How to Replace the Battery in a 1999 Infiniti Q45 Key Fob

How to Replace the Battery in a 1999 Infiniti Q45 Key Fob

If your Q45 remote key fob is not unlock doors perfectly, the cell battery more likely must to be replaced. Below, we outlined how to open your key fob and replace your Infiniti key battery step by step.

What size battery does 1999 Infiniti Q45 keyless entry remote take

Replacing battery in remote key fob require CR2025 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • flat head screwdriver
  • 1xCR2025 battery

Step by step guide

Inside of your key fob installed button cell battery. Gently try to disassemble your fob with pry tools. Replace 1 CR2025 battery with flat head screwdriver.

Change old battery with fresh one CR2025. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

After the new battery installed, check keyless entry remote functionality by pressing buttons. If all functions works, assemble your keyless entry fob's body in reverse order.

At this point squeeze fob’s back cover together. Line your body pieces together and put it together by hands from top to bottom. If your keyless entry remote shell firmly closed, we done. If not, repeat the last step.

How to replace the battery video guide

How To Replace Infiniti Q45 Key Fob Battery 1997 1998 1999 2000 2001

Still not working? Buy new one


Remote key fob of Infiniti Q45 require 1xCR2025 batteries. Most CR2025 batteries are under $4 build upon the size packaging, type and brand you buy. Take your old battery to the store, with you to find a proper replacement.

Usually, after key battery replace, reprogramming not required. Key fob reprogramming procedure often described in user's manual of your vehicle.

Replacing your keyless entry remote battery is easy to do in 1999 Infiniti Q45. Most of car manufacturers think of the customers and make a special hole for keyless entry remote disassembly.

Auto repair shop's cost for change the battery in keyless entry remote is $50-600 depending on the make.

Remote key fob batteries in Infiniti Q45 should be replaced once in three years, although this will differ based on their amount of use and battery quality. If your remote key fob decreased signal strength, you should replace batteries before it stop open doors and make problems for you.

If your car has low key battery indicator on dashboard, key fob buttons not working, signal strength reduced or need multiple clicks to unlock or lock doors, it's probably battery replace in key fob needed. Current battery is dead or weak with a high probability, but if it's not fix, keyless entry remote replace or repair needed.
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Other Infiniti Models:

Fob Compatibility:

  2. Models: 1997-2001 Infiniti Q45