GmcSierra 1500 Sierra 1500 AT4 4WD Crew Cab Short Bed TK10543 4SB LZ0 MQC MY2025 US2025
Smart-key battery
CR2450 lithium or equivalent battery; insert positive side facing up
Own-model remote-key battery replacement instruction.
Car Key Fob Battery Finder by Model & Chassis Code
The same model family can use different keys. Match the exact code and key system before buying a replacement coin cell.
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