Is Buick reliable?
49% of the 31 Buicks we inspected scored 60/100 or higher, averaging 56/100 — they tend to be in noticeably worse shape than average.
31
Buicks inspectedreal pre-purchase inspections56/100
Average conditionall cars we check: 61/100Based on 31 used Buicks we inspected, they tend to be in noticeably worse shape than average — average condition 56/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Oil leaks · Engine
65%
Tires condition & wear · Brakes and tires
45%
Active error codes · Electronic equipment
42%
Fuel trim out of range · Engine
42%
Lights not working · Equipment
23%
Share of inspected Buicks where each item was flagged.
How they score
Excellent 23%
Good 26%
Mediocre 23%
Poor 29%
Hidden history
What the seller might not mention — how often we find it on Buicks.
74%had a repainted or replaced panelall cars: 75%
0%showed structural repairall cars: 4%
23%had fault codes recently clearedall cars: 23%
Compare with another brand:
Cross-shopping? Buick vs Toyota · Buick vs Honda · Buick vs Ford
The bottom line
Buicks lean rough, with engine troubles leading the pack—oil leaks hit 65 percent of them and fuel-trim faults trail close. That points to skipped services more than broken designs, and the complete lack of structural repairs is reassuring. Begin every inspection under the hood for seepage and pull codes immediately. Tires and lights matter less; wet engines or out-of-range trims justify walking or a steep discount for repairs. Solid ones are out there if you hunt carefully.
FAQ
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What are the most common problems with a used Buick?
Across the Buicks we inspected, the items we flag most often are oil leaks (65%), tires condition & wear (45%), active error codes (42%).
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Based on 31 inspections · updated Aug 12, 2026
