automatic transmission GMC YUKON 2021 Get To Know Guide

3
Refer to your Owner’s Manual to learn about the information being relayed by the lights, gauges and indicators on the instrument cluster.
See Introduction in your Owner’s Manual.
Climate Control Automatic Operation
Infotainment System Touch Screen
Passenger’s Heated/Ventilated Seat ButtonsF
Climate Control Sync Settings (Synchronize passenger’s settings to driver’s settings)
Infotainment System Controls
Rear Climate Controls On-Off/ Rear Display Buttons
Climate Control Fan Speed/Air Delivery Modes
Driver’s Heated/ Ventilated Seat ButtonsF
Electronic Precision Shift Transmission Controls
Hazard Warning Flashers Button
USB Ports/ Accessory Power Outlet/Wireless Charging PadF
AUTO 4WD Mode
Hill Descent Control
Lane Keep Assist
Vehicle Ahead
Automatic Emergency Braking
Engine Coolant
Pedestrian Ahead
StabiliTrak Active
StabiliTrak Off
Trailer Sway Control
Door Ajar
F Optional equipment
Denali model shown

5
The fuel-saving Engine Stop/Start system automatically turns off the engine, referred to as an Auto Stop, when the brake pedal is pressed and the vehicle is at a complete stop, if certain operating conditions are met. In Auto Stop mode, the tachometer will read AUTO STOP. When the brake pedal is released or the accelerator pedal is pressed, the engine will restart. After parking the vehicle and turning off the engine, the tachometer will read OFF.
The engine may remain running or restart when the vehicle is stopped if:
• A minimum vehicle speed was not reached prior to stopping.
• The engine or transmission is not at the required operating temperature.
• The outside temperature is not in the required operating range.
• The shift lever is in any gear other than Drive (D).
• The battery charge is low.
• The climate control system requires the engine to run based on the current settings.
• The Auto Stop has reached the maximum allowed time.
AUTO ENGINE STOP/START DISABLE
Press the $ button on the left side of the instrument panel to turn off the system. The button indicator turns off when the system is disabled.
The Auto Engine Stop/Start system is enabled each time the vehicle is started.
See Driving and Operating in your Owner’s Manual.
AUTO ENGINE STOP/START OPERATION
KEYLESS (PUSHBUTTON) START
The Remote Keyless Entry transmitter (key fob) must be in the vehicle to turn on the ignition.
STARTING THE ENGINE
With the vehicle in Park or Neutral, press the brake pedal and then press and hold the ENGINE START/STOP button to start the engine. The green indicator on the button will illuminate.
Note: If the key fob battery is weak, place the key fob in the center console left cupholder to enable the engine to start. Replace the key fob battery as soon as possible.
STOPPING THE ENGINE/OFF
Shift to Park and press the ENGINE START/STOP button to turn off the engine.
ACCESSORY MODE
With the engine off and the brake pedal not depressed, press the ENGINE START/ STOP button to place the ignition in accessory mode to operate the radio, win-dows and other accessories with the engine off. The amber button indicator will illuminate. Press and hold the ENGINE START/STOP button for several seconds to place the ignition in Service Mode to operate additional systems.
See Driving and Operating in your Owner’s Manual.
F Optional equipmentF Optional equipment

6
ELECTRONIC PRECISION SHIFT TRANSMISSION
The Electronic Precision Shift transmission control switches are located on the center of the instru-ment panel. The selected gear position illuminates in red on the switch.
Park – Press the P button to shift to Park.
Reverse – Pull the R switch to shift to Reverse.
Neutral – Press and hold the N button to shift to Neutral.
Drive – Pull the D switch to shift to Drive.
Note: To place the transmission in Neutral for an extended period while using an automatic car wash, refer to Car Wash Mode in your Owner’s Manual.
ELECTRONIC RANGE SELECT MODE
Electronic Range Select Mode allows you to choose the top gear limit. It can be used to limit the vehicle’s speed when driving on a downhill grade or towing a trailer.
1. With the transmission in D (Drive), press the L (Low) button.
2. Press the + (plus) or – (minus) button to increase or decrease the gear range avail-able. The highest available gear is displayed on the Driver Information Center.
If vehicle speed is too high for the requested gear, the shift will not occur.
See Driving and Operating in your Owner’s Manual.
DRIVER INFORMATION CENTER
The Driver Information Center (DIC) on the instrument cluster displays a variety of vehicle messages and system information.
DIC CONTROLS
Use the controls on the right side of the steering wheel to view the various menus.
Press the or buttons (A) to move between the display pages.
Rotate the thumbwheel (B) up or down to move through the menus.
Press the thumbwheel to open a menu, select an item, or clear a
message.
SELECT INFO PAGESF
1. Open the Info or Options menu.
2. Scroll to Info Page Options. Press the thumb-wheel to enter the menu.
3. Scroll through the list of items.
4. Press the thumbwheel to select/deselect an item to display in the Info menu.
Fully equipped model shown
See Instruments and Controls in your Owner’s Manual.F Optional equipment
Denali model shown
B
A

15F Optional equipment
DRIVER MODE CONTROLF/FOUR-WHEEL DRIVEF
DRIVER MODE CONTROL
The Driver Mode Control settings automatically adjust various vehicle control systems based on driving preferences, weather and road condi-tions. The modes are displayed on the Driver Information Center.
Rotate the Driver Mode Control knob (A) on the left side of the instrument panel to select a mode.
Normal – Use for normal driving.
Sport – Use for enhanced responsiveness on paved roads.
Snow/Ice (2WD only) – Use for enhanced traction during slippery conditions.
Off-Road (4WD only) – Use for enhanced control on unpaved roads or trails at moderate speeds.
Tow/Haul – Use to reduce shift cycling when towing or hauling heavy loads in stop-and-go traffic, rolling hills, or busy parking lots.
Terrain (4WD onlyF) – Press the button for enhanced control in low-speed off-road conditions. The system automatically provides light vehicle braking to simulate engine vehicle braking. Only available with the single-speed transfer case when in 4
4
2
.
FOUR-WHEEL DRIVE
Use the four-wheel drive buttons (B) on the left side of the instrument panel to shift into and out of four-wheel drive. The Driver Information Center displays the current status of the transfer case.
AUTO Automatic 4WD High – Use when traction conditions vary.
4
4
2
2WD High – Use for most streets and highways.
4
4
2
4WD High – Use when extra traction is needed or in most off-road driving.
Shift between
44
2
, 4
4
2
, and AUTO at normal driving speeds.
44
2
4WD Low (2-Speed Transfer CaseF) – Use when driving off-road in deep sand, mud or snow, or on steep hills. Shift into or out of this mode when the vehicle is stopped or moving less than 3 mph with the transmission in Neutral. Shift the trans-mission into gear when the indicator light stops flashing.
N Neutral (2-Speed Transfer CaseF) – Use to dolly or dinghy tow the vehicle. Refer to your Owner’s Manual for the shift procedure.
See Driving and Operating in your Owner’s Manual.
4WD model shown
A
B