There's a Chip inside the key fob that needs to be at a certain distance from your car for it to turn over. I think it's like an anti-theft feature or what. If it's just the case that's broken just replace the case, got mine from here 3 years ago still has no issues, says it is USA made and looks beefed up compared to OEM quality. See in https://www.amazon.com/dp/B0D4SJHPWF?maas=maas_adg_2293C6C6FA21160099C1B1ADD14C0AAF_afap_abs&ref_=aa_maas&tag=maasAmazon site.