The 1977MERCURYMONARCH carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort.
Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities.
No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 1977 MONARCH is power train:automatic transmission with 1 filings, followed by tires (1).
Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause.
NHTSA currently has 22 investigation files overlapping the 1977 MONARCH.
Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Total Complaints
2 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
Component
Count
Crashes
Fires
POWER TRAIN:AUTOMATIC TRANSMISSION
1
0
0
TIRES
1
0
0
Recent Complaints
20000926TIRES
THE FIRESTONE 721 P195/75-14 TIRES HAVE EXPERIENCED MULTIPLE FAILURES, BLOWOUTS AND BULGES IN THE TIRE. *MJS
19950802POWER TRAIN:AUTOMATIC TRANSMISSION
AUTOMATIC TRANSMISSION FAILURE AT 21K ORIGINAL MILES. TT
How many complaints does the 1977 MERCURY MONARCH have?▼
The 1977 MERCURY MONARCH has 2 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1977 MERCURY MONARCH?▼
The most-complained component for the 1977 MERCURY MONARCH is POWER TRAIN:AUTOMATIC TRANSMISSION with 1 complaints. Other frequently reported areas include TIRES.
Is the 1977 MERCURY MONARCH safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no
number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 1977 MERCURY MONARCH; no figure is typed in by an editor. See our
editorial standards & corrections policy, the
methodology behind these numbers, or
report a data error. Data current as of August 2026.