Replace Key Battery medium urgency

Dead Key Fob Battery: 2024 Chevy Traverse (US) — How to Get Back In and Start

If your 2024 Chevrolet Traverse key fob suddenly won’t unlock the doors or start the vehicle, the most common cause is a dead fob battery. The good news: you can usually still get in and start the Traverse using the backup methods built into the vehicle. Once you’re mobile, replacing the coin-cell battery typically restores normal operation in minutes.

Understanding Your Situation

The key fob’s coin-cell battery has dropped too low to power the transmitter, so the Traverse may not detect the fob for remote unlock, remote start, or push-button start. The vehicle still has a mechanical key blade for entry and an emergency “place fob here” method so the immobilizer can read the fob even with a weak/dead battery.

🚀 Immediate Steps to Take

  1. Use the mechanical key blade hidden inside the fob to unlock the driver’s door (look for a release latch on the fob to slide the key out). If there’s a key cylinder cover, carefully pry it off as designed to access the lock.
  2. To start the Traverse, hold the fob against the designated backup location (commonly inside the center console or a marked pocket/cupholder area—check your owner’s manual for the exact spot) and press the brake and START/STOP button.
  3. Replace the fob battery as soon as possible (typically a CR2032 coin-cell for many GM fobs, but verify the exact type printed on the old battery or in the owner’s manual). Test lock/unlock and starting afterward.

Your Options

DIY key fob battery replacement (coin-cell)

Cost: $3-$12 Time: Same day

Open the fob case, remove the old coin-cell battery, install a new one with the correct polarity, then snap the fob back together and test all functions.

✓ Pros:
  • Fast and inexpensive
  • No programming typically required for a battery swap
✗ Cons:
  • Risk of cracking the fob housing if pried incorrectly
  • Using the wrong battery type or installing it backward won’t fix the issue

Battery replacement at an auto parts store or retailer

Cost: $5-$25 Time: Same day

Buy the correct coin-cell battery and have staff help install it (service availability varies by store).

✓ Pros:
  • Convenient if you don’t have tools
  • Less chance of damaging the fob than DIY for some owners
✗ Cons:
  • Not all stores install batteries
  • You still need a way to get to the store if the vehicle won’t start

Dealer service (diagnosis + battery install)

Cost: $20-$75 Time: Same day / 1-3 days

A Chevrolet dealer confirms the issue is the fob battery (not a fob failure or vehicle-side problem) and replaces the battery; they can also check for fob or receiver issues if problems persist.

✓ Pros:
  • Professional verification if symptoms are confusing
  • Can identify a failing fob or other issues beyond the battery
✗ Cons:
  • Higher cost than DIY
  • May require appointment or wait time

Mobile locksmith / roadside assistance help

Cost: $75-$200 Time: Same day

If you’re locked out or can’t get the Traverse started, a locksmith or roadside provider can help you gain entry and may replace the battery if you have one available.

✓ Pros:
  • Help comes to you
  • Useful if you’re stranded or locked out
✗ Cons:
  • More expensive than replacing a battery yourself
  • Service quality and capabilities vary by provider

⚠️ What to Avoid

✕ Don’t force the fob case open with a knife or excessive prying—use the seam/notch intended for opening to avoid breaking clips or cutting yourself.

✕ Don’t install a different coin-cell size/voltage or a bargain battery with poor shelf life; use a quality brand and the exact type specified/printed on the old battery.

✕ Don’t assume the vehicle battery is dead if only the fob functions fail—try the mechanical key entry and the emergency fob-start location before jumping the car.

⚠️ Common Mistakes to Avoid

  • Using wrong battery type
  • Damaging case during opening
  • Not resetting after replacement
  • Buying expensive batteries

Frequently Asked Questions

Can I start my 2024 Chevy Traverse if the key fob battery is dead?

Yes. The Traverse has a backup starting method that can read the fob even with a dead battery. Hold the fob against the designated backup location (often in/near the center console area—confirm in your owner’s manual) and press the brake and START/STOP button.

Do I need to reprogram the key fob after replacing the battery?

Usually no. A battery replacement does not typically erase programming. If the fob still doesn’t work after a new battery, confirm the battery type/polarity and try a second new battery; then consider fob damage or a vehicle-side issue.

What battery does the 2024 Chevrolet Traverse key fob use?

Many GM key fobs use a CR2032 coin-cell, but it can vary by fob design/trim. The safest way is to open the fob and read the battery number on the old battery or check the owner’s manual for your exact configuration.

Why does my Traverse say “Key Not Detected” even when the fob is inside?

A weak/dead fob battery is the most common reason. Other causes include interference (phone/other RF devices), the fob being in a bag with metal objects, a damaged fob, or an issue with the vehicle’s antenna/receiver. Try the backup fob-start location first.

⏱️ Urgency Note: Moderate urgency: a dead fob battery can leave you locked out or unable to start at an inconvenient time. Replace the battery promptly and keep a spare coin-cell in the glovebox or at home.

Related Information

Need Detailed Information?

Get vehicle-specific key fob compatibility, part numbers, and a complete price comparison for your 2024 Chevrolet Traverse.

View Traverse Key Fob Guide →

Last updated: 2026-01-04