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Infiniti M45Model year report

2008 Infiniti M45 Problems

Complaints
6filed with NHTSA
Median mileage
101,480miles, 3 complaints with mileage
Recalls
5campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
18 mpgcombined, 4.5L 8-cyl RWD · 16 city / 21 hwy

Sources: NHTSA records for the 2008 Infiniti M45 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 6 consumer complaints for the 2008 Infiniti M45. The part named most often is air bags, with 3 complaints (50% of the total), followed by engine (2) and steering (1). 3 of the complaints include a mileage, and 33% of those were filed for vehicles with under 50,000 miles; the median is 101,480 miles. NHTSA lists 5 recall campaigns and 92 technical service bulletins for this model year. Air bags complaints overlap with 3 recall campaigns covering the inflator module and 10 technical service bulletins filed under the same part. Engine complaints overlap with 1 technical service bulletin filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Air bags: “Takata air bag recall we received a safety recall 16v-349 around august 1, 2016. Contacted local Infiniti dealer and they have not received the replacement. Could expect it in 4 to 6 weeks. Expected time came and went and we were told it would be another month to 6 weeks. Advised to not let anyone sit in the front passenger seat as airbag could explode without warning. It is difficult for me to get in and out of back seat due to health problems.”

NHTSA complaint #10934114, filed 2016-12

Engine: “Sitting at a light the first time and the engine stalled out in idle mode. The 2nd timein the same day I was driving in the neigborhood and going maybe 15miles per hour and the car turned off with no warning or reason. It looks to me that the accelerator pedal assembly and enging control module needs to be replaced along with TPMS lamp”

NHTSA complaint #10749969, filed 2015-08, 101,480 miles

Steering: “While driving east (uphill) on I-90 from seattle toward snoqualmie pass, my car suddenly and unexpectedly veered into the adjacent lane, literally tearing/turning the steering wheel out of my hands. I pulled off the freeway to let my heart rate slow down. On my return trip, downhill, the same terrifying experience occurred, narrowly avoiding a collision with a truck. A bit of internet research revealed that this experience is called tramlining and that many Infiniti models/years have been reported to suffer from it. …”

NHTSA complaint #10495018, filed 2013-01, 25,000 miles

Mileage when problems were reported

33% of the 3 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 25,000 and 129,000 miles.

0%0–100%10–2533%25–500%50–750%75–10067%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (3 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 101,480 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

201320152016220172021
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2008 Infiniti M45 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
M45 RWD4.5L 8-cyl5-speed automatic162118$4,550
M45x 4WD/AWD4.5L 8-cyl5-speed automatic142016$5,150

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2008 Infiniti M45 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 92 on record; the latest 10 are shown.

See all 92 bulletins →

Other model years of the Infiniti M45

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20086101,4805—18—Not enough data
20072792,0004—18Not compared (before 2008)Falling
20067274,2505—18Not compared (before 2008)Falling
20044383,1592—18Not compared (before 2008)Stable
200312995,9002—18Not compared (before 2008)Falling

All Infiniti M45 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2008 Infiniti M45 have?

NHTSA recorded 6 consumer complaints for the 2008 Infiniti M45 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2008 Infiniti M45 is reported most often?

Air bags is named most often, in 3 complaints (50% of the total), followed by engine with 2.

Has the 2008 Infiniti M45 been recalled?

NHTSA lists 5 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2008 Infiniti M45 get?

The EPA rates the 2008 Infiniti M45 (M45, 4.5L 8-cyl) at 18 mpg combined, 16 city and 21 highway, with an estimated annual fuel cost of $4,550 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2008 Infiniti M45 reported?

Among the 3 complaints that include a mileage, the median is 101,480 miles and the middle half falls between 25,000 and 129,000 miles; 33% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.