
D (Drive) with Grade Assist (if equipped)
Press the transmission control
switch on the side of the gearshift
lever to activate grade assist.
Grade assist:
•Improves driving experience in hilly terrain or mountainous areas by
providing additional grade (engine) braking and extends lower gear
operation on uphill climbs.
•Provides additional engine braking through the automatic transmission
shift strategy which reacts to vehicle inputs (vehicle acceleration,
accelerator pedal, brake pedal and vehicle speed).
•Allows the transmission to select gears that will provide the desired
engine braking based on the vehicle inputs mentioned above. This will
increase engine RPM during engine braking.
•The grade assist lamp in the instrument cluster is
illuminated.
Grade assist is designed to provide optimal gear selection in hilly terrain
or mountainous areas. It is recommended that you return to D (Drive) on
flat terrain to provide the best fuel economy and transmission function.
Press the transmission control switch again to return to O/D (overdrive
mode).
•The grade assist lamp in the instrument cluster will not be illuminated.
•The transmission will operate in gears one through six.
L (Low)
•Provides maximum engine braking
•Will downshift to the lowest available gear for the current vehicle
speed; allows for first gear when vehicle reaches lower speeds
•Is not intended for use under extended or normal driving conditions
and results in lower fuel economy.
PRNDL
Transmission211
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

S (Sport)
Moving the gearshift lever to S (Sport):
•Provides additional grade (engine) braking and extends lower gear
operation to enhance performance for uphill climbs, hilly terrain or
mountainous areas. This will increase engine RPM during engine
braking.
•Provides additional lower gear operation through the automatic
transmission shift strategy which reacts to vehicle inputs (vehicle
acceleration, accelerator pedal, brake pedal and vehicle speed).
•Gears are selected more quickly and at higher engine speeds.
SelectShift Automatic™ Transmission (If Equipped)
Note:Your transmission must be in S (Sport) for SelectShift to operate
properly.
Your SelectShift automatic transmission gives you the ability to manually
change gears if you’d like. To use SelectShift, move the gearshift lever
into S (Sport). Now you can use select shift to manually change gears.
Note:The system will stay in S (Sport) until the gear shift lever is
moved into another gear for example P (park) or D (Drive).
If your vehicle is equipped with the +/– buttons on the side of your
gearshift lever:
•Press (–) on the gearshift lever
button to manually downshift the
transmission.
•Press (+) on the gearshift lever
button to manually upshift the
transmission.
212Transmission
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

If your vehicle is equipped with paddles on the steering wheel:
•Pull the left paddle(–)to
downshift the transmission.
•Pull the right paddle (+) to upshift
the transmission.
Upshift to the recommended shift speeds according to the following
chart:
Upshifts when accelerating (recommended for best fuel
economy)
Shift from:
1 - 2 15 mph (24 km/h)
2 - 3 25 mph (40 km/h)
3 - 4 40 mph (64 km/h)
4 - 5 45 mph (72 km/h)
5 - 6 50 mph (80 km/h)
The instrument cluster will show the selected gear you are currently in.
In order to prevent the engine from running at too low an RPM, which
may cause it to stall, SelectShift will automatically make some downshifts
if it has determined that you have not downshifted in time. It will still
allow you to downshift at any time as long as SelectShift determines that
the engine will not be damaged from over-revving.
Note:If manual control is no longer desired, you must return the gear
shift lever from S (Sport) to D (Drive).
Note:Engine damage may occur if excessive engine revving is held
without shifting.
Automatic transmission adaptive learning
This feature is designed to increase durability and provide consistent
shift feel over the life of the vehicle. A new vehicle or transmission may
have firm and/or soft shifts. This operation is considered normal and will
not affect function or durability of the transmission. Over time, the
adaptive learning process will fully update transmission operation.
Additionally, whenever the battery is disconnected or a new battery
installed, the strategy must be relearned.
Transmission213
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

Brake-shift interlock
WARNING:Do not drive your vehicle until you verify that the
brakelamps are working.
WARNING:When doing this procedure, you will be taking the
vehicle out of park which means the vehicle can roll freely. To
avoid unwanted vehicle movement, always fully set the parking brake
prior to doing this procedure. Use wheel chocks if appropriate.
WARNING:If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be working
properly. See your authorized dealer.
Note:See your authorized dealer as soon as possible if this procedure is
used.
This vehicle is equipped with a brake-shift interlock feature that prevents
the gearshift lever from being moved from P (Park) when the ignition is
on unless the brake pedal is pressed.
If you cannot move the gearshift lever out of P (Park) with the ignition
on and the brake pedal pressed, it is possible that a fuse has blown or
the vehicle’s brake lamps are not operating properly. Refer to theFuses
chapter.
If the fuse is not blown and the brake lamps are working properly, the
following procedure will allow you to move the gearshift lever from P
(Park):
1. Apply the parking brake, turn the
ignition off, and remove the key.
2. Using a screwdriver (or similar
tool), carefully pry off and remove
the chrome trim ring (A) from the
shifter base.
3. Open the storage compartment
lid and carefully pry the trim panel
(B) up from rear attachments on
the storage compartment and
disconnect it from the console.
A
B
214Transmission
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

4. Locate the brake shift interlock
lever on the passenger side of the
shifter assembly.
5. Apply the brake pedal. Using a
screwdriver (or similar tool), press
and hold the brake shift interlock
lever while pulling the gearshift lever
out of the P (Park) and into the N
(Neutral).
6. Install the trim panel (B) and chrome ring (A) in reverse order.
7. Apply brake pedal, start the vehicle, and release the parking brake.
If Your Vehicle Gets Stuck in Mud or Snow
Note:Do not rock the vehicle if the engine is not at normal operating
temperature or damage to the transmission may occur.
Note:Do not rock the vehicle for more than a minute or damage to the
transmission and tires may occur, or the engine may overheat.
If your vehicle gets stuck in mud or snow, it may be rocked out by
shifting between forward and reverse gears, stopping between shifts in a
steady pattern. Press lightly on the accelerator in each gear.
Transmission215
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

Driving In Special Conditions With All-Wheel Drive (AWD)
AWD vehicles are equipped for driving on sand, snow, mud and rough
roads and have operating characteristics that are somewhat different
from conventional vehicles, both on and off the highway.
When driving at slow speeds in deep sand under high outside
temperatures, use a low gear when possible. Lower gear operation will
maximize the engine and transmission cooling capability.
Under severe operating conditions, the A/C may cycle on and off to
protect overheating of the engine.
Basic operating principles in special conditions
•Drive slower in strong crosswinds which can affect the normal steering
characteristics of your vehicle.
•Be extremely careful when driving on pavement made slippery by
loose sand, water, gravel, snow or ice.
If Your Vehicle Goes Off the Edge of the Pavement
•If your vehicle goes off the edge of the pavement, slow down, but
avoid severe brake application, ease the vehicle back onto the
pavement only after reducing your speed. Do not turn the steering
wheel too sharply while returning to the road surface.
•It may be safer to stay on the apron or shoulder of the road and slow
down gradually before returning to the pavement. You may lose
control if you do not slow down or if you turn the steering wheel too
sharply or abruptly.
•It often may be less risky to strike small objects, such as highway
reflectors, with minor damage to your vehicle rather than attempt a
sudden return to the pavement which could cause the vehicle to slide
sideways out of control or rollover. Remember, your safety and the
safety of others should be your primary concern.
If Your Vehicle Gets Stuck
WARNING:Always set the parking brake fully and make sure the
gearshift is latched in P (Park). Turn the ignition to the lock
position and remove the key whenever you leave your vehicle.
WARNING:If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be working
properly. See your authorized dealer.
All-Wheel Drive217
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

WARNING:Do not spin the wheels at over 35 mph (56 km/h).
The tires may fail and injure a passenger or bystander.
Note:Do not rock the vehicle if the engine is not at normal operating
temperature or damage to the transmission may occur.
Note:Do not rock the vehicle for more than a few minutes or damage to
the transmission and tires may occur or the engine may overheat.
If your vehicle gets stuck in mud or snow it may be rocked out by
shifting between forward and reverse gears, stopping between shifts, in a
steady pattern. Press lightly on the accelerator in each gear.
If your vehicle is equipped with AdvanceTracwith Roll Stability
Control™, it may be beneficial to disengage the AdvanceTracwith Roll
Stability Control™ system while attempting to rock the vehicle.
Emergency Maneuvers
•In an unavoidable emergency situation where a sudden sharp turn
must be made, remember to avoid “over-driving” your vehicle (i.e.,
turn the steering wheel only as rapidly and as far as required to avoid
the emergency). Excessive steering will result in less vehicle control,
not more. Additionally, smooth variations of the accelerator and/or
brake pedal pressure should be utilized if changes in vehicle speed are
called for. Avoid abrupt steering, acceleration or braking which could
result in an increased risk of loss of vehicle control, vehicle rollover
and/or personal injury. Use all available road surface to return the
vehicle to a safe direction of travel.
•In the event of an emergency stop, avoid skidding the tires and do not
attempt any sharp steering wheel movements.
•If the vehicle goes from one type of surface to another (i.e., from
concrete to gravel) there will be a change in the way the vehicle
responds to a maneuver (steering, acceleration or braking). Again,
avoid these abrupt inputs.
Sand
When driving over sand, try to keep all four wheels on the most solid
area of the trail. Avoid reducing the tire pressures but shift to a lower
gear and drive steadily through the terrain. Apply the accelerator slowly
and avoid spinning the wheels.
218All-Wheel Drive
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)

Do not drive your AWD vehicle in deep sand for an extended period of
time. This will cause the AWD system to overheat. After the system has
cooled down, normal AWD function will return. When driving at slow
speeds in deep sand under high outside temperatures, use L (Low) gear
when possible. L (Low) gear operation will maximize the engine and
transmission cooling capability.
Under severe operating conditions, the A/C may cycle on and off to
protect overheating of the engine.
Avoid excessive speed because vehicle momentum can work against you
and cause the vehicle to become stuck to the point that assistance may
be required from another vehicle. Remember, you may be able to back
out the way you came if you proceed with caution.
Mud and Water
If you must drive through high water, drive slowly. Traction or brake
capability may be limited.
When driving through water, determine the depth; avoid water higher
than the bottom of the wheel rims (for cars) or the bottom of the hubs
(for trucks) (if possible) and proceed slowly. If the ignition system gets
wet, the vehicle may stall.
Once through water, always try the brakes. Wet brakes do not stop the
vehicle as effectively as dry brakes. Drying can be improved by moving
your vehicle slowly while applying light pressure on the brake pedal.
Be cautious of sudden changes in vehicle speed or direction when you
are driving in mud. Even AWD vehicles can lose traction in slick mud. As
when you are driving over sand, apply the accelerator slowly and avoid
spinning your wheels. If the vehicle does slide, steer in the direction of
the slide until you regain control of the vehicle.
After driving through mud, clean off residue stuck to rotating driveshafts
and tires. Excess mud stuck on tires and rotating driveshafts causes an
imbalance that could damage drive components.
Note:Driving through deep water may damage the transmission.
If the front or rear axle is submerged in water, the axle lubricant and
PTU (power transfer unit) lubricant should be checked and changed if
necessary.
All-Wheel Drive219
2013 Flex(471)
Owners Guide gf, 1st Printing
USA(fus)