Is Buick reliable?
50% of the 32 Buicks we inspected scored 60/100 or higher, averaging 56/100 — they tend to be in slightly worse shape than average.
32
Buicks inspectedreal pre-purchase inspections56/100
Average conditionall cars we check: 61/100Based on 32 used Buicks we inspected, they tend to be in slightly 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
63%
Tires condition & wear · Brakes and tires
47%
Active error codes · Electronic equipment
41%
Fuel trim out of range · Engine
41%
Lights not working · Equipment
22%
Share of inspected Buicks where each item was flagged.
How they score
Excellent 22%
Good 28%
Mediocre 22%
Poor 28%
Hidden history
What the seller might not mention — how often we find it on Buicks.
75%had a repainted or replaced panelall cars: 75%
0%showed structural repairall cars: 4%
22%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
Oil leaks and fuel-trim problems keep showing up on the engine side, so the first move is to get under the car and run a full diagnostic before you negotiate. Worn tires are another frequent hit and give you a clean reason to knock the price down. Repaints match the usual rate and there is zero structural work, which is reassuring, but active error codes or dead lights should make you walk unless the seller already fixed them. Condition splits pretty evenly between decent and disappointing, so only buy the ones that clear those engine and electronics checks.
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 (47%), active error codes (41%).
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Based on 32 inspections · updated Aug 22, 2026
