Understanding Your Situation

A “key fob not working” situation usually means the remote isn’t sending a strong signal, the vehicle isn’t receiving it, or the security system isn’t recognizing the key. Common triggers include a depleted coin-cell battery, damage from drops/water, radio-frequency interference, or a vehicle-side issue (12V battery low, receiver/module fault, or a key that needs reprogramming).

🚀 Immediate Steps to Take

  1. Try the spare key fob first. If the spare works, the issue is almost certainly the original fob (battery, damage, or internal failure).
  2. Use the mechanical key to unlock the driver door, then try the backup start method: place the fob in the vehicle’s designated backup location (often in/near the center console storage area or another marked pocket) and attempt to start. If it starts this way, the fob battery is likely weak.
  3. Replace the key fob battery with the correct coin cell (commonly CR2032 on many GM fobs, but verify your owner’s manual for the exact type), then test lock/unlock and remote start from a few feet away.

Your Options

Replace the key fob battery (DIY)

Cost: $3-$15 Time: Same day

Open the fob case carefully, replace the coin-cell battery with the correct type and orientation, and re-test all functions (lock/unlock, panic, remote start).

✓ Pros:
  • Fast and inexpensive
  • Fixes the most common cause of intermittent/no response
✗ Cons:
  • Wrong battery type/orientation won’t help
  • Doesn’t fix water damage or internal fob failure

Use backup entry/start and schedule service

Cost: $0-$50 Time: Same day / 1-3 days

Use the mechanical key for entry and the vehicle’s backup fob detection location to start, then plan a repair if the fob still won’t work normally.

✓ Pros:
  • Gets you mobile even if the fob battery is low
  • Avoids towing in many cases
✗ Cons:
  • Inconvenient day-to-day
  • May not work if the fob is fully failed or not recognized

Replace the key fob shell or repair buttons

Cost: $10-$60 Time: Same day / 1-3 days

If the fob works intermittently or only at certain angles, the case, buttons, or battery contacts may be worn. A new shell or minor repair can restore reliable contact without replacing the entire fob (electronics must be transferred carefully).

✓ Pros:
  • Low cost compared to a new fob
  • Good solution for broken buttons or loose battery fit
✗ Cons:
  • Doesn’t help if the circuit board is damaged
  • Improper transfer can damage the fob

Dealer diagnostics and key fob replacement/programming

Cost: $200-$500+ Time: Same day / 1-3 days

A Chevrolet dealer can test the fob, check for vehicle-side faults (receiver/module, security system, software updates), and program a new OEM key if needed.

✓ Pros:
  • Correct OEM parts and programming
  • Can diagnose truck-side issues beyond the fob
✗ Cons:
  • Higher cost
  • May require appointment and proof of ownership

Automotive locksmith (mobile key programming)

Cost: $150-$400 Time: Same day

A qualified automotive locksmith can often supply and program a compatible key/fob on-site, and may be able to clone or program additional keys depending on vehicle requirements.

✓ Pros:
  • Convenient mobile service
  • Often faster than waiting for a dealer appointment
✗ Cons:
  • Not all locksmiths can service the newest model years
  • Aftermarket fobs vary in quality and warranty

Address vehicle 12V battery or electrical issues

Cost: $0-$300 Time: Same day

If neither fob works reliably, the truck’s 12V battery may be weak or there may be a receiver/body control issue. Testing the 12V battery and charging/replacing it can restore normal keyless entry/start behavior.

✓ Pros:
  • Fixes root cause when the truck is the problem
  • Improves overall reliability (starting, electronics)
✗ Cons:
  • Requires testing tools or a shop visit
  • May not solve a damaged/failed key fob

⚠️ What to Avoid

✕ Don’t repeatedly force the fob open with sharp tools—cracked housings and damaged seals can lead to future failures.

✕ Don’t assume it’s the fob if both keys fail; a weak vehicle 12V battery or receiver issue can mimic a dead fob.

✕ Don’t buy the cheapest online replacement without verifying compatibility (FCC ID/part number) and return policy—programming may fail or range may be poor.

⚠️ Common Mistakes to Avoid

  • Assuming key is broken
  • Not checking battery first
  • Calling tow truck immediately
  • Replacing when reprogramming needed

Frequently Asked Questions

My 2024 Colorado key fob won’t unlock the doors—how do I get in?

Use the mechanical key inside the fob to unlock the driver door. If the alarm sounds, start the truck using the backup fob detection location (refer to the owner’s manual for the exact spot) to authenticate the key.

The truck starts only when the fob is very close—what does that mean?

That’s a classic sign of a weak key fob battery or poor battery contact inside the fob. Replace the coin-cell battery first and ensure it’s seated correctly; if symptoms persist, the fob may have internal damage.

Will replacing the battery erase programming?

No—on GM key fobs, a normal coin-cell battery replacement does not erase the fob’s programming. If the fob still won’t work after a fresh battery, the issue is likely damage, interference, or a vehicle-side problem.

Why would both key fobs stop working at the same time?

If both fobs fail, suspect vehicle-side causes such as a weak 12V battery, a blown fuse related to keyless entry, a receiver/body control issue, or significant radio interference near where you’re parked.

⏱️ Urgency Note: If you’re stranded or the truck won’t recognize the key for starting, use the backup start method and move to a safe location. If the problem is intermittent, address it soon—failing fobs and weak 12V batteries tend to get worse and can leave you unable to start the vehicle.

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