2020 Chevrolet Malibu Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2020 Chevrolet Malibu does not support DIY on-board programming for new key fobs. The vehicle's sophisticated security system requires a diagnostic scan tool connected to the vehicle's OBD-II port to program new key fobs. This procedure is typically performed by a certified automotive locksmith or a Chevrolet dealership.

Attempting to program a new key fob without the proper equipment can lead to issues with the vehicle's immobilizer system, rendering the car inoperable until properly reprogrammed. It is crucial to use professional services for this task.

Battery replacement

1. Locate the small button or slide on the side of the key fob. Press or slide it to release the emergency key blade. Pull the key blade out.
2. With the emergency key blade removed, you'll see a small slot or indentation in the key fob casing. Use a small flathead screwdriver or a coin to carefully pry open the two halves of the fob.
3. Once opened, you will see the circuit board and the CR2032 coin cell battery. Note the orientation of the battery (usually positive side facing up).
4. Gently remove the old battery and insert the new CR2032 battery, ensuring the positive (+) side is facing the same direction as the old one.
5. Carefully align the two halves of the key fob casing and press them firmly together until they snap shut. Reinsert the emergency key blade.

Where to buy a replacement fob

• Chevrolet Dealership: This is often the most expensive option, but it guarantees an OEM part and professional programming. Expect to pay anywhere from $250 to $400 or more for the key fob and programming.
• Automotive Locksmith: Locksmiths specializing in automotive keys can often provide and program aftermarket or OEM-equivalent key fobs at a significant cost saving compared to the dealership. Prices can range from $150 to $300, depending on the fob type and programming difficulty.
• Online Retailers (e.g., Amazon, eBay): You can often find blank key fobs for sale at a much lower price (e.g., $20-$70). However, be very careful to ensure the FCC ID (M3N-32337100) and part numbers match your existing fob to guarantee compatibility. Remember, even with a blank fob purchased online, you will still need a locksmith or dealer to cut the emergency key blade (if applicable) and program the fob to your vehicle, which incurs additional costs.

If on-board programming isn't supported

Since the 2020 Chevrolet Malibu requires specialized equipment for key fob programming, you will need to budget for professional services. The cost typically includes the key fob itself, the cutting of the emergency key blade (if needed), and the programming labor. The vehicle's immobilizer system is a critical security feature that prevents the car from starting without the correct programmed transponder chip present in the key fob. A locksmith or dealer will program this transponder along with the remote functions. Expect total costs ranging from $150 to $400, depending on where you purchase the fob and who performs the service.

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