2005 Buick LeSabre vs 2005 INFINITI QX56
Reliability comparison based on NHTSA recall and complaint records.
2005 Buick LeSabre
2005 INFINITI QX56
Stories from the shop
Buyers cross-shop the 2005 Buick LeSabre and the 2005 INFINITI QX56 but they're solving slightly different problems. The reliability data tells you what breaks on each one. The right pick depends on which set of trade-offs fits your actual driving more than which score is higher.
If you lean 2005 Buick LeSabre, know what you're getting into on electrical and powertrain. Those categories have noticeably more complaints than the 2005 INFINITI QX56 sees, and they're not cheap items when they go.
Going with the 2005 INFINITI QX56? Watch the brakes and fuel system. The 2005 Buick LeSabre has fewer reports in those categories, so you'd be trading one set of weak spots for another.
On the dollars-and-cents side, total repair exposure across the top problem areas runs 1.2x higher on the 2005 Buick LeSabre. 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: pick based on use case more than the spec sheet. If you tow heavy and don't want to think about it, that's one calculation. If you're a daily driver and want the cheapest path forward, that's another. Both of these will get you down the road. We're just telling you where each one is most likely to break.
Side-by-side by problem area
Common questions
Which is more reliable, the 2005 Buick LeSabre or the 2005 Infiniti QX56?
It's close to a tie. Both vehicles score within 0.2 points on our reliability index (4.0 vs 4.0). At this margin, either choice is defensible — base your decision on the specific failure modes that matter to you.
What goes wrong more often on the 2005 Buick LeSabre?
Compared to the 2005 Infiniti QX56, the 2005 Buick LeSabre sees more reported issues in electrical and powertrain. 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 2005 Infiniti QX56?
Compared to the 2005 Buick LeSabre, the 2005 Infiniti QX56 has more complaints in brakes and fuel system. Whether that's a deal-breaker depends on the cost and severity — see the comparison table above for repair cost ranges.
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.