There is a differential indicator light on the dashboard that is supposed to come on when the differential is engaged. it comes on for a few seconds when you start the car. recently the diffential switch got depressed (the seitch on the dash panel above the gearshift) but the dash light did not come on. the differential was locked but did not indicate so. any ideas why?

SOURCE: Differential Fluid

its just 80-90 gear lube

SOURCE: reversed into driveway,gearbox stuck in

sounds like shifter fork inside transmission has broken, literally snapped in two.

SOURCE: The warning light that looks like a car with

This warning light should indicate that there is a rear light failure. Running lights, brake lights, signal lights, reverse lights. You should check all the bulbs to see if any are burnt out.

SOURCE: 2007 Toyota Sienna: Dashboard warning light - What does it mean?

That light means that you are setting the tire pressure guage. there is nothing wrong with the van.

Harvey N Tawatao

• 3854 Answers
• Posted on Feb 02, 2010

SOURCE: 4x4 not engaging. lights up on dash and you can

I would check your fuses or connectors first. It is strange that you get no error codes or warning lights. Nothing! I am assuming that it is Electronic shift on the fly.
The integrated wheel end (IWE) system contains the following: Vacuum reservoir
IWE solenoid
IWEs (spring loaded vacuum hubs)
Vacuum hoses
Check valve
The IWE system uses vacuum hubs that engage the front wheel hubs to the front halfshafts or disengage the front wheel hubs from the front halfshafts. The IWE solenoid receives engine vacuum from the vacuum reservoir.
When the 4-wheel drive system is in 2WD mode, the 4x4 module (PCM) supplies a ground path to the IWE solenoid to apply vacuum to the integrated wheel ends (disengaging the front hubs from the front halfshafts). In 4WD mode, the 4x4 module (PCM) does not supply the ground path to the IWE solenoid, vacuum is not applied to the integrated wheel ends and an internal spring keeps the front hubs engaged to the front halfshafts.
There are issues with the 4x4 system I.w.e ends ingesting moisture/water into vacuum actuation system causing no 4x4 or ratcheting outboard I.w.e ends. (Even if you don't go 4x4'n ) pull off vacuum hoses @ I.w.e ends and check for moisture/water/rust also the I.w.e is not part of the wheel bearing itself It is the part on the axle side (inboard) of the spindle. (EVEN DEALERS CAT LISTED WRONG )Many shops just replace the wheel bearing side this may fix the symptom but not the true cause of damaged I.w.e. ! Check with a reputable dealer they should have info on this condition and repair procedure.
Good luck and start with checking the IWE system in the front end.