Exterior Lighting Related Problems of the 2019 GMC Sierra

Table 1 shows one common exterior lighting related problems of the 2019 GMC Sierra.

Table 1. Exterior Lighting related problems of GMC Sierra

Problem Category	Number of Problems
Headlights problems	2

Headlights problem #1

Hid headlights flicker/shake when driving over any size bump, or when you close the vehicle door.

Headlights problem #2

The headlights flicker violently when driving at any speed. According to the dealer the issue is normal. It is very distracting to drive at night and likely distracting on coming traffic. The truck now has 13k miles and has gotten worse to the point we don't drive it at night.

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

Turn Signal Switch problems of the 1996 GMC Sierra
Turn Signal Switch problems of the 1998 GMC Sierra
Turn Signal Switch problems of the 2002 GMC Sierra
Turn Signal Switch problems of the 2004 GMC Sierra
Turn Signal Flasher Unit problems of the 2000 GMC Sierra
Turn Signal problems of the 1996 GMC Sierra
Turn Signal problems of the 1998 GMC Sierra

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✿ Fuel Economy of Sierra Vehicles

☘ Sierra Service Bulletins

⚑ Sierra Safety Recalls

☤ Sierra Defect Investigations