Is Buick reliable?
52% of the 35 Buicks we inspected scored 60/100 or higher, averaging 57/100 — they tend to be in slightly worse shape than average.
35
Buicks inspectedreal pre-purchase inspections57/100
Average conditionall cars we check: 61/100Based on 35 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
63%
Tires condition & wear · Brakes and tires
43%
Fuel trim out of range · Engine
40%
Active error codes · Electronic equipment
37%
Oil leaks · Automatic transmission
23%
Share of inspected Buicks where each item was flagged.
How they score
Excellent 23%
Good 29%
Mediocre 20%
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
Buick models we've inspected
Enclave
11 cars · profile soon
Recently inspected:
2019 Buick Enclave · 97k mi — flagged: exhaust system leaks, oil leaks, smoothness. Inspected Aug 30.
2015 Buick Regal · 59k mi — flagged: oil leaks, battery condition, charging voltage. Inspected Aug 24.
The bottom line
On a used Buick, treat the engine as the first and last checkpoint. Oil leaks hit 63 percent of them and often travel with fuel-trim issues plus transmission seepage, so get it on a lift and demand a scan before you haggle. Tires and leftover error codes are the other frequent weak spots and give you clear grounds to negotiate or walk. Resprays are typical and structural repairs did not show up, so do not overreact to paint. Buy if it is dry underneath and code-free; otherwise cut the price hard or move on.
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 (63%), tires condition & wear (43%), fuel trim out of range (40%).
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Based on 35 inspections · updated Sep 11, 2026
