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EnglishDriving and Operating -> Conversions and Add-Ons for your Chevrolet Silverado 1500 2018-2025
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Driving and Operating
Maintenance Alerts
if the setting is on for the active Trailer
Profile, the vehicle has an OnStar or
connected service plan and the smartphone
number has been added to the account for
this notification.
If Tow/Haul Mode is on and this setting is
on for a Trailer Profile, the reminder will not
appear when the Trailer Profile is active.
Touch Maintenance Alert to turn on/off
Maintenance Alerts for the selected profile.
These alerts are based on the Trailer Profile,
so the settings for each Trailer Profile must
be turned on or off.
Conversions and Add-Ons
If the setting is turned off for a given Trailer
Profile, the smartphone will not receive this
security notification even if the Trailer
Profile is active.
Add-On Electrical Equipment
The setting is on by default for each profile.
All Maintenance Alerts for that active Trailer
Profile will be received.
Warning
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Tow/Haul Mode Reminder
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. See Malfunction
Indicator Lamp (Check Engine Light) 0 117.
A device connected to the DLC — such as
an aftermarket fleet or driver-behavior
tracking device — may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Turn this setting off to dismiss Maintenance
Alerts when that Trailer Profile is active.
This is a reminder to turn on the Tow/Haul
Mode when towing a trailer. See Driver
Mode Control 0 240.
Theft Alert
Theft alert can be set if a trailer is
connected and the alert is enabled. When
the trailer is disconnected and the vehicle is
off, an alarm will sound.
Touch Tow/Haul Mode Reminder to turn on/
off Tow/Haul Mode reminders for the
selected profile. These alerts are based on
the Trailer Profile, so the settings for each
Trailer Profile must be turned on or off.
Touch Theft Alert to turn on/off Theft Alerts
for the selected profile. These alerts are
based on the Trailer Profile, so the settings
for each Trailer Profile must be turned on
or off.
This setting will default to OFF for each
Trailer Profile, including the Guest Trailer
Profile.
Caution
If Tow/Haul Mode is off and this setting is
on for a Trailer Profile, each time the vehicle
is turned on, a reminder will appear to turn
on Tow/Haul Mode when the Trailer Profile
is active.
This setting will be off by default for each
Trailer Profile, including the Guest Trailer
Profile.
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment.
A smartphone will receive a notification that
the trailer related to the selected Trailer
Profile is disconnected from the vehicle,
Driving and Operating
329
Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.
the airflow to the radiator. This could be
more noticeable as vehicle speed
increases. At speeds above 72 km/h
(45 mph), this may cause the engine
coolant to overheat. Move or angle the
snow plow blade to allow increased
airflow to the radiator.
To increase the airflow, move the snow
plow blade position.
If driving more than 24 km/h (15 mph),
angle the plow blade position.
Make sure the weight on the front and
rear axles does not exceed the axle rating
for each.
Follow the snowplow manufacturer’s
recommendations for any rear ballast that
may be required. Rear ballast may be
required to ensure a proper front and rear
weight distribution ratio even though the
actual weight at the front axle may be
less than the front axle rating.
The snowplow manufacturer or installer
can assist in determining the amount of
rear ballast required to ensure that the
vehicle with the attached snowplow does
not exceed the GVW rating, the front and
rear axle ratings, or the front and rear
weight distribution ratio (refer to the GM
Upfitter Manual).
Caution (Continued)
repairs would not be covered by the
vehicle warranty. Unless the vehicle was
built to carry a snow plow, do not add
one to the vehicle. If the vehicle has RPO
VYU, then the payload the vehicle can
carry will be reduced when a snow plow
is installed. The vehicle can be damaged
if either the front or rear axle ratings or
the Gross Vehicle Weight Rating (GVWR)
are exceeded.
The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see Servicing the Airbag-Equipped
Vehicle 0 68 and Adding Equipment to the
Airbag-Equipped Vehicle 0 68.
.
.
.
For information on wiring auxiliary switches,
dealer.
Adding a Snow Plow or Similar
Equipment
The plow the vehicle can carry depends on
many things, such as:
The options the vehicle came with, and
the weight of those options.
The weight and number of passengers to
be carried.
The weight of items added to the vehicle,
like a tool box or truck cap.
.
.
.
.
.
Caution
Do not exceed 72 km/h (45 mph) with a
snow plow mounted to the vehicle. The
vehicle could overheat and be damaged.
Before installing a snow plow on the vehicle,
follow these guidelines:
.
The total weight of any additional cargo
to be carried.
Caution
To safely carry a snow plow on the vehicle:
If the vehicle does not have the snow
plow prep package, RPO VYU, adding a
plow can damage the vehicle, and the
(Continued)
.
With a snow plow attached, the engine
coolant temperature gauge may show a
higher temperature than while driving
without one. The snow plow could block
330
Driving and Operating
Front axle reserve capacity is the difference
between the Front Gross Axle Weight
Rating (GAWR) and the front axle weight of
the vehicle with full fuel, passengers, and
any other cargo. This is the amount of
weight that can be added to the front axle
before reaching the Front GAWR.
Where:
IW = Weight of added accessory
on the front. However, the front GAWR, rear
GAWR, and Gross Vehicle Weight
Rating (GVWR) must never be exceeded.
IA = Distance that the accessory is in
front of the front axle
Warning
{
IW.B. = Vehicle Wheelbase
On some vehicles that have certain front
mounted equipment, such as a snow
plow, it may be possible to load the front
axle to the front Gross Axle Weight
Rating (GAWR) but not have enough
weight on the rear axle to have proper
braking performance. If the brakes cannot
work properly, the vehice could crash.
Always follow the snow plow
For example, adding a 318 kg (700 lb) snow
plow actually adds more than 318 kg (700 lb)
to the front axle. Using the formula, if the
snow plow is 122 cm (4 ft) in front of the
front axle and the wheelbase is 305 cm
(10 ft), then:
To calculate the amount of weight any front
accessory, such as a snow plow, is adding to
the front axle, use this formula:
IW = 318 kg (700 lb)
IA = 122 cm (4 ft)
manufacturer or installer's
IW.B. = 305 cm (10 ft)
recommendation for rear ballast to
ensure a proper front and rear weight
distribution ratio. Maintaining a proper
front and rear weight distribution ratio is
necessary to provide proper braking
performance.
(W x (A + W.B.)/W.B. = (318 x (122 + 305))/305
= 445 kg (980 lb)
This means if the front axle reserve capacity
is more than 445 kg (980 lb), the snow plow
could be added without exceeding the
front GAWR.
See your dealer for additional advice and
information about using a snow plow on the
vehicle. Also, see Vehicle Load Limits 0 204.
(W x (A + W.B.)) /W.B.= Weight the accessory
is adding to the front axle.
Heavier equipment can be added on the
front of the vehicle if less cargo or fewer
passengers are carried, or by positioning
cargo toward the rear. This reduces the load
Driving and Operating
331
Pickup Conversion to Chassis Cab
We are aware that some vehicle owners
might consider having the pickup box
removed and a commercial or recreational
body installed. Owners should be aware
that, as manufactured, there are differences
between a chassis cab and a pickup with the
box removed which could affect vehicle
safety. The components necessary to adapt
a pickup to permit its safe use with a
specialized body should be installed by the
body builder.
