GM Parts Club
If you are leaving in the morning, here is the twenty minute version. Here is what to actually look at, using a 2020-2024 Cadillac XT6 as the example.
Electrical and Charging
Watch for a battery that tests fine at the counter but fails after sitting three days. Batteries in Texas heat routinely give up between three and five years. Test annually after year three, before the first cold snap.
Many recent GM vehicles need the new battery registered to the module or the charging system will keep undercharging it.
Glass and Wipers
Watch for a washer pump you can hear running with nothing coming out. Blades every six to twelve months. In North Texas, summer heat kills blades faster than winter does.
Windshields with acoustic interlayer, HUD or camera brackets are not interchangeable with base glass.
Filters and Fluids
Watch for reduced airflow from the vents. Follow the oil life monitor rather than a fixed mileage. Engine air filter every 30,000 to 45,000 miles. Transmission service intervals vary widely by transmission and by whether you tow.
Dexos1 and dexos2 licensing exists because GM engines have specific requirements, and warranty language references it directly.
The Short Checklist
- Batteries: Vehicles with stop-start often use two batteries. Confirm which one you are replacing before ordering.
- Wiper blades: Driver and passenger blades are frequently different lengths on the same vehicle.
- Oil filters: Engine size and emissions equipment change the filter, and diesel filter kits in particular are not interchangeable across model years.
We have been selling GM parts online since 2009 and out of the Dallas store since 1956. Start with our Cadillac OEM parts catalog, or search for XT6 parts.
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