Bought our CX-5 in December 2019 with current miles only at 35,000.

1. Had the failure of the Adaptive Cruise, auto braking warnings and after reading older threads, discovered that all 4 tires were down to 30psi with no warning at all from TPMS. Filled tires to recommended 34 psi and voila! All warnings gone, saving a potentially expensive sensor replacement at Mazda dealer (advisor did suggest that car was just slightly past 36 months so maybe Mazda would defer possible $2,000 fix).
Is TPMS not reliable?

2. Yokohama Geolander. on right rear had a catastrophic blowout so replacing 2 tires with TireRack recommended Pirelli Scorpions at Firestone. We will see how these Pirellis, on front, compare in noise and longevity. Mostly highway driving, little stop and go city trips.

3. Firestone inspection shows battery at 350 instead of 650 amps. Car has been very lightly used during Covid and just completed a 2,000 mile trip from Pittsburg, SF Bay Area to Seattle and Astoria, Portland, Oregon.
Bay Area has mild winters but 80-100 degrees during parts of summer (not yet this year) Are these factory installed batteries supposed to have short lives? What batteries do you recommend?

 

The OEM Toyo tires on our '19 GT were well worn at 20k when we traded the car in. Not a fan of the stock tires. I also recommend you swap all 4 tires if you don't have the same ones in back as the car will do better on 4 of the same tires (with the same amount of tread as well). I have not heard of your TPMS issues being a common thing - on the forums at least. As for the battery, in my experience with modern cars - 4yrs is a good lifespan for a battery. At 35k after 4 yrs it seems you don't drive the car a lot, or do a lot of short trips, which can be hard on a battery. I think you are due for a new one. Cheap insurance to plan to replace the battery about every 4yrs, so you don't get stranded. Personally, I say go for a traditional flooded lead acid rather than an AGM battery as they both last the same in my experience with several different modern cars. I believe the OEM battery you have is AGM. Check your local Costco or Sams Club for the best deals on batteries.

 

Agree. Bought the Mazda with 17,000 miles and Toyo tires were barely enough tread to pass and slippy as heck. Replaced shortly thereafter.

Replaced the battery at 3.5 (3 and 1/2 ) years.
Anymore 3 to 5 years is the lifespan on battery's.
Better to replace early than be stuck and have somewhere important to get to.

 

Well pretty much agree with what chickdr19 posted. However i do want to add that because of so many on board electronics with newer cars manufactured from about 2016 and new it would advisable to have you battery load tested at least 2 a year before winter and before summer or more often.
In our shop we replace batteries at 4-5 years old and a few that are less then 4 years old by both the manufacture actual coded date and the little sticker date (which should not be used to determine the birth of a battery) about every other day.

 

Modern vehicles put a much higher strain on batteries, and not just Mazdas. Because of the large number of computers controlling almost every vehicle operation, a battery which may have been fine in a 2010 vehicle will not last in a 2023. Realistically, many batteries today struggle to last more then three years, especially depending on the environment. Hot or very cold climates challenge any battery and sap life - just the reality of modern vehicles. If you get four years out of a battery in a modern vehicle consider yourself lucky.

 

My TPMS doesn't come on until under 30 PSI (on my original Toyo's).
Not an issue with me as I manually check tire pressure at least every other week and before every long trip (over 200 miles).
I have the Pirelli Scorpions and they made a world of difference in ride, handling and noise.
My experience in newer vehicles is the OEM batteries don't last long.
My cx-5 lasted just one year and I replaced with a much better (and much more expensive) battery.

 

Batteries are an interesting topic. For whatever reason, mine have lasted longer than the presumed norm. I bought my CX-5 on Memorial Day in 2018. Been retired since Jan 2019 so I haven’t had a work commute since then and am only putting around 5k a year on my car. I mostly do short 3-5 mile round trips trips 3-4 days routinely every week with occasional longer trips in and out of town to end up at about 400 miles a month. Battery has never died or failed to start. I do have a charger that I will occasionally put on it if I have gone several days without driving it. I only have 26k on it and the car has been bullet proof. Do my own oil changes and tire rotations and replaced the air filter once. Never had a warranty service, just one visit early for the software update recall. I do have a battery tester and a couple months ago it passed.

Prior to the CX-5, I owned a 2008 M3 for 9 1/2 years. That battery also never failed to start but I finally had it replaced in 2017 after 8 1/2 years of ownership because I knew I was probably on borrowed time with it. I also used a charger on it occasionally. Throughout the M3 ownership I did have a daily work commmute of about 12 miles each way. No real point here to my response, just saying there are people who’s batteries do last a long time for some reason. Maybe in some cases it has to do with battery history before the car is purchased.

 

I have nearly the same driving habits as I retired in 2018.
Every one of my vehicles in the past 20 years Subaru, 2 Hondas (which have very small batteries) Hyundai and the Mazda have required OEM battery replacement within two years or less.
However, the replacement batteries I purchased never failed. Living in Maine the obvious colder temperatures here are greater drain on a battery.
But rest assured the OEM battery in Alabama is the same OEM battery found in Maine or Alaska.

 

Staring is not always the indicator of a battery that is starting to decline. In fact, most drivers even some mechanics don't even notice the starting difference when a battery is borderline needing to be replaced.
As I strongly suggest.... re-read my last response!

As for the occasional charging, this is an excellent way to keep a battery health in the best possible condition.
If you have a digital meter on the charger or a digital volt/ohm member a battery will start declining when the normal charged rate starts to decline by. 01 volt when being charged after the batter charger has charged the battery and it is on maintenance mode (if your charger has that feature)
You can also see this in a load test comparing when the battery state of charge and health was optimal.
Show me a manufactured 5+ year old battery (not the retail date which is ALWAS a older date and there is no way to find how many times any retail battery was rotated in stock) and I can show you a battery that is in its declining support.

 

The key for you is the occasional charging. I do this on my 2006 BMW which rarely comes out and has 20k. I still have to swap batteries every few years but they have lasted about 4-5 yrs each so far.