2021 TOYOTA TUNDRA lock

4226-3. Do-it-yourself maintenance
■Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turni ng it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.
Check the battery as follows:
■Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
Fluid type Automatic transmission fluid DEXRON® II or III
Items Rag or paper, clean funnel (only for adding fluid)
WARNING
■Checking the fluid level
Take care, as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■ After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or
damage.
Battery
1
2
3
4
5
1
2

4236-3. Do-it-yourself maintenance
6
Maintenance and care
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sur e to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connectin g and dis-
connecting the charger cables to the battery.
■ After recharging/reconnecting the battery (vehicles with a smar t key sys-
tem)
The engine may not start. Follow the procedure below to initial ize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart key system may not be possi ble imme-
diately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACC. The engine may not start
when the engine switch turned from off. However, the engine wil l operate
normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the batte ry is recon-
nected, the vehicle will return the engine switch mode to the s tatus it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
1
2
3

4636-3. Do-it-yourself maintenance
6
Maintenance and care
■Front turn signal/parking lights (bulb type headlights)
Turn the bulb base counter-
clockwise.
Remove the light bulb.
■Front turn signal lights (LED type headlights)
Turn the bulb base counter-
clockwise.
Remove the light bulb.
1
2
1
2

4646-3. Do-it-yourself maintenance
■Front side marker lightsTo allow enough working
space, turn the steering
wheel to the opposite side of
the bulb to be replaced.
Remove the screws and
fender liner clip, and remove
the fender liner.
Turn the steering wheel to the
left when replacing the right side
light bulb, and turn the steering
wheel to the right when replac-
ing the left side light bulb.
Open the fender liner and
turn the bulb base counter-
clockwise.
1
2

4666-3. Do-it-yourself maintenance
■Front fog lights-bulb type (if equipped)To allow enough working
space, turn the steering
wheel to the opposite side of
the bulb to be replaced.
Remove the screws and
fender liner clip, and remove
the fender liner.
Turn the steering wheel to the
left when replacing the right side
light bulb, and turn the steering
wheel to the right when replac-
ing the left side light bulb.
Unplug the connector while
depressing the lock release.
Turn the bulb counterclock-
wise.
1
2
3

4676-3. Do-it-yourself maintenance
6
Maintenance and care
Set the new light bulb.
Align the 3 tabs on the light bulb
with the mounting, and insert.
Turn it clockwise to set.
Install the connector.
Shake the bulb base gently to
check that it is not loose, turn
the fog lights, on once and visu-
ally confirm that no light is leak-
ing through the mounting.
Reinstall the fender liner and
install the screws and clip.
4
5
6

4686-3. Do-it-yourself maintenance
■Stop/tail and rear side marker lights, back-up lights and rear
turn signal lightsRemove the bolts and rear
combination assembly.
Turn the bulb bases counter-
clockwise.Rear turn signal light
Back-up light
Stop/tail and rear side
marker light
Remove the light bulb. Rear turn signal light
Back-up light
Stop/tail and rear side
marker light
1
2
1
2
3
3
1
2
3

4696-3. Do-it-yourself maintenance
6
Maintenance and care
■License plate lightsTurn the bulb base counter-
clockwise.
Remove the light bulb.
1
2