2022 Jeep Wrangler Cruise Control System
CRUISE CONTROL SYSTEMS — IF EQUIPPED
Your vehicle may be equipped with the Cruise Control system or the Adaptive Cruise Control (ACC) system:
- Cruise Control will keep your vehicle at a constant preset speed.
- Adaptive Cruise Control (ACC) will adjust the vehicle speed up to the preset speed to maintain a distance from the vehicle ahead.
NOTE
- In vehicles equipped with ACC, if ACC is not enabled, Fixed Speed Cruise Control will not detect vehicles directly ahead of you. Always be aware of the feature selected.
- Only one Cruise Control feature can operate at a time. For example, if Fixed Speed Cruise Control is enabled, Adaptive Cruise Control will be unavailable, and vice versa.
CRUISE CONTROL
- When engaged, the Cruise Control takes over accelerator operations at speeds greater than 20 mph (32 km/h).
- The Cruise Control buttons are located on the right side of the steering wheel.
Cruise Control Buttons
- SET (+)/Accel
- CANC/Cancel
- SET (-)/Decal
- On/Off
- RES/Resume
WARNING
Cruise Control can be dangerous when the system cannot maintain a constant speed. Your vehicle could go too fast for the conditions, and you could lose control and have an accident. Do not use Cruise Control in heavy traffic or on roads that are winding, icy, snow-covered or slippery.
To Activate
Push the on/off button to activate the Cruise Control. The cruise indicator light in the instrument cluster display will illuminate. To turn the system off, push the on/off button a second time. The cruise indicator light will turn off. The system should be turned off when not in use.
WARNING
Leaving the Cruise Control system on when not in use is dangerous. You could accidentally set the system or cause it to go faster than you want. You could lose control and have an accident. Always leave the system off when you are not using it.
To Set A Desired Speed
Turn the Cruise Control on.
NOTE
- The vehicle should be traveling at a steady speed and on level ground before pushing the SET (+) or SET (-) button.
- When the vehicle has reached the desired speed, push the SET (+) or SET (-) button and release it. Release the accelerator and the vehicle will operate at the selected speed.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed When the Cruise Control is set, you can increase speed by pushing the SET (+) button, or decrease speed by pushing the SET (-) button. U.S. Speed (mph)
- Pushing the SET (+), or SET (-) button once will result in a 1 mph speed adjustment. Each subsequent tap of the button results in an adjustment of 1 mph.
- If the button is continually pushed, the set speed will continue to adjust in 5 mph increments until the button is released, then the new set speed will be established.
Metric Speed (km/h)
- Pushing the SET (+), or SET (-) button once will result in a 1 km/h speed adjustment. Each subsequent tap of the button results in an adjustment of 1 km/h.
- If the button is continually pushed, the set speed will continue to adjust in 10 km/h increments until the button is released, then the new set speed will be established.
To Accelerate For Passing
While the Cruise Control is set, press the accelerator to pass as you would normally. When the pedal is released, the vehicle will return to the set speed.
USING CRUISE CONTROL ON HILLS
The transmission may downshift on hills to maintain the vehicle’s set speed.
The Cruise Control system maintains speed up and downhills. A slight speed change on moderate hills is normal. On steep hills, a greater speed loss or gain may occur so it may be preferable to drive without Cruise Control.
WARNING
Cruise Control can be dangerous when the system cannot maintain a constant speed. Your vehicle could go too fast for the conditions, and you could lose control and have an accident. Do not use Cruise Control in heavy traffic or on roads that are winding, icy, snow-covered, or slippery.
To Resume Speed
To resume a previously set speed, push the RES button and release. A resume can be used at any speed above 20 mph (32 km/h).
To Deactivate
A tap on the brake pedal, pushing the CANC (cancel) button, or normal brake pressure while slowing the vehicle will deactivate the Cruise Control without erasing the set speed from memory.
The following conditions will also deactivate the Cruise Control without erasing the set speed from memory:
- The vehicle parking brake is applied
- Stability event occurs
- The gear selector is moved out of DRIVE
- Engine Overspeed occurs
- The clutch pedal is pressed (manual transmission only)
- The vehicle is operating at a low RPM (manual transmission only)
Pushing the on/off button or placing the ignition in the OFF position erases the set speed from memory.
ADAPTIVE CRUISE CONTROL (ACC)
Adaptive Cruise Control (ACC) increases the driving convenience provided by Cruise Control while traveling on highways and major roadways. However, it is not a safety system and not designed to prevent collisions. The Cruise Control function performs differently if your vehicle is not equipped with ACC Ú page 169.
NOTE
- If the ACC sensor detects a vehicle ahead, ACC will apply limited braking or accelerate (not to exceed the original set speed) automatically to maintain a preset following distance, while matching the speed of the vehicle ahead.
- Any chassis/suspension or tire size modifications to the vehicle will affect the performance of the Adaptive Cruise Control and Forward Collision Warning system.
- Fixed Speed Cruise Control (ACC not enabled) will not detect vehicles directly ahead of you. Always be aware of the feature selected Ú page 431.
WARNING
- Adaptive Cruise Control (ACC) is a convenience system. It is not a substitute for active driver involvement. It is always the driver’s responsibility to be attentive of road, traffic, and weather conditions, vehicle speed, distance to the vehicle ahead, and, most importantly, brake operation to ensure safe operation of the vehicle under all road conditions. Your complete attention is always required while driving to maintain safe control of your vehicle. Failure to follow these warnings can result in a collision and death or serious personal injury.
- The ACC system:
- Does not react to pedestrians, oncoming vehicles, and stationary objects (e.g., a stopped vehicle in a traffic jam or a disabled vehicle).
- Cannot take the street, traffic, and weather conditions into account, and may be limited upon adverse sight distance conditions.
- Does not always fully recognize complex driving conditions, which can result in wrong or missing distance warnings.
- On vehicles with an automatic transmission, will bring the vehicle to a complete stop while following a vehicle ahead and hold the vehicle for two seconds in the stop position. If the vehicle ahead does not start moving within two seconds, the ACC system will display a message that the system will release the brakes and that the brakes must be applied manually. An audible chime will sound when the brakes are released.
- You should switch off the ACC system:
- When driving in fog, heavy rain, heavy snow, sleet, heavy traffic, and complex driving situations (i.e., in highway construction zones).
- When entering a turn lane or highway off-ramp; when driving on roads that are winding, icy, snow-covered, slippery, or have steep uphill or downhill slopes.
- When towing a trailer up or down steep slopes.
- When circumstances do not allow safe driving at a constant speed.
Adaptive Cruise Control (ACC) Operation
The buttons on the right side of the steering wheel operate the ACC system.
Adaptive Cruise Control Buttons
- Distance Setting Increase
- Adaptive Cruise Control (ACC) On/Off
- Distance Setting Decrease
Adaptive Cruise Control (ACC) Menu
- The instrument cluster display will show the current ACC system settings. The information it displays depends on the ACC system status.
- Push the Adaptive Cruise Control (ACC) on/off button until one of the following appears in the instrument cluster display:
- Adaptive Cruise Control Off
- When ACC is deactivated, the display will read “Adaptive Cruise Control Off.”
- Adaptive Cruise Control Ready
- When ACC is activated, but the vehicle speed setting has not been selected, the display will read “Adaptive Cruise Control Ready.”
- Adaptive Cruise Control Set
- When the SET (+) or the SET (-) button is pushed, the display will read “ACC SET.”
- When ACC is set, the set speed will show in the instrument cluster display.
- The ACC screen may display once again if any of the following ACC activities occur:
- System Cancel
- Driver Override
- System Off
- ACC Proximity Warning`
- ACC Unavailable Warning
- Adaptive Cruise Control Off
The instrument cluster display will return to the last display selected after five seconds of no ACC display activity.
Activating Adaptive Cruise Control (ACC)
- The minimum set speed for the ACC system is 20 mph (32 km/h).
- When the system is turned on and in the ready state, the instrument cluster displays “ACC Ready.”
- When the system is off, the instrument cluster displays “Adaptive Cruise Control (ACC) Off.”
NOTE: You cannot engage ACC under the following conditions:
- When in 4WD Low
- When the brakes are applied
- When the parking brake is applied
- When the automatic transmission is in PARK, REVERSE or NEUTRAL
- When the manual transmission is in FIRST gear
- When the vehicle speed is below 20 mph (32 km/h) (manual transmission)
- When the vehicle speed is below the minimum speed range
- When the brakes are overheated
- When the driver’s door is open at low speeds
- When the driver’s seat belt is unbuckled at low speeds
- When ESC Full Off mode is active
- When Off Road+ (if equipped) is active
To Activate/Deactivate
Push and release the Adaptive Cruise Control (ACC) on/off button. The ACC menu in the instrument cluster display will read “ACC Ready.” To turn the system off, push and release the Adaptive Cruise Control (ACC) on/off button again. At this time, the system will turn off and the instrument cluster display will read “Adaptive Cruise Control (ACC) Off.”
WARNING
Leaving the Adaptive Cruise Control (ACC) system on when not in use is dangerous. You could accidentally set the system or cause it to go faster than you want. You could lose control and have a collision. Always leave the system off when you are not using it.
To Set A Desired Speed
When the vehicle reaches the speed desired, push the SET (+) button or the SET (-) button and release. The instrument cluster display will show the set speed.
NOTE: Fixed Speed Cruise Control can be used without ACC enabled. To change between the different modes, push the ACC on/off button which turns the ACC and the Fixed Speed Cruise Control off. Pushing the Fixed Speed Cruise Control on/off button will result in turning on (changing to) Fixed Speed Cruise Control mode.
WARNING
In Fixed Speed Cruise Control mode, the system will not react to vehicles ahead. In addition, the proximity warning does not activate and no alarm will sound even if you are too close to the vehicle ahead since neither the presence of the vehicle ahead nor the vehicle-to-vehicle distance is detected. Be sure to maintain a safe distance between your vehicle and the vehicle ahead. Always be aware of which mode is selected.
If ACC is set when the vehicle speed is below 20 mph (32 km/h), the set speed will default to 20 mph (32 km/h).
NOTE
- Fixed Speed Cruise Control cannot be set below 20 mph (32 km/h).
- If either system is set when the vehicle speed is above 20 mph (32 km/h), the set speed shall be the current speed of the vehicle.
- On vehicles equipped with a manual transmission, the ACC system cannot be set when the vehicle speed is below 20 mph (32 km/h) or when the vehicle is in FIRST gear.
NOTE
- Keeping your foot on the accelerator pedal can cause the vehicle to continue to accelerate beyond the set speed. If this occurs, the message “DRIVER OVERRIDE” will display in the instrument cluster display.
- If you continue to accelerate beyond the set speed while ACC is enabled, the system will not be controlling the distance between your vehicle and the vehicle ahead. The vehicle speed will only be determined by the position of the accelerator pedal.
To Cancel
The following conditions cancel the ACC or Fixed Speed Cruise Control systems:
- The brake pedal is applied
- The CANC button is pushed
- The Anti-Lock Brake System (ABS) activates
- The gear selector is removed from the DRIVE position
- The Electronic Stability Control/Traction Control System (ESC/TCS) activates
- The vehicle parking brake is applied
- The braking temperature exceeds the normal range (overheated)
- The Trailer Sway Control (TSC) activates
- The vehicle speed is less than 15 mph (24 km/h) (manual transmission only)
- The clutch is pressed for more than 10 seconds (manual transmission only)
- The vehicle is placed in NEUTRAL for more than 10 seconds (manual transmission only)
- The driver shifts to FIRST gear (manual transmission only)
The following conditions will only cancel the ACC system:
- Driver seat belt is unbuckled at low speeds
- Driver door is opened at low speeds
To Turn Off
The system will turn off and erase the set speed in memory if:
- The Adaptive Cruise Control (ACC) on/off button is pushed
- The Fixed Speed Cruise Control on/off button is pushed
- The ignition is placed in the OFF position
- 4WD Low is engaged
To Resume
If there is a set speed in the memory, push the RES button and then remove your foot from the accelerator pedal. The instrument cluster display will show the last set speed. Resume can be used at any speed above 20 mph (32 km/h) when only Fixed Speed Cruise Control is being used. The resume can be used at any speed above 0 mph (0 km/h) when ACC is active.
NOTE
- While in ACC mode, when the vehicle comes to a complete stop longer than two seconds, the system will cancel.
- The driver will have to apply the brakes to keep the vehicle at a standstill. ACC cannot be resumed if there is a stationary vehicle in front of your vehicle in close proximity.
WARNING
The Resume function should only be used if traffic and road conditions permit. Resuming a set speed that is too high or too low for prevailing traffic and road conditions could cause the vehicle to accelerate or decelerate too sharply for safe operation. Failure to follow these warnings can result in a collision and death or serious personal injury.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed
After setting a speed, you can increase the set speed by pushing the SET (+) button, or decrease the speed by pushing the SET (-) button.
U.S. Speed (mph)
- Pushing the SET (+), or SET (-) button once will result in a 1 mph speed adjustment. Each subsequent tap of the button results in an adjustment of 1 mph.
- If the button is continually pushed, the set speed will continue to adjust in 5 mph increments until the button is released. The new set speed is reflected in the instrument cluster display.
Metric Speed (km/h)
- Pushing the SET (+), or SET (-) button once will result in a 1 km/h speed adjustment. Each subsequent tap of the button results in an adjustment of 1 km/h.
- If the button is continually pushed, the set speed will continue to adjust in 10 km/h increments until the button is released. The new set speed is reflected in the instrument cluster display.
NOTE: When you override and push the SET (+) button or SET (-) buttons, the new set speed will be the current speed of the vehicle.
When ACC Is Active
- When you use the SET (-) button to decelerate, if the engine’s braking power does not slow the vehicle sufficiently to reach the set speed, the brake system will automatically slow the vehicle.
- The ACC system applies the brake down to a full stop when following the vehicle in front. If your vehicle follows the vehicle in front to a standstill, your vehicle will release the brakes two seconds after coming to a full stop.
- The ACC system maintains a set speed when driving uphill and downhill. However, a slight speed change on moderate hills is normal. In addition, downshifting may occur while climbing uphill or descending downhill. This is a normal operation and necessary to maintain the set speed. When driving uphill and downhill, the ACC system will cancel if the braking temperature exceeds the normal range (overheated).
Setting The Following Distance In ACC
The specified following distance for ACC can be set by varying the distance setting between four bars (longest), three bars (long), two bars (medium), and one bar (short). Using this distance setting and the vehicle speed, ACC calculates and sets the distance to the vehicle ahead. This distance setting is displayed in the instrument cluster display.
Distance Settings
- Longest Distance Setting (Four Bars)
- Medium Distance Setting (Two Bars)
- Long Distance Setting (Three Bars)
- Short Distance Setting (One Bar)
- To increase the distance setting, push the Distance Setting Increase button and release it. Each time the button is pushed, the distance setting increases by one bar (longer).
- To decrease the distance setting, push the Distance Setting Decrease button and release it. Each time the button is pushed, the distance setting decreases by one bar (shorter).
- If there is no vehicle ahead, the vehicle will maintain the set speed. If a slower moving vehicle is detected in the same lane, the instrument cluster displays the ACC Set With Target Light. The system will then adjust vehicle speed automatically to maintain the distance setting, regardless of the set speed.
- The vehicle will then maintain the set distance until:
- The vehicle ahead accelerates to a speed above the set speed
- The vehicle ahead moves out of your lane or view of the sensor
- The distance setting is changed
- The system disengages Ú page 173
The maximum braking applied by ACC is limited; however, the driver can always apply the brakes manually, if necessary.
NOTE: The brake lights will illuminate whenever the ACC system applies the brakes. A Proximity Warning will alert the driver if ACC predicts that its maximum braking level is not sufficient to maintain the set distance. If this occurs, a visual alert “BRAKE!” will flash in the instrument cluster display and a chime will sound while ACC continues to apply its maximum braking capacity.
NOTE: The “BRAKE!” screen in the instrument cluster display is a warning for the driver to take action and does not necessarily mean that the Forward Collision Warning system is applying the brakes autonomously.
Overtake Aid
When driving with ACC engaged and following a vehicle, the system will provide an additional acceleration up to the ACC set speed to assist in passing the vehicle. This additional acceleration is triggered when the driver utilizes the left turn signal and will only be active when passing on the left hand side.
ACC Operation At A Stop (Automatic Transmission Only)
- In the event that the ACC system brings your vehicle to a standstill while following a target vehicle, your vehicle will resume motion without the need for any driver action if the target vehicle starts moving within two seconds of your vehicle coming to a standstill.
- If the target vehicle does not start moving within two seconds of your vehicle coming to a standstill, the ACC with Stop system will cancel and the brakes will release. A cancel message will display on the instrument cluster display and produce a warning chime. Driver intervention will be required at this moment.
- While ACC with Stop is holding your vehicle at a standstill, if the driver seatbelt is unbuckled or the driver door is opened, the ACC with Stop system will cancel and the brakes will release. A cancel message will display on the instrument cluster display and produce a warning chime. Driver intervention will be required at this moment.
WARNING
When the ACC system is resumed, the driver must ensure that there are no pedestrians, vehicles or objects in the path of the vehicle. Failure to follow these warnings can result in a collision and death or serious personal injury.
Display Warnings And Maintenance
“WIPE FRONT RADAR SENSOR IN FRONT OF VEHICLE” WARNING
- The “ACC/FCW Unavailable Wipe Front Radar Sensor” warning will display and a chime will sound when conditions temporarily limit system performance.
- This most often occurs at times of poor visibility, such as in snow or heavy rain. The ACC system may also become temporarily blinded due to obstructions, such as mud, dirt or ice. In these cases, the instrument cluster display will display “ACC/FCW Unavailable Wipe Front Radar Sensor” and the system will deactivate.
- The “ACC/FCW Unavailable Wipe Front Radar Sensor” message can sometimes be displayed while driving in highly reflective areas (i.e. tunnels with reflective tiles, or ice and snow). The ACC system will recover after the vehicle has left these areas. Under rare conditions, when the radar is not tracking any vehicles or objects in its path this warning may temporarily occur.
NOTE
If the “ACC/FCW Unavailable Wipe Front Radar Sensor” warning is active, Fixed Speed Cruise Control is still available. If weather conditions are not a factor, the driver should examine the sensor. It may require cleaning or removal of an obstruction. The sensor is located in the center of the vehicle behind the lower grille. To keep the ACC system operating properly, it is important to note the following maintenance items:
- Always keep the sensor clean. Carefully wipe the sensor lens with a soft cloth. Be cautious not to damage the sensor lens.
- Do not remove any screws from the sensor. Doing so could cause an ACC system malfunction or failure and require a sensor realignment.
- If the sensor or front end of the vehicle is damaged due to a collision, see an authorized dealer for service.
- Do not attach or install any accessories near the sensor, including transparent material or after-market grilles. Doing so could cause an ACC system failure or malfunction.
When the condition that deactivated the system is no longer present, the system will return to the “Adaptive Cruise Control Off” state and will resume function by simply reactivating it.
NOTE: If the “ACC/FCW Unavailable Wipe Front Radar Sensor” message occurs frequently (e.g. more than once on every trip) without any snow, rain, mud, or other obstruction, have the radar sensor realigned at an authorized dealer.
“CLEAN FRONT WINDSHIELD” WARNING
The “ACC/FCW Limited Functionality Clean Front Windshield” warning will display and a chime will sound when conditions temporarily limit system performance. This most often occurs at times of poor visibility, such as in snow or heavy rain and fog. The ACC system may also become temporarily blinded due to obstructions, such as mud, dirt, or ice on the windshield and fog on the inside of the glass. In these cases, the instrument cluster display will display “ACC/FCW Limited Functionality Clean Front Windshield” and the system will have degraded performance. The “ACC/FCW Limited Functionality Clean Front Windshield” message can sometimes be displayed while driving in adverse weather conditions. The ACC/FCW system will recover after the vehicle has left these areas. Under rare conditions, when the camera is not tracking any vehicles or objects in its path this warning may temporarily occur.
If weather conditions are not a factor, the driver should examine the windshield and the camera located on the backside of the inside rearview mirror. They may require cleaning or removal of an obstruction.
When the condition that created limited functionality is no longer present, the system will return to full functionality.
NOTE: If the “ACC/FCW Limited Functionality Clean Front Windshield” message occurs frequently (e.g. more than once on every trip) without any snow, rain, mud, or other obstruction, have the windshield and forward-facing camera inspected at an authorized dealer.
“SERVICE ACC/FCW” WARNING
If the system turns off, and the instrument cluster displays “ACC/FCW Unavailable Service Required” or “Cruise/FCW Unavailable Service Required”, there may be an internal system fault or a temporary malfunction that limits ACC functionality. Although the vehicle is still drivable under normal conditions, ACC will be temporarily unavailable. If this occurs, try activating ACC again later, following an ignition cycle. If the problem persists, see an authorized dealer.
Precautions While Driving With ACC
In certain driving situations, ACC may have detection issues. In these cases, ACC may brake late or unexpectedly. The driver needs to stay alert and may need to intervene. The following are examples of these types of situations:
TOWING A TRAILER
Towing a trailer is not recommended when using ACC.
OFFSET DRIVING
ACC may not detect a vehicle in the same lane that is offset from your direct line of travel, or a vehicle merging in from a side lane. There may not be sufficient distance to the vehicle ahead. The offset vehicle may move in and out of the line of travel, which can cause your vehicle to break or accelerate unexpectedly.
TURNS AND BENDS
When driving on a curve with ACC engaged, the system may decrease the vehicle speed and acceleration for stability reasons, with no vehicle in front detected. Once the vehicle is out of the curve the system will resume your original set speed. This is a part of normal ACC system functionality.
NOTE: On tight turns, ACC performance may be limited.
USING ACC ON HILLS
ACC performance may be limited when driving on hills. ACC may not detect a vehicle in your lane depending on the speed, vehicle load, traffic conditions, and the steepness of the hill.
LANE CHANGING
ACC may not detect a vehicle until it is completely in the lane in which you are traveling. In the following lane changing example, ACC has not yet detected the vehicle changing lanes and it may not detect the vehicle until it’s too late for the ACC system to take action. ACC may not detect a vehicle until it is completely in the lane. There may not be sufficient distance to the lane-changing vehicle. Always be attentive and ready to apply the brakes if necessary.
NARROW VEHICLES
Some narrow vehicles traveling near the outer edges of the lane or edging into the lane are not detected until they have moved fully into the lane. There may not be sufficient distance to the vehicle ahead.
STATIONARY OBJECTS AND VEHICLES
ACC does not react to stationary objects or vehicles. For example, ACC will not react in situations where the vehicle you are following exits your lane and the vehicle ahead is stopped in your lane. It will consider this stopped vehicle a stationary object as it did not previously detect movement from it. Always be attentive and ready to apply the brakes if necessary.