engine HONDA CRV 2023 Service Manual

598
Driving
Fuel Economy and CO2 Emissions
Improving Fuel Economy and Reducing CO2
Emissions
Achieving fuel economy and reducing CO2 emissions is dependent on several
factors, including driving conditions, load weight, idling time, driving habits, and
vehicle condition. Depending on these and other factors, you may not achieve the
rated fuel economy of this vehicle.
You can optimize your fuel economy with proper maintenance of your vehicle.
Always maintain your vehicle in accord ance with the messages displayed on the
driver information interface.
• Use engine oil with the viscosity recommended.
2 Recommended Engine Oil P. 613
•Maintain the specified tire pressure.
• Do not load the vehicl e with excess cargo.
• Keep your vehicle clean. A buildup of snow or mud on your vehicle's underside
adds weight and increases wind resistance.
■Maintenance and Fuel Economy
1Improving Fuel Economy and Reducing CO2 Emissions
Direct calculation is the recommended method to
determine actual fuel consumed while driving.
In Canada, posted fuel economy numbers are
established following a simulated test. For more
information on how this test is performed, please visit
https://www.nrcan.gc.ca and search for “fuel
consumption testing” in the search field at the top of
the page.
Miles driven Gallons of
fuel Miles per
Gallon
100 Liters of
fuel Kilometers
driven L per 100 km

599
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 600
Safety When Performing Maintenance ....601Parts and Fluids Used in Maintenance Service ........................................... 602
Maintenance Minder
TM..................... 603
Maintenance Under the Hood Maintenance Items Under the Hood .... 611
Opening the Hood ........................... 612
Recommended Engine Oil ................ 613
Oil Check ......................................... 614
Adding Engine Oil ............................ 615
Changing the Engine Oil and Oil Filter ...616
Cooling System ................................ 618
Transmission Fluid ............................ 620
Brake Fluid ....................................... 621
Refilling Window Wa sher Fluid......... 622
Replacing Light Bulbs ....................... 623
Checking and Maintaining Wiper
Blades .......................................... 627
Checking and Maintaining Tires
Checking Tires ................................. 631
Tire and Loading Information Label ... 632
Tire Labeling .................................... 632
DOT Tire Quality Grading (U.S. Vehicles) .... 634Wear Indicators................................ 636 Tire Service Life ................................ 636
Tire and Wheel Replacement ........... 637
Tire Rotation .................................... 638
Winter Tires ..................................... 639
12-Volt Battery ................................. 640
Remote Transmitter Care
Replacing the Remote Battery .......... 642
Climate Control System Maintenance .... 643Cleaning
Interior Care .................................... 644
Exterior Care.................................... 646
Accessories and Modifications .......... 649

601
uuBefore Performing Maintenance uSafety When Performing Maintenance
Continued
Maintenance
Safety When Performing Maintenance
Some of the most important safety pr ecautions are given here. However, we
cannot warn you of every conceivable hazard that can arise in performing
maintenance. Only you can decide whether you should perform a given task.
• To reduce the possibility of fire or explos ion, keep cigarettes, sparks, and flames
away from the 12-volt battery, all High Volt age system, and all fuel related parts.
• Never leave rags, towels, or other flammable objects under the hood.
u Heat from the engine and exhaust can ignite them, causing a fire.
• To clean parts, use a co mmercially available degreas er or parts cleaner, not
gasoline.
• Wear eye protection and protective clothing when working with the 12-volt
battery or compressed air.
• Engine exhaust contains carbon monoxide, which is poisonous and can kill you.
u Only operate the engine if th ere is sufficient ventilation.
■Maintenance Safety
1Safety When Performing Maintenance
3WARNING
Improperly maintaining this vehicle or
failing to correct a pr oblem before driving
can cause a crash in which you can be
seriously hurt or killed.
Always follow the inspection and
maintenance recommendations according
to the schedules in this owner's manual.
3WARNING
Failure to properly follow maintenance
instructions and precautions can cause you
to be seriously hurt or killed.
Always follow the procedures and
precautions in this owner's manual.

uuBefore Performing Maintenance uParts and Fluids Used in Maintenance Service
602
Maintenance
• The vehicle must be in a stationary condition.
u Make sure your vehicle is parked on leve l ground, the parking brake is set, and
the power system is turned off.
• Be aware that hot parts can burn you.
u Make sure to let the power system incl uding the engine and exhaust system
cool thoroughly before touching vehicle parts.
• Be aware that moving parts can injure you.
u Do not activate the power system unle ss instructed, and keep your hands and
limbs away from moving parts. When the power mode is on, the engine can
automatically start, or the radiator fan may start operating without the engine
running.
• Do not touch the high -voltage battery and wiring (orange).
Parts and Fluids Used in Maintenance Service
The use of Honda genuine parts and fluids is recommended when maintaining and
servicing your vehicle. Honda genuine parts are manufactured according to the
same high quality standards used in Honda vehicles.
■Vehicle Safety
1Parts and Fluids Used in Maintenance Service
NOTICE
Do not press the engine cover forcibly. This may
damage the engine cover and component parts.

603
Maintenance
Maintenance MinderTM
If the engine oil life is less than 15%, you will see the Maintenance Minder messages
appear on the driver information interfac e every time you set the power mode to
ON. The messages notify you when to change the engine oil, or when to bring your
vehicle to a dealer for indicated maintenance services.

604
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
To Use Maintenance MinderTM
Maintenance items, which should be serviced at the same time that you replace the
engine oil, appear on the driver information interface.
You can view them on the engine oil life screen at any time.
1. Set the power mode to ON.
2. Press the (home) button.
3. Roll the left selector wheel until is displayed.
4. Press the left selector wheel to go to the Maintenance Minder screen. The engine
oil life appears on the driver information interface along with maintenance items
due soon.
■Displaying the Maintenance Minder Information1 Displaying the Maintena nce Minder Information
Based on the engine ope rating conditions, the
remaining engine oi l life is calculated and displayed
as a percentage.
There is a list of maintena nce main and sub items you
can view on the driver information interface.
2 Maintenance Service Items P. 607
Displayed Engine Oil
Life (%)Calculated Engine Oil Life (%)
100 100 to 91
9090 to 81
80 80 to 71
7070 to 61
60 60 to 51
5050 to 41
40 40 to 31
3030 to 21
20 20 to 16
1515 to 11
10 10 to 6
55 to 1
0 0
(Home) Button
Engine Oil Life
Main Item Sub Item
Left Selector Wheel

605
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
■Maintenance Minder Messages on the Driver Information
Interface
Maintenance MessageOil Life DisplayExplanationInformation
-
When you select the Maintenance Minder
screen, it displays codes for maintenance
items due at the next engine oil change,
along with the percentage of engine oil life
remaining.
-
Maintenance Due Soon15 %The remaining engine oil life is 15 to 6
percent.
Press the (home) button to switch to
another display.The engine oil is approaching
the end of its service life, and
the maintenance items should
be inspected and serviced
soon.

606
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
The system message indicator ( ) comes on along with the Maintenance Minder
message.
Maintenance MessageOil Life DisplayExplanationInformation
Maintenance Due Now5 %The remaining engine oil life is 5 to 1
percent.
Press the (home) button to switch to
another display.The engine oil has almost
reached the end of its service
life, and the maintenance items
should be inspected and
serviced as soon as possible.
Maintenance Past DueNegative DistanceThe engine oil life has passed its service life,
and a negative distance appears after
driving over 10 miles (U.S. models) or 10 km
(Canadian models). The negative distance
on the display blinks.
Press the (home) button to switch to
another display.The engine oil life has passed.
The maintenance items must
be inspected and serviced
immediately.

608
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
U.S. models
· Adjust the valves during services A, B, 1, 2, or 3 if they are noisy.
*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 in the first column on page 701.
CODEMaintenance Main Items
A
●Replace engine oil*1
B●Replace engine oil*1 and oil filter●Inspect front and rear brakes●Check expiration date for temporary tire repair kit
bottle
●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#
*2: If you drive in dusty conditions, replace the air cleaner element every 15,000 miles (24,000 km).
*3: 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).
*4: 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 (76,000 km) or 3 years.
*5: 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.
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element*2
●Replace dust and pollen filter*3
3●Replace transmission fluid*4
4●Replace spark plugs
5
●Replace engine coolant
6●Replace rear differential fluid*
7●Replace brake fluid*5
* Not available on all models

609
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Continued
Maintenance
Canadian models
· Adjust the valves during services A, 0, 9, 1, 2, or 3 if they are noisy.
*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 in dusty conditions, replace the air cleaner element every 24,000 km (15,000 miles).
*3: 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).
*4: 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 76,000 km (47,500 miles) or 3 years.
*5: 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.
# : See information on maintenance and emissions warranty in the first column on page 701.
CODEMaintenance Main Items
A
●Replace engine oil*1
0●Replace engine oil*1 and oil filter
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element*2
●Replace dust and pollen filter*3
3●Replace transmission fluid*4
4●Replace spark plugs
5
●Replace engine coolant
6●Replace rear differential fluid
7
●Replace brake fluid*5
9●Service front and rear brakes●Check expiration date for temporary tire repair kit
bottle
●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#