Electrical System Related Problems of the 2003 Buick Century

Table 1 shows six common electrical system related problems of the 2003 Buick Century. The number one most common problem is related to the electrical system (16 problems). The second most common problem is related to the instrument panel (two problems).

Table 1. Electrical System related problems of Buick Century

Problem Category	Number of Problems
Electrical System problems	16
Instrument Panel problems	2
Alternator/generator/regulator problems	2
Ignition Switch problems	1
Horn Assembly problems	1
Headlights Turn Off While Driving problems	1

Recently reported Electrical System problems of the 2003 Buick Century

The Electrical System problem

When driving at night all lights go out, interior and driving lights, resuming when clicking bright light switch. Driving at 65 mph. Read details...

The Instrument Panel problem

Instrument panel lights go out when emergency brake released and car is put in gear. If car in park with engine running and brake engaged lights on panel are on. However, when lights are manually turned on the panel lights go out. When lights manually turned off the lights go on. Read details...

The Alternator/generator/regulator problem

Loud humming noise from interior of vehicle. One non gm car dealership says it is a defective alternator. Gm dealer says they cannot hear anything and everything is fine. Going on trip next week and afraid of not only alternator failing, but taking battery out wth it. Read details...

Electrical System related problems in other Buick Century model year vehicles:

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✿ Fuel Economy of Century Vehicles

☘ Century Service Bulletins

⚑ Century Safety Recalls

☤ Century Defect Investigations