Driving and Operating -> Conversions and Add-Ons for Your Chevrolet Silverado 1500 Light Truck 2023

328  
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  
{
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  
vehicles 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 manufacturers  
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.