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Lion Lemon

2020 · Compact Sedan

Infiniti Q40 Lemon Law

Experiencing problems with your Infiniti Q40? Our California lemon law attorneys can help you get the compensation you deserve.

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Common Infiniti Q40 Problems

VQ37VHR 3.7L V6 engine throttle body electronic failure causing erratic idle speed, stalling at stops, and intermittent loss of throttle response. The electronic throttle control actuator motor develops internal resistance, and the throttle position sensor provides inconsistent signals to the ECM.
VQ37VHR gallery gasket oil leak at the front timing cover causing a slow but persistent external oil leak. The composite gasket between the timing cover and engine block deteriorates, and oil weeps onto the front subframe and steering rack, potentially compromising power steering components.
Seven-speed automatic transmission conductor plate (valve body electronics) failure causing erratic shifting, failure to upshift, and transmission fault warning lights. The conductor plate circuit board cracks from thermal stress and vibration, losing communication with shift solenoids.
Front wheel bearing hub assembly premature failure producing a humming or growling noise that increases with vehicle speed. The sealed bearing units develop excessive play within 40,000 to 60,000 miles, and the ABS wheel speed sensor integrated into the hub may also fail, triggering ABS and traction control warnings.
HVAC blower motor resistor and blower motor failures causing the climate control fan to operate only on high speed or not at all. The resistor pack overheats due to inadequate thermal protection, and the blower motor brushes wear prematurely, leaving occupants without cabin ventilation or defrosting capability.

Your California Lemon Law Rights

Under California's Song-Beverly Consumer Warranty Act, if your Infiniti Q40 has a substantial defect that cannot be repaired after a reasonable number of attempts, you may be entitled to:

  • Full refund of the purchase price
  • Replacement vehicle of comparable value
  • Cash compensation (cash-and-keep settlement)
  • Attorney's fees paid by the manufacturer

Infiniti Q40 Lemon Law FAQ

My Q40 stalls unexpectedly at intersections. Is this a safety defect under California Lemon Law?

Yes. Unexpected stalling is one of the most recognized safety defects under the Song-Beverly Consumer Warranty Act. A vehicle that stalls at intersections puts the driver, passengers, and other motorists at serious risk of collision. Under California law, safety-related defects may require only two repair attempts before the vehicle is presumed to be a lemon.

The Q40 is essentially a rebadged Q50. Does that matter for my California lemon law claim?

No. Your lemon law claim is based on the specific vehicle you purchased and the warranty Infiniti provided for that vehicle. Regardless of platform sharing between the Q40 and Q50, the Song-Beverly Act evaluates whether your particular Q40 has a defect that the manufacturer cannot repair. Platform commonality may actually help demonstrate that the defect is widespread and known to the manufacturer.

I only have two repair attempts documented for my Q40 but the car has been at the dealer for over 30 days. Do I have a claim?

Yes. Under the Song-Beverly Act, a vehicle is presumed to be a lemon if it has been out of service for a cumulative total of more than 30 calendar days due to warranty repairs. You do not need four repair attempts if the 30-day threshold is met. Keep records of every day the vehicle was at the dealership, including dates dropped off and picked up.

Infiniti says the HVAC blower issue in my Q40 does not substantially impair the vehicle. Are they right?

Not necessarily. California courts have held that defects affecting climate control and windshield defrosting can substantially impair a vehicles use and safety. A non-functioning blower motor means you cannot defrost or defog your windshield, which is a safety hazard. The determination of substantial impairment is ultimately a question of fact, and a lemon law attorney can evaluate the strength of your specific case.

Other Infiniti Models We Cover

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