When I turn the key I get a ticking sound sometimes. on 1998 Isuzu Rodeo

I turn the key and get a ticking sound but then turn the key again and it will start! And once it is started the brake and battery light will flicker!

Asked by for the 1998 Isuzu Rodeo
2 answers
Have the battery cable connections checked and serviced as needed along with starter and alternator testing.
seek diag from a good mechanic