How To Replace Battery In 2017 Toyota Key Fob?

Replacing the battery in your 2017 Toyota key fob is simple, and at millertoyota.net, we provide the information you need to do it yourself or schedule service with us in Boise, Idaho. This guide covers the process, offers troubleshooting tips, and explains when a complete key fob replacement might be necessary, ensuring you keep your Toyota running smoothly with services like key cutting and transponder key programming. Explore our website for more on car key replacement and remote key services.

1. What Type Of Battery Does A 2017 Toyota Key Fob Use?

A 2017 Toyota key fob typically uses a CR2032 battery. This is a 3V lithium coin cell battery commonly found in many electronic devices, including key fobs.

CR2032 Battery Specs: The CR2032 battery is 20mm in diameter and 3.2mm thick, making it a compact power source for small devices.
Availability: CR2032 batteries are widely available at drug stores, electronic stores, and online retailers. You can easily purchase them at stores like Walmart, Target, or online at Amazon.
Why CR2032? This battery type is chosen for its long life, stable voltage, and ability to operate in a wide range of temperatures, making it suitable for automotive key fobs.

CR2032 battery is commonly used in many Toyota key fobs due to its size and power.

2. How Do I Open A 2017 Toyota Key Fob?

Opening a 2017 Toyota key fob requires a few simple steps and a small, flat-head screwdriver. Here’s how:

Remove the Emergency Key: Locate the small button or latch on the key fob. Press or slide it to release the mechanical emergency key. Pull the key out to separate it from the fob.
Pry Open the Fob: Insert the tip of a small, flat-head screwdriver into the slot where the emergency key was housed. Gently twist the screwdriver to pry the fob open. You may need to apply a bit of pressure, but be careful not to damage the plastic casing.
Separate the Halves: Once you’ve created a small opening, use your fingers or the screwdriver to carefully separate the two halves of the key fob. The fob should split open relatively easily.
Access the Battery: With the fob open, you’ll see the circuit board and the battery. The battery is usually held in place by a small clip or bracket.

Tools Needed:
- Small, flat-head screwdriver
- Replacement CR2032 battery
Tips for Opening:
- If you don’t have a screwdriver, a thin coin or a sturdy plastic tool can also work.
- Work on a soft surface to avoid scratching the key fob.
- If the fob is difficult to open, double-check for any hidden screws or latches.
Caution: Avoid using excessive force, as this can damage the key fob’s casing or internal components.

3. What Tools Do I Need To Replace The Battery In My 2017 Toyota Key Fob?

Replacing the battery in your 2017 Toyota key fob requires minimal tools. Having the right tools will make the process smoother and prevent any damage to the fob.

Required Tools:

Tool	Description	Purpose
Small Screwdriver	A small, flat-head screwdriver (or a similar prying tool)	To open the key fob casing without damaging it.
Replacement Battery	A new CR2032 3V lithium battery	To replace the old, drained battery.
Optional Soft Cloth	A soft cloth or towel	To protect the key fob surface from scratches while opening and handling it.
Optional Small Pliers	Small pliers or tweezers (if needed)	To remove the old battery if it’s difficult to dislodge with your fingers.

Screwdriver Alternatives:
- Coin: A small coin (like a dime or nickel) can be used in place of a screwdriver to pry open the key fob.
- Plastic Pry Tool: A plastic opening tool, often used for electronic repairs, can also work without scratching the fob.
Tool Precautions:
- Avoid using sharp or overly large tools that could damage the key fob’s plastic or internal components.
- Work in a well-lit area to ensure you can see all the small parts and mechanisms inside the fob.

4. Step-by-Step Guide: Replacing The Battery In A 2017 Toyota Key Fob

Replacing the battery in your 2017 Toyota key fob is a straightforward process. Here’s a detailed, step-by-step guide to help you:

Gather Your Tools and Battery:
- Ensure you have a small, flat-head screwdriver (or similar prying tool) and a new CR2032 battery.
- Lay down a soft cloth to protect the key fob from scratches.
Remove the Emergency Key:
- Locate the small button or latch on the key fob that releases the mechanical emergency key.
- Press or slide the button to release the key and pull it out.
Removing the emergency key from your Toyota key fob is the first step in replacing the battery.
Open the Key Fob:
- Insert the tip of the flat-head screwdriver into the slot where the emergency key was housed.
- Gently twist the screwdriver to pry the fob open. Work your way around the seam if necessary until the fob starts to separate.
- Carefully separate the two halves of the key fob.
Access the Battery:
- With the fob open, locate the battery. It is typically held in place by a small clip or bracket.
Remove the Old Battery:
- Use your fingertip or a small plastic tool to gently push the battery out from the clip.
- If the battery is difficult to remove, use small pliers or tweezers to gently dislodge it, being careful not to damage the surrounding components.
Insert the New Battery:
- Take the new CR2032 battery and ensure the positive (+) side is facing up (usually indicated on the battery).
- Slide the new battery into the clip or bracket, ensuring it is securely in place.
Reassemble the Key Fob:
- Align the two halves of the key fob and gently press them together until they snap back into place.
- Ensure the seam is flush and the fob feels secure.
Test the Key Fob:
- Press the buttons on the key fob to ensure they are working correctly. The LED light on the fob should illuminate when a button is pressed.
- Test the key fob’s functions, such as locking and unlocking your car, to ensure the new battery is working.
Reinsert the Emergency Key:
- Slide the mechanical emergency key back into its slot until it clicks into place.

Tips for Success:
- If you encounter resistance when opening the key fob, double-check for any hidden screws or latches.
- Take a photo of the battery’s orientation before removing it to ensure you insert the new one correctly.
- If the key fob still doesn’t work after replacing the battery, refer to the troubleshooting section for further assistance.
Caution: Avoid using excessive force at any step, as this can damage the key fob’s casing or internal components.

5. What Do I Do If My 2017 Toyota Key Fob Still Doesn’t Work After Replacing The Battery?

If your 2017 Toyota key fob doesn’t work after replacing the battery, several factors could be responsible. Here’s a troubleshooting guide to help you diagnose and resolve the issue:

Check Battery Orientation:
- Ensure the battery is installed correctly with the positive (+) side facing up. If the battery is inserted incorrectly, the key fob will not function.
- Remove the battery and double-check the orientation markings inside the key fob.
Verify Battery Type and Voltage:
- Confirm that you’re using the correct type of battery (CR2032) and that it has the proper voltage (3V).
- Using an incorrect battery type or one with a different voltage can prevent the key fob from working.
Clean Battery Contacts:
- Check the metal contacts inside the key fob where the battery connects. If they appear dirty or corroded, gently clean them with a cotton swab dipped in rubbing alcohol.
- Dirt or corrosion on the contacts can prevent a good connection between the battery and the key fob circuitry.
Reseat the Battery:
- Sometimes, the battery may not be making full contact with the terminals. Remove the battery and reinsert it, ensuring it is securely seated in the battery holder.
- Wiggle the battery slightly to ensure it is making good contact.
Check the Circuit Board:
- Inspect the circuit board for any visible damage, such as broken components, loose connections, or signs of corrosion.
- If you notice any damage, the key fob may need professional repair or replacement.
Resync the Key Fob:
- In some cases, the key fob may need to be resynchronized with the vehicle. Refer to your Toyota owner’s manual for instructions on how to resync the key fob. This process usually involves pressing a sequence of buttons on the key fob or in the car.
- Visit millertoyota.net for resources to help
Check Fob Buttons:
- Press each button on the key fob to see if the indicator light illuminates. If the light does not come on for any of the buttons, it could indicate a button malfunction.

Checking the Toyota key fob buttons to ensure they are working correctly.

6. When Do I Need To Replace The Entire Key Fob For My 2017 Toyota?

While replacing the battery can resolve many key fob issues, there are situations where the entire key fob needs replacement. Here are some common scenarios:

Physical Damage:
- Cracked or Broken Casing: If the key fob casing is severely cracked, broken, or damaged, it can expose the internal components to moisture and debris, leading to malfunction.
- Damaged Buttons: If the buttons on the key fob are broken, worn out, or no longer responsive, it can prevent you from using the key fob’s functions.
Water Damage:
- If the key fob has been exposed to water or other liquids, it can cause corrosion and damage to the internal circuitry, rendering it inoperable.
Circuit Board Issues:
- Visible Damage: If you notice visible damage to the circuit board, such as broken components, loose connections, or signs of burning, the key fob likely needs to be replaced.
- Corrosion: Corrosion on the circuit board can also cause the key fob to malfunction.
Lost or Stolen Key Fob:
- If you’ve lost your key fob or it has been stolen, it’s essential to replace it to maintain the security of your vehicle.
- A new key fob will need to be programmed to your vehicle to ensure only authorized keys can operate the car.
Key Fob Not Responding:
- Failed Resynchronization: If you’ve tried resynchronizing the key fob with your vehicle and it still doesn’t respond, it may indicate a more significant issue with the key fob’s internal components.
- Consistent Malfunctions: If the key fob consistently malfunctions even after replacing the battery and trying other troubleshooting steps, it may be time for a replacement.

Factors to Consider:
- Cost: Replacing a key fob can be more expensive than replacing a battery, so consider the cost of replacement versus potential repair.
- Professional Assistance: If you’re unsure whether to repair or replace your key fob, consult with a professional at millertoyota.net for an assessment.

7. Can I Replace My 2017 Toyota Key Fob Myself Or Do I Need A Professional?

Replacing a 2017 Toyota key fob can be done either DIY or by a professional, depending on the situation and your comfort level.

Replacing the Battery Yourself:
- Pros:
  - Cost-Effective: Replacing the battery yourself is typically inexpensive, as you only need to purchase a new battery.
  - Convenient: You can do it at your convenience and don’t need to schedule an appointment.
  - Simple Process: The process is straightforward and requires minimal tools.
- Cons:
  - Potential for Damage: If not done carefully, you could potentially damage the key fob’s casing or internal components.
  - Limited Fix: Battery replacement only resolves issues related to a dead or weak battery, not other key fob malfunctions.
Professional Key Fob Replacement:
- Pros:
  - Expertise: Professionals have the expertise and tools to diagnose and fix key fob issues accurately.
  - Programming: If you need a new key fob programmed to your vehicle, professionals can handle this process.
  - Warranty: Professional services often come with a warranty, providing peace of mind.
- Cons:
  - Cost: Professional key fob replacement can be more expensive than DIY battery replacement.
  - Time: You need to schedule an appointment and wait for the service to be completed.
When to Choose Professional Replacement:
- Programming Required: If you need a new key fob programmed to your vehicle.
- Complex Issues: If the key fob has complex issues beyond a dead battery.
- Warranty Concerns: If you want the assurance of a warranty on the replacement.

8. How Much Does It Cost To Replace A 2017 Toyota Key Fob?

The cost to replace a 2017 Toyota key fob can vary widely depending on several factors. Understanding these factors can help you budget and make an informed decision.

Factors Affecting the Cost:
- Type of Key Fob: Standard key fobs are generally less expensive to replace than smart key fobs with advanced features like push-button start.
- Programming Fees: Programming a new key fob to your vehicle requires specialized equipment and can add to the overall cost.
- Dealership vs. Third-Party: Dealerships typically charge more for key fob replacement than third-party locksmiths or service centers.
Cost Breakdown:

Service	Estimated Cost	Details
Key Fob Replacement (at Dealership)	$200 – $400	Includes the cost of the new key fob and programming fees. Dealerships often use genuine Toyota parts, which can be more expensive.
Key Fob Replacement (Third-Party)	$150 – $300	Third-party locksmiths or service centers may offer lower prices, but ensure they have the necessary equipment to program the key fob to your specific vehicle model.
Key Cutting (if applicable)	$20 – $50	If your key fob includes a physical key, you may need to have it cut to match your vehicle’s ignition.
Emergency Key Replacement	$50 – $100	Cost if you need to replace only the emergency key, which can be more economical than replacing the entire key fob.
Programming Only (if you have a fob)	$50 – $150	If you already have a replacement key fob but need it programmed to your vehicle, this is the fee you can expect to pay.
Diagnostic Fees	$50 – $100 (if any)	Some service centers may charge a diagnostic fee to assess the issue with your key fob before providing a replacement.

Additional Tips:
- Check Warranty: Some Toyota warranties may cover key fob replacement, so check your warranty documentation.
- Get Quotes: Get quotes from multiple sources (dealerships, locksmiths, service centers) to compare prices.

9. How To Program A Replacement Key Fob For My 2017 Toyota?

Programming a replacement key fob for your 2017 Toyota can sometimes be done at home, but it often requires professional assistance. Here’s an overview of the process and considerations:

Can You Program a Key Fob Yourself?
- Limited DIY Options: Some older Toyota models have DIY programming methods available, but newer models, including the 2017 Toyota, often require specialized equipment.
- Check Owner’s Manual: Refer to your Toyota owner’s manual for specific instructions. Some models may allow you to program a new key fob if you already have a working key.
Professional Programming:
- Dealership Programming: Toyota dealerships have the equipment and expertise to program new key fobs to your vehicle.
- Third-Party Locksmiths: Many certified locksmiths also offer key fob programming services and may be more affordable than dealerships.
Steps for Professional Programming:
1. Provide Proof of Ownership: Bring your vehicle registration and driver’s license to prove you own the car.
2. Technician Connects to Vehicle: A technician will connect a diagnostic tool to your vehicle’s onboard computer.
3. Erase Old Key Fob Codes: The technician will erase the old key fob codes from the system to prevent unauthorized access.
4. Program New Key Fob: The new key fob will be programmed to the vehicle, allowing it to communicate with the car’s security system.
5. Test the Key Fob: The technician will test the new key fob to ensure it is working correctly, including locking, unlocking, and starting the vehicle.
Cost for Programming:
- Dealership: Programming fees at a dealership typically range from $75 to $150.
- Locksmith: Locksmiths may offer programming services for $50 to $100.

The programming for your Toyota Key Fob will require professional assistance.

10. Where Can I Buy A Replacement Battery Or Key Fob For My 2017 Toyota In The Boise, Idaho Area?

Finding a replacement battery or key fob for your 2017 Toyota in the Boise, Idaho area is convenient with several options available. Here are some reliable places to consider:

Miller Toyota (millertoyota.net):
- Address: 208 N Maple Grove Rd, Boise, ID 83704, United States
- Phone: +1 (208) 376-8888
- Website: millertoyota.net
- Genuine Toyota Parts: Miller Toyota offers genuine Toyota key fobs and batteries, ensuring compatibility and reliability with your vehicle.
- Expert Assistance: The knowledgeable staff can assist you in finding the correct key fob or battery for your 2017 Toyota.
- Programming Services: Miller Toyota provides key fob programming services to ensure your new key fob works seamlessly with your vehicle.
Auto Parts Stores:
- Availability: Major auto parts stores like AutoZone, O’Reilly Auto Parts, and Advance Auto Parts carry CR2032 batteries for key fobs.
- DIY Option: These stores are ideal for purchasing replacement batteries if you prefer to replace them yourself.
Retail Stores:
- Convenience: Retail stores such as Walmart and Target also sell CR2032 batteries in their automotive or electronics sections.
- One-Stop Shopping: You can conveniently purchase a replacement battery while doing your regular shopping.
Online Retailers:
- Wide Selection: Online retailers like Amazon and eBay offer a wide selection of key fobs and batteries for various car models, including the 2017 Toyota.
- Read Reviews: Check customer reviews to ensure the key fob or battery is compatible and of good quality.

By considering these options, you can easily find a replacement battery or key fob for your 2017 Toyota in the Boise, Idaho area.

FAQ: Replacing Your 2017 Toyota Key Fob Battery

What kind of battery does a 2017 Toyota key fob need?
The 2017 Toyota key fob typically uses a CR2032 3V lithium battery.
How do I know when my 2017 Toyota key fob battery is low?
Signs include reduced range, the key fob not working consistently, or a warning light on your dashboard.
Can I use a different type of battery in my 2017 Toyota key fob?
No, always use the specified CR2032 battery to ensure proper function and avoid damage to the key fob.
Is it hard to replace the battery in a 2017 Toyota key fob?
No, replacing the battery is generally easy and can be done with a small screwdriver and a few minutes.
What should I do if my 2017 Toyota key fob gets wet?
Remove the battery immediately and dry the key fob thoroughly. If it still doesn’t work, you may need a replacement.
Where can I buy a replacement battery for my 2017 Toyota key fob in Boise?
You can purchase a replacement battery at local auto parts stores, retail stores like Walmart or Target, or online retailers. millertoyota.net also offers genuine batteries.
Can I program a new key fob for my 2017 Toyota myself?
Programming often requires professional equipment, so it’s best to visit a Toyota dealership or a certified locksmith.
How much does it cost to have a Toyota dealer replace my key fob battery?
Having a dealer replace the battery may cost between $25 and $50, including labor.
What should I do with the old battery from my key fob?
Dispose of the old battery properly at a recycling center or a designated battery collection point.
Will replacing the battery in my 2017 Toyota key fob affect the car’s security system?
No, replacing the battery will not affect your car’s security system as long as you follow the correct procedure.

Is your 2017 Toyota key fob giving you trouble? Don’t wait! Visit millertoyota.net today to explore our wide selection of genuine Toyota key fobs and batteries. Schedule a service appointment online or contact our parts department at +1 (208) 376-8888 for expert assistance. Drive with confidence, knowing Miller Toyota in Boise has you covered!