2003 GMC YUKON DENALI maintenance

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Page 311 of 447

GMC YUKON DENALI 2003  Owners Manual See Engine  Compartment Overview on page 5-12 for 
more  information  on location. 
1.  Flip  the handle up  and then  pull  out the  dipstick 
and  wipe  it with  a clean  rag  or paper towel. 
2. Pu

Page 325 of 447

GMC YUKON DENALI 2003  Owners Manual Brakes 
Brake Fluid 
Your brake master cylinder  reservoir is filled with DOT-3 
brake fluid.  See Engine  Compartment Overview on 
page 
5-12 for  the  location  of the  reservoir. 
There  are only t

Page 328 of 447

GMC YUKON DENALI 2003  Owners Manual Brake  Pedal  Travel Battery 
See  your  dealer if the brake pedal does  not return  to 
normal  height,  or 
if there  is a  rapid increase  in 
pedal  travel. This  could be a sign  of brake trouble

Page 335 of 447

GMC YUKON DENALI 2003  Owners Manual All-Wheel Drive 
Lubricant checks  in  this section  also  apply to these 
vehicles.  However,  there are two  additional  systems that 
need  lubrication. 
Transfer Case 
When  to Check  Lubricant 
R

Page 336 of 447

GMC YUKON DENALI 2003  Owners Manual Front Axle To get  an  accurate  reading,  the vehicle  should  be on  a 
When  to Check  and  Change Lubricant level surface. 
If  the  level 
is below the  bottom  of the  filler  plug  hole, 
Refer

Page 337 of 447

GMC YUKON DENALI 2003  Owners Manual Rear Axle 
When to Check Lubricant 
Refer to  the  Maintenance  Schedule to determine  how 
often  to  check  the  lubricant. See Part 
A: Scheduled 
Maintenance  Services 
on page 6-4. 
How to Check

Page 343 of 447

GMC YUKON DENALI 2003  Owners Manual Windshield  Wiper  Blade Replacement 
Windshield wiper  blades should  be  inspected at  least 
twice  a  year  for  wear  and cracking.  See  Wiper 
Blade  Check  under 
At Least Twice a Year on page

Page 345 of 447

GMC YUKON DENALI 2003  Owners Manual Notice: Don’t  let anyone tell  you  that underinflation 
or  overinflation is all  right. It’s not.  If  your  tires 
don’t  have  enough  air  (underinflation), you can get 
the following: 
To