2023 Chevrolet Blazer 42334 miles 9/18/2026 Component failed: 2023 Blazer RS eBoost system. Integrated electronic brake booster / master cylinder / brake pedal sensor assembly. Component available for inspection. Same left front corner had frozen caliper FRC13443C at 37,940 miles June 2025 to pass inspection, sold as certified at 38,038 miles. Vehicle currently 42,334 miles. Safety risk: Hard brake pedal, loss of brake assist, increased stopping distance. Same condition reported before front collision August 2025. Left front remains hot. Driver scared to drive. the federal safety agency EA26006 open for eBoost 2023 Blazer describes same failure - spindle fracture, loss of ABS/stability, 21 crashes. Reproduced/confirmed: Yes. Independent shop A+ Automotive RO 82780 Sept 15 2026 confirmed hard pedal remains after full bleed, measured 8mm front/rear. Second shop Sept 17 2026 confirmed system is all-wire eBoost, no vacuums, no vacuum leaks possible. Dealer Sept 16-17 2026 stated "checked vacuum on the brakes no leaks" and "pedal fine braking normal" on eBoost vehicle that has no vacuum. Inspected by others: Manufacturer not yet. Dealer inspection 09/16-17/26 misdiagnosed as vacuum issue. Independent inspections A+ Automotive 09/15 and 09/17/26 confirmed eBoost no vacuums and hard pedal remains. Warning lamps/messages: No warning lamps. No ABS light. Symptom is hard pedal that feels like manual brakes without assist. Also left front heat. First appeared June 2025 as frozen left front caliper, returned as hard pedal after bleed. Dealer claimed normal operation.
Chevrolet Blazer spongy pedal problems
34 of the 8,038 owner complaints about the Chevrolet Blazer describe soft or spongy brake pedal, most of them for the 1995 model year.
- owner complaints
- 34
- worst model year
- 1995
By model year
Often reported together
ABS 15Brake failure 6Grinding brakes 3Wipers 1Misfire 1Jerking 1Fuel pump 1Knocking 1
What owners say
1998 chevy blazer does not brakes do not pump up and hold they are spongy.
Brake pedal went to floor very slowly. Repaired brakes with all new components; rotors, pads, calipers, new brake fluid. Bled brakes and pedal is still very spongy and pedal will still go down to floor after stopping. Car will not move if you hold the pedal down. Found several complaints on line about spongy brakes on chevrolet cars.is there a problem that I can not find for these cars?
Abs light came on, then brake light came on. When I tried to stop I almost rear-ended car in front of me because brakes were not properly working. Brake pedal was hard to push down. Happened twice within 4 blocks of my home and I have not driven vehicle since even though a mechanic told me it should still be safe to drive. I had new brakes (including parking brake repairs) and new bearings done less than 2 years ago. I spoke with a chevy mechanic who told me modifications had been made to 99 blazer ABS because of problems. We have owned this vehicle since late 1999/early 2000 (it had 16,000 miles when we purchased it) and have never received notice of this problem. We also have had additional problems with electrical system (dealer repaired), the wheel bearings as stated above, and the seat reclining levers breaking off (which dealer repaired once but then would not repair again). While checking the internet regarding this problem I found reference of a recall for the ABS in 1999. I do not believe it was corrected on this vehicle and also there was no mention of recalls when we bought it from the dealer in 1999/2000.
Consumer stated that while driving and without warning, the egr valve failed, which caused the brakes to fail. Dealer notified. *ak the mixing with the fuel was the biggest problem. (when there was carbon build up in the egr valve, it would leave it open and caused no vacuum hard pedal and brake failure. When it rained or was cold the truck ran rough. The service light came on when the vehicle had run rough more than once, noise was present and there was a smell of burnt wires and the ignition switch was replaced, the brake pedal seemed soft on more than one occasion and the master cylinder and other brake components were replaced to try and solve the problem, the cd player had not worked since the ignition switch was changed, the rear windshield wipers had become inoperative, a noise would occur when turning but was not duplicated, and the muffler tail pipe had fallen off and rusted due to carbon build-up. The egr valve was cleaned but the problem persisted. The mechanic stated that in order to perform a proper job, the excessive carbon build up in the upper and lower intake manifold which effected the egr pendel, and the 02 sensor could cause a problem with the exhaust system, catalytic converter, fuel pump, the brakes, etc. The brakes squeaked, there were no dash lights, no air conditioning, and no 4-wheel drive. The fuel injections needed to be checked, and there were two recall stickers on the engine. *scc the rear wiper motor, fuel injectors and brakes were replaced.
Have done everything that I know of to correct the problem. Braking system is still spongy after turning the rotors and drums, installined new pads , and bleeding the front brakes. As far as I know, all recalls have been performed. At the moment it is an accident waiting to happen. Any other complaints about the brakes on 95 blazers? What can I try next? Thanks.
Brake pedal feels spongy, goes almost to floor when applying brakes. Dealer stated this was a trait of blazer, and nothing was wrong with brakes, braking distance normal. *ak
Recall 99v193000/ABS: vehicle experiencing intermittent problem with soft pedal and fading brakes. Vehicle taken to independent repair shop and informed consumer that left rotors were pitted/ corroded. Both rotors and pads were replaced at consumer's cost. Dealer / manufacturer notified, and informed that vehicle was not covered under a recall.
Brakes spongy, inability to stop in proper manner, almost in 3 accidents this past weekend, this will be my 4th set of brakes in 26,000 miles, I don't know if it is the ABS that is causing it, because no one can find out what the problem is, master cylinder replaced, tires are still bad from the day I purchased auto, I have 2 dealerships telling me two different stories, no one can fix auto, gm will not respond to complaints of this safety issue, they brush it off, the system is bad, and they will not correct the problem.
Vehicle braking has seemed to be unpredictable. Abs will seem to take over when unnecessary under normal braking situations causing unexpected extended braking distance. We were informally told by several mechanics that that is just how ABS is so we assumed that it was just a poor design not covered by any warranties for the second owner so we did not pursue it further. In addition, we had a rough running condition that was diagnosed as the egr valve clogged with carbon deposits. The engine idled rough, had a strong odor and had intermittent brake failure (hard pedal) causing it to be very difficult to stop. We had the engine "motorvac'd" to clear carbon deposits and had the egr cleaned. It ran well for about a week then back to the same symtoms. We were told it would just ruin a new egr if we replaced it again so we have not determined what to do with it. Also the "check engine" light comes on and off throughout these episodes
Related recalls
Service brakes, hydraulic: antilock/traction control/electronic limited slip
- What is wrong
- Vehicle description: s -trucks equipped with 2 wheel drive. These vehicles may have had the right-hand antilock brake system (ABS) module feed pipe and/or brake crossover pipe tube nuts tightened without seating the pipe-flared-ends enough to withstand normal assembly and vehicle inputs without partially unseating. This does not comply with requirements of fmvss no. 105, "hydraulic service brake normal, emergency, and park braking performance."
- Risk
- If this occurred, the seating seal could be broken during vehicle assembly, or from early road inputs or brake fluid cycling, and a leak could occur increasing the brake stopping distance.
- Remedy
- Dealers will inspect the brake pipe union for signs of brake fluid, and if necessary, install a new brake pipe union.
Recall number 99V220000 · Recall details
Service brakes, hydraulic: antilock/traction control/electronic limited slip
- What is wrong
- Vehicle description: certain 4-wheel drive pickup trucks and sport utility vehicles equipped with ABS (antilock braking system) manufactured from september 1989 through august 1996. Under certain driving conditions the switch which signals the ABS system whether the vehicle is in 2-wheel or 4-wheel drive can malfunction causing increased stopping distances during ABS stops while in the two-wheel drive mode.
- Risk
- If this occurred at a time when minimum stopping distance was required, a vehicle crash could occur without prior warning.
- Remedy
- Dealers will replace or repair the 4-wheel/2-wheel drive switch.
Recall number 99V193000 · Recall details
Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings
- What is wrong
- Vehicle description: light duty pickup trucks and multi-purpose passenger vehicles. A fatigue fracture of the rear axle right-hand brake pipe can occur causing a slow brake fluid leak resulting in a soft brake pedal. If the brake pipe breaks, the driver would experience a sudden drop in the brake pedal, the instrument panel brake light would illuminate, and there would be a loss of rear brake performance.
- Risk
- Partial loss of braking at a time when minimum stopping distance was required could result in a vehicle crash.
- Remedy
- Dealers will inspect and replace the brake pipe.
Recall number 97V218000 · Recall details
Service brakes, hydraulic: pedals and linkages
- What is wrong
- The brake pedal pivot bolt was started in the weld nut, but was not torqued correctly causing the bolt to disengage from the weld nut.
- Risk
- This condition can result in a total loss of brakingcapability.
- Remedy
- Dealers will inspect for hand-started brake pedal bolts and torque them to correct specifications.
Recall number 94V242000 · Recall details
Service brakes, hydraulic: foundation components: disc: rotor
- What is wrong
- Severe corrosion due to road salt at the joint of the stamped steel center section and the cast outer section can cause the sections to separate.
- Risk
- Separation of the rotor sections can cause loss ofbraking ability in the affected wheel. This could result in increased stoppingdistance and/or loss of vehicle control and an accident.
- Remedy
- Replace the front brake rotors with new rotors with a corrosion protection coating. However, if replacement of brake linings are necessary, it will be done at owner's expense since brake linings are normal maintenance items.
Recall number 93V119000 · Recall details
Questions about the Chevrolet Blazer spongy pedal
Which Chevrolet Blazer years have soft or spongy brake pedal problems?
The model years with the most reports are 1995 (11 complaints), 1996 (6 complaints) and 1994 (3 complaints).
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