replace parking sensor 1 or all 4-rear bumper only have 1 bad one liberty 2011

[Ronald]

replace parking sensor 1 or all 4-rear bumper only have 1 bad one liberty 2011
which has 1 bad senor. jeep runs great however my factory installed remote start don't work now and some store said re have to replace all 4 sensors and I don't get it is it a sales pitch to make me think I need all 4 sensors?

 

[budget76]

why do you care about parking sensor or remote start. These are designed to cost $$$ and break and be replaced. This is why people thing cars are expensive. Replace 1 if you must, but ask yourself, how many hours at my job must i work to pays for this. Use after tax, home, food dollars. Bet it is like 6-20 hours of work to pay to have someone do it. These cars are meant to be cheap. This vehicle is 15 years old even if it looks good, stop wasting $$.