Look in your owners manual and it will tell you.
check the underhood fuse block normally labled cig
it should be under the hood in the fuse box in the engine compartment or but the passenger door.
A 30 amp fuse is required.
A 20 AMP WILL DO THE JOB
The DR LK (door lock controls) Fuse is in the Driver's Side Instrument Panel Fuse Block. See page 6-61 of your "Owner's Manual" for location.....
Probably in the fuse bloick on the left end of the instrumnent panel
The 1965 Chevrolet Impala SS fuse box requires a 20 amp fuse for the taillights. A 30 amp fuse can be used when a 20 amp fuse is not available.
under the hood drivers side firewall
You can bypass the factory security system in your 2004 Chevrolet Impala by removing the factory security system fuse. You can find the factory security system fuse in the fuse box.
in the fuse box under the hood
Drivers side, above the kick panel vent
C/LTR Fuse is in the Passenger's Side Instrument Panel Fuse Block. See page 6-65 of your "Owner's Manual", under Section 6: Service and Appearance Care - Electrical System - Fuses and Circuit Breakers...