My father just got a new 2017 TRD Off Road Tundra. I was looking at the dash and couldn't find the buttons for ATRAC or the e-locker. How are those accessed?
2017 ATRAC and locker buttons? (1 Viewer)
- Thread starter RiverRatMatt
- Start date
-
- Tags
- locker
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
I don't believe they exist. They are on the Tacoma version.
- Thread starter
- #3
Oh, then what traction assists does the tundra get?
It should be in the Owner's Manual. I don't know if this is still good for the newest models, but it will give some idea of how all the stuff works on the Tundra. Read post #5. Trac control questions (please read before flaming) - TundraTalk.net - Toyota Tundra Discussion Forum
LINUS
Waiting for the Great Pumpkin
AFAIK, reading my manual the best you get is 4lo, which is still open driveshafts.
There's a guy who did a Sequoia T-case swap to go fulltime AWD, then lock the case to the driveshafts (surprisingly cheap to do, coming from LC's) - but no E-lockers of any sort for USDM. No clue of foreign markets, but doubt it.
Thread for trans case swap: AWD conversion completed - TundraTalk.net - Toyota Tundra Discussion Forum
So pretty much on 4x4 Tundras ATRAC is on in the background waiting to detect slippage. You can disable it if you like, but you don't have to activate it.
This is quoted from the link above shared by @1BiGGuy
"Here are the Systems that the truck uses
ABS - Antilock Braking System. Prevents wheel lockup during braking to keep control over directional changes while braking hard or in a panic situation. A modern 4-Channel ABS system can individually brake each wheel as needed, and monitors all four wheel speeds in relation to each other. The ABS is always "ON". You cannot (conventionally) shut it off.
ATRAC - This is Toyota's Traction Control. It applies the brakes to immediately stop a spinning wheel. Can also retard engine timing to reduce power applied to the driveline. When loss of traction is detected the wheel slip light flashes until traction is returned. This is not related to the Auto LSD function, and this light functions in all driving modes to let the driver know wheel slip is happening. ATRAC is defaulted to "ON".
VSC / TSC - Vehicle Stability Control / Trailer Sway Control. VSC uses the ABS sensors along with steering wheel angle sensor, gyrometer, and yaw sensors to determine if the vehicle is not following the path intended by the driver. Will apply brakes and cut throttle to "steer" the vehicle back into the intended line of travel. For 2011 and later year trucks, the VSC system also incorporates Trailer Sway Control, which detects trailer sway, and will apply brakes to help maintain directional stability while towing. If the VSC system is turned off, Trailer Sway Control will not function. VSC, and subsequently, Trailer Sway Control, is defaulted to "ON".
Auto LSD - Automatic Limited Slip Differential. The Auto LSD senses wheel speed differences between the two REAR tires only, and lightly applies the brakes to add drag to the wheel that does not have traction. This simulates having traction to that wheel and forces equal amounts of power to both sides of the differential. If the initial light pressure does not work, the system will gradually apply more "drag" to that wheel to help send power to the other side of the axle. It does not cut power from the engine. Auto LSD only works in 2wd, and is defaulted to "OFF".
In 2wd:
Normal (no buttons pressed, no dash lights on) = Truck will detect wheel spin and retard engine timing along with application of the brakes to the spinning wheel as needed. Vehicle Stability Control is on. ATRAC is on. Auto LSD is off.
One Push ("Auto LSD" light on) = Same as Normal, but with the addition of the Auto LSD function. Auto LSD overrides the ATRAC function, so the truck does not cut power from the engine. VSC is still on.
One Push for 3 Seconds ("Auto LSD" light on, "VSC OFF" light on) = Same as One Push, but without VSC functionality.
Second Push for 3 Seconds ("Auto LSD" light off, "VSC OFF" light on,"Traction Control OFF" light on) = No functionality of the ATRAC, Auto LSD, or VSC systems. The truck does not intervene when traction or directional stability is lost.
In 4wd High:
Normal (no buttons pressed, no dash lights on) = Truck will detect wheel spin and retard engine timing along with application of the brakes to the spinning wheel as needed. Vehicle Stability Control is on. ATRAC is on. Auto LSD is off (does not function in 4wd.)
One Push ("Traction Control OFF" light on) = Same as Normal, but without the ATRAC function. VSC is still on.
One Push for 3 Seconds ("Traction Control OFF" light on, "VSC OFF" light on) = Same as One Push, but without VSC functionality. The truck does not intervene when traction or directional stability is lost.
In 4wd Low:
Normal (no buttons pressed, "VSC OFF" light on) = Truck will detect wheel spin and retard engine timing along with application of the brakes to the spinning wheel as needed. Vehicle Stability Control is off by default. ATRAC is on. Auto LSD is off (does not function in 4wd.)
One Push ("Traction Control OFF" light on) = Same as Normal, but without the ATRAC function. VSC is still off. The truck does not intervene when traction or directional stability is lost."
This is quoted from the link above shared by @1BiGGuy
"Here are the Systems that the truck uses
ABS - Antilock Braking System. Prevents wheel lockup during braking to keep control over directional changes while braking hard or in a panic situation. A modern 4-Channel ABS system can individually brake each wheel as needed, and monitors all four wheel speeds in relation to each other. The ABS is always "ON". You cannot (conventionally) shut it off.
ATRAC - This is Toyota's Traction Control. It applies the brakes to immediately stop a spinning wheel. Can also retard engine timing to reduce power applied to the driveline. When loss of traction is detected the wheel slip light flashes until traction is returned. This is not related to the Auto LSD function, and this light functions in all driving modes to let the driver know wheel slip is happening. ATRAC is defaulted to "ON".
VSC / TSC - Vehicle Stability Control / Trailer Sway Control. VSC uses the ABS sensors along with steering wheel angle sensor, gyrometer, and yaw sensors to determine if the vehicle is not following the path intended by the driver. Will apply brakes and cut throttle to "steer" the vehicle back into the intended line of travel. For 2011 and later year trucks, the VSC system also incorporates Trailer Sway Control, which detects trailer sway, and will apply brakes to help maintain directional stability while towing. If the VSC system is turned off, Trailer Sway Control will not function. VSC, and subsequently, Trailer Sway Control, is defaulted to "ON".
Auto LSD - Automatic Limited Slip Differential. The Auto LSD senses wheel speed differences between the two REAR tires only, and lightly applies the brakes to add drag to the wheel that does not have traction. This simulates having traction to that wheel and forces equal amounts of power to both sides of the differential. If the initial light pressure does not work, the system will gradually apply more "drag" to that wheel to help send power to the other side of the axle. It does not cut power from the engine. Auto LSD only works in 2wd, and is defaulted to "OFF".
In 2wd:
Normal (no buttons pressed, no dash lights on) = Truck will detect wheel spin and retard engine timing along with application of the brakes to the spinning wheel as needed. Vehicle Stability Control is on. ATRAC is on. Auto LSD is off.
One Push ("Auto LSD" light on) = Same as Normal, but with the addition of the Auto LSD function. Auto LSD overrides the ATRAC function, so the truck does not cut power from the engine. VSC is still on.
One Push for 3 Seconds ("Auto LSD" light on, "VSC OFF" light on) = Same as One Push, but without VSC functionality.
Second Push for 3 Seconds ("Auto LSD" light off, "VSC OFF" light on,"Traction Control OFF" light on) = No functionality of the ATRAC, Auto LSD, or VSC systems. The truck does not intervene when traction or directional stability is lost.
In 4wd High:
Normal (no buttons pressed, no dash lights on) = Truck will detect wheel spin and retard engine timing along with application of the brakes to the spinning wheel as needed. Vehicle Stability Control is on. ATRAC is on. Auto LSD is off (does not function in 4wd.)
One Push ("Traction Control OFF" light on) = Same as Normal, but without the ATRAC function. VSC is still on.
One Push for 3 Seconds ("Traction Control OFF" light on, "VSC OFF" light on) = Same as One Push, but without VSC functionality. The truck does not intervene when traction or directional stability is lost.
In 4wd Low:
Normal (no buttons pressed, "VSC OFF" light on) = Truck will detect wheel spin and retard engine timing along with application of the brakes to the spinning wheel as needed. Vehicle Stability Control is off by default. ATRAC is on. Auto LSD is off (does not function in 4wd.)
One Push ("Traction Control OFF" light on) = Same as Normal, but without the ATRAC function. VSC is still off. The truck does not intervene when traction or directional stability is lost."
