Attention:
- To avoid damage to transmission components, 4WD models must not be towed using the partial load method (lifting only one of the vehicle axles).
- Use tires of the same size, design and load capacity as the original vehicle tires, as using tires of a different type may interfere with the normal operation of the four-wheel drive control system and the operation of the safety mechanism!
Cadillac Escalade
Your car is equipped with an all-wheel drive system with active torque distribution between the front and rear axles, which allows you to increase the car's cross-country ability. The distribution of torque occurs depending on:
- vehicle driving conditions (off-road, slippery or normal road);
- driving mode (acceleration, deceleration or uniform motion);
- engine load;
- And so on.
The ratio of torque between the front and rear wheels is not a constant value, but varies depending on driving conditions. The ratio can vary from 0:100 (front: rear) until 50:50. Thus, the torque on the front wheels cannot exceed the torque supplied to the rear wheels.
The torque ratio of 0:100 is set by the system only when driving at low speed on good roads. In other cases, the system delivers torque to the front wheels and in difficult driving conditions the torque ratio reaches 50:50 (front:back).
Chevrolet Tahoe, Avalanche: 4WD system
The all-wheel drive system allows you to drive a car using one of four wheel drive modes:
- 1. The drive is carried out only on the rear wheels (switch pressed "2↑").
- 2. The drive is carried out on the front and rear wheels (switch pressed "4↑").
- 3. The drive is carried out on the front and rear wheels with the inclusion of a downshift (switch pressed "4↓").
- 4. Wheel drive control is automatic (switch pressed "AUTO 4WD").
When one of the four-wheel drive control switches is pressed, a corresponding signal is sent to the 4WD electronic control unit, after which the control system switches to the specified mode.
4WD system operating modes
Changing the operating mode of the 4WD system is carried out using the switches located to the left of the instrument cluster. At the same time, the indicator on the switch will light up.
Note: The indicators on the 4WD system control switches come on when the ignition is turned on and go out after a few seconds' A constant flashing of the indicators indicates a malfunction in the 4WD system.
![](https://www.chevyman.ru/img/tahoe/1100.jpg)
2WD mode
1. The drive is carried out only on the rear wheels. Recommended for use under normal driving conditions (on good roads). Driving in this transmission mode gives the best fuel economy, best vehicle handling, and minimal tire and transmission wear.
2. Switch to mode "2WD" carried out by pressing the switch "2↑" regardless of speed (except switching from 4WD LO mode).
4WD AUTO Mode
1. This wheel drive mode is used when driving on roads with variable conditions. In mode "4WD AUTO" the front axle is connected, however, the torque is transmitted completely to the rear wheels. Four-wheel drive will be switched on only when traction is reduced. This mode is also economical.
2. Switch to mode "4WD AUTO" carried out by pressing the switch "4WD AUTO" regardless of speed (except switching from 4WD LO mode). In this case, the indicator on the switch will flash until the mode switching is completed.
4WD mode
1. The drive is carried out on the front and rear wheels. It is recommended to use when driving on wet, as well as covered with ice or snow roads. This position gives a more stable ride.
2. Switch to mode "4WD" carried out by pressing the switch "4WD" regardless of speed (except switching from 4WD LO mode). In this case, the indicator on the switch will flash until the mode switching is completed.
4WD LO Mode
1. The drive is carried out on the front and rear wheels with a reduction gear. This mode is used for maximum power and traction when climbing steep grades, descending steep grades, and driving on rough roads such as mud.
Attention: it is not recommended to use the four-wheel drive mode when driving under normal conditions. Using all-wheel drive will lead to increased fuel consumption and tire wear.
2. Turn on the mode "4WD LO" carried out when the key in the lock is set to the position "ON", the car is stationary (or moving at a speed of less than 5 km/h) and the automatic transmission selector is set to the position "N". Before moving the automatic transmission selector to the start position, wait until the indicator on the switch "4↓" will not go out.
Attention: moving the automatic transmission selector to the driving position before the indicator on the switch "4↓" goes out, it may damage the transfer case.
Note: if you press the switch "4↓" while driving or when the automatic transmission selector is not set to "N", the indicator on the switch will flash for 30 seconds and then the previous wheel drive mode will be activated.
3. Switching the four-wheel drive control system from the mode "4WD LO" in any other carried out when the car is stationary (or moving at a speed of less than 5 km/h), the automatic transmission selector is set to position "N" and the ignition switch is in position "ON". Before moving the automatic transmission selector to the start position, wait until the indicator on the selected mode switch goes out.
Mode "NEUTRAL"
1. Turn on the mode "NEUTRAL" only when the vehicle is being towed.
Attention: when setting the mode "NEUTRAL" always apply the parking brake when the vehicle is parked, as the vehicle may roll even when the automatic transmission selector is set to "P".
2. Turn on the mode "NEUTRAL" is carried out as follows:
- A) Make sure the vehicle is stationary.
- b) Apply the parking brake.
- V) Start the engine or turn the ignition key to the "ON".
- G) Set the automatic transmission selector to position "N".
- d) Turn on the mode "2WD".
- e) Simultaneously press and hold the switches "2↑" And "4↓" within 10 seconds. When the mode "NEUTRAL" will be switched on, the red indicator next to the symbol will light up "N".
- and) If the engine is running, make sure the transmission is in "N", by moving the selector for one second to the position "R ", then for one second to position "D".
- h) Switch off the ignition.
- And) Set the automatic transmission selector to position "P".
3. To turn off the mode "NEUTRAL" do the following:
- A) Apply the parking brake and depress the brake pedal.
- b) Move the automatic transmission selector to position "N" and turn the ignition key to position "ON" (engine off).
- V) Select the required wheel drive mode (2WD, 4WD, AUTO 4WD or 4WD LO).
- G) When the 4WD system switches modes, the red indicator next to the symbol "N" will go out. After that, you can start the engine and start moving.
Chevrolet Tahoe: AWD with StabiliTrak
The AWD system is similar to the 4WD system, the difference is that there is no switch to connect or disconnect the front axle. Wheel drive is controlled automatically, depending on road conditions.
AWD System Modes
The AWD mode switches are located to the left of the instrument cluster. When you press the switch, the indicator on it will light up.
Note: The lights on the AWD control switches come on when the ignition is turned on and go out after a few seconds. Constant flashing of the indicators indicates a malfunction in the AWD system.
![](https://www.chevyman.ru/img/tahoe/1101.jpg)
StabiliTrak Mode
Pressing the
![](https://www.chevyman.ru/img/tahoe/1102.jpg)
AWD mode
In AWD mode, the distribution of torque occurs between all wheels, depending on road conditions.
4LO Mode
1. Wheel speed is maintained by engine braking. This mode is used for maximum power and traction when climbing steep grades, descending steep grades, and driving on rough roads such as mud.
2. Turn on the mode "LO" performed when the key in the lock is set to the position "ON", the car is stationary (or moving at a speed of less than 5 km/h) and the automatic transmission selector is set to the position "N". Before moving the automatic transmission selector to the start position, wait until the indicator on the switch "4↓" will not go out.
Attention: moving the automatic transmission selector to the driving position before the indicator on the switch "4↓" goes out, it may damage the transfer case.
Note: if you press the switch "4↓" while driving or when the automatic transmission selector is not set to "N", the indicator on the switch will flash for 30 seconds and then the previous wheel drive mode will be activated.
3. Switching the four-wheel drive control system from the mode "LO" in any other carried out when the car is stationary (or moving at a speed of less than 5 km/h), the automatic transmission selector is set to position "N" and the ignition switch is in position "ON". Before moving the automatic transmission selector to the start position, wait until the indicator on the selected mode switch goes out.
Mode "NEUTRAL"
1. Turn on the mode "NEUTRAL" only when the vehicle is being towed.
Attention: when setting the mode "NEUTRAL" always apply the parking brake when the vehicle is parked, as the vehicle may roll even when the automatic transmission selector is set to "P".
2. Turn on the mode "NEUTRAL" is carried out as follows:
- A) Make sure the vehicle is stationary.
- b) Apply the parking brake.
- V) Start the engine or turn the ignition key to the "ON".
- G) Set the automatic transmission selector to position "N".
- d) Turn on the mode "AWD".
- e) Simultaneously press and hold the switches "
" And "4↓" within 10 seconds. When the mode "NEUTRAL" will be switched on, the red indicator next to the symbol will light up "N".
- and) If the engine is running, make sure the transmission is in "N", by moving the selector for one second to the position "R ", then for one second to position "D".
- h) Set the automatic transmission selector to position "P".
- And) Switch off the ignition.
3. To turn off the mode "NEUTRAL" do the following:
- A) Apply the parking brake and depress the brake pedal.
- b) Move the automatic transmission selector to position "N" and turn the ignition key to position "ON" (engine off).
- V) Select the desired AWD operating mode.
- G) When the AWD system switches modes, the red indicator next to the symbol "N" will go out. After that, you can start the engine and start moving.