Brake fluid low with no external leak and moaning sound when depressing brake pedal. Brake Master Cyl found to be leaking past seal into brake booster. Replace both units, new fluid and bleed. Stabiltrack and antilock Brake warning lights illluminated on dic. Diagnostic called out right rear speed sensor. Sensor tested good. Broken wire found inside wire loom 12 inches from speed sensor. Cable replaced both lights went off.
Driver side rear hub sensor bad, had to replace hub and sensor. Our warranty had lapsed at 100,000 but GM stood behind this repair.
Problem with stabilitrak button no longer responding sending a break warning light to service breaks immediately. Dealer had reset the system and repair.
During a routine oil change I noticed the brake master cylinder cap was missing. I ordered the part from the dealer, and had Midas drain the cylinder and replace the fluid.
"Stabilitrac" light illuminates occasionally after 20 mins of driving. Dealer could not verify concern thru computer, recommended software update ($100), reprogrammed ECM. Cannot verify yet that this solved the issue
Traction control would go on and go off intermittently.
master brake cylinder has leak
brake shield rusted off
Stability track light on and truck jerking not switching gears properly
The traction control and brake light was always on and a message saying the 4 wheel drive was not operational.
noisy brake pedal. Cleaned and lubricated master cylinder piston
fluid was low and needed to be flushed
Brake pedal squeaks when pressing pedal. Drained and refilled brake fluid reservoir with new fluid containing lubricant.
Symptom was the brake pedal squeaking. The fix was to replace the brake power booster.
Squeak from brake pedal, especially when cold. Dealer identified TSB which indicates problem with brake fluid. GM supposedly is developing a revised brake fluid to correct the problem, but not available yet.
Dealer says revised brake fluid still not available from GM to fix the problem.
Squeak coming from master brake cylinder when applying brakes. Dealer located TSB and replaced brake fluid with revised fluid per TSB.
Messages saying stabilitrak off and service brake system. Dealership said brake fluid was low and could not find a leak.
Messages saying stabilitrak off and to service brake system. Dealership said brake fluid was low and to bring it back in 3 weeks for them to check fluid level again.