"Service 4wd" light on
#3
ya i am agree with Muddydawg75 , that you need to diagnose it, a really experienced professional can sort out this problem and can fix it, so before it becomes worse , you should go to the shop to check the problem.
#4
Go to napa/auto zone they will put a code reader on your truck and tell you whats wrong with it, they wont clear the codes but will tell you what the coumputer in your truck is saying whats wrong.....
#5
h2 recent issues
I have 3 things that have recently occured if anyone knows the problem.
1. Right side (passenger) A/C blows HOT air. No matter where u turn the passenger climate control **** it's all hot air. Left (Driver side) is COLD.
2. When I turn my key off the driver seat contracts, you then must reset the seat position everytime you start it up.
3. The Air Suspension sometimes lowers when you turn the key off, next time you stop it doesn't. The air bags are not leaking, its something electrical?
Thanks for the help.
1. Right side (passenger) A/C blows HOT air. No matter where u turn the passenger climate control **** it's all hot air. Left (Driver side) is COLD.
2. When I turn my key off the driver seat contracts, you then must reset the seat position everytime you start it up.
3. The Air Suspension sometimes lowers when you turn the key off, next time you stop it doesn't. The air bags are not leaking, its something electrical?
Thanks for the help.
#6
mine had a service 4wd as well- -it was acting funny- red light neutral light lit up- then regular 4wd awd button lit up then back and forth-- sometimes the neutral red light is lit up while i am driving... wtf???
#9
3. The Air Suspension sometimes lowers when you turn the key off, next time you stop it doesn't. The air bags are not leaking, its something electrical?
#10
SERVICE 4WD mystery finally solved - Hummer Forums by Elcova
Dan