Even strong cases can fail due to simple mistakes.

Mistake #1: Waiting Too Long
Deadlines are strict:
24 months / 24,000 miles
Filing deadlines shortly after 

Mistake #2: Poor Documentation
No records = weak case.

Mistake #3: Not Sending Written Notice
You must notify the manufacturer.

Mistake #4: Too Few Repair Attempts
You must give a reasonable chance to fix.

Mistake #5: Assuming Minor Issues Qualify
Only serious defects count.

Final Thoughts
Avoiding these mistakes can dramatically improve your chances of winning your case.