2008 Acura TSX Owners Manual

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17.

Secure the flat tire by screwing the wing bolt back into its hole.

18.

Store the jack and tools in the tool tray, and place the tool tray back in the trunk.

Loose items can fly around the interior in a crash and could seriously injure the occupants.

Store the wheel, jack, and tools securely before driving.

Changing a Flat Tire

WING BOLT

For normal tire

For compact spare tire

SPACER CONE

14.

Remove the center cap before storing the flat tire in the trunk well.

15.

Place the flat tire face down in the spare tire well.

16.

Remove the spacer cone from the wing bolt, turn it over, and put it back on the bolt.

328

19.

Store the wheel cover or center cap in the trunk. Make sure it does not get scratched or damaged. Lower the trunk floor, then close the trunk lid.

20.

Your vehicle’s original tire has a tire pressure monitoring system sensor. To replace a tire, refer to Changing a Tire with TPMS page

266

).

(see

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If the Engine Won’t Start

Diagnosing why the engine won’t start falls into two areas, depending on what you hear when you turn the ignition switch to the START (III) position:

You hear nothing, or almost nothing. The engine’s starter motor does not operate at all, or operates very slowly.

You can hear the starter motor operating normally, or the starter motor sounds like it is spinning faster than normal, but the engine does not start up and run.

Nothing Happens or the Starter Motor Operates Very Slowly When you turn the ignition switch to the START (III) position, you do not hear the normal noise of the engine trying to start. You may hear a clicking sound, a series of clicks, or nothing at all.

Check these things:

Check the transmission interlock. If you have a manual transmission, the clutch pedal must be pushed all the way to the floor or the starter will not operate. With an automatic transmission, it must be in Park or neutral.

Turn the ignition switch to the ON (II) position. Turn on the headlights, and check their brightness. If the headlights are very dim or do not come on at all, the battery is discharged. See Jump Starting

on page

331

Turn the ignition switch to the START (III) position. If the headlights do not dim, check the condition of the fuses. If the fuses are OK, there is probably something wrong with the electrical circuit for the ignition switch or starter motor. You will need a qualified technician to determine the problem. See Emergency Towing

on page

345

If the headlights dim noticeably or go out when you try to start the engine, either the battery is discharged or the connections are corroded. Check the condition of the battery and terminal connections (see page ). You can then try jump starting the vehicle from a booster battery (see page ).

320

331

329

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Do you have fuel? Check the fuel gauge; the low fuel indicator may not be working.

There may be an electrical problem, such as no power to the fuel pump. Check all the fuses (see page

340

).

If you find nothing wrong, you will need a qualified technician to find the problem. See Towing on page

Emergency 345

If the Engine Won’t Start

The Starter Operates Normally In this case, the starter motor’s speed sounds normal, or even faster than normal, when you turn the ignition switch to the START (III) position, but the engine does not run.

Are you using a properly coded key? An improperly coded key will cause the immobilizer system indicator in the instrument panel to blink rapidly (see page ).

127

Are you using the proper starting Starting the procedure? Refer to Engine 249

on page

330

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Although this seems like a simple procedure, you should take several precautions.

A battery can explode if you do not follow the correct procedure, seriously injuring anyone nearby.

Keep all sparks, open flames, and smoking materials away from the battery.

You cannot start your vehicle with an automatic transmission by pushing or pulling it.

To jump start your vehicle:

1.

Open the hood, and check the physical condition of the battery. In very cold weather, check the condition of the electrolyte. If it seems slushy or frozen, do not try jump starting until it thaws.

If a battery sits in extreme cold, the electrolyte inside can f reeze. Attempting to jump start with a f rozen battery can cause it to rupture.

2.

Turn off all the electrical accessories: climate control, audio system, lights, etc. Put the transmission in neutral (manual) or Park (automatic), and set the parking brake.

Jump Starting

BOOSTER BATTERY

The numbers in the illustration show the order to connect the jumper cable.

3.

＋

) terminal on your

Connect one jumper cable to the positive ( battery. Connect the other end to the positive ( ) terminal on the ＋ booster battery.

CONTINUED

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Jump Starting

5.

6.

If the booster battery is in another vehicle, have an assistant start that vehicle and run it at a fast idle.

Start the vehicle. If the starter motor still operates slowly, check that the jumper cables have good metal-to-metal contact.

7.

Once your vehicle is running, disconnect the negative cable from your vehicle, then from the booster battery. Disconnect the positive cable from your vehicle, then from the booster battery.

Keep the ends of the jumper cables away from each other and any metal on the vehicle until everything is disconnected. Otherwise, you may cause an electrical short.

4.

−

Connect the second jumper cable to the negative ( ) terminal on the booster battery. Connect the other end to the grounding point as shown. Do not connect this jumper cable to any other part of the engine.

332

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The reading of the vehicle’s temperature gauge should stay in the midrange. If it climbs to the red mark, you should determine the reason (hot day, driving up a steep hill, etc.).

If your vehicle overheats, you should take immediate action. The only indication may be the temperature gauge climbing to or above the red mark. Or you may see steam or spray coming from under the hood.

Driving with the temperature gauge pointer at the red mark can cause serious damage to the engine.

Steam and spray from an overheated engine can seriously scald you.

Do not open the hood if steam is coming out.

1.

Safely pull to the side of the road. Put the transmission in neutral (manual) or Park (automatic), and set the parking brake. Turn off all accessories, and turn on the hazard warning indicators.

2.

If you see steam and/or spray coming from under the hood, turn off the engine. Wait until you see no more signs of steam or spray, then open the hood.

If the Engine Overheats

3.

If you do not see steam or spray, leave the engine running and watch the temperature gauge. If the high heat is due to overloading, the engine should start to cool down almost immediately. If it does, wait until the temperature gauge comes down to the midpoint, then continue driving.

4.

If the temperature gauge stays at the red mark, turn off the engine.

5.

Look for any obvious coolant leaks, such as a split radiator hose. Everything is still extremely hot, so use caution. If you find a leak, it must be repaired before you Emergency continue driving (see Towing ). 345

on page

CONTINUED

333

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If the Engine Overheats

6.

7.

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 temperature gauge or lower before checking the radiator.

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.

334

8.

9.

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.

’’). 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 345

).

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.

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Low Oil Pressure Indicator

This indicator should never come on when the engine is running. If it starts flashing or stays on, or if you see a ‘‘CHECK ENGINE OIL LEVEL’’ message on the multi- information display, the oil pressure has dropped very low or lost pressure. Serious engine damage is possible, and you should take immediate action.

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.

1.

2.

3.

4.

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.

236

If necessary, add oil to bring the level back to the full mark on the dipstick (see page

291

).

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 345

Emergency Towing ).

on page

335

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Charging System Indicator, Malfunction Indicator Lamp

Charging System Indicator

If the charging system indicator comes on brightly when the engine is running, or if you see a ‘‘CHECK CHARGING SYSTEM’’ message on the multi-information display, the battery is not being charged.

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.

Malfunction Indicator Lamp

If this indicator comes on while driving, or if you see a ‘‘CHECK EMISSION SYSTEM’’ message on the multi-information display, 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 could come on because of a loose or missing fuel fill cap. You will also see a ‘‘TIGHTEN FUEL CAP’’ message on the information display. 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 your dealer as soon as possible.

336

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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.

If your vehicle has an automatic transmission, the malfunction indicator lamp may also come on with the ‘‘D’’ indicator.

You will also see a ‘‘CHECK EMISSION SYSTEM’’ message on the multi-information display (see page

84

).

Malfunction Indicator Lamp

Readiness Codes 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.

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 a state emissions test until the readiness Emissions codes are set. Refer to Testing for more information (see 362
page ).

337

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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.

You will also see a ‘‘CHECK BRAKE SYSTEM’’ message on the multi- information display when this indicator comes on.

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. You will see a ‘‘BRAKE FLUID LOW’’ message on the multi-information display. 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 300

).

If the fluid level is low, take your vehicle to a dealer, and have the brake system inspected for leaks or worn brake pads.

338

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 345

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.

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If the electric motor will not close the moonroof, do the following:

1.

2.

Check the fuse for the moonroof motor (see page ). If the fuse is blown, replace it with one of the same or lower rating.

344

Try closing the moonroof. If the new fuse blows immediately or the moonroof motor still does not operate, you can close the moonroof manually.

3.

Get the moonroof wrench out of the tool kit in the trunk.

Closing the Moonroof

ROUND PLUG

SOCKET

MOONROOF WRENCH

If you need to close the moonroof manually, it means the moonroof opening/closing function is developing a problem. Have your vehicle checked by your dealer.

4.

5.

Use a screwdriver or coin to remove the round plug in the center of the headliner.

Insert the moonroof wrench into the socket behind this plug. Turn the wrench until the moonroof is fully closed.

6.

Remove the wrench. Reinstall the round plug.

339

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Fuses

INTERIOR

NOTCH

UNDER-HOOD

TAB

and

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 on the 343
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.

344

The interior fuse box is on the driver’s lower left side. To remove the fuse box lid, pull it toward you and take it out of its hinges.

The under-hood fuse box is located near the back of the engine compart- ment on the driver’s side. To open it, push the tabs as shown.

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.

340

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BLOWN

BLOWN

BLOWN

Fuses

3.

Check each of the large fuses in the under-hood fuse box by looking through the side window at the wire inside. Remove the screws with a Phillips-head screwdriver.

4.

Check the smaller fuses in the under-hood fuse box and all the fuses in the interior fuse box by pulling out each one with the fuse puller provided in the under-hood fuse box.

5.

Look for a blown wire inside the fuse. If it is blown, replace the fuse with one of the spare fuses of the same rating or lower.

CONTINUED

341

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Fuses

FUSE PULLER

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 with the fuse puller provided in the under- hood fuse box. Make sure you can do without that circuit temporarily (such as the accessory power socket or radio).

342

If you replace the blown fuse with a spare fuse that has a lower rating, it might blow out again. This does not indicate anything wrong. Replace the fuse with one of the correct rating as soon as you can.

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 driver’s power window fuse is removed, the AUTO function of the driver’s window may be disabled. You should reset the AUTO feature, (see page

148

).

If the radio fuse is removed, the audio system will disable itself. The next time you turn on the radio you will see ‘‘CODE’’ in the frequency display. Use the preset buttons to enter the five-digit code (see page 203

).

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UNDER-HOOD FUSE/RELAY BOX

No.

Amps.

Circuits Protected

No.

Amps.

Circuits Protected

15 A 30 A 10 A 15 A 10 A

Left Headlight Low Rear Defroster Coil Left Headlight Hi Small Light Right Headlight Hi

10

15 A 7.5 A 15 A 20 A 20 A

Right Headlight Low Back Up FI ECU (ECM/PCM) Condenser fan FR Fog Light

Fuse Locations

No. Amps.

Circuits Protected

11
12
13
14
15
16
17
18
19
20
21
22

23

20 A − 20 A 40 A 40 A 15 A 30 A 40 A 40 A 40 A 40 A 100 A

− 50 A 50 A

Cooling Fan Not Used Horn, Stop Rear Defroster Back Up, ACC Hazard VSA Motor VSA OP 1
OP 2
Heater Motor Battery Not Used ＋ Power Window Main

B IG1 Main

CONTINUED

343

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Fuse Locations

INTERIOR FUSE BOX

No.

Amps.

Circuits Protected

13

20 A

Passenger’s Power Seat Reclining Driver’s Power Seat Sliding Heated Seat Driver’s Power Seat Reclining Passenger’s Power Seat Sliding ACG Fuel Pump Washer Meter SRS IGP (PGM-FI ECU) (ECM/PCM) Left Rear Power Window Right Rear Power Window Passenger’s Power Window Driver’s Power Window Moonroof Not Used A/C Not Used ACC Not Used

20 A 20 A 20 A 20 A 15 A 15 A 10 A 7.5 A 10 A 7.5 A 20 A 20 A 20 A 20 A 20 A − 7.5 A − 7.5 A −

14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
: On Canadian models

＊

No.

Amps.

Circuits Protected

No.

Amps.

Circuits Protected

15 A 15 A (10 A) 10 A 20 A 10 A

DBW Ignition Coil Daytime Running Light LAF Audio Amp Interior Light

＊

10
11
12

10 A 20 A 15 A 7.5 A 30 A 7.5 A

Back-Up Lights Door Lock Front Accessory Sockets OPDS Wiper TPMS

344

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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.

There are two ways to tow your vehicle:

−

Flat-bedEquipment loads your vehicle on the back of a truck. transport your vehicle.

This is the best way to

The operator

−

The tow

Wheel-liftEquipment truck uses two pivoting arms that go under the tires (front) and lift them off the ground. The other two tires remain on the ground. acceptable way to tow your vehicle.

This is an

If, due to damage, your vehicle must be towed with the front wheels on the ground, do this:

Manualtransmission:

Release the parking brake. Shift the transmission to neutral. Leave the ignition switch in the ACCESSORY (I) position so the steering wheel does not lock.

Automatictransmission:

Release the parking brake. Start the engine. Shift to D, then to N. Turn off the engine. Leave the ignition switch in the ACCESSORY (I) position so the steering wheel does not lock.

Emergency Towing

Improper towing preparation will damage the transmission. Follow the above procedure exactly. If you cannot shif t the transmission or start the engine (automatic transmission), your vehicle must be transported with the f ront wheels of f the ground.

With the front wheels on the ground, it is best to tow the vehicle no farther than 50 miles (80 km), and keep the speed below 35 mph (55 km/h).

CONTINUED

345

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Emergency Towing

Trying to lif t or tow your vehicle by the bumpers will cause serious damage. The bumpers are not designed to support the vehicle’s weight.

The steering system can be damaged if the steering wheel is locked. Leave the ignition switch in the ACCESSORY (I) position, and make sure the steering wheel turns f reely bef ore you begin towing.

346

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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

................ ................................

. 348
. 350

(U. S. Vehicles)

.....................

.353

Uniform Tire Quality

Grading Treadwear Traction Temperature

.................................. ................................. ...................................... ............................. Tire Labeling ................................. Tire Pressure Monitoring System

(TPMS) Required Federal

−

Explanation

............................ Emissions Controls ....................... The Clean Air Act ..................... Crankcase Emissions Control .................................... Evaporative Emissions Control ....................................

System

System

Onboard Refueling Vapor

. 353
. 353
. 353
. 354
. 355

. 357
. 359
. 359

. 359

. 359

Recovery

. 359
Exhaust Emissions Controls . 360
. 360

................................ ... ....................

PGM-FI System Ignition Timing Control

System

................................

. 360

Three Way Catalytic

Converter

Replacement Parts

. 360
........................... .................... . 360
.. Three Way Catalytic Converter . 361
........................ . 362
Emissions Testing

347

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Identification Numbers

Your vehicle has several identifying numbers 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.

348

VEHICLE IDENTIFICATION NUMBER

CERTIFICATION LABEL

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Identification Numbers

ENGINE NUMBER

AUTOMATIC TRANSMISSION NUMBER

The engine number is stamped into the front of the engine block.

The transmission number is on a label on top of the transmission.

MANUAL TRANSMISSION NUMBER

349

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Specifications

Dimensions Length Width Height Wheelbase Track

Front Rear

Weights Gross vehicle weight rating

Seating Capacities Total Front Rear

Air Conditioning Refrigerant type Charge quantity Lubricant type

Capacities Fuel tank

350

183.3 in (4,657 mm) 69.4 in (1,762 mm) 57.3 in (1,456 mm) 105.1 in (2,670 mm) 59.6 in (1,515 mm) 59.6 in (1,515 mm)

See the certification label attached to the driver’s doorjamb.

HFC-134a (R-134a) −

17.6 19.4 oz (500 550 g)

−

SP-10

Approx. 17.1 US gal (64.7 )

Capacities Engine coolant

Change ＊ Manual Automatic

Total

Manual Automatic

Engine oil

Change ＊

Including filter Without filter

Total Change Total Change Total

Manual trans- mission fluid Automatic transmission fluid Windshield washer reservoir

1.40 US gal (5.3 ) 1.37 US gal (5.2 )

1.90 US gal (7.2 ) 1.88 US gal (7.1 )

4.4 US qt (4.2 )

4.2 US qt (4.0 )

5.6 US qt (5.3 ) 2.1 US qt (2.0 ) 2.3 US qt (2.2 ) 3.1 US qt (2.9 ) 6.9 US qt (6.5 )

U.S. Models Canada Models

2.6 US qt (2.5 ) 4.8 US qt (4.5 )

＊

1 :

＊

2 :

Including the coolant in the reserve tank and that remaining in the engine 0.16 US gal (0.6 ) Reserve tank capacity: Excluding the oil remaining in the engine

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Lights Headlights

High Low

Front fog lights Front turn signal Front parking lights/ Side marker lights Rear turn signal lights Stop/Taillights Taillights High-mount brake light Back-up lights Rear side marker lights License plate light Ceiling light Spotlights/Front ceiling lights Trunk light Door courtesy lights Vanity mirror lights

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

− − − − −

− − − − − − − − − − − −

＊

55 W 35 W 55 W 21 W 3 CP

21 W 21/5 W 5 W 21 W 21 W 3 CP 3 CP 8 W 8 W 5 W 2 CP 1.1 W

Battery Capacity

Fuses Interior

Under-hood

Engine Type

Bore x Stroke Displacement Compression ratio Spark plugs

Specifications

12 V

−

36 AH/5 HR

See page 344 or the fuse label attached to the inside of the fuse box door on each side of the dashboard. See page 343 or the fuse box cover.

Water cooled 4-stroke, DOHC

i-VTEC 4-cylinder, gasoline engine

3.43 x 3.90 in (87.0 x 99.0 mm)

144 cu-in (2,354 cm )

NGK: DENSO:

10.5 : 1
IZFR6K-11
SKJ20DR-M11

＊

On vehicles with high voltage discharge type headlights, replacement of a headlight bulb should be performed by your dealer.

Alignment Toe-in

Camber

Caster

Front Rear Front Rear Front

0.00 in (0.0 mm) 0.08 in (2.0 mm)

0° 1° − 3°13’

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Specifications

Tires Size

Pressure

Front/Rear Spare Front Rear Spare

P215/50R17 93V T135/80D16 101M

32 psi (220 kPa , 2.2 kgf/cm ) 30 psi (210 kPa , 2.1 kgf/cm ) 60 psi (420 kPa , 4.2 kgf/cm )

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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.

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.

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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.

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.

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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)

(3)

(1)

(4)

(2)

(1) Tire Size (2) Tire Identification Number (TIN) (3) Maximum Tire Pressure (4) Maximum Tire Load

Tire Labeling

−

Tire construction code (R indicates radial).

17

93

−

−

Rim diameter in inches.

Load index (a numerical code associated with the maximum load the tire can carry).

−

Speed symbol (an alphabetical code indicating the maximum speed rating).

TireSize Whenever tires are replaced, they should be replaced with tires of the same size. Following is an example of tire size with an explanation of what each component means.

P215/50R17 93V

−

Vehicle type (P indicates passenger vehicle).

215

−

Tire width in millimeters.

50

−

Aspect ratio (the tire’s section height as a percentage of its width).

CONTINUED

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Tire Labeling

MaximumTirePressure Max Press

−

The maximum air pressure the tire can hold.

MaximumTireLoad Max Load

−

The maximum load the tire can carry at maximum air pressure.

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.

FW6X

−

Tire type code.

2202

−

Date of manufacture. Year Week

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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. Under-inflation 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