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Engine Problems and Maryland & D.C. Lemon Law

Models in our directory with the most NHTSA owner complaints about engine problems, model years 2022 and newer.

Written by Amir Guerami, Attorney· Last reviewed

Most engine complaints by model year

NHTSA owner complaints as of November 6, 2026. Counts include NHTSA Engine and Engine and Engine Cooling entries.

Complaint counts come from NHTSA and are unverified owner reports. A high count does not mean every vehicle has the problem or that you have a claim.

How repeat engine repairs fit the lemon law thresholds

The lemon laws look at your vehicle's own repair history, not at complaint counts for a model. If the same engine problem keeps coming back after repairs, these are the thresholds that create a presumption:

  • Maryland (Md. Code, Com. Law § 14-1502): 4 or more repair attempts for the same defect, 30 or more cumulative days out of service, or 1 repair attempt for a brake or steering failure that still fails Maryland safety inspection standards.
  • D.C. (D.C. Code § 50-502(d)): 4 or more repairs for the same non-safety problem, 1 or more repairs for a safety-related problem, or 30 or more cumulative days out of service.

Both laws also require the problem to be reported within the coverage period. General information, not legal advice.

Maryland Lemon Law guide · D.C. Lemon Law guide

Build your repair file

  • Dated repair orders with mileage and diagnosis
  • Whether the same symptom returned after the repair
  • Days unavailable, rental bills and dealer correspondence
  • Purchase or lease contract and warranty documents
Track visits in the Repair Log

Does your vehicle qualify?

Answer five questions about your repairs, or ask us to review your file for free.