 2000 GMC Sierra
Interior Lighting problems of the 2001 GMC Sierra
Interior Lighting problems of the 2005 GMC Sierra

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✿ Fuel Economy of Sierra Vehicles

☘ Sierra Service Bulletins

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☤ Sierra Defect Investigations