... continued from
HAZ Window Decal thread
nonot wrote:Assuming you have a 4th gen 4runner, the vehicle never brakes. The vehicle will, upon invoking ATRAC or mire-control, cut power to the engine so you cannot accelerate above 2000 rpm. The only way to engage the brakes is to engage the downhill assist control. You may want to read your manual.
ATRAC is traction control, there is no stability control. The vehicle will only engage ATRAC if it senses the wheels skidding and not engaging. This can happen when skidding on gravel, a tire off the ground, etc.
To disable ATRAC you have to rewire the 4runner custom from the fusebox, engaging 4WD doesn't disengage it. Perhaps engaging the center diff does? I don't quite remember, although if the light on your dash is on it will show it disengaged.
In this case, everything you mention in relation to ATRAC above is
true, but NOT for my particular 4Runner.
Ok, let's start from scratch...
- It's a 2007 (4th gen) V-6 automatic.
- It does NOT have
Active Traction Control (A-TRAC) "A system that incorporated an Auto-LSD function, with Toyota stating this eliminated the need for a mechanical limited-slip rear differential."
- I KNOW it didn't have ATRAC as the first time I had one wheel in the air, I had NO traction. So, because it did NOT have any kind of traction control, I have installed an air-locker.
- It DOES have
Vehicle Stability Control (VSC)
- For
2008, Toyota
added a VSC cut-off switch. (so as a 2007 mine does NOT have a cut-off switch)
- However, I AM able to disable the VSC, by turning on the 'lock front & rear axles together' switch, which works ONLY when in 4-H or 4-L.
I CAN attest that VSC
DOES act on the brakes when
IT determines the need, not when I do.
Case in point:
2 days ago, as I was driving on Bush Highway where the road winds downhill by the "10 MPH" sign (when southbound). As I put just enough pressure on the brake to keep from speeding up due to a vehicle pulling trailer just ahead of me, it literally
slammed on the brakes... to the point the car behind almost hit me. In fact, he threw up his hands, which I can only assume was because he wasn't happy with my 'brake-test'.
Sure, the car was angled well downhill and the road curved, but it did NOT require that much brake.
And as a matter of fact, this exact thing happened a week earlier in the exact same spot, although not quite to the same degree of braking, and no other vehicles were in ahead or behind.
Now the THIRD time as I drove through there again yesterday in the same spot, I drove slow enough (basically 10 mph) so I didn't even touch the brake pedal and all was well, albeit the driver behind wasn't too happy going that slow.
I've had one other, much more serious action by the VSC which may have resulted in a head-on collision if I had not been totally alert... dangerous enough it got me to digging into possibly disabling it.
(This isn't the first Toyota-manufactured vehicle I've had stability issues with, so I've become very wary.)
RedRoxx44 wrote:Pain--- engaging 4 low as the Rubicon t-case has no synchro. I tried what the manual said but the only way I could get it to do so was to put the auto trans in park.
Same here when attempting to get into 4-Low... must be in Park, and even then there are times I have to put it in neutral, let it roll a bit, put it back into Park and try again. There are a few times I've had to repeat it 2-3 times before it finally engages, and without a gear-grinding growl.
I liked the solid handle feel in the Cherokee, when you KNEW it is in 4-Low.
RedRoxx44 wrote:The tire pressure indicator. I got an AV Pro Cal and reprogrammed that. If you air down or your tires are cold it would trigger the alarm.
I didn't like tha hassle so I just stopped airing down.
RedRoxx44 wrote:Overall too much electronics for my taste.
I'm in full agreement... disconnect the battery for any reason then one must 'normalize' the
- power windows
- sunroof
- tailgate
- possibly more? I knew those were because I had issues with all three.
I was unable to open the tailgate at all until it was normalized... I'll take the old manual latch instead of the 'automatic finger pincher' any day.
RedRoxx44 wrote:Good- the auto sway bar release.
I wish I had this... it might keep all four wheels on the ground in semi-eroded terrain.