Also, with my '95 Nissan Sentra the driver’s side door is nearly impossible to unlock - how much does this fix to cost?
It might be just a couple of bucks for some graphite lock lubricant. If the lock cylinder is shot, a replacement is probably less than $50, plus installation. If you want to use your original keys, rekeying shouldn’t be more than $20.
Our resident locksmiths will be able to narrow down the prices.
Graphite works great but silicone lube is much less messy…