The Lemon IndexB1018 is a manufacturer-specific code, so its exact meaning depends on the make. Full B1018 page
18 owner complaints · the #1 code Infiniti G37 owners name
Middle of 73,000 miles · most between 48,000 and 88,000 (9 owners gave it)
Infiniti G37 owners named B1018 in 18 complaints to the U.S. government (NHTSA), most often on the 2009, 2012 and 2011 model years, at a middle of 73,000 miles. Complaints are owner reports, not proof of a defect.
Infiniti G37 model years that report B1018
Owner complaints naming B1018, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
Mileage when it happened
73,000 miles is the middle of what 9 owners entered. Half were between 48,000 and 88,000 miles.
The mileage on the complaint form, when the owner gave one.
Keep going
- B1018: meaning, causes and every car that reports it
- Infiniti G37 reliability by year
- 2009 Infiniti G37 problems and recalls
B1018 on other cars
Nissan Rogue (16) · Nissan Murano (12)
The details
How we count
We read every owner complaint in the NHTSA file whose text names this trouble code, and count the ones filed about this model (matched by the make, model and model year on the complaint). Mileage is what the owner entered on the form.
Parts: a complaint counts for a part when one of the owner's own sentences names that part together with a cause word (failed, bad, diagnosed, caused by, leaking ...) or a repair word (replaced, repaired, new, reprogrammed ...). "Came back" means the same complaint also says the problem returned or the repair didn't fix it. These are counts of what owners wrote, not a diagnosis, and one complaint can name several parts.
Complaints are reports, not proof of a defect, and most owners never file one. Popular models get more complaints, so the counts are not a failure rate. The code meaning is the standard SAE J2012 definition in our own words, or the carmaker's meaning where we verified it for that make.
What B1018 means
B1018 is a manufacturer-specific code: each carmaker decides what it means, so the same code can point to different problems on different brands. We haven't verified its meaning for Infiniti yet. A dealer or a scanner with the maker's software can tell you exactly.
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11636239, 11630885, 11586047, 11574019, 11562407, 11525940, 11515842, 11500015, 11493616, 11478965, 11394289, 11385800 and 6 more.
Quick answers
Which Infiniti G37 years have the most B1018 complaints?
In complaints to NHTSA, owners of the 2009 (9), 2012 (4), 2011 (3) Infiniti G37 named B1018 most (18 complaints in all, 2009–2012). Raw counts, not a failure rate.
At what mileage does B1018 show up on a Infiniti G37?
Owners who gave their mileage reported a middle of 73,000 miles; half were between 48,000 and 88,000 (9 owners).
Sources: NHTSA owner complaints that name B1018 on the Infiniti G37, counted by The Lemon Index; NHTSA recalls; repair bills owners named. Meanings: SAE J2012 in our own words. Owner reports, not a diagnosis or repair advice for your car.