It's a 2012 Nissan Titan LE with 166K miles that I picked up for a very decent price. Knowing it had been in a frontend collision before, I've been chasing a few issues, but right now I'm focused on the TPMS light that blinks then stays on every time I start it. My scanner couldnt pick up the TPMS fault, so I took it to a local tire shop and they found one tire missing a sensor entirely and the others either not reading or showing no air. I'm thinking of just replacing all five sensors, including the spare, but wanted to check if that's the simplest and most cost effective route. Thoughts pls.