GM Parts Club
Memorial Day is the unofficial start of trailer season, and a lot of trailers have been sitting since Labor Day. Here is what to actually look at, using a 2015-2020 GMC Yukon as the example.
Brakes
Watch for uneven pad thickness side to side when you pull a wheel. Inspect at every tire rotation. Most GM trucks and SUVs go 30,000 to 60,000 miles on front pads depending on how they are used, and towing cuts that hard.
Pad compound changes brake torque, and brake torque is one of the inputs the stability control system assumes it knows.
Cooling System
Watch for crusty orange residue around a hose clamp or the surge tank seam. GM’s long-life coolant is generally rated for 5 years or 150,000 miles on the first fill and 5 years or 100,000 miles after that. Hoses and the surge tank should be inspected annually once past 80,000 miles.
GM cooling systems are DEX-COOL based and the seal and gasket materials are chosen for that chemistry.
Electrical and Charging
Watch for warning lights that appear in clusters and then clear themselves. Batteries in Texas heat routinely give up between three and five years. Test annually after year three, before the first cold snap.
GM’s battery management system is calibrated to a specific battery chemistry, group size and reserve capacity.
The Short Checklist
- Brake pads: Front and rear pads are almost never the same part, and heavy duty, tow and performance brake packages use different calipers and rotors than the base vehicle.
- Radiators: Engine, tow package and rear-A/C content all change the radiator and hose part numbers. Have the VIN ready.
- Batteries: Vehicles with stop-start often use two batteries. Confirm which one you are replacing before ordering.
If you are not sure which version fits your build, send us the VIN and we will confirm before anything ships. Shop our GMC OEM parts catalog or search for Yukon parts.
Comments
Loading…