
372
Driving
Before Driving
Driving Preparation
Check the following items before you start driving.
• Make sure there are no obstructions on th e windows, door mirrors, exterior 
lights, or other parts of the vehicle.
u Remove any frost, snow, or ice.
u Remove any snow on the roof, as this can slip down and obstruct your field of 
vision while driving. If frozen solid , remove ice once it has softened.
u When removing ice from around the wheel s, be sure not to damage the wheel 
or wheel components.
• Make sure the hood is securely closed.
u If the hood opens while driving, your front view will be blocked.
• Make sure the tires are in good condition.
u Check air pressures, and check  for damage and excessive wear.
2Checking and Maintaining Tires  P. 501
•Make sure there are no people or ob jects behind or around the vehicle.
u There are blind spots from the inside.
• Disconnect the charging cable.
■Exterior Checks1Exterior Checks
NOTICE
When doors are frozen s hut, use warm water around 
the door edges to melt any ice. Do not try to force 
them open, as this can damage the rubber trim 
around the doors. When done, wipe dry to avoid 
further freezing.
Do not pour warm water  into the key cylinder.
You will be unable to insert the key if the water 
freezes in the hole.
Heat from the engine  and exhaust can ignite 
flammable material s left under the hood, causing a 
fire. If you’ve parked y our vehicle for an extended 
period, inspect and remove  any debris that may have 
collected, such as dried grass and leaves that have 
fallen or have been carried  in for use as a nest by a 
small animal. Also check  under the hood for leftover 
flammable materials after  you or someone else has 
performed maintenance on your vehicle.
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401
uuWhen Driving uRoad Departure Mitigation (RDM) System
Driving
■Roadway conditions
• Driving on a snowy or wet roadway (obs cured lane marking, vehicle tracks, 
reflected lights, road  spray, high contrast).
• Driving on a road with temporary lane markings.
• Faint, multiple, or varied lane markings  are visible on the roadway due to road 
repairs or old lane markings.
• The roadway has merging, split, or crossing  lines (e.g., such as at an intersection 
or crosswalk).
• The lane markings are extremel y narrow, wide, or changing.
• The vehicle in front of you is driving near the lane lines.
• The road is hilly or the vehicle is approaching the crest of a hill.
• Driving on rough or unpaved roads, or over bumpy surfaces.
• When objects on the road (curb, guard rail,  pylons, etc.) are recognized as white 
lines (or yellow lines).
• Driving on roads with double lines.
■Vehicle conditions
• Headlight lenses are dirty or the h eadlights are not properly adjusted.
• The outside of the windshield is streaked  or blocked by dirt, mud, leaves, wet 
snow, etc.
• The inside of the windshield is fogged.
• The camera temperature gets too high.
• An abnormal tire or wheel condition (wro ng sized, varied size or construction, 
improperly inflated tire, etc.).
• The vehicle is tilted due to a heavy load or  suspension modifications.
• When tire chains are installed.
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uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
408
Driving
The system may automatically shut off and the  ACC indicator will come on under 
certain conditions. Some examples of th ese conditions are listed below. Other 
conditions may reduce some of the ACC functions.
2 Front Sensor Camera  P. 396
■Environmental conditions
Driving in bad weather (r ain, fog, snow, etc.).
■Roadway conditions
Driving on a snowy or wet roadway (obscure d lane marking, vehicle tracks, reflected 
lights, road spray,  high contrast).
■Vehicle conditions
• The outside of the windshie ld is blocked by dirt, mud, leaves, wet snow, etc.
• An abnormal tire or wheel condition (Wrong sized, varied size or construction, 
improperly inflated tire, etc.).
• The camera temperature gets too high.
• The parking brake is applied.
• When the front grille is dirty.
• The vehicle is tilted due to a heav y load or suspension modifications.
• When tire chains are installed.
■ACC with LSF Conditions and Limitations1ACC with LSF Conditions and Limitations
The radar sensor for ACC with LSF is shared with the 
collision mitigation braking system
TM (CMBSTM).
2 Collision Mitigation Braking SystemTM 
(CMBSTM)  P. 442
You can read about handling information for the 
camera equipped with this system. 2 Front Sensor Camera  P. 396
Always keep the radar sensor cover clean.
Never use chemical solvents or polishing powder for 
cleaning the sensor cover.  Clean it with water or a 
mild detergent.
Do not put a sticker on the radar sensor cover or 
replace the radar sensor cover.
If you need the radar sensor to be repaired, or 
removed, or the radar se nsor cover is strongly 
impacted, turn off the system by pressing the  MAIN 
button and take your vehicl e to an authorized Honda 
Clarity Plug-In Hybrid dealer.
Have your vehicle checked  by an authorized Honda 
Clarity Plug-In Hybrid deal er if you find any unusual 
behavior of the system  (e.g., the warning message 
appears too frequently).
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424
uuWhen Driving uLane Keeping Assist System (LKAS)
Driving
■Roadway conditions
• Driving on a snowy or wet roadway (obscured lane marking, vehicle tracks, 
reflected lights, road  spray, high contrast).
• Driving on a road with temporary lane markings.
• Faint, multiple, or varied lane markings  are visible on the roadway due to road 
repairs or old lane markings.
• The roadway has merging, split, or crossing  lines (e.g., such as at an intersection 
or crosswalk).
• The lane markings are extremely narrow, wide, or changing.
• The vehicle in front of you is  driving near the lane lines.
• The road is hilly or the vehicle is approaching the crest of a hill.
• Driving on rough or unpaved roads, or over bumpy surfaces.
• When objects on the road (c urb, guard rail, pylons, etc.) are recognized as white 
lines (or yellow lines).
• Driving on roads with double lines.
■Vehicle conditions
• Headlight lenses are dirty or the  headlights are not properly adjusted.
• The outside of the windshield is streake d or blocked by dirt, mud, leaves, wet 
snow, etc.
• The inside of the windshield is fogged.
• The camera temperature gets too high.
• An abnormal tire or wheel condition (wrong sized, varied size or construction, 
improperly inflated tire, etc.).
• The vehicle is tilted due to a heav y load or suspension modifications.
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425
uuWhen Driving uVehicle Stability Assist ® (VSA ®), aka Electronic Stability Control (ESC), System
Continued
Driving
Vehicle Stability Assist ® (VSA ®), aka Electronic 
Stability Control (ESC), System
VSA ® helps to stabilize the vehicle during corn ering if the vehicle turns more or less 
than what was intended. It also assists in  maintaining traction on slippery surfaces. 
It does so by regulating engine and motor output and selectively applying the 
brakes.
When VSA® activates, you may notice that the 
engine and motor do not respond to the 
accelerator. You may also notice some noise 
from the hydraulic system. You will also see 
the indicator blink.
■VSA ® Operation
1 Vehicle Stability Assist ® (VSA ®), aka Electronic Stability Control 
(ESC), System
The VSA ® may not function properl y if tire type and 
size are mixed. Make sure to use the same size and 
type of tire, and the air pressures as specified.
When the VSA ® system indicator comes on and stays 
on while driving, there ma y be a problem with the 
system. While this may not interfere with normal 
driving, have your vehicle checked by an authorized 
Honda Clarity Plug-In Hybrid dealer  immediately.
The indicators for the Vehicle Stability Assist ® (VSA ®) 
System, Vehicle Stability Assist ® (VSA ®) OFF, low tire 
Pressure/TPMS and Collision Mitigation Braking 
System
TM (CMBSTM) may come on along with a 
message in the driver information interface after 
reconnecting the 12-volt  battery. Drive a short 
distance at more than 12 mph (20 km/h). The 
indicator should go off. If  it does not, have your 
vehicle checked by an aut horized Honda Clarity Plug-
In Hybrid dealer.
VSA ® cannot enhance stability in all driving situations 
and does not control the entire braking system. You 
still need to drive and corner at speeds appropriate 
for the conditions and alwa ys leave a sufficient 
margin of safety.
The main function of the VSA ® system is generally 
known as Electronic Stability Control (ESC). The 
system also includes a  traction control function.
VSA® System 
Indicator
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474
Maintenance
Before Performing Maintenance
Inspection and Maintenance
For your safety, perform all listed inspections and maintenance to keep your vehicle 
in good condition. If you become aware of  any abnormality (noise, smell, insufficient 
brake fluid, oil residue on the ground, etc .), have your vehicle inspected by an 
authorized Honda Clar ity Plug-In Hybrid dealer. (Note,  however, that service at an 
authorized Honda Clar ity Plug-In Hybrid dealer is not mandatory to keep your 
warranties in effect.)
■Daily inspections
Perform inspections before long distance  trips, when washing the vehicle, or when 
refueling.
■Periodic inspections
• Check the brake fluid level monthly.
2 Brake Fluid  P. 494
•Check the tire pressure monthly. Examin e the tread for wear and foreign objects.
2Checking and Maintaining Tires  P. 501
•Check the operation of the exterior lights monthly.
2 Replacing Light Bulbs  P. 496
•Check the condition of the wiper bl ades at least every six months.
2Checking and Maintaining Wiper Blades P. 498
■Types of Inspection and Maintenance
1Inspection and Maintenance
Maintenance, replacement, or repair of 
emissions control devices and systems may be 
done by any automotive repair establishment or 
individuals using parts that are “certified” to 
EPA standards.
According to state and fede ral regulations, failure to 
perform maintenance on the maintenance main 
items marked with # will  not void your emissions 
warranties. However, all ma intenance services should 
be performed in accordan ce with the intervals 
indicated by the driver  information interface.
2 Maintenance Service Items  P. 479
If you want to perform  complex maintenance tasks 
that require more skills a nd tools, you can purchase a 
subscription to the Service Express website at 
www.techinfo.honda.com .
2 Authorized Manuals  P. 577
If you want to perform ma intenance yourself, make 
sure that you have the necessary tools and skills first.
After performing ma intenance, update the records in 
the separate maintenance booklet.
U.S. models
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uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
■Maintenance Service Items1Maintenance Service Items
•Adjust the valves during services A, 0, 1, 2, or 3 if 
they are noisy.
Maintenance Minder Message
System Message 
Indicator
Sub Items
Main Item
U.S. models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset, 
change the engine oil every year.
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1 and oil filter
0●Inspect front and rear brakes●Check expiration date for Temporary Tire Repair Kit●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines  (including ABS/VSA)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
•Stay RR, RR Subframe
• Under body battery cover
*2: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and 
from diesel-powered vehicles, replace the dust and pollen filter every 15,000 miles (24,000 km).
*3: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. 
This requires transmission fluid changes more frequently than recommended by the Maintenance 
Minder. If you regularly drive your vehicle under these conditions, have the transmission fluid changed 
every 47,500 miles (75,000 km) or 3 years.
*4: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is  reset, change the brake fluid every 3 years.
*5: If you drive in dusty conditions, replace the air cleaner element every 15,000 miles (24,000 km).
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace dust and pollen filter*2
3●Replace transmission fluid*3
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*4
8●Replace air cleaner element*5
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480
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
1Maintenance Service Items
•Adjust the valves during services A, 9, 1, 2, or 3 if 
they are noisy.
Canadian models
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset, 
change the engine oil every year.
*2: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and  from diesel-powered vehicles, replace the dust and pollen filter every 24,000 km (15,000 miles).
*3: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. 
This requires transmission fluid changes more frequently than recommended by the Maintenance 
Minder. If you regularly drive your vehicle under these conditions, have the transmission fluid changed 
every 75,000 km (47,500 miles) or 3 years.
*4: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is  reset, change the brake fluid every 3 years.
*5: If you drive in dusty conditions, replace the air cleaner element every 24,000 km (15,000 miles).
# : See information on maintenance and emissions warranty.
CODEMaintenance Main Items
A
●Replace engine oil*1 and oil filter
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace dust and pollen filter*2
3●Replace transmission fluid*3
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*4
8●Replace air cleaner element*5
9●Service front and rear brakes●Check expiration date for Temporary Tire Repair Kit●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
•Stay RR, RR Subframe
• Under body battery cover
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