Infiniti Qx80 Years to AvoidThe weakest years — and the one you should buy instead
After reviewing every Infiniti Qx80 we've analyzed (15 years), these are the 2 weakest. Each one has either an absolute low reliability score, chronic repair issues, or unusually high ownership costs relative to other Qx80 years.
Proceed with caution
2013 Infiniti Qx80
The 2013 Infiniti QX80 offers impressive luxury and capability, but it's not without its specific, high-cost mechanical vulnerabilities. While the core engine and transmission are robust when maintained, neglect of key systems like the timing chain or Hydraulic Body Motion Control (HBMC) system can lead to five-figure repair bills, demanding a meticulous pre-purchase inspection and a robust maintenance fund.
Why this year scores low
The plastic guides on the timing chain can wear prematurely, leading to chain slack and a rattling noise, especially on cold starts. If not addressed, this can cause significant engine damage or catastrophic failure.
Available on higher trims, this complex hydraulic suspension system is prone to leaks, pump failures, or accumulator issues, leading to poor ride quality, sagging, or warning lights. Repairs are extremely expensive due to specialized components.
For models with rear air suspension, the air springs (bags) or compressor can fail, causing the rear end to sag, particularly overnight or when parked for extended periods. This impacts ride comfort and load leveling.
Proceed with caution
2015 Infiniti Qx80
The 2015 Infiniti QX80 is a powerful and luxurious SUV, built on a robust truck platform, offering generally solid powertrain reliability. However, its complex Hydraulic Body Motion Control (HBMC) system poses a significant, costly long-term risk that potential owners must understand and budget for, shifting it into a 'proceed with caution' category for value-conscious buyers.
Why this year scores low
The HBMC system, which uses hydraulic pressure instead of traditional sway bars, is prone to leaks from shock absorbers, lines, or pump failures. This can lead to poor ride quality, excessive body roll, and eventually system failure, requiring expensive repairs or replacement.
Due to the QX80's substantial curb weight, brake components (rotors and pads) experience accelerated wear. Owners frequently report warped rotors causing pulsing, requiring more frequent replacement than typical vehicles. Caliper issues are less common but can occur.
Common complaints include infotainment screen freezing, navigation glitches, Bluetooth connectivity issues, and occasional sensor failures (e.g., parking sensors, TPMS). Battery drain can also occur due to parasitic draws from various modules.