Reliability & cost of ownership
Mercury Grand Marquis Reliability & Common Problems
How reliable is the Mercury Grand Marquis? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars where on file — then open the year you're shopping for its AI reliability outlook where NHTSA has enough data.
Mercury Grand Marquis problems by model year
69 recall entries and 3,015 owner complaints on file across 17 model years, sourced from the federal NHTSA database.
Most-complained-about components
Owner complaints filed with NHTSA against the Mercury Grand Marquis, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- exterior lighting851 complaints
- engine and engine cooling357 complaints
- electrical system311 complaints
- steering306 complaints
- vehicle speed control303 complaints
- air bags189 complaints
- service brakes, hydraulic171 complaints
- suspension165 complaints