Table 1 shows one common exterior lighting related problems of the 2011 Buick Lacrosse.
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting problems |
Climate control system. On three occasions the climate control system has switched to heat and high fan, locking the driver out of the controls and causing the passenger compartment to become extremely hot and uncomfortable. I was able to pull over to the side of the road on one occasion, turn the engine off and let the car sit for a few minutes before restarting the car. The system returned to normal. On two of the three occasions, the car was in motion. On one occasion it happened in the garage. Dash lights - while driving at night, all passenger compartment lights went off for about 30 seconds, and then came back on. I took the car to the local dealer and they checked the system, including the battery. They found no computer codes to explain the malfunction.