I've been losing air in my LF tire for months monitoring it using the TPMS readout in the gage cluster and topping it off with my garage compressor. I've also had to add air to the LR occasionally. Found a bolt in the LF so took it to DT, made an appointment for 12:45 PM and had them check both tires. Turns out both had punctures. They repaired and rebalanced both for no charge and had me out in under an hour. Keep in mind these tires were not purchased at DT (this was my dad's car and at the time DT wasn't in the area he lives). This is why I will only buy tires at DT, always a great experience.