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2021 Cadillac CT4: Key Fob Battery Replacement

The 2021 Cadillac CT4 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 CT4
  • 2.7L 4 cyl SIDI 2.7L 4 cyl SIDI / Premium / Rear-Wheel Drive / Automatic (S10)
  • 2L 4 cyl SIDI 2L 4 cyl SIDI / Premium / Rear-Wheel Drive / Automatic (S8)
  • 2.7L 4 cyl SIDI AWD / 2.7L 4 cyl SIDI / Premium / All-Wheel Drive / Automatic (S10)
  • 2L 4 cyl SIDI AWD / 2L 4 cyl SIDI / Premium / All-Wheel Drive / Automatic (S8)
  • 2.7L 4 cyl SIDI V / 2.7L 4 cyl SIDI / Premium / Rear-Wheel Drive / Automatic (S10)
  • 2.7L 4 cyl SIDI V AWD / 2.7L 4 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 CT4 Production Years

More Cadillac Battery Replacement Guides

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