Top 10 2001 Chevrolet Tahoe Questions & Answers

I hope you have the problem fixed by now, but, it is the ABS control under the truck. You need to go under the hood and open the fuse box and disconnect the 60 amp fuse for the ABS, this will turn it off before it burns up. This however will also cause the traction assist off light to stay lit all the time. To the fix the problem you can pay tons of money ($700 or so) to have the dealership install a ABS control and the problem will happen again over time. Or, remove it yourself, go on ebay and ship it off to a guy who repairs them for about $150 and you will never have the problem again. Also, if you wrap your cable ends with plastic and protect them good, you can still drive you truck while the part is being worked on. It takes about a week.

Notorious for plugged heater cores. Also updated plastic restriction couplers mounted at heater core available from dealer. Try back flushing heater core. Run engine till its at operating temperature then carefully hold the inlet and outlet hose breifly with heater fan on high if hoses are nearly the same temp then flow is good , if not then core is plugged.

The fan loosens counter clockwise.Use a 1 7/16" open end wrench.Put the wrench on the nut and hit it with a hammer to loosen.Leave the belt on until the fan is loose.

Very simple. 1 turn the key to "on" 2 press you accelerator pedal all the way down 3 times 3 press the pedal down 1 more time and hold for a total of 4 times and wait for the display to reset 4 turn the key off and turn back on to verify it has reset. That's it!

check and see if you have power to your switch, it might just be a fuse. worse case is you'll have to change the actual lights. was it starting to get dimer and dimmer?

these fuses are in the engine compartment fuse box. There is a 15 apm fuse for the lighter and a 20 amp fuse for the rest of the aux power outlets. I could not find the map for the box. The layout of the box is shown below.

If the light is flashing it may be an issue with the passlock sensor.Here is a process you can try to reset the passlock. If this process does not work you may need to replace the ignition tumbler and passlock.
PASSKEY LOCKOUT RESET ALL GM CARS 1999 AND UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key.

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The diagram of the vacuum system of this engine is under the hood on the federal emission system sticker.

I think I asked why before, what do you need to do that would cause you to think by pass will cure ,