Equipment Problems of Chevrolet Blazer - part 2

Action required steering assist reduced and coolant temperature at 0. Air con blowing hot and check engine light on. The vehicle became hard to handle and keep in my lane on the interstate at high speeds. The problem has persisted. It has not been recitfied. I am not driving the car to avoid damage and danger. I bought the Blazer on 1/6/26. The lights and issues began 8 days later. Dealership will not help me. 2020 Blazer rs awd bought from morgan city Toyota louisiana.

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2020 chevy Blazer thermostat isn't operating correctly.

The keyless entry and start system intermittently fails to detect the key fob, preventing the vehicle from starting, locking, or unlocking. On one occasion, a "service keyless start system" warning appeared on the dashboard while the vehicle was being driven at 75 mph on a highway. The driver was unable to safely stop and feared the vehicle would become inoperable in traffic if turned off. The issue first occurred on January 1, 2026. Both key fobs were tested with new batteries — both exhibited the same failure, indicating the defect is in the vehicle's key detection system, not the fobs. Roadside assistance confirmed this was an ev-specific system issue they could not resolve. The vehicle was taken to an authorized Chevrolet dealership for repair. It was in the shop for approximately 5 days. The dealership performed a full system upgrade and completed safety recalls but stated they could not replicate the key detection issue. Within approximately 30 minutes of picking up the vehicle after the first repair, the "service keyless start system" warning reappeared while driving at highway speed. Two days later, the vehicle completely failed to start, lock, or unlock, displaying "no key found" with the battery at 100% charge. The vehicle was towed back to the same dealership for a second repair attempt. During the second escalation, the manufacturer's ev support team noted that the manufacturer's internal system showed safety recalls still appearing as open, which appeared inconsistent with the dealership's paperwork from the first visit claiming those recalls were completed. The vehicle has been serviced twice for this defect. The component — the keyless entry/start detection system is available for inspection. The intermittent nature of the failure makes it especially dangerous, as the driver cannot predict when the vehicle will become inoperable. This defect poses a serious safety risk if the vehicle loses key detection while being driven at highway speeds in traffic.

See all problems of the 2024 Chevrolet Blazer 🔎.

1) part that failed per general motors Chevrolet dealer was the thermostat along with coolant sensor. 2) I was getting warning notices on dash board screen stating (reduced steering assist) I was also getting a esc warning 3) problem has been repaired at gm dealer 4) parts were replaced by gm dealer/service center 5) esc warning light that came on for a short time after motor stopped for auto stop / start and then restarted. If auto stop / start was turned off esc warning did not come on. Reduced steering assist warning would come on but then go off. Finally the service engine light came on and stayed on. 6) gm service stated code for engine light was p01f0. Autozone read a p0128 code. 7) from investigating online this seems to be a very common problem with the 2019 and 2020 Chevrolet Blazer with the 6 cylinder engine. Note: I believe this should be a warranty repair due to the fact that 1) this is a known issue with the 2020 Blazer and known poor design 2) the warning about reduced steering assist and 3) esc warning.

To whom it may concern, I am submitting this complaint regarding my **2024 Chevrolet Blazer** and the handling of my case by gm, gm financial, and affiliated dealerships. In *-zero temperatures**, the heating system in my vehicle completely failed while I was transporting my **newborn child**, creating a serious safety concern. I immediately sought assistance at **moran Chevrolet**, where I was denied service, told no loaner vehicles were available, and advised to continue driving the vehicle despite the dangerous conditions. Out of necessity, I drove over * miles** to * serra Chevrolet**, where my vehicle was finally taken in. I was provided a *-powered loaner** and was explicitly told that fuel expenses would be covered through * executive concierge**. Unfortunately, my experience with gm concierge has been unacceptable. I was assigned a representative but have **never spoken to her live**, despite numerous calls and clear communication of my availability. I have spent **hours** attempting to obtain reimbursement and assistance, without resolution. My vehicle is now **back in the shop**, and this matter remains unresolved. Additionally, although I have paid my vehicle payment to remain current, I am requesting **reimbursement of this payment**. This expense was incurred as a direct result of gm’s failure to provide timely service, a comparable loaner, and effective concierge assistance during a documented safety-related vehicle failure. I paid under necessity to mitigate further harm, and reimbursement is appropriate to fully resolve this matter. I am requesting: • reimbursement for fuel expenses related to the loaner vehicle • reimbursement of the vehicle payment made under necessity • a written explanation for the concierge communication failures • assurance that safety-related failures are handled promptly • confirmation that this complaint has been escalated.

Thermostat issues, gives warning steering assist decreased and then eventually check engine light, vehicle thermostat does not react/reach normal temperature, fan continues to blow after car is turned off for 5-15min, ac does not blow cool air or warm if heat turned up.

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My 2021 Chevrolet Blazer experienced a radiator failure at approximately 42,000 miles. The radiator and cooling system malfunctioned, causing coolant loss and triggering a warning light on the instrument panel. The failed radiator is available for inspection upon request. This defect put my safety and the safety of others at risk because a compromised radiator can lead to engine overheating, sudden loss of power, or even steering assist reduction while driving. These conditions increase the likelihood of an accident, particularly at highway speeds. The problem was confirmed by my Chevrolet dealer, who diagnosed the radiator as needing replacement. They initially quoted $1,800, later reducing the cost to $915. 90 after acknowledging that approximately 20 customers per month at their dealership alone are experiencing the same issue. This indicates the defect is widespread, at least regionally, and may be systemic across the model. The vehicle has been inspected by the dealer service department, which is an authorized gm representative. No police or insurance inspection has occurred. Prior to the failure, a warning lamp illuminated on the instrument panel, alerting me to a cooling system issue. This was the first symptom I noticed before bringing the vehicle in for service. I believe this premature radiator failure represents a systemic defect in the 2021 Chevrolet Blazer’s cooling system. It occurred well within the 5?year/60,000?mile warranty period, yet the dealer claimed the radiator is not covered. I am requesting NHTSA investigate this issue, as it appears to affect many owners and poses a significant safety risk.

Steering assist reduced message, then no ac, temp gauge stuck at cold, p0128 error code.

See all problems of the 2019 Chevrolet Blazer 🔎.

The thermostat is stuck open and needs replaced. If left as it is, could create overheating issues for the engine and even more damage. A service engine light was illuminated prior to finding the issue. The light was accompanied by a warning about assisted steering. Two days after the light first came on, a Chevrolet service department diagnosed the problem and is repairing it. An invoice can be provided at a later date once repairs are completed.

Shift to park issue. Vehicle shifts into park but does not register as such. Therefore, the vehicle keeps running and will not turn off or allow you to exist the vehicle. This is already a know issue with certain gm vehicles as is evident by a recall and service bulletins. However, none of those include the 2020 chevy Blazer.

When I try to park the car, it says shift to park. Sometimes I can’t get the car to go into park to exit the vehicle or other times. I’ve shut the door and it has stayed on with the accessories because it won’t shut off.

Vehicle thermostat would read cold while operating and the ac was not working. A message would populate in the dash stating "steering assist is reduced drive with care. " multiple forums stated it was a thermostat issue or temperature sensor. Also attempted to disconnect the battery for several minutes which would in turn clear the message and all would be working fine. This has been done multiple times and is at random when the message and ac stop working.

The onstar is out, cant make a call to them, cant remote start on app, navigation doesnt work.

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Request for recall review – 2021 Chevrolet Blazer steering assist and cooling fan issue hello, I am writing to report a recurring issue with my 2021 Chevrolet Blazer and to request that this concern be reviewed for possible recall or warranty coverage. The vehicle frequently displays an “action required: steering assist is reduced. Drive with care” message while driving. Additionally, after shutting off the vehicle, the engine cooling fan continues to run for up to 20 minutes, as if the vehicle is overheating. This issue has occurred multiple times and raises concerns about potential problems with the steering assist system, cooling system, or electrical sensors. I’ve noticed that other Blazer owners have reported similar experiences online, which suggests this could be a broader issue. Could you please confirm whether there are any existing recalls, technical service bulletins (tsbs), or warranty programs addressing this condition? I would also appreciate guidance on the next steps for inspection or documentation. Vehicle information: year/model: 2021 Chevrolet Blazer.

Unknown…. Cut open my shin (leg) on the bottom corner of my driver’s door (black plastic side molding). That part is sharp! required er with 14 stitches on 9-24-25. As of today I’m still recovering.

See all problems of the 2022 Chevrolet Blazer 🔎.

While driving an alert came up "adaptive steering limited, drive with care". At the same time, my ac stopped working a d my thermostat dropped to cold and will not move from there. From searching online, this is a common and known issue with chevy suvs yet there is no recall or attempt to correct.

My transmission is leaking fluid and has trouble going in reverse. This model has had two recalls in 2020 and 2021 with the one from 2020 was specifically for missing parts on the transmission causing leaks. My car is under the mileage for the transmission to even be a problem as stated by multiple mechanics. If there was a recall why wasn’t I informed before the transmission began to leak. The is serviced regularly by dealership where car was purchased. My safety is important to me but I guess not to Chevrolet because I mever was told about a possible issue with the transmission. So I hope yall take notice and do the right thing.

Increasing speed by itself, let foot off gas pedal and gas pedal sticking, 1st time I tapped brakes and it quit. 2nd time it did not. I had to slam brakes and hokd until the point they had overheated and smell burnt and filed a separate complaint for that today. Gas pedal sticking and self accelerating. Pedal to the floor accelerating. I do not drive like that and scared the hell out of me. I bout it 5 days ago from a Chevrolet dealership. I'm tired of rip offs. Next one best be brand new and they reimburse me for outside mechanical I inspection period. Bc I trust no dealer now. Went from 7p to about 95 in 10 seconds for 10 min. Not sure what braking did bx I coukd care less about the phone whike I am trying not to hit cars in front of me literally almost jammed an 18 wheeler and moving truck with me pushing the brakes as gmhard as I could.

Left turn signal can activate by itself after right turn. Details: driving and making a right turn with the right turn signal active, after the turn when the signal cancels, the signal sometimes activates the left blink-to-pass feature causing the left signal to blink 3 times. This appears to be because the turn signal arm falls too hard. When turning onto a multi lane road this causes confusion to drivers coming up behind where they think I am moving into the left lane, but I am not. Gm has loaded software to reduce this but it still happens. They replaced my turn signal arm and it still happens (much less often now). I can prevent it from happening by using my finger to dampen the turn signal arm when it cancels by catching it and slowing it down. I stopped using my turn signal completely as it is embarrassing when it does this.

My vehicle is roughly 40k miles. The temp gauge was stuck on c the cooling fan was running continuously even when the car was off and the checked engine appeared. The mechanic at the dealership said the thermostat is stuck in open position causing the computer not to know if the engine is cooling properly. For a vehicle less then 5 years old with upkept maintenance and doing a bit of research. . . This is a common occurrence in chevy vehicles. Therefore, the manufacturer needs to look into recalling this issue costing people thousands of dollars. This was my first chevy and probably my last.

Shift lever to park alert on dashboard. Paid to have shift lever replaced on Blazer. Also had same problem on 2018 malibu. . Paid myself to have shift lever replaced! I was never notified about a class action suit. I believe this is a major problem on gm vehicle. Need gm to have a recall!.

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. Nhtsa 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.

See all problems of the 2023 Chevrolet Blazer 🔎.

Transmission & engine failure. Press the gas and it doesn’t move the car-feels as if it is trying to change gears and it isn’t working. Car under warranty & still not working. Been to the dealership multiple times and they are unable to fix the issue. No warning signs.

Similar to the bulletin no. : pip5681c the flex pipe bracket is cracked on my 2020 chevy Blazer this causes rattling and whining noises due to the part rubbing against where it was previously connected.

There is a really bad rattling noise that comes from the dash. The dash at the windshield you can push down very easily. Whem driving on rough road the ratteling noise is very loud and distracting. During daylight driving you get a very bad glare from the dash board in the windsheild. I havent found a dash mat yet to fox the problem temporarily but some people have mentioned trying felt.

I am reaching out regarding an ongoing issue with my 2021 Chevrolet Blazer. The vehicle is experiencing a noticeable stutter or hesitation when shifting between second and third gear. In addition, there are instances where the vehicle accelerates unexpectedly or more aggressively than intended. This behavior is particularly concerning, as it presents a potential safety issue during normal driving conditions. These concerns have become increasingly noticeable, and I am concerned they may indicate a transmission or related mechanical problem that requires prompt inspection and resolution. Please advise if there are any known service bulletins, recalls, or warranty coverage related to these issues. For reference, the vehicle has been properly maintained and this behavior is not consistent with normal operation. Given that this is now the third major issue I’ve experienced with this vehicle, I am hoping this matter can be addressed without additional out-of-pocket expense. After additional research, I have learned that other owners have experienced the same issue. Others have stated the following: 1. Hesitation, stuttering, or jerking between gears owners of 2020–2021 Blazers report hesitation and jerking during acceleration, sometimes described as gears “shifting in and out rapidly. ” forum users mention sluggish shifting or slipping feelings, especially at certain speeds. Others report hard or delayed shifts at low speeds (like 15–25 mph). 2. Shuddering / vibration (often tied to torque converter) there are repeated mentions of “shudder,” “surge,” or vibration during acceleration. Some cases were linked contaminated transmission fluid torque converter clutch (tcc) issues one owner said the problem felt like a bad torque converter and required service attention. 3. Unexpected acceleration / lunging drivers across gm vehicles (including similar transmissions) report: “jerking,” “bucking,” or “lunging” during acceleration some describe needing to.

Recall n252503010 / 25v433 – 2024 chevy Blazer ev. Dealer cleared my VIN after only a visual “inspection” and later applied software updates. The official remedy requires rerouting/taping or replacing the brake harness, not software. My VIN was falsely marked “recall complete” while the safety defect remains unresolved.

The temperature gauge or thermostat has been replaced 3 times and continues to fail.

Warning message flashes "put car in park" after putting it in park and pushing the stop button. It flashes for a few minutes, beeps the horn alert, and you can't lock it . It was diagnosed at a chevy dealership as needing new switch and jumper harness at almost $800.

The front camera lens cover — located in the grille below the chevy bowtie logo — has developed a spiderwebbed/shattered crack pattern. There is no impact damage to the surrounding grille or bodywork. The vehicle was garaged and not in use when the damage was discovered. The camera appears to still be working and parts of the image are crystal clear but the cracks in the cover distort the picture and make it impossible to use reliably. This is consistent with a material defect, not road damage. I have opened a case with gm customer care regarding this defect. My case number xxx. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Shifter assembly and harness when putting vehicle into "park" and then shutting off the vehicle a warning message would appear that the car had to be placed into park and a beeper would sound. Never sure if vehicle is actually in park. Have to restart the vehicle, move the parking gear from park, then back into park until message does not appear. This issue was a recall for the 2013-2019 chevy Blazers, but was not recalled for the 2020 Blazer, although it appears that this is still an issue. Had issue repaired by paying for the replacement of this shifter assembly.

At routine oil change dealer noticed radiator was leaking. 60,840 miles took it to an independent repair shop who confirmed radiator needed to be replaced. Has also seen same on other 2021 Blazers. No visible signs of leaking (fluid on garage floor) or warning indicators. No recall issued on this, however, seems to be a common problem on 2021 Blazer based on chevy forums. Due to safety issues, vehicle is currently in shop for the needed replacement repair.

When you shift to park it tells you shift to park and you can't turn the car off.

The car does not sense when it is put into park. The alarm continues to ding and the car will not turn off . It displays a message stating shift to park.

When I come to a stop, in an attempt to park, I will shift into park but a message will appear on my dash saying to shift to park this prevents me from shutting off the vehicle. The issue is persistent at times, but happens intermittently.