This page covers 1 recall, 49 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2011 Buick Lucerne.
18–21 mpg combined
11.2–13.1 L/100km
Large Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 2 tested variants for this model year.
3/5 Overall
NHTSA 5-Star Safety Rating
Electrical issues dominate what 2011 Buick Lucerne owners report, accounting for the largest share of complaints by a wide margin. The most commonly described problems involve the electrical system broadly, with several owners reporting starting failures, unexpected power loss while driving, and fuel pump relay overheating, the relay complaint describes temperatures high enough to melt the associated fuse, leaving the car unable to run until the fuse is swapped. A smaller cluster of complaints touches on vehicle speed control, though the volume there is much lower. The powertrain generates a handful of reports as well. Outside the main electrical thread, individual owners mention issues like a repeatedly failing interior door handle and an instrument cluster that may not match the vehicle's original configuration, though these appear in isolated reports rather than as recurring patterns.
49
Total Complaints
3
Crash-Related
3
Fire-Related
3
With Injuries
By System
At a glance
What can fail
The starter or alternator cable rubs against the power steering return line. Over time, the cable can wear through the line and cause power steering fluid to leak.
What the fix does
Dealers will secure and reroute the cables to stop them from contacting the power steering line. The repair is free.
Summarized — see the official notice for exact wording, dates, and contacts.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP). Based on 2 tested variants; worst-case ratings shown.
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
