2018 Infiniti Q70L
Problems, Recalls & Reliability Report
Quick Summary
The 2018 Infiniti Q70L has 5 owner complaints filed with NHTSA — that's 1.0x the segment average of 5. The most common issue is air bags problems (60% of all complaints), specifically: i have an immaculately maintained 2018 infiniti q70l, but the ocs system began having issues at under 75k miles. originally, the problem was the passenger seat sensor not detecting someone in the seat, so airbags were disabled. this occured sporadically for a year, but no codes were detectable by . There is 1 recall issued for this model year.
5
Total Complaints
1
Recalls Issued
—/5
Safety Stars
1.0x
vs Segment Avg
Known Problems(top 3 of 3)
AIR BAGS
3 complaints- • I have an immaculately maintained 2018 Infiniti Q70L, but the OCS system began having issues at under 75k miles. Originally, the problem was the passenger seat sensor not detecting someone in the seat, so airbags were disabled. This occured sporadically for a year, but no codes were detectable by
- • The Passenger Occupant Classification System in the passenger seat is showing an airbag code of B00A0-02 on my 2018 Infiniti Q70L . The dealer cannot clear that code. The only solution is to replace the entire seat bottom (leather/foam/all electronics for raising the seat) all integrated. That part
- • Component/system failed: Passenger seat occupant classification/seat weight sensor associated with the Supplemental Restraint System (SRS). Repair facility stated moisture or prior moisture intrusion likely affected the sensor. The failed component should be available for inspection upon request. Sa
“I have an immaculately maintained 2018 Infiniti Q70L, but the OCS system began having issues at under 75k miles. Originally, the problem was the passenger seat sensor not detecting someone in the seat, so airbags were disabled. This occured sporadically for a year, but no codes were detectable by ”
— NHTSA complaint filing
Recalls (1)
Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.
Risk: A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is in park without the parking brake applied. Both scenarios can increase the risk of a crash.
Fix: Dealers will replace the driveshaft, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact INFINITI's customer service at 1-800-662-6200. INFINITI's numbers for this recall are R24A5 and R24A7.
Estimated Insurance Cost for 2018 Infiniti Q70L
How this estimate is calculated
Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.
Maintenance & Warranty
Infiniti New-Vehicle Warranty Coverage
These are the terms for a new Infiniti. If you're buying a used 2018 Q70L, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Infiniti dealer for VIN-specific remaining warranty.
Estimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 5 owner complaints for this specific year, here's what to check or ask about:
- ☐AIR BAGS: I have an immaculately maintained 2018 Infiniti Q70L, but the OCS system began having issues at under 75k miles. Originally, the problem was the passenger seat sensor not detecting someone in the seat, so airbags were disabled. This occured sporadically for a year, but no codes were detectable by
Typically appears around 50K miles. Repair cost ~$500
- ☐ELECTRICAL: Component/system failed: Passenger seat occupant classification/seat weight sensor associated with the Supplemental Restraint System (SRS). Repair facility stated moisture or prior moisture intrusion likely affected the sensor. The failed component should be available for inspection upon request. Sa
Typically appears around 50K miles. Repair cost ~$500
- ☐SEATS/RESTRAINTS: Component/system failed: Passenger seat occupant classification/seat weight sensor associated with the Supplemental Restraint System (SRS). Repair facility stated moisture or prior moisture intrusion likely affected the sensor. The failed component should be available for inspection upon request. Sa
Typically appears around 50K miles. Repair cost ~$500
- ☐RECALLS: Verify all 1 recall have been completed — free at any Infiniti dealer
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Infiniti Q70L — Year Comparison
How does 2018 compare to other years? Fewer complaints = more reliable.
Full years-to-avoid analysis →NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 5
- Recalls
- 1
- Fire reports
- 0
- Crash reports
- 0
- Injury reports
- 0
- Segment avg
- 5
Check a Specific VIN
See recalls for YOUR 2018 Infiniti Q70L