Let me tell you, the electric drive is like that one friend who’s always calm and collected, no drama, no noise, just smooth vibes.

BHPian HHHkumar recently shared this with other enthusiasts:

I’m trying to pen down a review ever since crossing 10K kms, after crossing 15,000 Kms here I go,

A few months ago, I penned down my buying saga and first impressions of the Tata Tiago EV (you can read it here). Fast forward a few months, and after clocking 15,000 KMS, here I am happy, and surprisingly, still a fan of this little electric car.

Let’s get the suspense out of the way: the experience has been shockingly smooth (pun intended). The Tiago EV is performing like a champ, though there have been a few "meh" moments that left me scratching my head because, hey, no car is perfect, right?

So, it’s been 8 months, and let’s be honest the honeymoon period is officially over. The real question is: how does the car hold up in the daily grind?

Well, let me tell you, the electric drive is like that one friend who’s always calm and collected, no drama, no noise, just smooth vibes. And when I say smooth, I mean butter smooth, the kind of smooth that makes you wonder why gears were even invented in the first place.

Driving it feels like gliding on a metro train, minus the crowd and awkward eye contact with strangers. The brisk acceleration is borderline addictive, and the absence of gear shifts? Oh, it’s a game-changer in stop-and-go traffic. It’s like the car is whispering, “Relax, I’ve got this,” while you cruise along stress-free.

This electric car technology is lightyears ahead in NVH levels compared to a traditional ICE vehicle both inside and out. Seriously, it’s like stepping into the future, where noise, vibration, and harshness are just urban legends.

But here’s a thought: when every vehicle on the road is electric someday, what’s a traffic jam going to feel like? No roaring engines, no pungent exhaust fumes just the gentle hum of motors and, maybe, the occasional frustrated honk. Will it feel eerily peaceful, or will we just invent new ways to be annoyed?

Hopefully, the technology evolves fast enough for us to witness that day or will we even be in the driving seat by then? Maybe self-driving cars will handle the daily commute while we binge-watch yet another show. Heck, will people even go to offices anymore? Who knows time’s got all the answers, and it’s not spilling the beans just yet.

Alright, let me rein in my excitement and get back to the car I’m actually driving. Now, let’s address the elephant in the room: the range. What’s the range I’m getting out of this car?

Well, it’s surprisingly good. Or maybe this little car with its tiny battery has somehow turned me into a super efficient driver. I’ve mastered the art of coasting like a pro, swapped mechanical brakes for regenerative braking, and embraced the thrill of driving at... let’s call it “leisurely” speeds just slow enough to annoy my wife and urge me to hurry up.

Addressing the elephant in the room, Range:
I’m getting around 200 KMS with about 20% to spare. That translates to about 2.5 KMS per 1% of State of Charge (SOC). Not bad for a car that looks like it’s running on a couple of AA batteries, right?

I’d say around 90% of the time, the range falls in this ballpark of about 2.3 to 2.7 kms per 1% of SOC with AC (Econ ON). But, let me also share the absolute best and worst ranges I’ve had so far. Back in July, with the monsoon winds cheering me on and the temperatures in the cozy 25-26°C range (plus no sun thank you, clouds!), I managed to get a whopping 2.85 kms per 1% of SOC. I covered 175 KMS from Ilkal to Raichur, Karnataka, with 40% to spare. And let’s not forget, I did all this with an average trip speed of a thrilling 45 KMPH because sometimes, slow and steady does win the range game!

My absolute worst range experience occurred during this trip: five adults packed into the car, battling 36°C heat on a scorching afternoon, en route to Mantralayam, 60km away. I rely on mental SOC milestones: 90% for 22+ km, 80% for 45+ km, and 70% for a reliable 70+ km. However, at 70% SOC, I'd only managed 60km. Despite efforts to conserve energy, I finished the trip with a mere 130km total and 25% SOC remaining – a dismal 1.7km per 1% SOC. The next day, I discovered a nail in the front tire, reducing pressure to a mere 10 PSI. This explained the drastic range reduction.

Now, let’s talk about the long journeys with this car. I’ve made the trip from my hometown of Shivamogga to Shaktinagar, Raichur more than once, a solid 450 KMS. The journey takes me about 12 hours, including two charging and food stops. Now, in comparison, my old ICE car would’ve done the same trip in 8-9 hours. So, yeah, you could say the EV is a little more relaxed about the whole "getting there quickly" thing.

Mileage as KM/KWH:

I’ve come to realize that KM/KWH figures tell a far better story about a car’s efficiency and, let’s be honest, my driving skills than those dry AEC readings.

Now, seeing the electric Creta flaunting some fantastic numbers, I thought, Why not see how my Tiago EV stacks up? So, off I went, calculator in hand.

Trip 1: Dharwad to Hospet:

• Distance covered: 165.8 KM
• Battery left: 37%
• The math: 165.8 KM / (24 kWh × 0.63) = 10.96 KM/KWH
• It was a smooth highway drive, early morning, no AC. My Tiago EV practically whispered down the road. Pretty impressive, I’d say!

Trip 2: Hospet to Raichur:

• This leg was... an experience. Picture roads that feel like they’ve been carpet-bombed, sprinkled with endless speed breakers, rogue bikers zigzagging like it’s a video game, and the last 60
• KM resembling a lunar surface.
• Distance covered: 189.5 KM
• Battery left: 20%
• Calculation: 189.5 KM / (24 kWh × 0.8) = 9.86 KM/KWH

With the AC set to 26°C and temperatures outside blazing at 35-37°C, I’d say my Tiago EV deserves a medal or at least a celebratory car wash.

So, apparently, I'm now enjoying long drives. Is this what a mid-thirties crisis looks like? Since I've become the "Man of the House," which basically means I need spousal and small-human approval for any outing. Impromptu adventures? Nope. Attending a few last bachelor friends' weddings? Definitely not. The bachelor fun has officially expired, replaced by the soul-stirring rhythm of adulthood. Even my parents are in on it, reminding me that I should be more responsible. My life is now a non stop thrill ride of work, home, family, the weekly shopping, and the diaper changing marathon. Who needs adrenaline when you've got this?

Continue reading BHPian HHHkumar's review for more insights and information. 

This car has been an excellent city runabout with effortless steering and a smooth driving experience. The goal is to keep it for at least 2 lakh km before considering an upgrade.

BHPian thearclight13 recently shared this with other enthusiasts:

Buying an EV wasn’t an easy decision, especially after reading mixed reviews about Tata’s service. But after much thought and research, we took the plunge and brought home the Tiago EV LR 2024 on March 4, 2024, from SP Motors, Goa. This is my first post on TeamBHP, and I’m excited to share my long-term ownership experience!

Our Car Ownership Journey
At 28, I’ve been lucky to own and experience multiple pre-loved cars—mostly DIESELS:

1. Hyundai i20 1.4 CRDi (2013) – Our new car; met with a major accident in 2016 and was declared a total loss.
2. Škoda Laura 1.9 TDI L&K (2009)
3. Ford Fiesta 1.4 TDCi (2009)
4. Swift Dzire DDiS 1.3 (2012)
5. Honda Amaze 1.2 i-VTEC (2013, Petrol)
6. Volkswagen Vento 1.6 TDI (2013)
7. Honda Jazz 1.5 i-DTEC (2016) – Still in my garage.
8. Suzuki Brezza 1.3 DDiS (2016) – Still in my garage.

Always been a Diesel fanboy! (Not sure about BS6 regulations though)

Why Tata Motors?

Growing up, Tata’s Indica Diesel was a common sight, known for its affordability and spacious cabin.

Over the years, Tata Motors has come a long way. After watching countless reviews of Tiago EV and speaking with existing owners, we decided to support an Indian automaker—and this time, we went electric!

Why an EV?

Being in the marine service sector in Goa, I drive around 3,000-3,500 km per month, mostly within the state. Few weekend trips to Belgaum, Karnataka, are my only outstation drives with the EV. Given the rising fuel costs, switching to an EV made perfect sense for my driving needs.

Service Experience

My Tiago EV has been serviced regularly at SP Motors, Verna, Goa. Thankfully, there have been no battery or motor issues so far:

• I typically get 200-225 km per charge, though the range drops slightly in extreme heat (35-37°C) or hilly areas.
• The car has completed 37,000 km and undergone five services.
• I missed the 22,500 km minor service due to unavailability of service slots. Since then, I make sure to book my next service in advance, as waiting times can be 1.5-2 months.

Running Cost & Savings

I won’t go into detailed electricity cost breakdowns, as it varies by state. But one thing is clear—switching to an EV has saved me a lot on fuel expenses!

Car Modifications

So far, I’ve kept modifications minimal to avoid warranty issues:

1. Tan & Black seat covers (Innova Crysta style, stitched by a local vendor)

2. Armrest (Bought from Amazon)

3. Philips LED lights (Upgraded parking and number plate lights)

Accidents & Mishaps
1. July 16, 2024 – A minor accident when a biker (who happened to be a close friend) rear-ended me during a sudden stop. Repaired at Autoserv, Verna.

2. Pothole Incident – On my way back from Belgaum, I hit a deep pothole, resulting in a rim dent and lost wheel cap. Replacing the cap cost a whopping Rs. 2,400 and took seven days to arrive from the authorized spares dealer.

3. Dings and Dents - A mango tree came crashing down on the bonnet & roof causing a small dent, random bike parked besides my car managed to put a dent on the right side drivers door.

4. Due for a Polish – After a year of use, the car could use a professional detailing job

Continue reading BHPian thearclight13's review for more insights and information.

Small design changes in grill - keeps up with the family look. Trim below grill now gets a matte gunmetal finish instead of the cyan.

BHPian thomahawk recently shared this with other enthusiasts:

Visited an EV store for an Evolve event and got a look at the Tiago EV facelift. Love the new 'Chill Lime' color in dual tone.

Exterior:

Not much has changed except for few updates on the grill, position of the antenna and new wheel covers. I feel the car looks quite dated for an EV - wish they updated the lamp clusters and added connected lights similar to the rest of their EV portfolio.

Small design changes in grill - keeps up with the family look. Trim below grill now gets a matte gunmetal finish instead of the cyan. Think this looks better and gels well with all colors compared to the cyan. Notice the missing fog lamps. Fog lamps are no longer standard fitment. Accessory catalogue for EV is not yet available with dealer hence not sure if this can be fitted without voiding warranty. There is a blank in the central console - where the fog lamp button used to be, so I'm hopeful that this will be an accessory.

New LED headlamps design is basic, can easily mistake this for a halogen unit:

Lower variants gets halogen - no changes here:

Antenna is now in the rear for all variants - so one can still swap this for Shark fin:

Top variant gets Shark fin antenna:

New design for wheel - matte instead of glossy. Love this:

Lower variants gets a different design for the wheel cover:

I loved the Arizona blue (similar to Nexa Blue) and Chill lime, Grey and white looks OK. Teal Blue (missing here) and Supernova copper didn't appeal to me (I feel this is a yucky color - but lot of folks I talked to, seemed to be OK with it):

Interior:

Colorway change in dashboard and door trim. Think I like the new light grey color. Reflection on windshield seems to be worse now though. Love the steering wheel from Punch - looks modern. Photochromatic mirrors are no longer standard. Might be available as an accessory (used to available earlier).

I believe the MID was updated at some point prior to the facelift; I am not a fan of this (or the older one). Looks very dated on an EV:

The mirrors have to be manually folded now :

Fabric seats instead of leatherette. Contours are the same. Living with the white leatherette on my Tiago has been a pain; Although this is welcome move, would have preferred ventilated seats and design similar to Punch:

Wish they included map pockets this time around and improved the rear headrest design. I thought these were taller from the images from press release and expo - but they are still tiny for taller passengers.

The roof lining has been swapped with felt material - wonder how much they saved by doing this:

Central console looks modern now. Display is crisp and bright. It's not feature rich as the Punch model - lacks 'Arcade.ev' features. The lettering on the console seems to glow - looks like reflective material. Tweeters have been removed, it's just a 4 speaker system now. I love the floating unit - hopefully this is plug and play and can retrofit this to my car post warranty. Since the car was prepped for a launch event couldn't test the unit.

Other variants keeps the older unit and layout - you miss out on pretty much all the goodies unless you get the top variant:

The rotary dial now gets a soft touch finish. I think I liked the old knurled finish:

Faster AC charger is now an accessory. A welcome move; Doesn't make sense to pay additional premium on insurance because of the higher sticker price because of the bundled charger.

Tata has simplified the variants and the car now has 4 variants with the base only available in MR. Only the top variant (with all the new goodies) looked appealing to me and this could be a nice small city car with more discounts (should kick in soon). Tata perhaps should have done a BASS scheme for marketing, just to get more footfall. The showroom looked empty compared to Mahindra & MG - which were packed on a weekend.

Check out BHPian comments for more insights and information.

In order to get the best range from your EV Car, its Best to use regen as a braking aid rather than as a feature to increase range.

BHPian payeng recently shared this with other enthusiasts:

Surprising but True in my case/experience:

My Tiago EV - LR has completed 13 Months and 17K Kms on the Odometer. I use the car as my daily commute of 50 Kms (25 Kms One way. 50 Kms total both ways) in the pathetic Bengaluru Traffic with AC at around 22-24 Degrees most of the year thanks to wonderful Bengaluru weather. I am gentle on the throttle and drive around 55-65 Kmph on Open Roads. I do not use the Sports Mode either.

• For the first 9 months I remember Riding with Regen 1 all the time and used to get around 205-210 Kms of Range.

• Then I Switched to Driving with Regen 2 (Even Regen 3 in Bumper to Bumper Traffic) for the Next 3 Months. The reason being the range estimator on the dashboard showed an increase in the "Estimated Range" and I wanted to get the best Range possible. But in real life instead of an increase in the Range, I got around 190-195 Kms Range (A Drop of around 5-10%)..!!

• One evening on my way back from work I realized that the last 8 kms of my commute (I stay on the outskirts of the City) was on open roads with almost no braking, I could switch off the REGEN altogether

• I decided to turn off the REGEN for the last 8 kms on my way back from work and subsequently Back to Regen Level 1 in Traffic.. and guess what after a month I noticed that the Range jumped up to 210-215 Kms..!!
• In fact with the AC Turned OFF (NOV in Blr) and without any Heating, the car returned 225 Kms of Range..!!

  O% Battery Degradation in 13 Months/17K Kms..!!

What I Learnt: In order to get the best Range from your EV Car, its Best to use REGEN as a BRAKING AID rather than as a feature to INCREASE RANGE.

Its best to TURN OFF Regen while normal driving since You will be GENERATING less power, instead you will be LOSING more.

Read BHPian comments for more insights and information.

Recently, at around 40,000 kms, I again started seeing the HV critical alert when the battery went below 35%.

BHPian anshumandun recently shared this with other enthusiasts:

HV Critical and 45000 kms update:

Tata has replaced the entire battery to fix the HV Critical Alert issue.

I had posted in 2023 about facing HV critical alert issue when car was at 15,000 kms. That time, the Motor Control Unit and some HV wiring harness were changed and the car worked fine for 1 year.

Recently, at around 40,000 kms, I again started seeing the HV critical alert when the battery went below 35%. At 45,000 kms, I gave the car for servicing and asked them to check the problem. I was told that it's a battery issue and Tata has approved full battery replacement under warranty. It took 5 days for new battery to come and get installed. 45k service was also done which was a regular service with addition of brake oil change.

There is also a software update done. It feels like that the throttle response is slightly dull now but I am not sure. Need to drive more to confirm this.

Check out BHPian comments for more insights and information.

I noticed someone else on the Tata EV WhatsApp group was also experiencing the same issue on renewing the subscription after a gap.

BHPian varkey recently shared this with other enthusiasts:

So I had renewed my subscription on Saturday after over a year now that the price is reduced. Immediately after paying the fee, the app showed the subscription as active, however the car wasn't showing as connected. I tried going for a 10-15 minute drive, but still no luck, the app would just show the car as Disconnected and error out.

Initially I thought the internal mobile SIM didn't get automatically re-activated, so I emailed ZConnect support (zconnectsupport@tatamotors.com) and followed up with a call (1800-209-8282). They gave a standard response (possibly from their SOP for such issues) to drive the vehicle for 10-15 minutes, park the vehicle, lock, walk away with the key and wait another 5-10 minutes. Then try to send a command from the app. I had already done a similar step, but it made no difference so I conveyed the same. I was asked to email the details (again) so that they can escalate to the concerned team, which I did, shortly after I got a response saying they have escalated it. This was on Saturday night and still no response.

Then I noticed someone else on the Tata EV WhatsApp group was also experiencing the same issue on renewing the subscription after a gap. Based on the discussion, that person had success by force restarting the Telematics Control Unit under the passenger seat.

The telematics unit has a velcro covering and can be accessed from the rear. The TCU connector has many wires, and is a bit big, once removed, re-connect after 3-5 minutes. Be careful not to bend any of the pins. Once reconnected, go for a drive so that the device activates. Initially I did not start the vehicle after the TCU restart, and when the vehicle is off, the unit is mostly in a sleep state. Later during the day once I went for a drive, it quickly updated and showed active connection from the ZConnect app.

Read BHPian comments for more insights and information.

My 8-year-old XUV500 would have fewer service centre visits than the 1.5-year-old Tiago EV.

BHPian Aceman82 recently shared this with other enthusiasts:

I got the dreaded HV critical error today. The car had around 32% state of charge (SOC) when the HV Critical error appeared. The vehicle is approximately 1.5 years old and has only been driven for about 5,000 km. It's primarily used for school runs and is the third car in our garage.
The HV critical error suddenly appeared at around 32% SOC, and the vehicle went into limp mode before coming to a full stop. I turned off the car and restarted it; the error went away, but the car was operating with reduced performance. I drove it to my home garage and parked it, at which point the HV alert appeared once more.

I tried to charge the car, but the alert keeps popping up, and it refuses to charge. I'll need to call Roadside Assistance (RSA) tomorrow and request a tow to the service center if it fails to charge in the morning as well.

If a vehicle with only 5,000 km on it experiences battery issues, what are the chances of reliability in a high-mileage vehicle? Who would want to own such a car outside of warranty?

This is my third car in the garage (I have two other cars and two two-wheelers), so I don't mind it being in the service center for extended periods. Saying that, My 8 year old XUV500 would had less service centre visits than the 1.5 year old Tiago EV .

This is quickly turning out to be a garage queen where one needs infinite money and patience to keep a EV car from Tata.

Will keep this thread posted on updates to the Battery issue.

Check out BHPian comments for more insights and information.

Sadly it seems that while TATA is selling EVs like hot cakes they are struggling to service and maintain them.

BHPian AKINA recently shared this with other enthusiasts

Tiago EV LR XZ+ Tech Plus bought in March 2023. It was one of the 1st cars manufactured as the vin shows December 2022.

After close to 14,000 kms I have encountered the dreaded HV Critical Error.

Update:-

So I got the car charged to 100% and tried using it again. Everything worked fine initially.

However this time when the car hit 46% SOC the limp home mode began flashing followed by the HV error. I was on the W.E. highway on my way to Oberoi Mall so I carried on in the hopes that I can charge there.

Just as I entered the basement parking the car cut out. After cycling the iginition on and off it finally started long enough for me to park at the charger. Charging was done till 82% SOC and then i left for home.

The following day I immediately scheduled an appointment to bring her in to the ASC at Worli.

Shockingly the appointment date I received was for the 9th of September, almost a month away. The reason, huge load of EVs at the service centre. This was also true of the other ASC's i enquired with.

Sadly it seems that while TATA is selling EVs like hot cakes they are struggling to service and maintain them.

Finally the appointment date arrived and having charged the car to 100% SOC the previous night I set out for the Worli ASC which is about 40kms from my residence. Luckily dropped off the car with no issues apart from the usual long wait to meet the service advisor. They said that they will check the battery condition etc. and get back to me.

Just got a call a few minutes back saying that the entire HV battery pack is going to be replaced. Timeline approx is 10 days.

The battery pack will be a refurbushed unit according to them and the original battery warranty will remain the same as before. They have asked me to pick up the car and use it but the SOC should not go below 50%. Once they receive the replacement battery pack they will ask me to come in again.

Is this ok? Should i be asking them for anything else specifically?

I have asked them to send me the same in writing via email.

Read BHPian comments for more insights and information.

Looking at the price of Tigor.ev, it seems that Tata is least interested in selling it.

BHPian JoseTheScorpion recently shared this with other enthusiasts:

I was just going through the TATA.ev website, which I must say is an amazing webpage to visit , and I was checking the starting prices of all the ev vehicles.

• Tiago.ev starts @ 7.99 Lakhs (what!! that's a steal)
• Punch.ev starts @ 9.99 Lakhs
• Tigor.ev starts @ 12.49 Lakhs (4.5 Lakhs more than Tiago - for a bigger boot? )
• Nexon.ev starts @12.49 Lakhs
• Curvv.ev starts @17.49 Lakhs

Looking at the price of Tigor.ev, it seems that Tata is least interested in selling it. My question being why is it 4.5 lakhs more expensive than Tiago. I see only the following advantages in Tigor.ev over the Tiago.ev

Bigger battery:

• Tiago XE has a 19.2 kWh High energy density Lithium ion battery pack
• Tigor XE has a 26 kWh High energy density Lithium ion battery pack

More powerful electric motor:

• Tiago XE has a 45 kW motor
• Tigor XE has a 55 kW motor

I don’t see any other major differences, but asking for an additional 4.5 Lakhs for the Tigor XE seems highly overpriced—almost delusional.

Do you guys agree or am I missing something here?

Here's what BHPian Motard_Blr had to say on the matter:

The Tigor EV is sold majorly to fleet operators. It maybe a marketing strategy to discourage individual consumers from buying one so that the other EVs in their portfolio are not sold to fleet and become known as taxi cars.

Here's what BHPian narayans80 had to say on the matter:

When I visited the Tata showroom to see Punch.ev about a month back. The sales executive said, they were asked not to sell Tigor EV. I didn't dig further whether it was fleet only or there was a facelift around the corner.

But that explains the lack of price correction on the Tigor vis-a-vis other Tata EVs.

Here's what BHPian ferrarirules had to say on the matter:

Sub-4m sedans is a dying segment. So i think Tata is just not looking at the price for the same. Also, Tata doesn't sell Tigor.EV for fleet. It sells it in under Xpress-T moniker similar to Maruti selling dzire as Dzire-Tour. The pricing for Xpress-T can be completely different to Tigor.EV.

Here's what BHPian Nanolover had to say on the matter:

I think the ideal delta for comparison is the Tiago XT LR and the tigor XT in this case the difference is 3 lakhs. ( 9.99 vs 12.99). Tigor has an official discount of 75 k as per the website.

Even then, the price difference of 2 lakhs is a bit too much ( I own a tigor ev and Tiago ev) . The major advantage of tigor ev is much better space in the back ( Tiago is cramped in the back) and fuller rear seats with soft headrest and a center armrest. Also it gets a full size spare wheel over the Tiago.

The difference should be 75k - 1 lakh max in my opinion. Having said that I have seen quite a few tigors here in Trivandrum. Love their new burgundy red colour exclusive to the ev.

Here's what BHPian vshankarhere had to say on the matter:

Tigor.ev is unofficially discontinued I guess. You will not see the vehicle available anywhere. It is available only to fleet owners under Xpress T name. Few dealers might carry some stocks which is why the webpage is active I feel.

Here's what BHPian JunkyardHunter had to say on the matter:

The truth is that Tata isn't interested in selling sedans anymore. Check out their massive lineup and the Tigor cuts a lonely figure for itself as the only sedan, with no massive pros above the Tiago (apart form the bigger boot). Same goes for the Tigor.ev. If it hasn't been for the XPress-T, it would have been discontinued long ago.

Although this does beg the question - why doesn't Tata pull the Tigor and Tigor.ev from the market and sell only the XPress-T?

Check out BHPian comments for more insights and information.

The limp home mode begins flashing first followed by the usual loss in power and AC shutting off.

BHPian AKINA recently shared this with other enthusiasts:

Hey guys.

Need some advice.

Tiago EV LR XZ+ Tech Plus bought in March 2023. It was one of the 1st cars manufactured as the vin shows December 2022.

After close to 14,000 kms I have encountered the dreaded HV Critical Error but not just that...

The limp home mode begins flashing first followed by the usual loss in power and AC shutting off.

As i keep driving the HV error rears it's head, the car is still driveable but this is highly disconcerting.

Moreover this has happened three times now;

1. 1st time when returning from Pune to Mumbai, about 2kms from my place at 7% charge. Limp home mode was already on but the HV error popped up suddenly at a traffic light. Luckily I managed to get home and charge as the car was still driveable and did not shut off. After charging the error dissapeared, so I thought it wasn't a big deal.
2. 2nd time during heavy rain and getting splashed a bit by other vehicles the flashing limp home mode came on for the first time at 21% charge followed shortly by the HV error. Again I managed to drive home safely and charge the vehicle. Now I was getting a little concerned but again after charging the errors dissapeared.
3. 3rd and last time it again started with limp home mode flashing and then the HV error, this time at 32% charge. Reached home and parked it and haven't driven it since.

When I spoke to a service technician they gave me the useless recommendation to unplug the LV battery for a few minutes and then see if the error symbol dissapears. I don't want to reset the light, i need a solution to why it's happening.

Diagnosing via ZConnect shows no issues.

P.S- The car has been charged at home via slow charging about 98% of its life, although it was charged twice via DC chargers on my trip to Pune after which this saga has ensued.

Any help or advice would be greatly appreciated. Thanks.

Here's what BHPian ferrarirules had to say on the matter:

If you have been charging to 100% regularly, there are high chances of this being a bad battery. Please report this to Tata.

Here's what BHPian vj_v3 had to say on the matter:

I don't know why there is not much noise in Social media and here in TBHP about the HV critical alert on TATA EV's but based on my exposure to various whatsapp groups and telegram channels for Tata EV's, i would straight away make the claim that more than 30-40% of Tata Ev's have a battery problem that causes HV critical errors and stalls the vehicle.

I know that Tata is very well aware of the issues with their battery packs but they continue to launch more and more vehicles with the same problem.

I see atleast 2 people report these issues on different whatsapp groups each day, some are able to get home or to the closest charger by disconnecting the 12v battery for a few minutes and reconnecting to be able to drive a few kms before the error returns again, while most others are just stranded.

The Tata EV veterans purely based on their experience have determined that this issue does not happen if people deep cycle the battery pack (soc 10% or lower) on a regular basis (once in 1-2 months). For people who cycle the battery to say upto 25% regularly, but on one instance during a trip they end up going way below, the error occurs and they get stranded on the highway with towing to nearest service center as the only option. Same scenario for different people based on how low they have been going in the past. I'd like to note here that i have been deep cycling my own tata ev to various SOC levels, sometimes close to 0 and i have not faced the issue in the last 1.5 yrs/15k kms. There are many people who do the same and have not faced issues but 100's of others who are scared of deep cycling and possibly degrading their battery packs and end up hitting the issue at some point.

Each time this is reported to Tata service centers, they just keep the car for 2-3 days each time, probably clear some errors and do some kind of software calibration/balancing and return the car and in almost all cases, the issue just returns almost immediately. after 2-3 instances of this drama, they replace they engage Tata engineer and he recommends a battery pack replacement. And then they recommend customer not to go below 20% SOC etc and give other lame suggestions. The advertised range of a tiago is 315, the real world range is 200 or less and then they recommend us not to go below 20%, what a joke.

Many customers with replaced battery pack have faced the same issue again and there are people who have had 2 or even 3 battery packs replaced so far to no avail.

Some unfortunate customer face this issue immediately after they get a new (not clear if they are brand new or refurbished batteries) pack as well. It definitely seems like some kind of memory effect of the cells that no one is able to explain or fix.

With the number of issues i have seen, i think that this is a total product failure and Tata knows that this is too big of a problem for them to go back to old customers, do a recall and fix. They probably have a huge shipment of these screwed up cells that they procured several years ago and they continue to shove them in more and more cars just continuing to magnify the problem they got themselves in. I wonder when this will blow up.

I heard the punch got a new battery pack from a new vendor but was shocked to hear that even punch customers are facing the same HV critical error issue.

One blogger has been making posts and tweets about his own ordeal with his tata Ev and also covering issues that various other people have been facing. It appears he has also exchanged court notices with Tata and the dealership related to the HV critical error incidents.

• HV Critical error 1
• Court notice
• His tips
• His HV critical incident blog post

Here's what BHPian anshumandun had to say on the matter:

My Tiago EV has done 40,000 kms now and I am facing the same issue. Limp mode activates when battery level reaches around 35% or lower and then HV alert kicks in. Will give it to the service center for diagnosis.

It's really sad that this car (and maybe other Tata EVs too) are plagued by the HV alert issue. Otherwise it's a wonderful city commute car.

Read BHPian comments for more insights and information.