I have a holden rodeo 4wd petrol 2001 auto transmission light comes on when the trans is cold it goes into limp mode so i drive it for a bit turn car key off then on put it in drive and all is good. A

In Australia?
ask any shop that does transmissions for help. there.
join a HOLDEN forum down there, we have none in Yankee land.
that transmission is and E box, electronically shifted called a TCM
and that TCM must like any new box.
Only Holden will have answers this complex.
Ask Them?
we are not any kind of Holden forum here.

Read out the codes, fix the faults , cancel the codes, test drive if any codes come back the fault is not fixed , it won't come out of limp mode till the faults are fixed.

holden rodeo 4X4
drive train fault


P1875 4WD Low Switch Circuit Electrical

the TCU

engine lights refer to engine and the transmission
what fault codes were reported as many codes have more that one cause for the fault

Get a trained person to check the transmission. If it goes backwards but only goes forward in winter mode then there is a trans fault because auto's generally pull away in 2nd gear in winter mode to reduce wheelspin.

check the oil level in the sump, coolant level, coolant temperature (overheating), transmission oil level if auto. The limp mode is energised by any number of sensors that register a fault that is detrimental to the engine/ gear box. Run the fault codes and repair any faulty units . Reset the CPU with a scanner .

I can explain the sluggishness you get after the fault occurs and the light appears. The rodeo will go into what's called 'limp home mode' when it detects a fault. It is a safety feature that locks the car in second (or third) gear so u can get home or to the mechanic...slowly. If you turn the car off and re-start it will re-set. I recently was having transmission problems with my 2002 v6. It would occasionally clunk badly when pulling up to a slow stop. Intermittent problem that I couldn't reproduce with the mechanic (of course). They changed the transmission oil which was low and old, not a cheap job but probably a good idea. Unfortunately problem was still there. Plug in diagnostic module at transmission specialist showed no current faults when they first checked it, but a look through the fault history when I took it back and told them problem was still there showed a fault with the TPS or Throttle Position Sensor. Replaced that (not very expensive) and its been perfect ever since. May not be your problem, but get the transmission guy to check fault history, not just current faults. Don't know why my guy didn't do it the first time. Best of luck

the tcm may be faulty or has a loose ground, try swaping in another if you can get one borrowed or a cheap used one from a salvage unit

I'm having same problem on my 2000 model rodeo 4wd 3.2L V6. Other day check engine light came on. I checked engine bay nothing abnormal, or power loss. Next day light was gone. 2 days later driving, a sudden loss of power and light came up. After idling for a couple of minutes, drove off with light still on but all power back. 1 hour later of faultless driving loss of power for a minute or so. Engine temp normal. Had break for 1/2 hour and set off for last hour of journey without fault except check engine light still on. Following dayon startup light went out???
Seeking help from experts.

Code 24 is a vehicle speed signal sensor fault, the sensor most likely does not provide a useable signal until about 25 MPH, when the computer doesn't see any signal after that speed it turns on the light. Make sense?