2011 Buick LaCrosse vs 2011 Mercury Grand Marquis
Reliability comparison based on NHTSA recall and complaint records.
2011 Buick LaCrosse
2011 Mercury Grand Marquis
Stories from the shop
These come from different vehicle segments, which means we're not declaring a winner here. The 2011 Buick LaCrosse scores 3.8; the 2011 Mercury Grand Marquis scores 4.5. Different testing populations, different driving patterns, different categories of failure. Use the data below to understand what each one is good at and what each one breaks.
If you lean 2011 Buick LaCrosse, know what you're getting into on electrical and suspension. Those categories have noticeably more complaints than the 2011 Mercury Grand Marquis sees, and they're not cheap items when they go.
On the dollars-and-cents side, total repair exposure across the top problem areas runs 14.2x higher on the 2011 Buick LaCrosse. That's the number to keep in mind when you're pricing the deal — a $2,000 difference in purchase price disappears the first time you're staring at a transmission rebuild.
Bottom line: these are different categories of vehicle. Pick based on what you actually need it for. We're showing the reliability data so you can factor in long-term ownership cost, not pick a winner.
Side-by-side by problem area
Common questions
Which is more reliable, the 2011 Buick LaCrosse or the 2011 Mercury Grand Marquis?
Based on the NHTSA data we track, the 2011 Mercury Grand Marquis comes out ahead with a reliability score of 4.5 versus 3.8. The margin is clear, so the verdict could shift if you weight specific categories differently or factor in your own use case.
What goes wrong more often on the 2011 Buick LaCrosse?
Compared to the 2011 Mercury Grand Marquis, the 2011 Buick LaCrosse sees more reported issues in electrical and suspension. That doesn't mean it's a bad truck — it means those are the categories worth budgeting for if you go that direction.
What goes wrong more often on the 2011 Mercury Grand Marquis?
On the categories we tracked, the 2011 Mercury Grand Marquis doesn't show meaningfully more complaints than the 2011 Buick LaCrosse. The two are running close.
Which has more recalls?
Both vehicles have 0 active recalls. Total recall count alone isn't a great signal — what matters is severity. See the recall counts by severity in the comparison table.
Is an extended warranty worth it on either of these?
Both vehicles are out of factory bumper-to-bumper coverage at this point. Combined repair exposure across the top problem categories runs around $12,050 on the higher-risk vehicle. A quality service contract typically costs $1,800–3,500 over 3 years, so a single major failure usually pays for the contract. The math favors warranty coverage on whichever vehicle you choose, especially if you plan to keep it past 100,000 miles.