RoadVitals

2009 INFINITI M Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Latest Jan 3, 2012
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2009 INFINITI M, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Powertrain (other)1100.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

1
report

From owner reports, verbatim

I RECENTLY BOUGHT A 2009 INFINITI M35. MY VEHICLE AND PROBABLY MANY OTHER 2009 INFINITIS WITH THE 7-SPEED TRANSMISSION HAS THE FOLLOWING ISSUES: 1) HARSH DOWNSHIFTS: THE VEHICLE SUDDENLY DOWNSHIFTS AND THIS ACTION BRAKES THE VEHICLE SIGNIFICANTLY WITHOUT THE DRIVER'S WILL. IF THERE IS ANOTHER VEHICLE FOLLOWING CLOSELY IT MIGHT CRASH THE INFINITI FROM BEHIND. 2) LAG OF POWER: SOMETIMES THE CAR IS "SEARCHING" FOR THE RIGHT GEAR, RESULTING IN A LAG OF POWER. THIS IS VERY DANGEROUS ESPECIALLY WHILE MERGING INTO HIGHWAYS SINCE THE CAR SOMETIMES DELAYS/REFUSES TO ACCELERATE. 3) DOWNSHIFTS AT WRONG TIME: I WILL DESCRIBE THIS ISSUE USING AN EXAMPLE. ASSUME YOU MAKE A FULL STOP AT A STOP SIGN. THE CAR STILL HAS 2ND OR 3RD GEAR EVEN IF THE CAR HAS STOPPED COMPLETELY. WHEN YOU BEGIN ACCELERATING THE CAR DOWNSHIFTS TO 1ST GEAR, WHICH PUSHES THE CAR FORWARD IN A VERY HARSH WAY. VERY DANGEROUS IN CITY DRIVING. (IMAGINE WHAT HAPPENS WHEN YOU DOWNSHIFT FORM 3RD OR 2ND GEAR TO 1ST GEAR WHILE THE CAR IS MOVING WITH 5-10MPH AND 2500RPM). THIS ABOVE ISSUES EXIST NOT ONLY IN THE 2009 M35 MODEL BUT IN OTHER MODELS WITH THE 7-SPEED TRANSMISSION LIKE THE 2009 G37 AND OTHERS. THE ISSUE PROBABLY EXISTS IN LATER YEAR MODELS. ON 1/2/2012 I HAD A CALL WITH INFINITI CUSTOMER AFFAIRS, THEY VERIFIED THAT INFINITI IS AWARE OF THE ISSUE AND THAT THEY ARE WORKING ON A SOFTWARE UPDATE. HOWEVER, SOME VEHICLES HAVE BEEN ALREADY 3-YEARS OLD AND THEIR OWNERS ARE STILL WAITING FOR A FIX. MOREOVER INFINITI RELEASED TECHNICAL BULLETIN ITB09-032B TO ADDRESS THE HARSH DOWNSHIFT ISSUE, BUT IN MY OPINION THAT ONLY PARTIALLY IMPROVED THE ISSUE. THERE ARE PLENTY OF INTERNET SITES WHERE MANY OTHER INFINITI CUSTOMERS COMPLAINT ABOUT THE 7-SPEED TRANSMISSION. HERE IS JUST ONE LINK. HTTP://TOWNHALL-TALK.EDMUNDS.COM/WEBX/.F1FBF24?DISPLAYRECENT. *TR

NHTSA ID 10442230 · filed Jan 3, 2012

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .