2021 TOYOTA TUNDRA fuel

7Introduction
INTRODUCTION

THE NEW WORLD OF
ANTI-THEFT TECHNOLOGY
This Toyo t a vehicle may be equipped
with an electronic “immobilizer” anti-theft
system. When the key is inserted into the
ignition switch, it transmits an electronic
code to an immobilizer computer. The
engine will only start if the code in the
key matches the code in the immobilizer.
If the code does not match, the immobilizer
disables the ignition and fuel systems.
While an exact physical copy of the key
will open the door and allow retrieval of
items locked in the vehicle, it won’t start
the vehicle unless the key has the same
code as the immobilizer.


SECURITY
For security purposes, access to key
codes and service procedures for
electronically registering replacement
keys is restricted. Only a Toyo t a dealer
or certain bonded/registered independent
locksmiths can generate replacement keys.
THE IMMOBILIZER KEY

13Yo u r Warranties in Detail
WARRANTY
NEW VEHICLE LIMITED WARRANTY

W H AT IS COVERED
AND HOW LONG
Basic Warranty
This warranty covers repairs and
adjustments needed to correct defects
in materials or workmanship of any
part supplied by Toyo t a , subject to the
exceptions indicated under “What
Is Not Covered” on pages 14 –15.
Coverage is for 36 months or 36,000 miles,
whichever occurs rst, with the exception of
air conditioning recharge, wheel alignment
and wheel balancing, which are covered for
12 months or 12,000 miles, whichever
occurs rst.
Powertrain Warranty
This warranty covers repairs needed to
correct defects in materials or workmanship
of any component listed below and in the
next column and supplied by Toyo t a , subject
to the exceptions indicated under “What Is
Not Covered” on pages 14 –15.
Coverage is for 60 months or 60,000 miles,
whichever occurs rst.
Engine
Cylinder block and head and all internal
parts, timing gears and gaskets, timing
chain/belt and c over, ywheel, valve
covers, oil pan, oil pump, engine mounts,
turbocharger housing and all internal parts,
supercharger housing and all internal
parts, engine control computer, water
pump, fuel pump, seals and gaskets.
Transmission
and Transaxle
Case and all internal parts, torque
converter, clutch c over, transmission
mounts, transfer case and all internal
parts, engine control computer, seals
and gaskets.
Front-Wheel-Drive System
Final drive housing and all internal parts,
axle shafts, drive shafts, constant velocity
joints, front hub and bearings, seals
and gaskets.
Rear-Wheel-Drive System
A xle housing and all internal parts,
propeller shafts, U-joints, axle shafts,
drive shafts, bearings, supports, seals
and gaskets.
Restraint Systems Warranty
This warranty covers repairs needed to
correct defects in materials or workmanship
of any seatbelt or airbag system supplied by
Toyo t a , subject to the exceptions indicated
under “What Is Not Covered” on pages 14 –15.
Coverage is for 60 months or 60,000 miles,
whichever occurs rst.
For vehicles sold and registered in the
state of Kansas, the warranty for seatbelts
and related components is 10 years,
regardless of mileage.

14Yo u r Warranties in Detail
WARRANTY


Corrosion Perforation Warranty
This warranty covers repair or replacement
of any original body panel that develops
perforation from corrosion (rust-through),
subject to the exceptions indicated under
“What Is Not Covered” on pages 14 –15 .
Coverage is for 60 months, regardless
of mileage.
For information on how to protect your
vehicle from corrosion, refer to sections
related to maintenance and care in the
Owner’s Manual.
To w i n g
When your vehicle is inoperable due to
failure of a warranted part, towing service
to the nearest authorized Toyo t a dealership
is covered.


W H AT IS NOT COVERED
This warranty does not cover damage or
failures resulting directly or indirectly from
any of the following:
• Fire, accidents or theft
• Abuse or negligence
• Misuse — for example, racing
or overloading
• Improper repairs
• Alteration or tampering, including
installation of non-Genuine
Toyo t a Accessories
• Lack of or improper maintenance,
including use of fluids and fuel
other than those specified in the
Owner’s Manual
• Installation of parts that are not
Toyo t a Genuine Parts
• Airborne chemicals, tree sap, road
debris (including stone chips), rail dust,
salt, hail, floods, wind storms, lightning
and other environmental conditions
• Water contamination
This warranty also does not cover the following:
Tires
Tires are covered by a separate warranty
provided by the tire manufacturer. See
page 29.
Normal Wear and Te a r
Noise, vibration, cosmetic conditions and
other deterioration caused by normal wear
and tear.
NEW VEHICLE LIMITED WARRANTY

18Yo u r Warranties in Detail
WARRANTY


W H AT IS NOT COVERED
These warranty obligations do not apply
to failures or noncompliance caused by:
• The use of replacement parts not
certified in accordance with aftermarket
parts certification regulations.
• The use of replacement parts not
equivalent in quality or design to
original equipment parts.
Provisions under the “What Is Not
Covered” section of the New Vehicle
Limited Warranty also apply to
this warranty.


WARRANTY PARTS LIST
Air/Fuel Metering System
• Air/fuel ratio feedback control system
• Cold-start enrichment system
• Deceleration control system
• Electronic fuel injection system components
– Airflow sensor
– Engine control module (8/80)
– Throttle body
– Other components
Air Induction System
• Intake manifold and intake air surge tank
Catalyst System
• Catalytic converter and protector (8/80)
• Constricted fuel filler neck
• Exhaust manifold
• Exhaust pipe (manifold to catalyst
and/or catalyst to catalyst)
Evaporative Control System
• Charcoal canister
• Diaphragm valve
• Fuel filler cap
• Fuel tank
• Vapor liquid separator
FEDERAL EMISSION CONTROL WARRANTY
8/80 = Covered for eight years or 80,000 miles, whichever occurs first.

23Yo u r Warranties in Detail
WARRANTY
CALIFORNIA EMISSION CONTROL WARRANTY
Vehicles equipped with a California
Certied Emission Control System
that are registered and operated in
California or any state that adopts
California emission warranty provisions
are covered by this warranty. Currently,
Connecticut, Delaware, Maine,
Maryland, Massachusetts, New Jer sey,
New York, Oregon, Pennsylvania, Rhode
Island, Vermont and Washington are the
other states to which this warranty
applies. Vehicles covered by this
warranty are also covered by the
Federal Emission Control Warranty
(see page 17 ).

YOUR WARRANTY RIGHTS
AND OBLIGATIONS
The California Air Resources Board (CARB)
and Toyo t a are pleased to explain the
emission control system warranty for your
2021 vehicle. In California, new motor
vehicles must be designed, built and
equipped to meet the state’s stringent
anti-smog standards. CARB regulations
require that Toyo t a must warrant the
emission control system on your vehicle
for the time periods indicated on the next
page, provided there has been no abuse,
neglect or improper maintenance of
your vehicle.
Your emission control system may include
parts such as the fuel injection system,
ignition system, catalytic converter and
engine computer. Also included may be
hoses, belts, connectors and other
emissions-related assemblies.
Where a warrantable condition exists,
Toyo t a will repair your vehicle at no cost
to you, including diagnosis, parts and la b o r.

25Yo u r Warranties in Detail
WARRANTY
CALIFORNIA EMISSION CONTROL WARRANTY


W H AT IS NOT COVERED
These warranty obligations do not apply
to failures or noncompliance caused by:
• The use of replacement parts not
certified in accordance with aftermarket
parts certification regulations.
• The use of replacement parts not
equivalent in quality or design to
original equipment parts.
Provisions under the “What Is Not Covered”
section of the New Vehicle Limited Warranty
also apply to this warranty.
PARTS L I S T:
LONG-TERM EMISSION
DEFECT WARRANTY
The parts listed here are covered for seven
years or 70,000 miles from the vehicle’s
in-service date, whichever occurs rst.
Air Induction/Exhaust System
• Air pump
• Emission control valve
• Intake manifold
• Throttle body


Catalyst System
• Exhaust front pipe (including
catalytic converter)
• Exhaust front pipe no. 2 (including
catalytic converter)
• Exhaust manifold
• Exhaust manifold gasket
Evaporative Control System
• Charcoal canister
• Fuel tank
Fuel Control System
• Engine control computer
(engine control module)
• Fuel pump
Ignition System
• Knock sensor
Other Parts Used in
Systems Listed
• Transmission solenoid

41Maintenance Log
MAINTENANCE LOG
MAINTENANCE
30,000 miles or 36 months
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Replace cabin air filter
Replace engine air filter
Replace engine oil and oil filter2
Re-torque propeller shaft bolt
Rotate tires
Inspect the following:
_ Automatic transmission for
signs of leakage
_ Ball joints and dust covers
_ Brake lines and hoses
_ Brake linings/drums and
brake pads/discs
5
_ Drive shaft boots (4WD)
_ Engine coolant
6
_
Exhaust pipes and mountings
Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Replace transfer case oil (4WD)
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:
7
Replace front differential oil (4WD)
Replace rear differential oil
Replace transfer case oil (4WD)
Tighten nuts and bolts on chassis and body
DEALER SERVICE VERIFICATION:
D
ATE:
MILEAGE:
1 Inspect sealed transmissions, transfer cases and differentials for signs of leakage. If any leakage from a sealed
component is suspected, it is recommended that you have the sealed component inspected by a Toyo t a dealer. Inspect
power steering fluid (if equipped) and brake fluid level/condition. Inspect engine and inverter (if equipped) coolant
level/condition/freezing point. Your dealer may recommend services (Dealer-Recommended Maintenance) based on
inspection results.
2 Reset the oil replacement reminder light (“MAINT REQD”) or the message “OIL MAINTENANCE REQUIRED” on the
multi-information display after maintenance at every 5,000 miles.
3 Perform these service items only if you drive primarily under the conditions indicated. 4 Includes operating on roads which road salt has been applied. 5 Inspect thickness measurement and disc runout.6 Refer to “Engine Coolant” in the “Explanation of Maintenance Items” section in the back of this guide for more information.7 Not all vehicles are designed for towing. Refer to your Vehicle Owner’s Manual for details.
_
Front differential oil (4WD)
_ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
_ Fuel tank cap gasket
_ Radiator and condenser
_ Rear differential oil
_ Steering gear
_ Steering linkage and boots
_ Transfer case oil (4WD)

45Maintenance Log
MAINTENANCE LOG
MAINTENANCE
60,000 miles or 72 months
Check installation of driver’s floor mat
Inspect and adjust all fluid levels1
Inspect wiper blades
Replace cabin air filter
Inspect the following:
_ Automatic transmission for
signs of leakage
_ Ball joints and dust covers
_ Brake lines and hoses
_ Brake linings/drums and
brake pads/discs
5
_ Drive belts6
_ Drive shaft boots (4WD)
_ Engine coolant
7
_
Exhaust pipes and mountings

Additional Maintenance Items for Special Operating Conditions3
Driving on dirt roads or dusty roads:Replace transfer case oil (4WD)
Tighten nuts and bolts on chassis and body
Driving while towing, using a car-top carrier, or heavy vehicle loading:
8
Replace automatic transmission fluid
Replace front differential oil (4WD)
Replace rear differential oil
Replace transfer case oil (4WD)
Tighten nuts and bolts on chassis and body
DEALER SERVICE VERIFICATION:
D
ATE:
MILEAGE:
1 Inspect sealed transmissions, transfer cases and differentials for signs of leakage. If any leakage from a sealed
component is suspected, it is recommended that you have the sealed component inspected by a Toyo t a dealer. Inspect
power steering fluid (if equipped) and brake fluid level/condition. Inspect engine and inverter (if equipped) coolant
level/condition/freezing point. Your dealer may recommend services (Dealer-Recommended Maintenance) based on
inspection results.
2 Reset the oil replacement reminder light (“MAINT REQD”) or the message “OIL MAINTENANCE REQUIRED” on the
multi-information display after maintenance at every 5,000 miles.
3 Perform these service items only if you drive primarily under the conditions indicated. 4 Includes operating on roads which road salt has been applied. 5 Inspect thickness measurement and disc runout. 6 Initial inspection at 60,000 miles/72 months. Inspect every 15,000 miles/18 months thereafter.7 Refer to “Engine Coolant” in the “Explanation of Maintenance Items” section in the back of this guide for more information.8 Not all vehicles are designed for towing. Refer to your Vehicle Owner’s Manual for details.
_
Front differential oil (4WD)
_ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
_ Fuel tank cap gasket
_ Radiator and condenser
_ Rear differential oil
_ Steering gear
_ Steering linkage and boots
_ Transfer case oil (4WD)
Replace engine air filter
Replace engine oil and oil filter2
Re-torque propeller shaft bolt
Rotate tires