Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
336
Vehicle Care
Fuses
Usage
F42
TCP
F43
–
F44
Active vibration
management
F45
Body control module 2
F46
Heating, ventilation, and
air conditioning/Battery 1
F47
Instrument panel cluster/
Battery
F48
Transmission control
module
F49
Body control module 1
F50
–
F51
Battery 1
F52
Battery 2
F53
–
F54
Sunroof
F55
Driver power seat
F56
DC DC TRANS 1
F57
DC DC TRANS 2
F58
Infotainment 2
Circuit
Breakers
Usage
1
Accessory power outlet 2
2
Accessory power outlet 1/
Cigarette Lighter
3
Accessory power outlet 3
4
Accessory power outlet 4
Relays
Usage
K1
Run/Crank
K2
Retained accessory power/
Accessory 1
K4
Retained accessory power/
Accessory 2
K5
–
Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{
Warning
.
Poorly maintained and improperly
used tires are dangerous.
.
Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
.
.
Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.
Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact
—
such as when
hitting a pothole. Keep tires at the
recommended pressure.
(Continued)