Question 1

Do you use OEM or aftermarket keys on Infiniti vehicles?

Accepted Answer

We use professional-grade fobs built to OEM specifications, meaning the factory FCC ID, the correct battery type, and the correct dealer part number. The fob has to match what the vehicle security system expects, or enrollment will fail or produce an unreliable result.

The cheap clone fobs sold on Amazon and eBay for Infiniti models are a real problem. Forum threads on multiple Infiniti owner communities document fobs that appear to program correctly but lose pairing within days, or that only partially enroll and produce intermittent no-start conditions. The issue is usually incomplete or substandard internal electronics that do not fully satisfy the handshake the security system requires.

Every fob I bring to a job has been sourced from suppliers I have tested and verified on actual vehicles. I am not going to hand you a key I am not confident in and then leave.

Question 2

How long should a replacement smart key last on a 2020 QX80?

Accepted Answer

A correctly programmed fob with normal use should last years. The internal electronics are durable. CR2032 batteries in this fob typically last one to two years depending on how often you use remote functions, and swapping them on schedule is the single best thing you can do for longevity.

The most common physical failure point owners report on this fob generation is the plastic housing, specifically around the emergency blade slot and the key ring tab. The shell can develop stress cracks over time from daily carry. When that happens, the internal components can usually be transferred to a fresh housing without any reprogramming, as long as the electronics survived intact.

If the housing on your current fob is already showing cracks, it is worth addressing before the blade ejection mechanism or the battery contacts get damaged from a drop.

Question 3

What if my new key stops working a few weeks after you program it?

Accepted Answer

Call me and I come back. Simple as that.

Before I leave any job I test every function: door handles, push-button start, and all five buttons. If something develops a fault under normal use after I have done that verification, I fix or replace it. I stand behind the work.

The failure mode owners on Infiniti forums describe most often after a bad programming job is a fob that starts the vehicle a handful of times and then stops being recognized entirely. That usually points to an incomplete enrollment, a tool that did not finish the security handshake correctly, or a substandard fob to begin with. None of those are outcomes I deliver, and if something unexpected comes up, I make it right.

Question 4

I have two working keys. Can I add a third smart key to my 2020 QX80 without losing the ones I already have?

Accepted Answer

Yes, and this is actually the easier scenario. When at least one working fob is already present and recognized by the vehicle security system, the enrollment process does not require a full security reset. The existing keys stay registered and the new fob gets added to the system alongside them.

All-keys-lost is a different job. That requires wiping the security system and re-enrolling everything from scratch, which takes longer and costs more. If you still have working keys, adding a spare now is the smarter and less expensive move. A lot of QX80 owners wait until they are down to one key before they call, and by then the job is already harder.

Question 5

My QX80 key fob works fine from close up but the range dropped way off. Battery is new. What is going on?

Accepted Answer

Short range with a fresh battery is one of the more frustrating symptoms because the obvious fix is already off the table. A few things cause this on the 2020 QX80 specifically.

First, check how the CR2032 is seated. These fobs have a battery contact that can get slightly bent if the case was pried open instead of properly released, and a battery that looks seated may not be making solid contact. Pull it, gently correct the contact, and reseat.

Second, the fob antenna can be affected by interference from certain phone cases, key pouches with RFID blocking material, or even being carried right next to a device that broadcasts on a close frequency. Test the fob away from all of that.

If range is still degraded after ruling those out, the fob itself may have internal damage or a weak transmitter, which is not always visible. At that point, replacement is the practical answer rather than continuing to troubleshoot a fob that is already marginal.

2020 Infiniti QX80
Key Replacement - Save vs Dealer in Ventura County

Trusted by 1,000+ Drivers

2020 Infiniti QX80
Key Options

Verified Pro vs Dealer Process

2020 Infiniti QX80 Smart Key Replacement - Fast, Affordable & Professional

Save vs the Dealer on Your Infiniti QX80 Key

Infiniti QX80 Rapid Response, Done Right

Certified and Five-Star Rated

Infiniti QX80 Mobile Service FAQ

Infiniti QX80 Key Service Areas

2020 Infiniti QX80 Key by Licensed Pros

2020 Infiniti QX80Key Replacement - Save vs Dealer in Ventura County

Trusted by 1,000+ Drivers

2020 Infiniti QX80Key Options