2012 model year · 0+ owner reports · Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2012 Infiniti M37 has 6 documented known issues, with 2 rated critical. The most serious are Steering Wheel Lock Failure / No-Start ($900-$1,500 repair) and Sunroof Drain Leak Causing BCM/Electrical Problems ($150-$3,000 repair). Across all issues, repair costs range from $150 to $3,000. DIY maintenance guides at au7o.io.
On the 2011-2013 Infiniti M37, a well-documented failure on early Y51-platform Infiniti models is the electronic steering column lock (ESCL) malfunction, which can prevent the vehicle from recognizing the ignition sequence and leave the car unable to start. Owners report intermittent no-crank/no-start conditions that often become permanent as the steering lock module or related control logic fails.
Diagnosis typically confirms power and Intelligent Key operation but no start authorization, often with steering lock-related faults stored. Repair usually involves replacing the steering lock assembly or performing the Infiniti service campaign/TSB procedure, then reprogramming as needed; dealer repairs commonly run about $900-$1,500, while some independent shops may be lower if programming capability is available.
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On the 2011-2013 Infiniti M37, clogged or poorly routed sunroof drains can allow water to enter the cabin and soak wiring, connectors, and control modules under the dash or carpet. On the M37, owners commonly report water intrusion leading to erratic electrical behavior, battery drain, warning lights, and in severe cases damage to the BCM or related harnesses.
Diagnosis involves water testing the sunroof drains, inspecting A-pillar and firewall drain routing, and checking for corrosion at connectors and modules. Repair may include clearing or rerouting drains, replacing damaged hose sections, drying the interior, and repairing corroded wiring or modules; minor drain service can be under $250, but BCM/harness damage can push repairs into the $1,200-$3,000 range.
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On the 2011-2013 Infiniti M37, the M37's weight and wheel/tire package contribute to wear in front suspension components such as tension rods, lower control arm bushings, and sway bar end links. Owners frequently report clunks, looseness, vibration under braking, and uneven tire wear as bushings crack or hydraulic-filled components deteriorate.
A proper inspection checks for play in the front lower arms, compression/tension rods, ball joints, and sway bar links, followed by an alignment after repairs. Typical fixes include replacing worn control arms or tension rods in pairs; parts and labor usually total about $400-$1,200 depending on how many components are replaced and whether OEM or aftermarket parts are used.
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On the 2011-2013 Infiniti M37, owners commonly report front brake pulsation and steering wheel shake during moderate to hard braking, often attributed to rotor thickness variation or heat-related rotor distortion. The heavy curb weight of the M37 can accelerate front pad and rotor wear, especially with aggressive driving or low-quality replacement parts.
Diagnosis includes measuring rotor runout and thickness variation, checking pad deposits, and inspecting suspension bushings that can amplify vibration. Repair usually means replacing front rotors and pads together, cleaning hub mating surfaces, and torquing wheels correctly; quality parts and labor generally cost $350-$800 for the front axle.
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On the 2011-2013 Infiniti M37, the VQ37VHR engine can develop intermittent camshaft or crankshaft position sensor failures, causing hard starts, stalling, or reduced performance. Heat and age can degrade the sensors or their signal quality, and owners across Nissan/Infiniti VQ applications frequently report these failures as mileage increases.
Diagnosis is done with a scan tool and live data to identify which sensor is dropping out, followed by checking connector condition and harness integrity. Repair involves replacing the failed camshaft or crankshaft position sensor with a quality OE-equivalent part and clearing codes; typical repair costs range from about $180-$450 depending on which sensor failed and labor access.
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On the 2011-2013 Infiniti M37, some M37 owners report the cabin blower motor becoming noisy, intermittent, or inoperative, sometimes tied to the blower motor itself and sometimes to the fan control module. As the blower ages, worn bearings or electrical faults can reduce airflow or cause the fan to work only at certain speeds.
Diagnosis includes checking blower power and ground, command signals from the HVAC control head, and current draw of the blower motor. Repair usually involves replacing the blower motor and, if needed, the blower control module/resistor equivalent; total cost is commonly about $250-$700 depending on parts source and labor time.
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According to Au7o's analysis of 0+ owner reports, the 2012-2012 Infiniti M37 has 6 documented issues. The most frequently reported are: Steering Wheel Lock Failure / No-Start, Sunroof Drain Leak Causing BCM/Electrical Problems, Premature Front Suspension Wear. Of these, 2 are rated critical and should be addressed promptly.
The 2012-2012 Infiniti M37 has 6 known issues documented across 0+ owner reports. 2 issues are rated critical: Steering Wheel Lock Failure / No-Start and Sunroof Drain Leak Causing BCM/Electrical Problems. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Infiniti M37 issues range from $150 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Steering Wheel Lock Failure / No-Start, typically costs $900-$1,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
A well-documented failure on early Y51-platform Infiniti models is the electronic steering column lock (ESCL) malfunction, which can prevent the vehicle from recognizing the ignition sequence and leave the car unable to start. Owners report intermittent no-crank/no-start conditio… Repairs typically run $900-$1,500. Severity: high.
Clogged or poorly routed sunroof drains can allow water to enter the cabin and soak wiring, connectors, and control modules under the dash or carpet. On the M37, owners commonly report water intrusion leading to erratic electrical behavior, battery drain, warning lights, and in s… Repairs typically run $150-$3,000. Severity: high.
The M37's weight and wheel/tire package contribute to wear in front suspension components such as tension rods, lower control arm bushings, and sway bar end links. Owners frequently report clunks, looseness, vibration under braking, and uneven tire wear as bushings crack or hydra… Repairs typically run $400-$1,200. Severity: medium.
Owners commonly report front brake pulsation and steering wheel shake during moderate to hard braking, often attributed to rotor thickness variation or heat-related rotor distortion. The heavy curb weight of the M37 can accelerate front pad and rotor wear, especially with aggress… Repairs typically run $350-$800. Severity: medium.
The VQ37VHR engine can develop intermittent camshaft or crankshaft position sensor failures, causing hard starts, stalling, or reduced performance. Heat and age can degrade the sensors or their signal quality, and owners across Nissan/Infiniti VQ applications frequently report th… Repairs typically run $180-$450. Severity: medium.
Some M37 owners report the cabin blower motor becoming noisy, intermittent, or inoperative, sometimes tied to the blower motor itself and sometimes to the fan control module. As the blower ages, worn bearings or electrical faults can reduce airflow or cause the fan to work only a… Repairs typically run $250-$700. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
