Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings (Cadillac and Chevrolet)
Vehicle recall 04V-525. NHTSA received GENERAL MOTORS CORP.’s report on Nov 3, 2004.
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The short answer
NHTSA received GENERAL MOTORS CORP.’s report on Nov 3, 2004. Copied from NHTSA on Oct 20, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
IF THE BRAKE FLUID BOILS IN A REAR BRAKE LINE, THE EFFECTIVENESS OF THE REAR BRAKE SYSTEM WOULD BE REDUCED WHICH COULD RESULT IN A BRAKE LINE LEAK AND LOSS OF BRAKE FLUID. IF ENOUGH FLUID LEAKS FROM THE REAR BRAKE SYSTEM SO THAT BRAKE PEDAL APPLICATION CAN NO LONGER BUILD PRESSURE TO THE REAR BRAKES. THE OPERATOR OF THE VEHICLE WILL EXPERIENCE LIMITED BRAKING WHICH COULD RESULT IN A CRASH.
CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH ONE OR BOTH REAR BRAKE HYDRAULIC LINES THAT CAN COME IN CONTACT WITH OR BE AFFECTED BY HEAT FROM THE LEFT ENGINE EXHAUST MANIFOLD AND THE LEFT EXHAUST PIPE.
THE BRAKE FLUID COULD REACH ELEVATED TEMPERATURES AND BOIL.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- NHTSA’s part: Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings.
What should you do?
DEALERS WILL (1) INSPECT THE LEFT ENGINE EXHAUST MANIFOLD CLIP FOR PROPER ALIGNMENT AND PLACEMENT ON THE BODY-MOUNTED STUD. IF INCORRECT, THEY WILL REPOSITION THE CLIP ON THE BRAKE LINES AND REINSTALL THE CLIP ON THE STUD; (2) THE DEALER WILL VERIFY THAT BOTH REAR BRAKE LINES HAVE THE PROPER CLEARANCE TO THE LEFT EXHAUST PIPE. THEY WILL REPOSITION THE LINES BY BENDING AS NECESSARY; (3) DEALERS WILL REMOVE THE MACHINING TAB FROM THE REAR DIFFERENTIAL HOUSING. ALSO, DEALERS ARE TO INSPECT THE BRAKE LINES FOR WEAR IN THESE RELATED AREAS AND REPAIR OR REPLACE IF THERE IS ANY SIGN OF WEAR-THROUGH ON THE NYLON OVERCOATING. THE RECALL BEGAN ON JANUARY 18, 2005. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2239 OR CHEVROLET AT 1-800-630-2438.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- How to reach the firm: GENERAL MOTORS RECALL NO. 04086.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION’S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 5,225 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- Cadillac XLRand 2004 and 2005, before the model years listed here
- Chevrolet Corvetteand 2005, before the model years listed here
Who is recalling it?
- Made by GENERAL MOTORS CORP..
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 20, 2026 and checked Oct 20, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 20, 2026.