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Dead Key Fob Battery (2024 Chevy Colorado): How to Get In and Start Your Truck

If your 2024 Chevrolet Colorado key fob suddenly won’t unlock the doors or the truck won’t detect the fob, the most common cause is a dead (or weak) fob battery. The good news: you can usually still get in and start the truck using the built-in backup methods, then replace the battery in minutes.

Understanding Your Situation

The coin-cell battery inside the key fob has dropped below the voltage needed to transmit a strong signal. The truck may show a “Key Fob Battery Low” warning first, then the remote functions stop working and the push-button start may not detect the fob at normal range.

🚀 Immediate Steps to Take

  1. Use the mechanical key inside the fob to unlock the driver’s door (look for the release on the fob to pull the key out, then use the hidden/covered key cylinder on the driver door handle).
  2. Try the backup start method: hold the fob directly against the designated backup reader area inside the truck (commonly in the center console/cupholder area or near the steering column) and then press the brake and start button. If you’re unsure of the exact spot, check the owner’s manual for “remote keyless entry transmitter” backup location.
  3. Replace the fob battery as soon as possible with a quality coin-cell of the correct type (commonly CR2032 on many GM fobs, but verify your exact fob/owner’s manual before buying).

Your Options

Replace the key fob battery yourself (DIY)

Cost: $3-$12 Time: Same day (10-20 minutes)

Buy the correct coin-cell battery, open the fob case carefully (often with the mechanical key and a small flat tool), swap the battery, and test lock/unlock and starting range.

âś“ Pros:
  • Fast and inexpensive
  • No appointment needed
âś— Cons:
  • Using the wrong battery type or installing it upside down won’t fix the issue
  • Prying too hard can crack the fob shell or damage internal clips

Have a dealership replace the battery

Cost: $10-$40 Time: Same day

A Chevrolet dealer parts or service department replaces the battery and can confirm the fob is operating normally afterward.

âś“ Pros:
  • Correct battery type and proper installation
  • Quick functional check by a technician
âś— Cons:
  • Higher cost than DIY
  • May require a visit during business hours

Use roadside assistance / mobile locksmith for help getting in and starting

Cost: $0-$150 Time: Same day (30-120 minutes)

If you’re locked out or stranded and can’t access the mechanical key or backup start method, a pro can help you regain entry and verify the fob/battery situation.

âś“ Pros:
  • Helpful if you’re locked out or away from tools
  • Can reduce risk of damage compared with forcing entry
âś— Cons:
  • Wait time varies by location
  • They may still require you to supply/approve the correct battery

Replace the key fob shell (if the case is broken) while replacing the battery

Cost: $15-$80 Time: Same day / 1-3 days (if ordering parts)

If the fob housing is cracked or won’t snap closed after a battery swap, move the internal board and key blade into a new shell (or have a pro do it).

âś“ Pros:
  • Restores durability and button feel
  • Often cheaper than replacing the entire fob
âś— Cons:
  • Not needed for a simple dead-battery issue
  • Cheap shells can fit poorly or wear quickly

⚠️ What to Avoid

✕ Don’t force the door open or pry on trim—this can bend the door frame, break weather seals, and cause wind noise or leaks.

✕ Don’t use no-name or incorrect coin-cell batteries; low-quality cells can fail quickly or leak and damage the fob.

✕ Don’t touch the new battery’s surfaces excessively or bend the contacts inside the fob—poor contact can mimic a “dead battery” even with a new cell.

⚠️ Common Mistakes to Avoid

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

Frequently Asked Questions

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

Usually, yes. Most push-button-start systems have a backup reader that can detect the fob at very close range. Hold the fob against the designated backup location inside the truck and then press the brake and start button. The exact location is listed in your owner’s manual.

What battery does a 2024 Chevrolet Colorado key fob use?

Many GM key fobs use a CR2032 coin-cell, but battery type can vary by fob design and trim. Check your owner’s manual or the marking on the old battery before purchasing a replacement.

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

In most cases, no. Replacing the coin-cell battery does not erase programming. If the fob still doesn’t work after a fresh battery, the issue may be a damaged fob, poor battery contact, or a vehicle-side problem that needs diagnosis.

Why does the truck say “Key Fob Not Detected” even with a new battery?

Common causes include the battery installed upside down, a weak/old battery, bent or dirty battery contacts, interference, or a failing fob. Try a second new battery from a reputable brand and inspect the contacts; if symptoms persist, have the fob and vehicle checked.

⏱️ Urgency Note: Moderate urgency: you can often unlock and start using the mechanical key and backup reader, but replace the battery soon to avoid getting stranded—especially before travel, bad weather, or remote parking.

Related Information

Need Detailed Information?

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

View Colorado Key Fob Guide →

Last updated: 2026-01-04