Is Buick reliable?
45% of the 31 Buicks we inspected scored 60/100 or higher, averaging 57/100 — they tend to be in slightly worse shape than average.
31
Buicks inspectedreal pre-purchase inspections57/100
Average conditionall cars we check: 61/100Based on 31 used Buicks we inspected, they tend to be in slightly worse shape than average — average condition 57/100 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 19%
Good 26%
Mediocre 32%
Poor 23%
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 Ford · Buick vs Honda
The bottom line
These Buicks tend to look cleaner than they run. Oil leaks hit nearly two-thirds of them and pair with out-of-range fuel trims and active error codes, so the engine bay and a proper scan tool are your first stops—ignore the shiny panels. Tires are the other frequent weak spot. Zero structural repairs means you can skip the frame anxiety and put your energy into negotiating hard over those leaks and electronics, or walking if the seller won't address them before the sale.
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 1, 2026
