2011 Honda Pilot Owners Manual

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). Towing 531 on page If you do not find an obvious leak, check the coolant level in the radiator reserve tank. Add coolant if the level is below the MIN mark. If there was no coolant in the reserve tank, you may need to add coolant to the radiator. Let the engine cool down until the pointer reaches the middle of the tempera- ture gauge, or lower, before check- ing the radiator. 520 Removing the radiator cap while the engine is hot can cause the coolant to spray out, seriously scalding you. Always let the engine and radiator cool down before removing the radiator cap. 8. Using gloves or a large heavy cloth, turn the radiator cap counterclockwise, without pushing down, to the first stop. After the pressure releases, push down on the cap, and turn it until it comes off. 9. ’’). Add coolant to the Start the engine, and set the temperature to maximum heat (climate control to AUTO at ‘‘ radiator up to the base of the filler neck. If you do not have the proper coolant mixture available, you can add plain water. Remember to have the cooling system drained and refilled with the proper mixture as soon as you can. 10. Put the radiator cap back on tightly. Run the engine, and check the temperature gauge. If it goes back to the red mark, the engine needs repair (see Towing on page Emergency 531 ). 11. If the temperature stays normal, check the coolant level in the radiator reserve tank. If it has gone down, add coolant to the MAX mark. Put the cap back on tightly. 2011 Pilot 10/01/26 19:53:28 31SZA620_526 Low Oil Pressure Indicator This indicator should never come on when the engine is running. If it starts flashing or stays on, the oil pressure has dropped very low or lost pressure. Serious engine damage is possible, and you should take immediate action. Onvehicleswithnavigationsystem You will also see a ‘‘CHECK ENGINE OIL LEVEL’’ message on the multi-information display when this indicator comes on. 1. 2. 3. 4. Running the engine with low oil pressure can cause serious mechanical damage almost immediately. Turn of f the engine as soon as you can saf ely get the vehicle stopped. Low Oil Pressure Indicator, Charging System Indicator Safely pull off the road, and shut off the engine. Turn on the hazard warning indicators. Let the vehicle sit for a minute. Open the hood, and check the oil level (see page ). An engine very low on oil can lose pressure during cornering and other driving maneuvers. 398 If necessary, add oil to bring the level back to the full mark on the dipstick (see page 472 ). Start the engine, and watch the oil pressure indicator. If it does not go out within 10 seconds, turn off the engine. There is a mechanical problem that needs to be repaired before you can continue driving (see 531 Emergency Towing ). on page Charging System Indicator If the charging system indicator comes on brightly when the engine is running, the battery is not being charged. Onvehicleswithnavigationsystem You will also see a ‘‘CHECK CHARGING SYSTEM’’ message on the multi-information display (see page 95 ). Immediately turn off all electrical accessories. Try not to use other electrically operated controls such as the power windows. Keep the engine running; starting the engine will discharge the battery rapidly. Go to a service station or garage where you can get technical assistance. 521 2011 Pilot 10/01/26 19:53:39 31SZA620_527 Malfunction Indicator Lamp If this indicator comes on while driving, it means one of the engine’s emissions control systems may have a problem. Even though you may feel no difference in your vehicle’s performance, it can reduce your fuel economy and cause increased emissions. Continued operation may cause serious damage. If you have recently refueled your vehicle, the indicator coming on could be due to a loose or missing fuel fill cap. Tighten the cap until it clicks at least once. Tightening the cap will not turn the indicator off immediately; it can take several days of normal driving. If the indicator comes on repeatedly, even though it may turn off as you continue driving, have your vehicle checked by the dealer as soon as possible. 522 If the battery in your vehicle has been disconnected or gone dead, these codes may be erased. It takes several days of driving under various conditions to set the codes again. To check if they are set, turn the ignition switch to the ON (II) position, without starting the engine. The malfunction indicator lamp will come on for 20 seconds. If it then goes off, the readiness codes are set. If it blinks five times, the readiness codes are not set. If possible, do not take your vehicle for an emissions test until the readiness codes are set. Emissions Testing Refer to more information (see page for 550 ). If you keep driving with the malf unction indicator lamp on, you can damage your vehicle’s emissions controls and engine. Those repairs may not be covered by your vehicle’s warranties. Onvehicleswithnavigationsystem You will also see a ‘‘CHECK EMISSION SYSTEM’’ message on the multi-information display (see page 95 ). Readiness Code Your vehicle has certain ‘‘readiness codes’’ that are part of the on-board diagnostics for the emissions systems. In some states, part of the emissions testing is to make sure these codes are set. If they are not set, the test cannot be completed. 2011 Pilot 10/01/26 19:53:51 31SZA620_528 Brake System Indicator U.S. Canada The brake system indicator normally comes on when you turn the ignition switch to the ON (II) position, and as a reminder to check the parking brake. It will stay on if you do not fully release the parking brake. If the brake system indicator comes on while driving, the brake fluid level is probably low. Press lightly on the brake pedal to see if it feels normal. If it does, check the brake fluid level the next time you stop at a service station (see page 481 ). Onvehicleswithnavigationsystem You will also see a ‘‘LOW BRAKE FLUID’’ message on the multi- information display (see page 95 ). If the fluid level is low, take your vehicle to a dealer, and have the brake system inspected for leaks or worn brake pads. However, if the brake pedal does not feel normal, you should take immediate action. A problem in one part of the system’s dual circuit design will still give you braking at two wheels. You will feel the brake pedal go down much farther before the vehicle begins to slow down, and you will have to press harder on the pedal. Onvehicleswithnavigationsystem You will also see a ‘‘CHECK BRAKE SYSTEM’’ message on the multi- 95 information display (see page ). Slow down by shifting to a lower gear, and pull to the side of the road when it is safe. Because of the long distance needed to stop, it is hazardous to drive the vehicle. You should have it towed, and repaired as soon as possible (see Towing 531 Emergency ). on page If you must drive the vehicle a short distance in this condition, drive slowly and carefully. If the ABS indicator and the VSA system indicator come on with the brake system indicator, have your vehicle inspected by your dealer immediately. 523 2011 Pilot 10/01/26 19:54:02 31SZA620_529 Fuses REAR LID UNDER-HOOD (PRIMARY) TAB The vehicle’s fuses are located in four fuse boxes. The rear fuse box is located at the left side of cargo area. The interior fuse box is underneath the dashboard on the driver’s side. The primary under-hood fuse box is located on the passenger’s side. The secondary fuse box is located next to the battery. To open it, push the tabs as shown. UNDER-HOOD (SECONDARY) TAB 524 2011 Pilot 10/01/26 19:54:12 31SZA620_530 Checking and Replacing Fuses If something electrical in your vehicle stops working, the first thing you should check for is a blown fuse. Determine from the chart on pages , or the diagram 528 529 on the fuse box lid, which fuse or fuses control that device. Check those fuses first, but check all the fuses before deciding that a blown fuse is the cause. Replace any blown fuses, and check if the device works. , and 530 FUSE BLOWN BLOWN 1. Turn the ignition switch to the LOCK (0) position. Make sure the headlights and all other accessories are off. 2. Remove the cover from the fuse box. 3. Check each of the large fuses in the under-hood fuse boxes by looking through the top at the wire inside. Removing these fuses requires a Phillips-head screwdriver. Fuses CONTINUED 525 2011 Pilot 10/01/26 19:54:19 31SZA620_531 Fuses BLOWN 4. FUSE PULLER Check the smaller fuses in the under-hood fuse boxes and rear fuse box, and all the fuses in the interior and rear fuse boxes by pulling out each one with the fuse puller provided in the primary under-hood fuse box. 5. Look for a burned wire inside the fuse. If it is burned out, replace it with one of the spare fuses of the same rating or lower. 526 If you cannot drive the vehicle without fixing the problem, and you do not have a spare fuse, take a fuse of the same rating or a lower rating from one of the other circuits. Make sure you can do without that circuit temporarily (such as the accessory power socket or radio). If you replace the blown fuse with a spare fuse that has a lower rating, it might blow out again. This does not indicate that anything is wrong. Replace the fuse with one of the correct rating as soon as you can. 2011 Pilot 10/01/26 19:54:25 31SZA620_532 Replacing a f use with one that has a higher rating greatly increases the chances of damaging the electrical system. If you do not have a replacement f use with the proper rating f or the circuit, install one with a lower rating. 6. If the replacement fuse of the same rating blows in a short time, there is probably a serious electrical problem with your vehicle. Leave the blown fuse in that circuit, and have your vehicle checked by a qualified technician. If the radio fuse is removed, the audio system will disable itself. The next time you turn on the radio you will see ‘‘ENTER CODE’’ in the frequency display. Use the preset buttons to enter the digit code (see page 313 ) . Fuses 527 2011 Pilot 10/01/26 19:54:34 31SZA620_533 Fuse Locations PRIMARY UNDER-HOOD FUSE BOX 528 No. Amps. Circuits Protected No. Amps. Circuits Protected 10 11 12 120 A − 80 A 50 A − − 50 A 40 A − 30 A 30 A 30 A 40 A 20 A 15 A 10 A Main Fuse Not Used OP Main IG Main Not Used Not Used Head Light Main Power Window Main Not Used Condenser Fan Cooling Fan Rear Defroster Blower Front Fog Light Sub ACM 13 14 15 16 17 18 19 20 21 22 23 20 A 20 A 7.5 A 20 A 20 A 15 A 15 A 7.5 A 15 A 10 A 10 A Front Passenger’s Power Seat Reclining Front Passenger’s Power Seat Slide Oil Level Head Light Hi Main Radio IG Coil Main MG Clutch DBW Interior Light Back Up 2011 Pilot 10/01/26 19:54:45 31SZA620_534 SECONDARY UNDER-HOOD FUSE BOX No. Amps. Circuits Protected REAR FUSE BOX Fuse Locations 10 11 12 13 14 15 16 17 18 19 20 21 22 30 A 30 A 15 A 20 A 20 A 20 A 20 A 15 A 10 A 20 A 20 A 15 A 20 A 15 A 15 A 20 A 15 A 30 A Rear Blower VSA Motor Hazard Power Tailgate Closer Driver’s Power Seat Reclining Driver’s Power Seat Slide Stop & Horn Rear Console Accessory Socket Rear Wiper Trailer E-Brake A/C Inverter Center Console Accessory Socket Trailer Charge Front Accessory Socket Rear Accessory Socket Glass Hatch Motor Rear Heated Seat Head Light Washer Motor No. Amps. Circuits Protected 40 A 20 A 30 A 40 A Power Tailgate Motor VTM-4 Trailer Main VSA FSR No. Amps. Circuits Protected 20 A 7.5 A 7.5 A 7.5 A Small Light Stop Lamp Back Lamp Turn Lamp, Hazard 529 2011 Pilot 10/01/26 19:54:55 31SZA620_535 Fuse Locations INTERIOR FUSE BOX No. Amps. Circuits Protected 7.5 A 15 A 10 A 7.5 A 15 A VTM-4 Fuel Pump ACG VSA Heated Seat 530 No. Amps. Circuits Protected No. Amps. Circuits Protected 10 11 12 13 14 15 16 17 18 19 20 21 − 10 A 7.5 A 7.5 A 7.5 A 10 A 10 A 10 A 7.5 A 10 A 15 A 15 A 20 A 15 A − 7.5 A 20 A Not Used Auto Light Auto Light ODS Meter SRS Right Daytime Running Light Left Daytime Running Light Small Lights (Interior) Small Lights (Exterior) Right Head Light Low Left Head Light Low Daytime Running Light Main Small Lights Main Not Used TPMS Head Light Low Main 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 7.5 A 7.5 A − − 20 A 20 A 20 A 20 A 20 A 30 A 20 A 20 A − 10 A 10 A 7.5 A 30 A VBSOL2 STRLD Not Used Not Used Driver’s Power Window HAC OP Moonroof Door Lock Front Passenger’s Power Window Audio Amp Passenger’s Side Rear Power Window Driver’s Side Rear Power Window Not Used ACC HAC Day Light Wiper ＊ ＊ : On vehicles with rear entertainment system 2011 Pilot 10/01/26 19:55:01 31SZA620_536 If your vehicle needs to be towed, call a professional towing service or organization. Never tow your vehicle with just a rope or chain. It is very dangerous. The only way you can safely tow your vehicle is with flat-bed equipment. The operator will load your vehicle on the back of a truck. Any other method of towing will damage the drive system. When you contact the towing agency, inform them a flat-bed is required. Emergency Towing 4WDmodelsonly Towing with only two tires on the ground will damage parts of the 4WD system. It should be transported on a f lat-bed truck or trailer. 531 2011 Pilot 10/01/26 19:55:10 31SZA620_537 If Your Vehicle Gets Stuck If your vehicle gets stuck in sand, mud, or snow, call a towing service to pull it out (see the previous page). For very short distances, such as freeing the vehicle, you can use the detachable towing hook that mounts on the anchors in the front and rear bumpers. 532 Front COVER WHEEL NUT WRENCH 1. Remove the cover, put cloth on the edge of the cover to prevent scratches and carefully pry with a small flat-tip screwdriver or a metal fingernail file. 2. 3. The cover is attached to the bumper with a tether. TOWING HOOK Remove the towing hook and wheel nut wrench placed behind a cover under the cargo area. Screw the towing hook into the hole, and tighten it with the wheel nut wrench. 2011 Pilot 10/01/26 19:55:15 31SZA620_538 Rear TRAILER HITCH If Your Vehicle Gets Stuck To avoid damage to your vehicle, use the towing hook f or straight, f lat ground towing only. Do not tow at an angle. The tow hook should not be used to tow the vehicle onto a f lat bed. Do not use it as a tie down. 533 2011 Pilot 10/01/26 19:55:17 31SZA620_539 534 2011 Pilot 10/01/26 19:55:22 31SZA620_540 Technical Information The diagrams in this section give you the dimensions and capacities of your vehicle and the locations of the identification numbers. It also includes information you should know about your vehicle’s tires and emissions control systems. Identification Numbers Specifications DOT Tire Quality Grading ................ ................................ (U.S. Vehicles) .......................... Tire Labeling ................................. Tire Pressure Monitoring System . 536 . 538 . 540 . 542 − (TPMS) Explanation Required Federal . 544 ............................ Emissions Controls ....................... . 547 .. Three Way Catalytic Converter . 549 ........................ . 550 Emissions Testing 535 2011 Pilot 10/01/26 19:55:28 31SZA620_541 Identification Numbers Your vehicle has several identifying numbers located in various places. The vehicle identification number (VIN) is the 17-digit number your dealer uses to register your vehicle for warranty purposes. It is also necessary for licensing and insuring your vehicle. The easiest place to find the VIN is on a plate fastened to the top of the dashboard. You can see it by looking through the windshield on the driver’s side. It is also on the certification label attached to the driver’s doorjamb, and is stamped on the engine compartment bulkhead. The VIN is also provided in bar code on the certification label. 536 VEHICLE IDENTIFICATION NUMBER (VIN) CERTIFICATION LABEL 2011 Pilot 10/01/26 19:55:33 31SZA620_542 The engine number is stamped into the engine block. It is on the front. The transmission number is on a label on top of the transmission. ENGINE NUMBER Identification Numbers AUTOMATIC TRANSMISSION NUMBER 537 2011 Pilot 10/01/26 19:55:55 31SZA620_543 Specifications Dimensions Length Width Height Wheelbase Track Front Rear ＊ 190.9 in (4,850 mm) 78.5 in (1,995 mm) 70.9 in (1,802 mm) 72.7 in (1,846 mm) ＊ 109.3 in (2,775 mm) 67.7 in (1,720 mm) 67.5 in (1,715 mm) ＊ 1 : U.S. LX models ＊ 2 : Except U.S. LX models Weights Gross vehicle weight rating Gross combined weight rating (GCWR) ＊ See the tire information label atta- ched to the driver’s doorjamb. 8,466 lbs (3,840 kg) ＊ 9,579 lbs (4,345 kg) ＊ ＊ 1 : ＊ 2 : The GCWR must be reduced 2 percent for every 1,000 feet (305 meters) of elevation. 2WD models 3 : 4WD models ＊ Capacities Fuel tank Engine coolant Engine oil Automatic transmission fluid 2WD 4WD Rear differential fluid (4WD) Transfer assembly fluid (4WD) Windshield washer reservoir Change ＊ Total Change ＊ Including filter Without filter Total Change Total Change Total Change Total Change Total Approx. 21.00 US gal (79.5 ) 1.98 US gal (7.5 ) 2.48 US gal (9.4 ) 4.5 US qt (4.3 ) 4.2 US qt (4.0 ) 5.3 US qt (5.0 ) 3.6 US qt (3.4 ) 8.6 US qt (8.1 ) 3.6 US qt (3.4 ) 8.6 US qt (8.1 ) 2.79 US qt (2.64 ) 3.01 US qt (2.85 ) 0.45 US qt (0.43 ) 0.48 US qt (0.45 ) 4.2 US qt (4.0 ) 6.9 US qt (6.5 ) Air Conditioning Refrigerant type Charge quantity Lubricant type Seating Capacities Total Front Second Third 538 HFC-134a (R-134a) − 21.2 22.9 oz (600 650 g) − U.S. vehicles Canadian vehicles ND-OIL8 ＊ 1 : ＊ 2 : Including the coolant in the reserve tank and that remaining in the engine Reserve tank capacity: 0.196 US gal (0.74 ) Excluding the oil remaining in the engine 2011 Pilot 10/01/26 19:56:25 31SZA620_544 Lights Headlights ＊ Daytime running lights Front side marker lights Front turn signal/ parking lights Front fog lights Rear turn signal/taillights Stop/taillights Rear side marker lights Back-up lights License plate lights Individual map lights Cargo area lights High-mount brake lights Vanity mirror lights Door courtesy lights High Low Front Rear ＊ Except LX models Battery Capacity 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V − − − − − − − − − − − − − − − − − (HB3) (H11) (HB3) 60 W 55 W 60 W 3 CP 28/8 W (H11) 55 W 21/5 W 21/5 W 5 W 18 W 5 W 8 W 4 CP 8 W 5 W 1.4 W 2 CP 12 V 12 V − − 60 AH/5 HR 72 AH/20 HR Fuses Interior Rear Under-hood Engine Type Bore x Stroke Displacement Compression ratio Spark plugs Specifications See page 530 or the fuse label attached on the side panel. See page 529 or the fuse label attached to the inside of the fuse box lid. See page 528 and 529 or the fuse box cover. Water cooled 4-stroke SOHC i-VTEC VCM 6-cylinder (V6) gasoline engine 3.50 x 3.66 in (89.0 x 93.0 mm) 212 cu-in (3,471 cm ) 10.5 : 1 DENSO: NGK: SXU22HCR11 ILZKR7B11 Alignment Toe-in Camber Caster Tires Size Pressure Front Rear Front Rear Front 0.00 in (0.0 mm) 0.08 in (2.0 mm) 0°30’ − 0°30’ − 4°12’ Front/Rear Spare Front/Rear Spare P245/65R17 105T T165/80D17 104M 32 psi (220 kPa , 2.2 kgf/cm ) 60 psi (420 kPa , 4.2 kgf/cm ) 539 2011 Pilot 10/01/26 19:56:35 31SZA620_545 DOT Tire Quality Grading (U.S. Vehicles) Treadwear The treadwear grade is a compara- tive rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and one- half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual condi- tions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate. Traction The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics. The tires on your vehicle meet all U.S. Federal Safety Requirements. All tires are also graded for treadwear, traction, and temperature performance according to Department of Transportation (DOT) standards. The following explains these gradings. Uniform Tire Quality Grading Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A All passenger car tires must conform to Federal Safety Requirements in addition to these grades. 540 2011 Pilot 10/01/26 19:56:41 31SZA620_546 Temperature The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. DOT Tire Quality Grading (U.S. Vehicles) Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure. 541 2011 Pilot 10/01/26 19:56:57 31SZA620_547 Tire Labeling The tires that came on your vehicle have a number of markings. Those you should be aware of are described below. TIRE LABELING EXAMPLE (1) TireSize Whenever tires are replaced, they should be replaced with tires of the same size. The following is an example of tire size with an explanation of what each component means. 105 − Load index (a numerical code associated with the maximum load the tire can carry). − Speed symbol (an alphabetical code indicating the maximum speed rating). P245/65R17 105T − Vehicle type (P indicates passenger vehicle). 245 − Tire width in millimeters. 65 − Aspect ratio (the tire’s section height as a percentage of its width). − Tire construction code (R indicates radial). 17 − Rim diameter in inches. TireIdentificationNumber(TIN) The tire identification number (TIN) is a group of numbers and letters that look like the following example. TIN is located on the sidewall of the tire. DOT B97R FW6X 2202 DOT − This indicates that the tire meets all requirements of the U.S. Department of Transportation. B97R − Manufacturer’s identification mark. (1) (4) (3) (2) (1) (2) (3) (4) Tire Size Tire Identification Number (TIN) Maximum Tire Pressure Maximum Tire Load 542 2011 Pilot 10/01/26 19:57:08 31SZA620_548 FW6X − Tire type code. Glossary of Tire Terminology 2202 − Date of manufacture. Year Week − Cold Tire Pressure pressure when the vehicle has been parked for at least three hours or driven less than 1 mile (1.6 km). The tire air − Load Rating Means the maximum load that a tire is rated to carry for a given inflation pressure. Maximum Inflation Pressure The maximum tire air pressure that the tire can hold. − Tire Labeling Maximum Load Rating Means the load rating for a tire at the maximum permissible inflation pressure for that tire. − Recommended Inflation Pressure The cold tire inflation pressure recommended by the manufacturer. − Treadwear Indicators (TWI) − Means the projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread. 543 2011 Pilot 10/01/26 19:57:16 31SZA620_549 Tire Pressure Monitoring System (TPMS) − Required Federal Explanation Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under inflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. 544 2011 Pilot 10/01/26 19:57:24 31SZA620_550 Tire Pressure Monitoring System (TPMS) − Required Federal Explanation Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. Onvehicleswithoutnavigationsystem Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is provided by a separate telltale, which displays the symbol ‘‘TPMS’’ when illuminated. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. 545 2011 Pilot 10/01/26 19:57:31 31SZA620_551 Tire Pressure Monitoring System (TPMS) − Required Federal Explanation Onvehicleswithnavigationsystem Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. 546 2011 Pilot 10/01/26 19:57:41 31SZA620_552 The burning of gasoline in your vehicle’s engine produces several by- products. Some of these are carbon monoxide (CO), oxides of nitrogen (NOx), and hydrocarbons (HC). Gasoline evaporating from the tank also produces hydrocarbons. Con- trolling the production of NOx, CO, and HC is important to the environ- ment. Under certain conditions of sunlight and climate, NOx and HC react to form photochemical ‘‘smog.’’ Carbon monoxide does not contri- bute to smog creation, but it is a poisonous gas. ＊ The Clean Air Act The United States Clean Air Act sets standards for automobile emissions. It also requires that automobile manufacturers explain to owners how their emissions controls work and what to do to maintain them. This section summarizes how the emissions controls work. Scheduled maintenance is on page 469 ＊ In Canada, Honda vehicles comply with the Canadian emission requirements, as specified in an agreement with Environment Canada, at the time they are manufactured. Crankcase Emissions Control System Your vehicle has a positive crankcase ventilation system. This keeps gasses that build up in the engine’s crankcase from going into the atmosphere. The positive Emissions Controls crankcase ventilation valve routes them from the crankcase back to the intake manifold. They are then drawn into the engine and burned. Evaporative Emissions Control System As gasoline evaporates in the fuel tank, an evaporative emissions control canister filled with charcoal adsorbs the vapor. It is stored in this canister while the engine is off. After the engine is started and warmed up, the vapor is drawn into the engine and burned during driving. Onboard Refueling Vapor Recovery The onboard refueling vapor recovery (ORVR) system captures the fuel vapors during refueling. The vapors are adsorbed in a canister filled with activated carbon. While driving, the fuel vapors are drawn into the engine and burned off. 547 2011 Pilot 10/01/26 19:57:54 31SZA620_553 Emissions Controls Exhaust Emissions Controls The exhaust emissions controls include four systems: PGM-FI, ignition timing control, exhaust gas recirculation, and three way catalytic converter. These four systems work together to control the engine’s combustion and minimize the amount of HC, CO, and NOx that come out the tailpipe. The exhaust emissions control systems are separate from the crankcase and evaporative emissions control systems. PGM-FISystem The PGM-FI system uses sequential multiport fuel injection. It has three subsystems: air intake, engine control, and fuel control. The powertrain control module (PCM) uses various sensors to determine how much air is going into the engine. It then controls how much fuel to inject under all operating conditions. 548 IgnitionTimingControlSystem This system constantly adjusts the ignition timing, reducing the amount of HC, CO, and NOx produced. ExhaustGasRecirculation(EGR) System The exhaust gas recirculation (EGR) system takes some of the exhaust gas and routes it back into the intake manifold. Adding exhaust gas to the air/fuel mixture reduces the amount of NOx produced when the fuel is burned. ThreeWayCatalyticConverter The three way catalytic converter is in the exhaust system. Through chemical reactions, it converts HC, CO, and NOx in the engine’s exhaust to carbon dioxide (CO ), nitrogen (N ), and water vapor. Replacement Parts The emissions control systems are designed and certified to work to- gether in reducing emissions to levels that comply with the Clean Air Act. To make sure the emissions remain low, you should use only new Honda replacement parts or their equivalent for repairs. Using lower quality parts may increase the emissions from your vehicle. The emissions control systems are covered by warranties separate from the rest of your vehicle. Read your warranty manual for more informa- tion. 2011 Pilot 10/01/26 19:58:04 31SZA620_554 The three way catalytic converter contains precious metals that serve as catalysts, promoting chemical reactions to convert the exhaust gasses without affecting the metals. The catalytic converter is referred to as a three-way catalyst, since it acts on HC, CO, and NOx. A replacement unit must be an original Honda part or its equivalent. The three way catalytic converter must operate at a high temperature for the chemical reactions to take place. It can set on fire any combustible materials that come near it. Park your vehicle away from high grass, dry leaves, or other flammables. Three Way Catalytic Converter THREE WAY CATALYTIC CONVERTER A defective three way catalytic converter contributes to air pollution, and can impair your engine’s per- formance. Follow these guidelines to protect your vehicle’s three way catalytic converter. Always use unleaded gasoline. Even a small amount of leaded gasoline can contaminate the catalyst metals, making the three way catalytic converter ineffective. WARM UP THREE WAY CATALYTIC CONVERTERS Keep the engine well maintained. Have your vehicle diagnosed and repaired if it is misfiring, back- firing, stalling, or otherwise not running properly.

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2011 Honda Pilot Owners Manual