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 — then open the year you're shopping for a full reliability and repair-cost forecast.
Mercury Grand Marquis problems by model year
69 recall entries and 3009 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 lighting849 complaints
- engine and engine cooling357 complaints
- electrical system311 complaints
- vehicle speed control303 complaints
- steering302 complaints
- service brakes206 complaints
- air bags189 complaints
- hydraulic171 complaints