Infiniti · Known Issues

2015 Infiniti Q70 Problems: 4 Known Issues

2015 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Infiniti Q70 has 4 documented known issues, with 2 rated critical. The most serious are Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000) ($0-$0 repair) and Timing Chain Tensioner Failure ($1,500-$3,500 repair). Across all issues with published estimates, repair costs range from $200 to $3,500. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Infiniti Q70 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Infiniti Q70 has 4 documented issues. The most frequently reported are: Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000), Timing Chain Tensioner Failure, Bose Amplifier Failure from Trunk Water Intrusion. Of these, 2 are rated critical and should be addressed promptly.

Is the Infiniti Q70 reliable?

The 2015 Infiniti Q70 has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000) and Timing Chain Tensioner Failure. 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.

How much does it cost to fix common Infiniti Q70 problems?

Repair costs for known Infiniti Q70 issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000), typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2014-2019 Infiniti Q70 Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000)?

Rear-wheel-drive Q70 sedans use a two-piece propeller shaft that can fatigue and break in service. When it fractures the car loses drive power immediately, and because the transmission parking pawl is no longer connected to the rear wheels the vehicle can roll away in Park unless… Repairs typically run $0-$0. Severity: high.

What is the 2014-2019 Infiniti Q70 Timing Chain Tensioner Failure?

The VQ37VHR and VQ35HR engines in the M/Q70 series develop timing chain tensioner wear, leading to chain rattle on startup and potential chain skip. The hydraulic tensioners lose their ability to maintain proper chain tension as the internal check valve wears. Repairs typically run $1,500-$3,500. Severity: high.

What is the 2014-2019 Infiniti Q70 Bose Amplifier Failure from Trunk Water Intrusion?

The Bose amplifier that drives the Q70's speaker system is mounted low in the trunk, where it is directly exposed to any water that gets past the trunk lid seal, the tail lamp gaskets, or a plugged sunroof drain routed down the C-pillar. Water pools around the amplifier, corrodes… Repairs typically run $250-$1,400. Severity: medium.

What is the 2014-2019 Infiniti Q70 Climate Control Stuck in Auto and Blend Door Actuator Failure?

Two related HVAC complaints run through the Q70. The first is a control-side fault where the climate system refuses manual input and stays locked in Auto, or the panel stops responding entirely after a reset — a software or HVAC control unit failure rather than anything mechanica… Repairs typically run $200-$1,200. Severity: medium.

2015 Infiniti Q70 Problems: 4 Known Issues

All 4 Known Issues

2014-2019 Infiniti Q70: Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000)#

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2014-2019 Infiniti Q70: Timing Chain Tensioner Failure#

Common Symptoms

How to Fix

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2014-2019 Infiniti Q70: Bose Amplifier Failure from Trunk Water Intrusion#

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2014-2019 Infiniti Q70: Climate Control Stuck in Auto and Blend Door Actuator Failure#

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Other Infiniti Models

Frequently Asked Questions

What are the most common Infiniti Q70 problems?

Is the Infiniti Q70 reliable?

How much does it cost to fix common Infiniti Q70 problems?

What is the 2014-2019 Infiniti Q70 Driveshaft Fatigue Fracture Causing Loss of Drive Power (Recalls 20V755000 and 24V470000)?

What is the 2014-2019 Infiniti Q70 Timing Chain Tensioner Failure?

What is the 2014-2019 Infiniti Q70 Bose Amplifier Failure from Trunk Water Intrusion?

What is the 2014-2019 Infiniti Q70 Climate Control Stuck in Auto and Blend Door Actuator Failure?