Trailer Gain Adjustment Procedure; Driving and Operating; Other ITBC-Related DIC Messages- Page 296

2022 Chevrolet suburban Owner Manual

Model Year
2014 Dodge Charger SRT Owner Manual

Table of Contents

22_CHEV_Tahoe_Suburban_OM_en_US_U_84793869A_2021AUG09
04-Instruments and Controls_en_US
Instruments and Controls
08-Driving and Operating_en_US
Driving and Operating
09-Vehicle Care_en_US
Vehicle Care
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Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/

Mexico-15555985) - 2022 - CRC - 8/3/21

Driving and Operating

295

lamps will come on when either vehicle
brakes or manual trailer brakes are applied
and properly connected.

Trailer Gain Adjustment Procedure

Trailer Gain should be set for a specific
trailering condition and it must be
readjusted anytime vehicle loading, trailer
loading, or road surface conditions change.

{

Warning

Trailer brakes that are over-gained or
under-gained may not stop the vehicle
and the trailer as intended and can result
in a crash. Always follow the instructions
to set the Trailer Gain for the proper
trailer stopping performance.

To adjust Trailer Gain for each towing
condition:

1. Drive the vehicle with the trailer

attached on a level road surface
representative of the towing condition
and free of traffic at about 32 to
40 km/h (20 to 25 mph) and fully apply
the Manual Trailer Brake apply lever.

Note

Adjusting Trailer Gain at speeds lower than
32 to 40 km/h (20 to 25 mph) may result in
an incorrect gain setting.

2. Adjust the Trailer Gain, using the Trailer

Gain adjustment buttons, to just below
the point of trailer wheel lock-up,
indicated by trailer wheel squeal or tire
smoke when a trailer wheel locks.

Note

Trailer wheel lock-up may not occur if
towing a heavily loaded trailer. In this case,
adjust the Trailer Gain to the highest
allowable setting for the towing condition.

3. Readjust Trailer Gain any time vehicle

loading, trailer loading, or road surface
conditions change or if trailer wheel
lock-up is noticed at any time while
towing.

Other ITBC-Related DIC Messages

TRAILER CONNECTED: This message will
briefly display when a trailer with electric
brakes is first connected to the vehicle. This
message will automatically turn off in about
10 seconds. This message can be
acknowledged before it automatically
turns off.

CHECK TRAILER WIRING: This message will
display if:

.

The ITBC system first determines
connection to a trailer with electric brakes
and then the trailer harness becomes
disconnected the vehicle.
If the disconnect occurs while the vehicle
is stationary, this message will
automatically turn off in about
30 seconds. This message will also turn
off if it is acknowledged or if the trailer
harness is reconnected.
If the disconnect occurs while the vehicle
is moving, this message will continue
until the ignition is turned off. This
message will also turn off if it is
acknowledged or if the trailer harness is
reconnected.

.

There is an electrical fault in the wiring to
the trailer brakes. This message will
continue as long as there is an electrical
fault in the trailer wiring. This message
will also turn off if it is acknowledged.

To determine whether the electrical fault is
on the vehicle side or trailer side of the
trailer wiring harness connection:

1. Disconnect the trailer wiring harness

from the vehicle.

Detailed Information for 2022 Chevrolet suburban Owner Manual

Lists of information found in 2022 Chevrolet suburban Owner Manual - Page 296

  • 1. Drive the vehicle with the trailer attached on a level road surface representative of the towing condition and free of traffic at about 32 to 40 km/h (20 to 25 mph) and fully apply the Manual Trailer Brake apply lever.
  • 2. Adjust the Trailer Gain, using the Trailer Gain adjustment buttons, to just below the point of trailer wheel lock-up, indicated by trailer wheel squeal or tire smoke when a trailer wheel locks.
  • 3. Readjust Trailer Gain any time vehicle loading, trailer loading, or road surface conditions change or if trailer wheel lock-up is noticed at any time while towing.
  • 1. Disconnect the trailer wiring harness from the vehicle.