2012 TOYOTA TUNDRA Owners Manual

273
2-5. Driving information
2
When driving
■
GAWR (Gross Axle Weight Rating)
The maximum allowable gross
axle weight. The gross axle
weight is the load placed on
each axle (front and rear).
■ TWR (Trailer Weight Rating)
The maximum allowable gross
trailer weight. The gross trailer
weight is the sum of the trailer
weight and the weight of the
cargo in the trailer.
TWR is calculated assuming
base vehicle with one driver, one
front passenger, towing package
(if available), hitch and hitch sys-
tems (if required).
Additional optional equipment,
passengers and cargo in the vehi-
cle will reduce the trailer weight
rating so as not to exceed
GCWR, GVWR and GAWR.
If the gross trailer weight exceeds
3000 lb. (1360 kg), it is recom-
mended to use a trailer with 2 or
more axles.
Front GAWR
Rear GAWR
(With brakes)

274 2-5. Driving information
■Unbraked TWR (Unbraked Trailer Weight Rating)
The trailer weight rating for tow-
ing a trailer without a trailer ser-
vice brake system.
■ Tongue Weight
The load placed on the trailer
hitch ball. (P. 281)
■ Kingpin Weight
The load placed on the 5th wheel
mount or the gooseneck ball.
( P. 281)
(Without brakes)

275
2-5. Driving information
2
When driving
Weight limits
● The gross trailer weight must never exceed the TWR described in
the table. ( P. 276, 665)
● The gross combination weight must never exceed the GCWR
described in the table. ( P. 276)
●The gross vehicle weight must
never exceed the GVWR indi-
cated on the Certification
Label.
● The gross axle weight on each
axle must never exceed the
GAWR indicated on the Certi-
fication Label.
● If the gross trailer weight is over the unbraked TWR, trailer service
brakes are required.
● If the gross trailer weight is over 2000 lb. (907 kg), a sway control
device with sufficient capacity is required.
● If the gross trailer weight is over 5000 lb. (2268 kg), a weight dis-
tributing hitch with sufficient capacity is required.

276 2-5. Driving information
GCWR, TWR, Unbraked TWR, Fifth wheel and Gooseneck towing TWR
Confirm that the gross trailer weight, gross combination weight, gross
vehicle weight, gross axle weight and tongue weight are all within the
limits.
■GCWR
* and TWR*
Regular Cab models
*: These models meet the tow-vehicle trailering requirement of SAE
International per SAE J2807.
Model code*1EngineDriving
systemBed
typeGCWRTWR
GSK50L-TRADKA 4.0L V6
(1GR-FE) engine 2WDStandard
10000 lb.
(4535 kg) 4900 lb.
(2220 kg)
GSK51L-THADKA Long 4800 lb.
(2175 kg)
UPK50L-TRTDKA 4.6L V8
(1UR-FE) engine
2WDStandard
12500 lb.
(5670 kg)
*27100 lb.
(3220 kg)*2
14000 lb.
(6350 kg)*38600 lb.
(3900 kg)*3
USK51L-THTDKA
5.7L V8
(3UR-FE) engine Long
14000 lb.
(6350 kg)
*28400 lb.
(3810 kg)*2
16000 lb.
(7255 kg)*310400 lb.
(4715 kg)*3
USK55L-TRTDKA
4WDStandard 14000 lb.
(6350 kg)
*28200 lb.
(3715 kg)*2
15500 lb.
(7030 kg)*39700 lb.
(4395 kg)*3
15000 lb.
(6800 kg)*3,49200 lb.
(4170 kg)*3,4
USK56L-THTDKA Long14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
16000 lb.
(7255 kg)*310100 lb.
(4580 kg)*3

277
2-5. Driving information
2
When driving
*1: The model code is indicated on the Certification Label. (P. 668)*2: Without towing package*3: With towing package*4: P275/55R20 tires
Double Cab models
USK55L-TRTDGA
5.7L V8
(3UR-FBE) engine 4WDStandard 14000 lb.
(6350 kg)
*28200 lb.
(3715 kg)*2
15500 lb.
(7030 kg)*39700 lb.
(4395 kg)*3
15000 lb.
(6800 kg)*3,49200 lb.
(4170 kg)*3,4
USK56L-THTDGA Long14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
16000 lb.
(7255 kg)*310100 lb.
(4580 kg)*3
Model code*1EngineDriving
systemBed
typeGCWRTWR
GSK51L-CRASKA 4.0L V6
(1GR-FE) engine
2WD
Standard 10000 lb.
(4535 kg) 4500 lb.
(2040 kg)
UPK51L-CRTSKA 4.6L V8
(1UR-FE) engine 12500 lb.
(5670 kg)
*26700 lb.
(3035 kg)*2
14000 lb.
(6350 kg)*38200 lb.
(3715 kg)*3
UPK56L-CRTSKA 4WD12500 lb.
(5670 kg)
*26400 lb.
(2900 kg)*2
14000 lb.
(6350 kg)*37900 lb.
(3580 kg)*3
Model code*1EngineDriving
systemBed
typeGCWRTWR

278 2-5. Driving information
*1: The model code is indicated on the Certification Label. (P. 668)*2: Without towing package*3: With towing package
USK51L-CRTSKA
5.7L V8
(3UR-FE) engine 2WD
Standard 14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
16000 lb.
(7255 kg)*310100 lb.
(4580 kg)*3
USK51L-CRTLKA 14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
15900 lb.
(7210 kg)*310000 lb.
(4535 kg)*3
USK52L-CHTSKA Long16000 lb.
(7255 kg) 10000 lb.
(4535 kg)
USK56L-CRTSKA
4WDStandard 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39700 lb.
(4395 kg)*3
USK56L-CRTLKA 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39800 lb.
(4445 kg)*3
USK57L-CHTSKA Long16000 lb.
(7255 kg) 9800 lb.
(4445 kg)
USK56L-CRTSGA 5.7L V8
(3UR-FBE) engine 4WDStandard 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39700 lb.
(4395 kg)*3
USK56L-CRTLGA 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39800 lb.
(4445 kg)*3
USK57L-CHTSGA Long16000 lb.
(7255 kg) 9800 lb.
(4445 kg)
Model code*1EngineDriving
systemBed
typeGCWRTWR

279
2-5. Driving information
2
When driving
CrewMax models
Model code*1EngineDriving
systemBed
typeGCWRTWR
UPK51L-PSTSKA 4.6L V8
(1UR-FE) engine 2WD
Short 12500 lb.
(5670 kg)
*26600 lb.
(2990 kg)*2
14000 lb.
(6350 kg)*38100 lb.
(3670 kg)*3
UPK56L-PSTSKA 4WD12500 lb.
(5670 kg)
*26200 lb.
(2810 kg)*2
14000 lb.
(6350 kg)*37700 lb.
(3490 kg)*3
USK51L-PSTSKA
5.7L V8
(3UR-FE) engine 2WD
14000 lb.
(6350 kg)
*28000 lb.
(3625 kg)*2
15900 lb.
(7210 kg)*39900 lb.
(4490 kg)*3
USK51L-PSTLKA 14000 lb.
(6350 kg)
*27900 lb.
(3580 kg)*2
15400 lb.
(6985 kg)*39300 lb.
(4215 kg)*3
USK56L-PSTSKA
4WD14000 lb.
(6350 kg)
*27700 lb.
(3490 kg)*2
15300 lb.
(6940 kg)*39000 lb.
(4080 kg)*3
USK56L-PSTLKA 14000 lb.
(6350 kg)
*27700 lb.
(3490 kg)*2
15300 lb.
(6940 kg)*39000 lb.
(4080 kg)*3

280 2-5. Driving information
*1: The model code is indicated on the Certification Label. (P. 668)*2: Without towing package*3: With towing package
■Unbraked TWR*
1000 lb. (453 kg)
USK56L-PSTSGA
5.7L V8
(3UR-FBE) engine 4WD Short 14000 lb.
(6350 kg)
*27700 lb.
(3490 kg)*2
15300 lb.
(6940 kg)*39000 lb.
(4080 kg)*3
USK56L-PSTLGA 14000 lb.
(6350 kg)
*27700 lb.
(3490 kg)*2
15300 lb.
(6940 kg)*39000 lb.
(4080 kg)*3
*: These models meet the tow-vehicle trailering requirement of SAE International per SAE J2807.
Model code*1EngineDriving
systemBed
typeGCWRTWR