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2021 Cadillac CT5: Key Fob Battery Replacement

The 2021 Cadillac CT5 key fob remote requires a CR2450 battery. Replacing it is a straightforward DIY task that can typically be completed in a few minutes, usually without affecting your existing remote programming.

This guide applies to the following models:

  • 2021 Cadillac CT5
  • 2L 4 cyl SIDI 2L 4 cyl SIDI / Premium / Rear-Wheel Drive / Automatic (S10)
  • 3L 6 cyl SIDI 3L 6 cyl SIDI / Premium / Rear-Wheel Drive / Automatic (S10)
  • 2L 4 cyl SIDI AWD / 2L 4 cyl SIDI / Premium / All-Wheel Drive / Automatic (S10)
  • 3L 6 cyl SIDI AWD / 3L 6 cyl SIDI / Premium / All-Wheel Drive / Automatic (S10)
  • 3L 6 cyl SIDI V / 3L 6 cyl SIDI / Premium / Rear-Wheel Drive / Automatic (S10)
  • 3L 6 cyl SIDI V AWD / 3L 6 cyl SIDI / Premium / All-Wheel Drive / Automatic (S10)
Key Fob Battery
CR2450

Battery Fitments and Replacements

Published battery fitments are paired with direct replacement options below.

Key Fob Battery

Type: CR2450Qty: 1
0 options⌄

Direct Replacement Options

No direct replacement links are available for this fitment yet.

Vehicle Database Directory

Other Cadillac CT5 Production Years

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Battery compatibility information is based on manufacturer specifications and publicly available data. Always verify battery type before purchase.